Company Background

Our client is an international team of industry and domain experts focused on transforming the travel and transportation industry through advanced technologies. The company helps industry leaders achieve commercial success by leveraging modern, data-driven and scalable software solutions.

Project Description

The goal is to join a self-organizing QA team and lead testing initiatives across a microservices-based platform. The project involves close collaboration with Product Owners, Architects, and Engineering teams to ensure high-quality software delivery. You will drive testing strategies, automation, and best practices across the full development lifecycle, with a strong focus on API and end-to-end testing.

Technologies

• Python, SQL
• Postman, Datadog
• Robot Framework, Playwright
• REST, Pub/Sub, Kafka
• Kubernetes, GCP

What You'll Do

• Design and implement test strategies and test plans
• Develop and maintain automated test scripts (API, E2E, contract, performance)
• Perform manual testing for complex scenarios
• Implement test automation for microservices architecture
• Integrate automated tests into CI/CD pipelines
• Identify, track, and manage defects
• Maintain test documentation (test cases, plans, reports)
• Collaborate with cross-functional teams to ensure product quality
• Mentor QA engineers and promote best practices
• Monitor quality metrics and continuously improve testing processes

Job Requirements

• 5+ years of experience in QA / Test Automation
• Strong experience with API testing and microservices-based systems
• Hands-on experience with Python
• Deep understanding of manual and automated testing methodologies
• Experience with various testing types (E2E, API, contract, performance, UI)
• Strong knowledge of SQL
• Understanding of cloud platforms (GCP or similar)
• Experience integrating testing into CI/CD pipelines
• Strong analytical and problem-solving skills
• Experience working in Agile environments
• Ability to create and maintain test documentation and strategies
• Strong communication and collaboration skills
• English level: B2 (Upper-Intermediate) or higher

What Do We Offer

The global benefits package includes:

• Technical and non-technical training for professional and personal growth;
• Internal conferences and meetups to learn from industry experts;
• Support and mentorship from an experienced employee to help you professional grow and development;
• Health insurance;
• English courses;
• Sports activities to promote a healthy lifestyle;
• Flexible work options, including remote and hybrid opportunities;
• Referral program for bringing in new talent;
• Work anniversary program and additional vacation days.

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

Project Duration  

6-month engagement with the possibility of extension

What You’ll Do  

• Lead structured technical discovery with the hardware and platform engineering teams to establish the API surface, platform readiness, and target workload definitions
• Author the Architecture Decision Record (ADR) documenting the integration approach, technology choices, and key design decisions
• Define the requirements baseline, functional and non-functional, and produce the risk register
• Negotiate and agree the revised Statement of Work for Phases 1 and 2 with the client
• Establish the reference workload definition and benchmark criteria to be used through the POC
• Maintain technical governance and architectural coherence across the integration build
• Direct the engineering team on component delivery: workload adapter, hardware dispatch client, telemetry bridge, and any required platform-side changes
• Manage the client relationship on a day-to-day basis: progress reporting, risk escalation, and gate reviews
• Review and sign off integration components before gate conditions are assessed
• Lead knowledge transfer and runbook acceptance sessions with client engineering teams
• Support the customer Proof of Value demonstration in an advisory capacity

What You Bring 

• Demonstrable background in cloud platform architecture, distributed systems, and API design — REST and gRPC in particular
• Experience integrating third-party hardware or specialised compute into cloud scheduling and resource management layers
• Familiarity with workload orchestration: Kubernetes, custom schedulers, resource plugins, or equivalent
• Working knowledge of observability tooling: OpenTelemetry, Prometheus, Grafana, or comparable stacks
• Comfort operating across the full stack, from infrastructure (IaC, networking, cloud providers) to API and platform layers
• SRE background or equivalent: SLO definition, telemetry design, incident response, and operational documentation
• Ability to design for observability and failure modes from the outset, not as a post-build afterthought
• Experience producing runbooks and operational documentation for technical handover
• Proven ability to lead client-facing technical engagements, managing expectations, communicating risk, and maintaining trust in ambiguous early-stage programmes
• Comfortable working with non-traditional technical counterparts, such as hardware scientists who may not be experienced platform API producers
• Skilled at structured requirements elicitation under significant uncertainty — able to extract requirements through interviews, prototypes, and reference examples rather than documentation
• Experience producing Architecture Decision Records, revised SOW documents, and risk registers as formal engagement outputs
• Experience operating as a senior contractor or fractional leader, comfortable with part-time engagement structures and accountability for commercial gate conditions without full-time oversight
• Able to take ownership of engagement quality and client confidence independently

