Job Title: Senior Backend Engineer 
Employment Status: Full-time
Location: Vienna, Austria - Hybrid (preferred) or Remote - EU
Compensation: competitive compensation + performance-based bonus and equity options.
Final compensation is negotiable based on experience and qualifications.
Benefits: free in-office: lunch, drinks, coffee, snacks, Wiener Linien ticket, a yearly company retreat, regular team events

Job Summary

At Ketryx, we’re on a mission to help medical software teams build secure, reliable applications that make a real difference in people’s lives. We give them the tools to automate the tough parts of compliance and quality so they can focus on what matters most: creating life-saving products with confidence.

We're looking for a Senior Backend Engineer to join our team. In this role, you’ll work on the backend of our platform, helping medical device companies get their products to market faster. You’ll take ownership of features from start to finish, designing the architecture, writing the code, and seeing everything through to production. Your work will have a direct impact on the future of healthcare technology.

This is a hybrid role in Vienna, with a minimum of three days per week spent on-site. We’re open to remote work for exceptional candidates.

About You

You’re passionate about software and making a real impact. You’re curious, enjoy solving tough problems, and love the idea of working in a fast-moving environment where you can take initiative. You’re comfortable collaborating in English with team members from different areas, and you take pride in owning projects from beginning to end. Above all, you’re excited about using technology to improve patient outcomes.

What You’ll Own & Contribute To

Database Design

Design and evolve PostgreSQL schemas, write efficient queries, apply indexing strategies, and help ensure the database remains performant and maintainable as the product grows.

Backend Development

Build new integrations between the Ketryx platform and other systems, APIs, and workflows. Contribute to improving latency, throughput, and fault tolerance across the backend stack.

Maintainable Systems

Write clean, well-tested code and contribute to standards around migrations, documentation, and testing. Help ensure the system remains easy to understand, debug, and extend.

Operational Reliability

Participate in monitoring, debugging, and incident response. Help identify performance bottlenecks and reliability issues, and contribute fixes and improvements.

Collaboration

Work closely with Product, Client Operations, Compliance, Security, and other engineers to deliver features that meet both business and regulatory requirements and resolve any technical challenges that come up

What We’re Looking For

• 5+ years of experience working as a software engineer, with strong experience in backend development
• Solid skills in TypeScript
• Strong experience with PostgreSQL: schema design, query optimization, indexing, and performance tuning
• Solid understanding of backend performance and maintainability, including refactoring and technical debt management
• Comfortable collaborating across teams and participating in technical discussions and design reviews
• Comfortable working in English and collaborating across teams

Bonus Points

• Experience with Prisma and Next.js
• Experience with GraphQL (urql or Apollo)
• Familiarity with AWS services like S3, RDS, and Elastic Beanstalk
• Familiarity with Docker and Kubernetes in production or near-production environments.
• Strong habits around testing (Jest, Cucumber, Playwright)
• Experience working in regulated industries like healthcare or finance
• Experience with Kotlin and Spring
• An interest in mentoring and helping others grow

Our Tech Stack

Frontend: TypeScript, React, Next.js, Tailwind, JollyUI
Backend: PostgreSQL, Redis, GraphQL (urql), Prisma
Testing: Jest, Cucumber, Playwright
Infrastructure: AWS (e.g. S3, RDS, Elastic Beanstalk), Sentry
Collaboration: Slack, GitHub, Figma, Jira, Confluence

Compensation

At Ketryx, we offer a competitive and transparent compensation package that reflects your experience and skills:

For candidates in Austria with 3–5 years of experience, the gross annual salary starts at €70,000+.

For candidates in Austria with more than 5 years of experience, the gross annual salary starts at €90,000+.

We offer all-in contracts, with final compensation tailored to your qualifications and experience. In addition to the base salary, our package includes a performance-based bonus and stock options, aligning your success with the company’s growth. For remote candidates, salary may be adjusted slightly based on location.

Job Description

The Senior ETL Engineer is responsible for the design, development, optimization, and long-term stewardship of enterprise data pipelines, data warehouse, and lakehouse solutions that support reporting, analytics, and advanced data use cases. This role goes beyond individual pipeline delivery, providing technical leadership, mentorship, and architectural collaboration across the data warehousing function.

