June 2, 2026
Java SRE Engineer
Senior • Hybrid
900 - 1,100 PLN
Warsaw, Poland
🚀 Java SRE Engineer
📍 Hybrid | 2 days from the office in Warsaw
Are you passionate about reliability, automation, cloud technologies, and building resilient systems at scale? We're looking for a Java SRE Engineer to join our growing team and help ensure the stability, security, and performance of mission-critical applications within the fintech and payments domain.
As part of our engineering organization, you'll combine software engineering expertise with Site Reliability Engineering practices to improve platform reliability, automate operations, and drive operational excellence. You'll also leverage modern AI-powered tools to enhance troubleshooting, automation, and engineering productivity.
💡 Your Mission
⚙️ Site Reliability Engineering
Ensure the availability, reliability, scalability, and performance of critical production systems.
Design and implement monitoring, alerting, and observability solutions.
Manage incident response, root cause analysis, and post-mortem activities.
Establish and monitor Service Level Indicators (SLIs), Service Level Objectives (SLOs), and Service Level Agreements (SLAs).
Drive reliability improvements through automation and engineering best practices.
☕ Software Engineering
Develop and maintain automation tools and platform services using Java.
Improve system resilience, performance, and operational efficiency.
Collaborate with development teams to build highly reliable applications.
Support production environments and participate in on-call rotations when required.
☁️ Cloud & Infrastructure
Design and maintain cloud-native infrastructure.
Manage containerized environments using Docker and Kubernetes.
Implement Infrastructure as Code (IaC) practices.
Optimize platform scalability, security, and cost efficiency.
🤖 AI-Powered Engineering
Utilize tools such as GitHub Copilot, ChatGPT, Claude, and Cline to improve automation and operational efficiency.
Explore AI-driven approaches to incident management, monitoring, and system optimization.
Promote best practices for AI adoption within engineering teams.
🔐 Security & Compliance
Support implementation of security controls and operational best practices.
Assist with compliance requirements and operational audits.
Ensure secure handling of sensitive financial and customer data.
🤝 Collaboration
Partner closely with Software Engineers, DevOps Engineers, Security Teams, and Product Owners.
Participate in Agile ceremonies and reliability planning sessions.
Contribute to technical documentation and knowledge-sharing initiatives.
🎯 Must-Have Skills
Backend & Automation
✔️ 5+ years of experience in Java development or Site Reliability Engineering
✔️ Strong knowledge of:
Java
Spring Boot
REST APIs
Microservices architecture
SRE & Operations
✔️ Experience managing production systems in high-availability environments
✔️ Strong understanding of:
Monitoring and observability
Incident management
Root cause analysis
Performance tuning
Reliability engineering principles
✔️ Experience with:
Prometheus
Grafana
ELK Stack or OpenSearch
Splunk (nice to have)
Cloud & Containers
✔️ Hands-on experience with:
Kubernetes
Docker
✔️ Experience with cloud platforms:
AWS
Azure
GCP
CI/CD & Automation
✔️ Jenkins
✔️ CI/CD pipeline development and maintenance
✔️ Infrastructure automation and scripting
Databases
✔️ Experience with:
PostgreSQL
MySQL
Oracle
⭐ Nice to Have
Experience with Terraform, Ansible, or Infrastructure as Code tools
Experience supporting fintech or payment platforms
Knowledge of Linux system administration
Experience with distributed systems and event-driven architectures
Open-source contributions
Technical blogging or community involvement
💳 FinTech & Payments Experience
2+ years of experience in fintech, payments, or financial services
Knowledge of PCI DSS requirements
Familiarity with payment processing systems and financial transaction platforms
Understanding of security and compliance standards within regulated industries
🎁 What You'll Get
✨ Opportunity to work on large-scale, business-critical systems
✨ Modern cloud-native technology stack
✨ Exposure to AI-powered engineering and automation tools
✨ Hybrid work model (Gdańsk or Warsaw)
✨ Collaborative engineering culture focused on innovation and reliability
✨ Influence on platform architecture and operational excellence
✨ Continuous learning and career development opportunities
🚀 Ready to build reliable, scalable systems that power the future of fintech?
Join us and help create highly available platforms where engineering excellence, automation, and innovation come first.
