Linux Jobs in Lithuania.
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Senior Software Engineer - Infrastructure
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Why Cast AI?
Cast AI is an automation platform that operates cloud-native and AI infrastructure at scale. By embedding autonomous decision-making directly into Kubernetes and cloud environments, Cast AI continuously optimizes performance, reliability, and efficiency in production.
The old way doesn't work. As Kubernetes and AI environments grow, manual decisions don’t. Cast AI replaces tickets, alerts, and manual tuning with continuous automation that adapts infrastructure as conditions change. Efficiency and cost savings follow naturally from that automation.
Over 2,100 companies already rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS.
Global team, diverse perspectives
We're headquartered in Miami, but our impact is international. We take a global and intentional approach to diversity. Today, Cast AI operates across 34 countries spanning Europe, North America, Latin America, and APAC, bringing a wide range of perspectives into how we build and lead.
Unicorn momentum
In January 2026, we achieved unicorn status with a strategic investment from Pacific Alliance Ventures, the corporate venture arm of Shinsegae Group (a $50+ billion Korean conglomerate). Our valuation now exceeds $1 billion, and we're just getting started.
Join us as we build the future of autonomous infrastructure.
This is a location-specific opportunity. We are currently accepting applications from candidates residing in the following European countries: Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.
About the role
You'll join one of several teams building the low-level systems behind CAST AI's multi-cloud automation platform. The work sits at the intersection of Kubernetes, cloud infrastructure, and Linux.
Depending on your strengths, you'll work in one of these areas:
- Cluster and node lifecycle - custom node bootstrapping across AWS, GCP, and Azure. Controllers and operators managing full node lifecycle. Bridging the gap between autoscaler decisions and running VMs - including working around limitations of managed Kubernetes platforms like EKS, GKE, and AKS.
- Cross-cloud provisioning - orchestrating infrastructure across regions and clouds. Workflow orchestration, provisioning integrations, networking and identity across cloud boundaries.
- Live container migration - zero-downtime relocation of running containers using CRIU checkpoint/restore, custom CRI-O and runc forks, and forked cloud CNI plugins. Memory page transfer, TCP session migration, process-level checkpoint/restore. Kernel-level Linux engineering applied to Kubernetes.
- Storage optimization - dynamic volume rightsizing, BtrFS compression, custom CSI drivers. Full storage stack from cloud disk APIs through filesystem internals to Kubernetes PV/PVC lifecycle.
Common across all teams: Go, deep Kubernetes, multi-cloud, building beyond what the ecosystem offers.
How we build
We invest heavily in agentic development and AI-powered tooling. Engineers work with code agents and automated workflows daily. We expect you to shape how these tools evolve.
Requirements:
- Strong backend fundamentals and production-grade coding, preferably Go.
- Hands-on Kubernetes internals, cloud infrastructure, or large-scale distributed systems experience.
- Clear English communication, collaborative and self-directed.
- Bias toward action and ownership.
What would make you stand out
- Deep knowledge of EKS, GKE, or AKS internals.
- Low-level Linux experience: process internals, networking (NAT, iptables, conntrack, SDN), filesystems, storage.
- Kubernetes or cloud-native OSS contributions.
- Cloud storage depth - block storage, CSI, volume management, filesystem internals.
- Container runtime experience (CRI-O, runc, containerd) or CRIU.
- Experience with AI coding agents and agentic development workflows.
- Comfort building where there's no playbook.
Responsibilities:
- Design, build, and operate backend services, Kubernetes operators, and controllers in Go across AWS, GCP, and Azure.
- Solve infrastructure-layer problems — networking, scheduling, storage, compute, or container runtime internals.
- Build and maintain high-throughput services (gRPC/REST) and async orchestration workflows.
- Shape public and internal APIs.
- Leverage and improve AI-powered development workflows.
- Participate in design reviews, code reviews, on-call, and customer deep-dives.
What’s in it for you?
- Competitive salary (€6,500 - €9,000 gross, depending on the level of experience)
- Enjoy a flexible, remote-first global environment.
- Collaborate with a global team of cloud experts and innovators, passionate about pushing the boundaries of Kubernetes technology.
- Equity options.
- Get quick feedback with a fast-paced workflow. Most feature projects are completed in 1 to 4 weeks.
- Spend 10% of your work time on personal projects or self-improvement.
- Learning budget for professional and personal development - including access to international conferences and courses that elevate your skills.
- Annual hackathon to spark new ideas and strengthen team bonds.
- Team-building budget and company events to connect with your colleagues.
- Equipment budget to ensure you have everything you need.
- Extra days off to help maintain a healthy work-life balance.