Nice to Have

• Prior exposure to custom silicon, FPGA integration, or specialised AI accelerator hardware
• Experience in sovereign cloud, data sovereignty, or regulated compute environments
• Familiarity with AI/ML workload types: inference serving, training pipelines, batch processing
• Experience with M2M identity, workload authentication, and platform governance patterns
• Background in early-stage or venture-backed technology companies where engineering rigour and commercial pragmatism must coexist

English level

Upper-Intermediate

Legal & Hiring Information

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

Project Duration  

6-month engagement with the possibility of extension

What You’ll Do  

• Lead structured technical discovery with the hardware and platform engineering teams to establish the API surface, platform readiness, and target workload definitions
• Author the Architecture Decision Record (ADR) documenting the integration approach, technology choices, and key design decisions
• Define the requirements baseline, functional and non-functional, and produce the risk register
• Negotiate and agree the revised Statement of Work for Phases 1 and 2 with the client
• Establish the reference workload definition and benchmark criteria to be used through the POC
• Maintain technical governance and architectural coherence across the integration build
• Direct the engineering team on component delivery: workload adapter, hardware dispatch client, telemetry bridge, and any required platform-side changes
• Manage the client relationship on a day-to-day basis: progress reporting, risk escalation, and gate reviews
• Review and sign off integration components before gate conditions are assessed
• Lead knowledge transfer and runbook acceptance sessions with client engineering teams
• Support the customer Proof of Value demonstration in an advisory capacity

What You Bring 

• Demonstrable background in cloud platform architecture, distributed systems, and API design — REST and gRPC in particular
• Experience integrating third-party hardware or specialised compute into cloud scheduling and resource management layers
• Familiarity with workload orchestration: Kubernetes, custom schedulers, resource plugins, or equivalent
• Working knowledge of observability tooling: OpenTelemetry, Prometheus, Grafana, or comparable stacks
• Comfort operating across the full stack, from infrastructure (IaC, networking, cloud providers) to API and platform layers
• SRE background or equivalent: SLO definition, telemetry design, incident response, and operational documentation
• Ability to design for observability and failure modes from the outset, not as a post-build afterthought
• Experience producing runbooks and operational documentation for technical handover
• Proven ability to lead client-facing technical engagements, managing expectations, communicating risk, and maintaining trust in ambiguous early-stage programmes
• Comfortable working with non-traditional technical counterparts, such as hardware scientists who may not be experienced platform API producers
• Skilled at structured requirements elicitation under significant uncertainty — able to extract requirements through interviews, prototypes, and reference examples rather than documentation
• Experience producing Architecture Decision Records, revised SOW documents, and risk registers as formal engagement outputs
• Experience operating as a senior contractor or fractional leader, comfortable with part-time engagement structures and accountability for commercial gate conditions without full-time oversight
• Able to take ownership of engagement quality and client confidence independently

Nice to Have

• Prior exposure to custom silicon, FPGA integration, or specialised AI accelerator hardware
• Experience in sovereign cloud, data sovereignty, or regulated compute environments
• Familiarity with AI/ML workload types: inference serving, training pipelines, batch processing
• Experience with M2M identity, workload authentication, and platform governance patterns
• Background in early-stage or venture-backed technology companies where engineering rigour and commercial pragmatism must coexist

English level

Upper-Intermediate

Legal & Hiring Information

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

Project Duration  

6-month engagement with the possibility of extension

What You’ll Do  

• Lead structured technical discovery with the hardware and platform engineering teams to establish the API surface, platform readiness, and target workload definitions
• Author the Architecture Decision Record (ADR) documenting the integration approach, technology choices, and key design decisions
• Define the requirements baseline, functional and non-functional, and produce the risk register
• Negotiate and agree the revised Statement of Work for Phases 1 and 2 with the client
• Establish the reference workload definition and benchmark criteria to be used through the POC
• Maintain technical governance and architectural coherence across the integration build
• Direct the engineering team on component delivery: workload adapter, hardware dispatch client, telemetry bridge, and any required platform-side changes
• Manage the client relationship on a day-to-day basis: progress reporting, risk escalation, and gate reviews
• Review and sign off integration components before gate conditions are assessed
• Lead knowledge transfer and runbook acceptance sessions with client engineering teams
• Support the customer Proof of Value demonstration in an advisory capacity