The Senior ETL Engineer partners closely with business stakeholders, data scientists, analysts, and BI teams to ensure data products are reliable, scalable, secure, and aligned with business strategy. This role plays a critical part in shaping data standards and ensuring the quality and integrity of enterprise reporting data. Key customers include data science, analytics, and marketing teams operating across marketing, operations, customer insights, and finance.

Senior ETL Engineer Job Duties:

Data Engineering

• Design, build, and maintain scalable, high-performance ETL/ELT pipelines supporting analytics, reporting, and advanced data use cases
• Define and enforce data engineering standards, best practices, and reusable patterns for pipeline development
• Lead data modeling efforts to ensure datasets are optimized for analytics, performance, and usability
• Evaluate and recommend improvements to existing data architectures, tools, and processes to support growth, scalability, and cost efficiency
• Leverage AI tools responsibly to improve ETL development productivity and quality, including accelerating pipeline development, test generation, documentation, anomaly detection, and operational troubleshooting

Data Quality, Reliability & Operations

• Establish and enforce data quality, validation, fault-tolerance, and automated testing frameworks across all pipeline stages
• Ensure data integrity, accuracy, freshness, and lineage throughout the data lifecycle

DataOps, Automation & Optimization

• Lead DataOps and CI/CD practices for data pipeline deployment and management
• Drive automation to reduce manual processes in all stages of development
• Continuously optimize pipeline performance through query tuning, architectural improvements, and technology enhancements
• Identify and eliminate waste in data flows, reducing redundant processing and improving overall efficiency
• Evaluate, test, and adopt new tools, platforms, processes, and solutions aligned with modern data engineering best practices

Leadership & Mentorship

• Serve as a technical lead for complex or high-impact data initiatives
• Mentor and coach ETL Engineers, and collaborate on data architecture evolution
• Share knowledge through documentation, design artifacts, and technical guidance

Collaboration & Stakeholder Engagement

• Partner with business stakeholders to understand business requirements and translate into scalable data solutions
• Lead technical discussions to resolve ambiguous or competing data needs
• Communicate complex concepts clearly to technical and non-technical audiences
• Collaborate with data scientists, analysts, and BI engineers to adopt data products, and improve data usability and trust
• Act as a trusted advisor on data feasibility, trade-offs, risks, and prioritization

Security, Governance & Compliance

• Ensure data pipelines adhere to enterprise security, privacy, and governance standards
• Implement access controls, data protection measures, and compliance requirements
• Support data lineage, auditability, and metadata management initiatives

Senior ETL Engineer Skills & Qualifications:

• Advanced experience with SQL, relational databases, and data warehouse design
• Strong expertise with Microsoft Fabric and modern data platform concepts
• Proficiency in Python for ETL development, automation, and testing
• Deep understanding of data modeling, query optimization, and performance tuning
• Strong knowledge of DataOps, CI/CD, and automated testing for data platforms
• Experience designing and supporting production-grade, enterprise-scale pipelines
• Excellent verbal, written, and interpersonal communication skills
• Proven ability to lead multiple initiatives and influence without formal authority
  
  

Education & Experience

• 5+ years of experience in data engineering, BI development, or analytics engineering
• Bachelor’s degree in a technical or analytical discipline required

Work Perks:

• Fun & driven environment.
• Excellent medical, dental, and vision coverage, life, accidental death and dismemberment, accident, critical illness, and disability insurance, FSA healthcare, FSA dependent care, HAS with employer contribution, and generous 401k match.
• 10 paid floating corporate holidays, 1 paid volunteer day & 25 PTO days to start – accrue up to 28 over 3 years, 4 mental health days, and 5 bereavement days.
• Tuition reimbursement up to five thousand, two hundred fifty dollars annually or one thousand dollars towards professional certification annually.
• Opportunities for paid and discounted travel.
• Flexible work schedule providing on-site, remote, and virtual office opportunities.
• Encouraged participation in our Employee Resource Groups and Diversity, Equity, & Inclusion council.
• Fitness Center and café onsite at select locations.
• Employee Assistance Program (EAP)
• Paid Parental, Caregiver, and Disability leave.
• Team Member Discount Program.