Hiring process
- Screening call with Recruiter
- Hiring Manager interview
- Technical interview (system design)
- Live coding
- Culture Check interview with an executive
*As part of our standard hiring process, we would like to inform you that a background check may be conducted at the final stage of recruitment through our third-party provider, Checkr.
*Please note that Cast AI does not provide any form of visa sponsorship/work permit.
#LI-Remote
Ready to apply?
Apply to Cast AI
Senior Site Reliability Engineer (DevOps, Java)
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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.
Project Team
The project is a taxi ordering service and it contains the following components:
- Ride server (all data processing)
- Payment server (PCI DSS-compliant), which performs a transaction with the passenger's digital wallet and payment gateways
- Mobile application (hail taxi, geocoding, map, payments)
- Taxi terminal (3rd party)
The project integrates with 3rd party services, including PayPal, MasterPass, Stripe, and Twilio.
The team itself consists of 1 Team Lead, 1 UI Developers, 6 Back-End Developers, 9 Mobile Developers, 5 QA, 2 BA and 2 Designer.
What You’ll Do
- Design, build, and operate reliable, scalable distributed systems
- Improve system availability, performance, and resilience
- Automate infrastructure, deployments, and operational processes
- Diagnose and resolve production issues
- Lead upgrades and migrations with minimal or zero downtime
- Participate in on-call rotations and incident response
- Collaborate closely with development teams to improve operability
- Drive best practices around monitoring, alerting, and capacity planning
- Reduce operational toil through automation
- Contribute to incident management, post-mortems, disaster recovery strategies, and continuous reliability improvements
What You Bring
- 7+ years of experience, specializing in Kubernetes and AWS
- Strong programming skills in Java, with willingness to learn Ruby
- Solid understanding of concurrency, runtime behavior, and performance optimization
- Hands-on experience with Docker and containerized workloads
- Strong Kubernetes expertise (Deployments, StatefulSets, Services, Ingress, Helm, troubleshooting, autoscaling)
- Strong AWS experience (EC2, EKS, RDS, S3, IAM, VPC, Load Balancers, CloudWatch)
- Experience designing infrastructure for high availability and disaster recovery
- Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, Pulumi, or similar
- Experience with RabbitMQ or similar messaging systems (Kafka, SQS, Pulsar, etc.
- Strong understanding of relational databases (MySQL/PostgreSQL), including query optimization, replication, and failover strategies
- Familiarity with NoSQL and in-memory databases (Redis, DynamoDB, MongoDB)
- Experience with distributed systems, microservices, capacity planning, and fault tolerance
- Experience with monitoring and observability tools (Prometheus, Grafana, Datadog, ELK/OpenSearch, OpenTelemetry)
- Strong understanding of Linux systems and networking fundamentals (TCP/IP, DNS, HTTP/HTTPS, TLS, load balancing)
- Experience with SRE practices, including SLOs/SLIs/SLAs, load testing, resilience testing, and incident management
- Strong communication skills and ability to collaborate across engineering teams
- Calm and effective during incidents with an ownership mindset
Nice to Have
- Experience operating production systems written in Ruby, Java, or other major platforms
- Framework experience such as Ruby on Rails, Spring Boot, or similar
- Experience operating high-traffic SaaS platforms
- Cost optimization in cloud environments
- Chaos engineering practices
- Experience mentoring junior engineers
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.
Ready to apply?
Apply to Exadel Inc (Website)
Senior Site Reliability Engineer (DevOps, Java)
Share this job
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.
Project Team
The project is a taxi ordering service and it contains the following components:
- Ride server (all data processing)
- Payment server (PCI DSS-compliant), which performs a transaction with the passenger's digital wallet and payment gateways
- Mobile application (hail taxi, geocoding, map, payments)
- Taxi terminal (3rd party)
The project integrates with 3rd party services, including PayPal, MasterPass, Stripe, and Twilio.
The team itself consists of 1 Team Lead, 1 UI Developers, 6 Back-End Developers, 9 Mobile Developers, 5 QA, 2 BA and 2 Designer.
What You’ll Do
- Design, build, and operate reliable, scalable distributed systems
- Improve system availability, performance, and resilience
- Automate infrastructure, deployments, and operational processes
- Diagnose and resolve production issues
- Lead upgrades and migrations with minimal or zero downtime
- Participate in on-call rotations and incident response
- Collaborate closely with development teams to improve operability
- Drive best practices around monitoring, alerting, and capacity planning
- Reduce operational toil through automation
- Contribute to incident management, post-mortems, disaster recovery strategies, and continuous reliability improvements
What You Bring
- 7+ years of experience, specializing in Kubernetes and AWS
- Strong programming skills in Java, with willingness to learn Ruby
- Solid understanding of concurrency, runtime behavior, and performance optimization
- Hands-on experience with Docker and containerized workloads
- Strong Kubernetes expertise (Deployments, StatefulSets, Services, Ingress, Helm, troubleshooting, autoscaling)
- Strong AWS experience (EC2, EKS, RDS, S3, IAM, VPC, Load Balancers, CloudWatch)
- Experience designing infrastructure for high availability and disaster recovery
- Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, Pulumi, or similar
- Experience with RabbitMQ or similar messaging systems (Kafka, SQS, Pulsar, etc.