What You Bring 

• Demonstrable background in cloud platform architecture, distributed systems, and API design — REST and gRPC in particular
• Experience integrating third-party hardware or specialised compute into cloud scheduling and resource management layers
• Familiarity with workload orchestration: Kubernetes, custom schedulers, resource plugins, or equivalent
• Working knowledge of observability tooling: OpenTelemetry, Prometheus, Grafana, or comparable stacks
• Comfort operating across the full stack, from infrastructure (IaC, networking, cloud providers) to API and platform layers
• SRE background or equivalent: SLO definition, telemetry design, incident response, and operational documentation
• Ability to design for observability and failure modes from the outset, not as a post-build afterthought
• Experience producing runbooks and operational documentation for technical handover
• Proven ability to lead client-facing technical engagements, managing expectations, communicating risk, and maintaining trust in ambiguous early-stage programmes
• Comfortable working with non-traditional technical counterparts, such as hardware scientists who may not be experienced platform API producers
• Skilled at structured requirements elicitation under significant uncertainty — able to extract requirements through interviews, prototypes, and reference examples rather than documentation
• Experience producing Architecture Decision Records, revised SOW documents, and risk registers as formal engagement outputs
• Experience operating as a senior contractor or fractional leader, comfortable with part-time engagement structures and accountability for commercial gate conditions without full-time oversight
• Able to take ownership of engagement quality and client confidence independently

Nice to Have

• Prior exposure to custom silicon, FPGA integration, or specialised AI accelerator hardware
• Experience in sovereign cloud, data sovereignty, or regulated compute environments
• Familiarity with AI/ML workload types: inference serving, training pipelines, batch processing
• Experience with M2M identity, workload authentication, and platform governance patterns
• Background in early-stage or venture-backed technology companies where engineering rigour and commercial pragmatism must coexist

English level

Upper-Intermediate

Legal & Hiring Information

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

What You’ll Do  

• Back-end development using Ruby on Rails, AWS, MySQL, PostgreSQL, RabbitMQ
• Building of REST API
• Integrating with dispatch systems of taxi service providers and other 3rd party services
• Participating in meetings with the customer

What You Bring  

• 4-5 years of experience in Ruby on Rails
• Practice in relational databases including MySQL, PostgreSQL
• Background in delayed asynchronous job execution (RabbitMQ)
• Skills in working with and developing REST API
• Knowledge of object-oriented programming
• Architectural sense and a passion for high-quality code
• Familiarity with version control systems (GIT)

Nice to have 

• Practice in AWS and NoSQL databases like DynamoDB
• Acquaintance with in-memory databases (Memcached, Redis)
• Willingness to improve the existing and get new skills

English level 

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

What You’ll Do  

• Back-end development using Ruby on Rails, AWS, MySQL, PostgreSQL, RabbitMQ
• Building of REST API
• Integrating with dispatch systems of taxi service providers and other 3rd party services
• Participating in meetings with the customer

What You Bring  

• 4-5 years of experience in Ruby on Rails
• Practice in relational databases including MySQL, PostgreSQL
• Background in delayed asynchronous job execution (RabbitMQ)
• Skills in working with and developing REST API
• Knowledge of object-oriented programming
• Architectural sense and a passion for high-quality code
• Familiarity with version control systems (GIT)

Nice to have 

• Practice in AWS and NoSQL databases like DynamoDB
• Acquaintance with in-memory databases (Memcached, Redis)
• Willingness to improve the existing and get new skills

English level 

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

What You’ll Do  

• Back-end development using Ruby on Rails, AWS, MySQL, PostgreSQL, RabbitMQ
• Building of REST API
• Integrating with dispatch systems of taxi service providers and other 3rd party services
• Participating in meetings with the customer

What You Bring  

• 4-5 years of experience in Ruby on Rails
• Practice in relational databases including MySQL, PostgreSQL
• Background in delayed asynchronous job execution (RabbitMQ)
• Skills in working with and developing REST API
• Knowledge of object-oriented programming
• Architectural sense and a passion for high-quality code
• Familiarity with version control systems (GIT)