Your mission

As a software engineer within Bitpanda’s Trade Hub, you will help design, build and scale the core systems that power our trading ecosystem end-to-end — from pricing, execution and portfolio lifecycle, to asset infrastructure, hedging and prime services. You will work on highly available, low-latency and financially critical back-end services that handle order flow, market data, risk, balances, assets and exposure management at scale. Your work will directly impact how customers trade, how liquidity is managed, how portfolios are valued, and how Bitpanda operates safely and efficiently across markets. You will collaborate closely with product, quantitative, risk and trading stakeholders to deliver resilient, high-performance systems that form the backbone of our trading platform.

As a bonus, you get work on new age tech projects, tackling architectural and conceptual challenges, integrating with 3rd party vendors and interface and collaborate with many other Engineers and teams within Bitpanda.

What you’ll do

• Design and develop scalable, resilient, message-driven services using Java
• Write clean and future proof code with 80% unit test test coverage, end to end and integration testing before deploying into event driven microservices architecture
• Optimise payment modules/services to ensure reliability, maintainability, performance and scalability using tools like 
• Drive innovation by researching and adopting the latest trends and technologies in backend development, ensuring our applications remain cutting-edge.

Who you are

• Knowledge and experience of software development using modern frameworks such as Spring Boot, with Java as your main programming language
• Understanding of relational and non-relational databases (bonus points for experience with Postgres and MongoDB)
• Experience creating and maintaining publicly available REST APIs with a keen understanding of performance optimisation and scalability
• Practical knowledge in using message-oriented middleware as we’re working with event driven microservices (ideally Apache Kafka or ZeroMQ)
• Understanding of CI/CD: familiarity with AWS and Kubernetes is ideal but any public cloud experience is fine

**We offer a comprehensive relocation package to support candidates who are moving to join our team. Our goal is to make your transition as smooth as possible, and we provide assistance throughout the whole process.

You Mission

As a Software Engineer in the Financial Crime Prevention (FCP) team at Bitpanda, you will build the systems that keep Bitpanda safe, secure, and compliant at scale. You’ll work on high-throughput, low-latency services that detect, prevent, and respond to suspicious activity across payments, trading, and user accounts. Your work will directly impact the integrity of our platform and protect millions of users from financial crime, fraud, and compliance risk.

What you'll do

• Design and operate scalable, event-driven backend services using Java 25, Micronaut/Spring, and Kafka to power real-time detection and prevention workflows
• Build and maintain core FCP systems, including transaction monitoring, risk scoring, alerting, and reporting pipelines
• Ensure production-grade reliability with ≥80% unit test coverage, integration and end-to-end tests, and leverage AI-assisted code review tools like Claude Code
• Integrate with internal and external systems, including payment providers, trading services, and compliance tools, handling edge cases and high-throughput data streams
• Continuously improve system performance, observability, and scalability while meeting strict compliance and regulatory requirements

Who you are

• Strong backend engineering experience with Java (Micronaut or Spring) and distributed systems fundamentals (consistency, messaging, failure modes, concurrency)
• Experience building systems where correctness, reliability, and low-latency decision-making are critical
• Skilled in testing strategies, ensuring correctness at scale, and leveraging tools like Claude Code for code quality and review efficiency
• Familiar with event-driven architectures, streaming platforms (Kafka), and cloud-native environments (AWS, Kubernetes)
• Motivated to solve complex financial crime problems and build infrastructure that protects users and the business at scale

Overview

Join us to work collaboratively with our talented team of dynamic and passionate engineers to deliver capabilities that enable our customers to make a difference. You'll deploy and operate ArcGIS Velocity and ArcGIS Workflow Manager SaaS solutions. You will also have the opportunity to design, deploy, and operate next-generation real-time and big data GIS software-as-a-service (SaaS) capabilities for thousands of cloud users worldwide.

Our teams have a broad mix of experience levels and tenures that support an environment which promotes professional development. We care about your career growth and strive to assign projects based on what will help each team member develop into a better-rounded engineer and enable them to take on more complex tasks in the future. Our team also puts a high value on work-life balance, and we understand that striking a healthy balance between your personal and professional life is crucial to your happiness and success here. We offer a flexible hybrid schedule so you can have a more productive and well-balanced life both in and outside of work.

The Professional Services division is the consulting and implementation arm of Esri. We break ground in new markets, push the technology envelope and ultimately deliver transformational solutions to high profile clients worldwide. The Professional Services organization is comprised of nearly 1,000 talented business and technical professionals who strive every day to help our users be successful. This product team works closely with solution delivery consultants to envision and then ‘make real’ the emerging requirements in industry, government, and other user communities.