- Strong understanding of relational databases (MySQL/PostgreSQL), including query optimization, replication, and failover strategies
- Familiarity with NoSQL and in-memory databases (Redis, DynamoDB, MongoDB)
- Experience with distributed systems, microservices, capacity planning, and fault tolerance
- Experience with monitoring and observability tools (Prometheus, Grafana, Datadog, ELK/OpenSearch, OpenTelemetry)
- Strong understanding of Linux systems and networking fundamentals (TCP/IP, DNS, HTTP/HTTPS, TLS, load balancing)
- Experience with SRE practices, including SLOs/SLIs/SLAs, load testing, resilience testing, and incident management
- Strong communication skills and ability to collaborate across engineering teams
- Calm and effective during incidents with an ownership mindset
Nice to Have
- Experience operating production systems written in Ruby, Java, or other major platforms
- Framework experience such as Ruby on Rails, Spring Boot, or similar
- Experience operating high-traffic SaaS platforms
- Cost optimization in cloud environments
- Chaos engineering practices
- Experience mentoring junior engineers
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.
Ready to apply?
Apply to Exadel
Senior Site Reliability Engineer (DevOps, Java)
Share this job
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.
Project Team
The project is a taxi ordering service and it contains the following components:
- Ride server (all data processing)
- Payment server (PCI DSS-compliant), which performs a transaction with the passenger's digital wallet and payment gateways
- Mobile application (hail taxi, geocoding, map, payments)
- Taxi terminal (3rd party)
The project integrates with 3rd party services, including PayPal, MasterPass, Stripe, and Twilio.
The team itself consists of 1 Team Lead, 1 UI Developers, 6 Back-End Developers, 9 Mobile Developers, 5 QA, 2 BA and 2 Designer.
What You’ll Do
- Design, build, and operate reliable, scalable distributed systems
- Improve system availability, performance, and resilience
- Automate infrastructure, deployments, and operational processes
- Diagnose and resolve production issues
- Lead upgrades and migrations with minimal or zero downtime
- Participate in on-call rotations and incident response
- Collaborate closely with development teams to improve operability
- Drive best practices around monitoring, alerting, and capacity planning
- Reduce operational toil through automation
- Contribute to incident management, post-mortems, disaster recovery strategies, and continuous reliability improvements
What You Bring
- 7+ years of experience, specializing in Kubernetes and AWS
- Strong programming skills in Java, with willingness to learn Ruby
- Solid understanding of concurrency, runtime behavior, and performance optimization
- Hands-on experience with Docker and containerized workloads
- Strong Kubernetes expertise (Deployments, StatefulSets, Services, Ingress, Helm, troubleshooting, autoscaling)
- Strong AWS experience (EC2, EKS, RDS, S3, IAM, VPC, Load Balancers, CloudWatch)
- Experience designing infrastructure for high availability and disaster recovery
- Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, Pulumi, or similar
- Experience with RabbitMQ or similar messaging systems (Kafka, SQS, Pulsar, etc.
- Strong understanding of relational databases (MySQL/PostgreSQL), including query optimization, replication, and failover strategies
- Familiarity with NoSQL and in-memory databases (Redis, DynamoDB, MongoDB)
- Experience with distributed systems, microservices, capacity planning, and fault tolerance
- Experience with monitoring and observability tools (Prometheus, Grafana, Datadog, ELK/OpenSearch, OpenTelemetry)
- Strong understanding of Linux systems and networking fundamentals (TCP/IP, DNS, HTTP/HTTPS, TLS, load balancing)
- Experience with SRE practices, including SLOs/SLIs/SLAs, load testing, resilience testing, and incident management
- Strong communication skills and ability to collaborate across engineering teams
- Calm and effective during incidents with an ownership mindset
Nice to Have
- Experience operating production systems written in Ruby, Java, or other major platforms
- Framework experience such as Ruby on Rails, Spring Boot, or similar
- Experience operating high-traffic SaaS platforms
- Cost optimization in cloud environments
- Chaos engineering practices
- Experience mentoring junior engineers
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.
Ready to apply?
Apply to Exadel
Software Engineer, Data Infrastructure & Acquisition - Vilnius, Lithuania
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The mission of Speechify is to make sure that reading is never a barrier to learning.
Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.
Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.
Overview
We're looking to hire for our Data side of our AI team at Speechify. This role is responsible for all aspects of data collection to support our model training operations. We are able to build high-quality datasets at petabyte-scale and low cost through a tight integration of infrastructure, engineering, and research work. We are looking for a skilled Software Engineer to join us.
What You’ll Do
- Be scrappy to find new sources of audio data and bring it into our ingestion pipeline
- Operate and extend the cloud infrastructure for our ingestion pipeline, currently running on GCP and managed with Terraform.
- Collaborate closely with our Scientists to shift the cost/throughput/quality frontier, delivering richer data at bigger scale and lower cost to power our next-generation models.
- Collaborate with others on the AI Team and Speechify Leadership to craft the AI Team’s dataset roadmap to power Speechify’s next-generation consumer and enterprise products.
An Ideal Candidate Should Have
- BS/MS/PhD in Computer Science or a related field.
- 5+ years of industry experience in software development.
- Proficiency with bash/Python scripting in Linux environments
- Proficiency in Docker and Infrastructure-as-Code concepts and professional experience with at least one major Cloud Provider (we use GCP)
- Experience with web crawlers, large-scale data processing workflows is a plus
- Ability to handle multiple tasks and adapt to changing priorities.
- Strong communication skills, both written and verbal.
What we offer
- A fast-growing environment where you can help shape the company and product.
- An entrepreneurial-minded team that supports risk, intuition, and hustle.
- A hands-off management approach so you can focus and do your best work.
- An opportunity to make a big impact in a transformative industry.
- Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
- Opportunity to work on a life-changing product that millions of people use.
- Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
- Work in one of the fastest-growing sectors of tech, the intersection of artificial intelligence and audio.
Think you’re a good fit for this job?
Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.
Not looking but know someone who would make a great fit?
Refer them!
Speechify is committed to a diverse and inclusive workplace.
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.
Ready to apply?
Apply to Speechify
Infrastructure Engineer (Data)
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About Telnyx
Telnyx is an industry leader that's not just imagining the future of global connectivity—we're building it. From architecting and amplifying the reach of a private, global, multi-cloud IP network, to bringing hyperlocal edge technology right to your fingertips through intuitive APIs, we're shaping a new era of seamless interconnection between people, devices, and applications.
We're driven by a desire to transform and modernize what's antiquated, automate the manual, and solve real-world problems through innovative connectivity solutions. As a testament to our success, we're proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team.
Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us, you can be part of laying the foundations for this interconnected future. We're currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers.
The Role
Telnyx infrastructure team is building a next-generation platform that spans across multiple cloud providers and multiple continents. We leverage the Telnyx private backbone network with cross-connects to major cloud providers like AWS, Azure, GCP, and IBM Cloud to build a cloud-agnostic, highly available platform. With our lean team, we're currently running infrastructure in 10 PoPs and 3 continents.
In This Role You Will
- Design, develop, and deploy scalable solutions for managing databases like PostgreSQL, MySQL, Cassandra, Kafka, RabbitMQ, Redis, and others, both in virtualized environments and Kubernetes clusters.
- Collaborate with engineering to identify and resolve pain points in managing large-scale, high-availability database infrastructure.
- Lead the migration of existing database services from VMs to Kubernetes, ensuring minimal downtime and seamless transitions.
- Support disaster recovery, backup strategies, and performance tuning for on-premise database systems.
- Implement and manage observability, logging, and alerting systems.
Must-Have Experience:
- 3+ years of professional experience in infrastructure operations, especially in Linux-based systems.
- Expertise in at least one deployment and orchestration technology (Kubernetes, Ansible, or Terraform), with a focus on deploying and managing stateful applications
- Skills in scripting languages such as Bash, Python, or similar, to automate workflows and manage infrastructure.
- Hands-on experience managing at least one relational databases like PostgreSQL or MySQL
You’d Be A Good Fit If You Have
- Experience with non-relational databases such as Cassandra, OpenSearch, or other distributed data stores.
- Familiarity with streaming and messaging platforms like Kafka or RabbitMQ, including scaling and monitoring in a distributed setup.
- Proficiency in observability tools like Prometheus, Grafana, ELK stack, or others to ensure system performance and reliability.
Bonus Points For:
- Knowledge of service discovery tools like Consul, or similar technologies, would be a great advantage
Growth Opportunities:
- Act as a strength multiplier to product engineering efforts.
- Learn about every technology stack used at Telnyx.
- Work at the intersection of the social and the technical, with growth opportunities in both.
#LI-KG1
#LI-REMOTE
Ready to apply?
Apply to Telnyx