Nice to have 

• Practice in AWS and NoSQL databases like DynamoDB
• Acquaintance with in-memory databases (Memcached, Redis)
• Willingness to improve the existing and get new skills

English level 

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

What You’ll Do  

• Back-end development using Ruby on Rails, AWS, MySQL, PostgreSQL, RabbitMQ
• Building of REST API
• Integrating with dispatch systems of taxi service providers and other 3rd party services
• Participating in meetings with the customer

What You Bring  

• 4-5 years of experience in Ruby on Rails
• Practice in relational databases including MySQL, PostgreSQL
• Background in delayed asynchronous job execution (RabbitMQ)
• Skills in working with and developing REST API
• Knowledge of object-oriented programming
• Architectural sense and a passion for high-quality code
• Familiarity with version control systems (GIT)

Nice to have 

• Practice in AWS and NoSQL databases like DynamoDB
• Acquaintance with in-memory databases (Memcached, Redis)
• Willingness to improve the existing and get new skills

English level 

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Our Partner 

Our partner (listed on NASDAQ) is the leading expert in 5G ready cloud-native, network intelligence solutions for telecom operators transitioning to 5G. Their Network Intelligence consists of Network Visibility, Service Assurance, and Network Insights. The Network Intelligence suite offers intelligent, container-based, on-demand solutions to deliver network analysis from the RAN to the Core for 5G assurance. Utilizing automated and dynamic solutions with smart minimal data collection and on-demand troubleshooting and cutting-edge techniques based on machine learning, these solutions work in harmony to provide operators an understanding of the entire customer experience and allow them to troubleshoot network performance from a high to granular level while reducing storage costs and cloud resource utilization.

Role Overview

We are looking for a proactive and experienced Fullstack Java Developer to help migrate existing Node.js backend services to a robust Java-based architecture. This role is ideal for someone with a strong backend focus on Java, while also being comfortable working across the stack with modern frontend technologies like React or Angular. You will be responsible for designing, implementing, and maintaining scalable solutions, collaborating with cross-functional teams, and ensuring seamless integration across systems. You will be part of the Infra team within the Infra & Orch Group, which focuses on developing tools and processes for installing, configuring, and managing our Partner’s products. The Infra team is responsible for both in-house applications that support product infrastructure (such as user management, authentication integrations, and system configurations) as well as third-party open-source solutions, including databases (MongoDB, Vertica), monitoring tools (Prometheus, EFK), and other technologies like Kafka and MinIO. 

Responsibilities 

• Migrate backend components from Node.js to Java, using frameworks such as Spring and Hibernate. 
• Design and implement scalable, maintainable backend services and APIs. 
• Design data models and queries with Spring Data, optimizing for performance and scalability. 
• Work with NoSQL databases (e.g., MongoDB, Couchbase). 
• Services with Apache Kafka for message streaming. 
• Maintain and improve existing frontend components using HTML, CSS, JavaScript, and modern frameworks like React or Angular. 
• Collaborate with the product owner, architect, frontend developers, DevOps, and other team members on end-to-end product delivery. 
• Take end-to-end responsibility for backend features – from requirements gathering to production support. 
• Identify bottlenecks, bugs, and devise elegant solutions to mitigate and address them. 
• Implement best practices for code quality, testing, and performance optimization. 
• Write unit and integration tests for critical components. 
• Participate in code reviews and technical design discussions. 
• Deploy and manage microservices in containerized environments using Docker and Kubernetes. 

Requirements 

Must Have: 

• Bachelor’s degree or Master’s degree in Computer Science or Computer Engineering. 
• 5+ years overall Java developer experience.  
• Experience working with frameworks such as Spring, Hibernate, REST API. 
• Experience with NoSQL databases like MongoDB or Couchbase. 
• Strong understanding of JavaScript (ES6+) and asynchronous programming. 
• Experience implementing OAuth2, JWT and SSO mechanism. 
• Experience with authentication, authorization protocols and API security practices. 
• Familiarity with Git and version control workflows. 
• Basic understanding of Docker, Kubernetes, Helm and microservices. 
• Good understanding of software development principles and lifecycles. 
• Knowledge of CI/CD pipelines (e.g., Git, Jenkins). 
• Experience in NodeJs. 
• Fluent English. 
• Strong analytical and problem-solving skills. 
• Highly independent and self-motivated. 
• Good communication skills and the ability to work closely with frontend teams. 
• Proactive communicator, comfortable raising concerns and proposing improvements. 