Responsibilities

• Collaborate with a team of SRE engineers to operate SaaS capabilities across multiple regions on the cloud platform
• Design, implement, configure, and utilize monitoring systems to monitor the health of SaaS products
• Manage infrastructure used for ArcGIS Velocity and ArcGIS Workflow Manager, respond to alerts, and troubleshoot problems to resolution
• Develop, implement, and maintain automation solutions for repetitive operational tasks, such as deployment pipelines, incident resolution, and scaling processes
• Design and implement the deployment and upgrade containerized micro-service components that, when combined, power Esri’s SaaS offerings
• Create and automate Git workflows to simplify code integration, testing, and infrastructure deployments
• Participate in technical spike efforts, bringing new innovative ideas to future versions of our software
• Troubleshoot the system incidents and provide root cause analysis reports
• Provide rotational on-call technical support

Requirements

• 5+ years of experience managing Kubernetes (EKS), logging and monitoring (ELK, Prometheus), and container technologies (Docker, ECS)
• Proficient in using Terraform for automating infrastructure provisioning and management
• Ability to design and automate Git workflows for streamlined code integration, testing, and infrastructure deployment
• Ability to write scripts to deploy infrastructure and/or applications (Bash, Python, Terraform)
• High level of understanding and experience with cloud computing platforms (AWS)
• Strong knowledge of Linux Operating system administration, including troubleshooting, performance tuning, and shell scripting
• Proficient in cloud networking, including VPCs, subnets, security groups, and VPNs in platforms like AWS
• Skilled in identifying and resolving system and application issues through effective troubleshooting and root cause analysis
• Working knowledge of a source control and issue management system, preferably GitHub
• Working knowledge of authoring, deploying, and troubleshooting Java applications on AWS Lambda
• Bachelor’s degree in computer science, computer engineering, GIS, or information systems

Recommended Qualifications

• 5+ years of experience designing, administering, and/or maintaining cloud environments, such as AWS, supporting 24×7 high-availability production environments
• Interest in working with GitOps principles to automate the deployment of applications on Kubernetes clusters
• Certifications: AWS Certified Solution Architect Associate, CKA/CKAD or similar
• Experience managing OpenSearch (datastore or logstore), and Kafka for managing distributed data streams and ensuring high availability in large-scale systems
• Ability to work with continuous integration and delivery best practices
• Knowledge of operating resilient, highly available, scalable, and performance SaaS capabilities
• Knowledge of Esri ArcGIS or other web mapping technologies
• Master’s degree in computer science, computer engineering, GIS, or information systems

#LI-DR5

Your mission

As a senior engineer within Bitpanda’s Trade Hub, you will help design, build and scale the core systems that power our trading ecosystem end-to-end — from pricing, execution and portfolio lifecycle, to asset infrastructure, hedging and prime services. You will work on highly available, low-latency and financially critical back-end services that handle order flow, market data, risk, balances, assets and exposure management at scale. Your work will directly impact how customers trade, how liquidity is managed, how portfolios are valued, and how Bitpanda operates safely and efficiently across markets. You will collaborate closely with product, quantitative, risk and trading stakeholders to deliver resilient, high-performance systems that form the backbone of our trading platform.

What you’ll do

• Design and develop scalable, resilient, message-driven services using Java
• Write clean and future proof code with 80% unit test test coverage, end to end and integration testing before deploying into event driven microservices architecture
• Optimise payment modules/services to ensure reliability, maintainability, performance and scalability 
• Drive innovation by researching and adopting the latest trends and technologies in backend development, ensuring our applications remain cutting-edge
• Be a technical mentor for junior developers, providing guidance and support to help them grow and excel in their careers

Who you are

• Advanced knowledge and experience of software development using modern frameworks such as Spring Boot, with Java as your main programming language
• Good understanding of relational and non-relational databases (bonus points for experience with Postgres and MongoDB)
• Experience creating and maintaining publicly available REST APIs with a keen understanding of performance optimisation and scalability
• Practical knowledge in using message-oriented middleware as we’re working with event driven microservices (ideally Apache Kafka or ZeroMQ)
• Good understanding of CI/CD: familiarity with AWS and Kubernetes is ideal but any public cloud experience is fine

**We offer a comprehensive relocation package to support candidates who are moving to join our team. Our goal is to make your transition as smooth as possible, and we provide assistance throughout the whole process.