Nice to Have: 

• Experience with TypeScript in Node.js applications. 
• Comfortable with frontend technologies like React, Angular (React preferred). 
• Familiar working with Vertica DB or other relational databases. 
• Familiarity with 3rd party tools (Grafana, Prometheus, ELK). 
• Understanding of message queues (e.g., Kafka, RabbitMQ). 
• Familiarity with Swagger or similar tools for API documentation. 
• Familiarity with Elasticsearch for search capabilities and log analytics. 

Reasons to Work with Us 

• Competitive financial conditions. 
• Opportunity to work on internationally recognized projects. 
• Flexible schedule and a hybrid work model, prioritizing remote work as much as possible to support work-life balance. 
• An exciting career path within a friendly, dynamic, and growing organization. 
• Professional development opportunities in a multicultural environment. 
• Private medical coverage with Medlife or Regina Maria. 
• Meal vouchers. 
• Gift vouchers for special occasions such as birthdays, weddings, or childbirth. 
• Wellbeing programs, including sick days, 7Card subscriptions, and relaxation facilities in the office. 
• Team-building events and other social experiences. 
• Budget allocated for certifications relevant to your project. 
• Workshops, internal training sessions, and knowledge-sharing opportunities. 
• Convenient city-center office location. 
• Shared parking spaces. 

As a global digital transformation company, Orion values creating a productive, diverse work environment. We are committed to maintaining a positive work environment where our people value traits that make each one of us different from one another. We all bring a diverse set of perspectives, work and life experiences, and our differences make us more valuable both internally and for our clients. 

We are looking for a seasoned Android Engineer to join the Geo Navigation team and help shape the future of maps and navigation for drivers and couriers. This involves exciting product challenges, such as building seamless turn-by-turn navigation experiences, collaborating closely with product-design and backend teams, and supporting the migration of rider and eater maps to our internal solution. You’ll have the opportunity to contribute to the development of backend-driven UI and transform how millions of users interact with our mapping and navigation systems.

With over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and Africa. And it's all thanks to our people.

We believe in creating an inclusive environment where everyone is welcome, regardless of race, colour, religion, gender identity, sexual orientation, age, or disability.

Our ultimate goal is to make cities for people, not cars, and we need your help to achieve this mission!

As an Android Engineer, you will be responsible for designing, developing, and deploying mobile solutions that improve the turn-by-turn navigation experience for our drivers and couriers. That will mostly happen via coding in Kotlin, combining elements of backend-driven UI.

Mobile engineers at Bolt usually get onboarded to back-end as well within their first year, so this could be a great opportunity if you are keen to grow as a full-stack engineer. All engineers at Bolt have a heavy inclination towards product thinking, so you will get a chance to shape and drive exciting product initiatives yourself, in partnership with your Product Manager and the rest of the Geo Navigation team!

• Designing, developing, A/B testing and deploying solutions that improve our user journey.
• Working closely with back-end engineers to define and implement API integrations for micro-mobility-related business logic.
• Testing your solutions thoroughly to make sure they meet their intended goals. That involves building meaningful unit tests and working closely with QA testers to cover usual and edge case scenarios.
• Building a deep understanding of our products and of the way they impact the business metrics and end users. Contributing ideas and constructive feedback to our product roadmap.
• Leading feature developments from idea to the point where they bring positive, validated impact to the end users.
• Mentoring engineers and supporting new talent attraction.

• You are great at making data-driven decisions that positively impact the business. Experience in product companies with a bias for properly experimenting their product hypotheses is a plus.
• You have a drive for leading initiatives and features till the end, even if the last mile is the hardest, and for monitoring and ensuring their success even after delivery.
• You have experience testing and releasing mobile changes while ensuring their quality across multiple Android versions. You have experience with unit testing and automation testing frameworks
• You have strong principles towards writing clean, simple, secure, and maintainable code
• You possess a solid understanding of algorithms and data structures.

Experience is great, but what we really look for is drive, intelligence, and integrity. So even if you don’t tick every box, please consider applying!

• Play a direct role in shaping the future of mobility.
• Impact millions of customers and partners in 600+ cities across 50+ countries.
• Work in fast-moving autonomous teams with some of the smartest people in the world.
• Accelerate your professional growth with unique career opportunities.
• Get a rewarding salary and stock option package that lets you focus on doing your best work.
• Enjoy the flexibility of working in a hybrid mode with a minimum of 3 days in the office each week to foster strong connections and teamwork.
• Take care of your physical and mental health with our wellness perks.

*Some perks may differ depending on your location and role.

Java Backend Engineer

Hybrid, Bucharest, Romania

JOB OVERVIEW

The Legion application is a high-performance data-driven Java enterprise application that implements sophisticated scheduling and optimization algorithms. It also provides the necessary endpoints for our Web and mobile frontend applications. As a Senior Software Engineer, you will be a member of the team responsible for the implementation and evolution of this application. You will need to be able to write secure, efficient, enterprise-quality Java code, and have a deep understanding of the techniques and technologies that are necessary for scalability and performance. You will also need knowledge and experience with data modeling and relational databases. Our application runs on AWS, so experience with containerization and cloud deployments is desirable. We're using Springboot, Hibernate, MySQL, and JSON, so familiarity with these technologies will be helpful. Frontend experience in JavaScript and Angular and/or React is a big plus.

RESPONSIBILITIES AND DUTIES

• Design and implement: Build scalable, high-performance, and secure features for our Time & Attendance engine, including time-tracking, scheduling rules, overtime logic, and labor compliance calculations.
• Leverage AI tooling daily: Use AI coding assistants and LLM-powered tools throughout your workflow — code generation, test scaffolding, code review acceleration, documentation, and debugging — and share learnings with your team.
• Own quality: Write comprehensive unit tests, integration tests, and collaborate on automated test suites. AI-generated code still needs rigorous human review and validation.
• Drive technical decisions: Participate actively in architecture discussions, propose solutions, and document trade-offs with clarity.
• Mentor and review: Give substantive code reviews, pair with junior engineers, and model best practices including responsible AI-assisted development.
• Collaborate cross-functionally: Work closely with Product Management, UX, and QA to translate business requirements into robust technical specifications and BDD scenarios.
• Troubleshoot production issues: Diagnose and resolve complex bugs in distributed, high-volume environments with urgency and care.
• Continuously improve: Identify and drive performance, scalability, and reliability improvements across the platform.
• Uphold security standards: Participate in security reviews and ensure implementations comply with industry standards and internal policies.

REQUIRED SKILLS AND QUALIFICATIONS

• Experience: 5-10+ years of professional software development with deep expertise in Java (or C++) in enterprise or SaaS environments.
• AI tooling proficiency: Demonstrated, habitual use of AI coding assistants (e.g., GitHub Copilot, Cursor, Claude Code, ChatGPT, Tabnine) in daily development - you should be able to describe specific workflows where AI tooling materially changed how you work.
• Backend depth: Strong command of Spring Boot, REST API design, Hibernate/JPA, and relational databases (MySQL or equivalent), including query optimization and indexing strategies.
• Distributed systems: Solid understanding of microservices architecture, asynchronous patterns, and high-volume transaction handling.
• Cloud & containerization: Hands-on experience with AWS and containerized deployments (Docker, Kubernetes).
• Software craftsmanship: Deep familiarity with coding standards, code review practices, CI/CD pipelines, and DevOps principles.
• Testing discipline: Proven ability to write and maintain unit tests, integration tests, and automated test suites - including for AI-generated code.
• Problem-solving: Demonstrated ability to troubleshoot and debug complex, multi-layered systems independently.
• Communication: Excellent written and verbal communication skills; able to document technical decisions clearly for both engineers and non-technical stakeholders.
• Education: Bachelor's or Master's degree in Computer Science, Computer Engineering, or equivalent practical experience.

PREFERRED QUALIFICATIONS AND ATTRIBUTES

• AI-native workflow: You've gone beyond autocomplete — you use AI for architecture brainstorming, test generation, spec drafting, PR summaries, and are actively experimenting with agentic coding tools.
• Workforce management or HCM domain experience: Familiarity with time-and-attendance, payroll, scheduling, or labor compliance systems is a significant advantage.
• Frontend exposure: Working knowledge of JavaScript and either Angular or React.
• Leadership track record: Experience informally leading feature teams, running design reviews, or serving as a technical point of contact for a product area.
• Performance engineering: Prior work on query optimization, caching strategies, or throughput/latency improvements in high-volume applications.
• Agile fluency: Comfortable operating in fast-paced sprint cycles with evolving requirements.
• Integrity and judgment: Demonstrated ethical behavior and sound judgment, including when evaluating AI-generated outputs for correctness, bias, and security implications.

In your interviews, we'll ask you to describe:

• Which AI coding tools you use and how frequently.
• A specific example where an AI tool helped you design, refactor, or debug something non-trivially.
• How you validate and review AI-generated code to catch errors, security issues, or performance problems.
• Your view on the limits of current AI coding assistants and where human judgment remains essential.

We are not looking for performative AI enthusiasm. We are looking for engineers who have genuinely integrated these tools into their craft and can think critically about their strengths and failure modes.

ABOUT LEGION

Join Legion's mission to turn hourly jobs into good jobs. We're a mission-driven team seeking exceptional talent to propel this vision. Embrace a culture that's collaborative, fast-paced, and entrepreneurial. With us, you'll grow your skills, work closely with experienced executives, and contribute significantly to our mission. Our award-winning AI-native workforce management platform is intelligent, automated, and employee-centric and proven to deliver 13x ROI. We help labor-intensive organizations maximize labor efficiency and employee engagement simultaneously. Legion has earned recognition for its innovation, including spots on the Inc. 5000 list, Forbes’ Next Billion Dollar Startups, and awards for our AI technology. Backed by leading investors such as Norwest Venture Partners, Stripes, First Round Capital, XYZ Ventures, Webb Investment Network, Workday Ventures, and NTT DOCOMO Ventures, we're making real change. If you're ready to make an impact and grow your career, Legion is where you belong. Join us in making hourly work rewarding and fulfilling.

BACKGROUND AND OPPORTUNITY

There are almost 75 million hourly workers in the United States, representing more than half of the entire workforce. Historically, managing hourly employees has been difficult due to high attrition (average of 60%) and high replacement costs (average of $3,200 per employee in retail). The ongoing labor shortage and competition from the gig economy, make it more difficult to attract and retain hourly employees. The top reasons hourly employees leave their jobs are a lack of schedule empowerment, poor communication with employers, and an inability to get paid early. Gen Z and the millennial workforce demand gig-like flexibility, modern technology, and compelling work options. Legion’s mission is to turn hourly jobs into good jobs, serving the hourly workers who make up the majority of the US workforce. We believe in empowering employees and helping employers be efficient and innovative by enabling intelligent automation powered by Legion’s Workforce Management platform to optimize labor efficiency and enhance the employee experience simultaneously. 

Legion WFM was built for the cloud with AI at the core and is designed to handle the complexity of modern businesses and meet the needs of today’s hourly employees. Our team is composed of dedicated individuals from all backgrounds and experiences, globally distributed across all time zones. For more information, visit https://legion.co 

COMPENSATION & BENEFITS

At Legion, we offer competitive compensation and benefits packages to all employees. As a hybrid employer in Bucharest, Romania, pay for positions is determined using local, national, and industry-specific survey data. We strive to make competitive offers allowing employees room for future growth. Salaries will be based on the applicant’s location, level of experience, education, and specialized knowledge and skills. Additionally, we consider the external market rate, the amount we have budgeted internally, and internal equity within the company for the same position. 

Benefits include, but are not limited to: 

• Health Benefits
• Paid Time Off and Paid Holidays
• Equity
• Monthly Wellness Reimbursement
• Meal Vouchers

EQUAL EMPLOYMENT OPPORTUNITY

Legion Technologies is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will be considered for employment without regard to race, color, religion, sex, age, disability, marital status, familial status, sexual orientation, pregnancy, genetic information, gender identity, gender expression, national origin, ancestry, citizenship status, veteran status, and any other legally protected status under federal, state, or local anti-discrimination laws.

DISABILITY ACCOMMODATION

For individuals with disabilities who need additional assistance at any point in the application and interview process, please email recruiting@legion.co