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This role emphasizes hands-on engineering work, automation, and operational excellence. The Senior Software Engineer will work closely with other engineers to ensure systems are highly available, observable, and resilient. As a member of the engineering team, the Senior Software Engineer will work closely with Infrastructure, Engineering, and Product teams to develop highly resilient, observable, and automated solutions that enhance system availability and efficiency. The ideal candidate will bring deep technical expertise, strong problem-solving skills, and a passion for reliability engineering. Job Description and Requirements Job Responsibilities Implement, and advocate for best-in-class reliability, observability, and scalability practices across the platform. Develop automated solutions for system reliability, capacity planning, and incident response to minimize manual intervention. Participate in improving Service Level Objectives (SLOs), Service Level Indicators (SLIs), and error budgets to enhance system reliability. Contribute to CI/CD pipeline improvements and DevOps practices. Support root cause analysis (RCA) investigations, drive corrective actions, and advocate for a blameless postmortem culture. Participate in on-call rotations to ensure 24/7 availability of critical systems. Influence and mentor engineering teams on SRE principles, DevOps culture, and best practices. Stay ahead of industry trends, adopting new tools, frameworks, and methodologies to continually improve system reliability. Preferred Qualifications 5+ years of experience in software engineering, site reliability engineering, or cloud infrastructure roles. Experience with DevOps tooling and practices. Proficient in building service-oriented architectures and cloud-native distributed systems. Proficiency in programming languages such as Python, Go, Java, or C# or .Net. In-depth technical understanding and experience with at least two of the following DevOps platforms: GitHub, Azure DevOps, GitLab, or Jenkins. Hands-on experience with observability tools (e.g., Prometheus, Grafana, OpenTelemetry or others). Strong background in CI/CD pipelines, automation, and DevOps practices. Experience working in global, high-availability SaaS environments. Experience implementing redundancy and disaster recovery scenarios. Excellent teamwork and cross-group collaboration skills. Ability to collaborate with both technical and business professionals. Hands-on experience with Agile Project Development Methodologies. Experience delivering complex technical solutions. Excellent problem-solving, analytical, and communication skills. Nice to have: Experience with Chaos Engineering and/or AI Ops . Competencies and Skills Automation-First Mindset – Commitment to reducing toil through scripting and automation. Reliability Engineering – Expertise in SLOs, SLIs, error budgets, and high-availability architectures. Incident Management & Postmortems – Experience in handling production incidents and driving continuous improvement. Observability & Monitoring – Deep understanding of logging, monitoring, and alerting best practices. Practical knowledge of data structures and modern data engines. Collaboration & Communication – Ability to work across teams, influence stakeholders, and advocate for reliability improvements. Mentorship & Coaching – Passion for mentoring engineers and building an SRE culture within the organization. Additional Information This role offers a unique opportunity to shape the future of SRE in a cutting-edge SaaS company, ensuring the reliability and scalability of mission-critical applications for customers worldwide. If you are passionate about solving complex reliability challenges and driving technical excellence, we’d love to hear from you! Relativity is a diverse workplace with different skills and life experiences—and we love and celebrate those differences. We believe that employees are happiest when they're empowered to be their full, authentic selves, regardless how you identify. Benefit Highlights: Comprehensive health, dental, and vision plans Parental leave for primary and secondary caregivers Flexible work arrangements Two, week-long company breaks per year Additional time off Long-term incentive program Training investment program All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. Relativity is committed to competitive, fair, and equitable compensation practices. This position is eligible for total compensation which includes a competitive base salary, an annual performance bonus, and long-term incentives. The expected salary range for this role is between following values: 208 000 and 312 000PLN The final offered salary will be based on several factors, including but not limited to the candidate's depth of experience, skill set, qualifications, and internal pay equity. Hiring at the top end of the range would not be typical, to allow for future meaningful salary growth in this position. Required Skills: Automation, Data Analysis, Database Management, Network Architecture, Performance Optimizations, Problem Solving, Project Management, Software Development, System Designs, Technical Leadership
Technology
Caspian One
Site Reliability Engineer
Senior
Hybrid
Krakow, Poland
1,400 - 1,800 PLN
🏢 Summary: Hands-on Site Reliability Engineer role focused on ensuring stability, scalability, and observability of a mission-critical distributed risk and analytics platform in hybrid cloud environments. The position centers on production reliability, incident response, automation, and continuous improvement of monitoring and deployment processes. You will collaborate with engineering teams to strengthen system resilience, performance, and operational standards. 🗂️ Requirements: Strong Java experience in distributed systems, Experience with observability and monitoring tools, Hands-on experience with hybrid cloud environments (preferably GCP), Experience with CI/CD pipelines and automation tools, Solid knowledge of Linux systems administration, Understanding of RDBMS fundamentals, Experience with job schedulers (e.g., Control-M), Ability to lead incident response and root-cause analysis 📃 Skills: Java, Grafana, Prometheus, Loki, OpenTelemetry, GCP, Jenkins, Ansible, Linux, SQL, Control-M, CI/CD 🏢 Description: We’re looking for a seasoned Site Reliability Engineer to support a high‑performance, mission‑critical risk and analytics platform used across global trading and finance environments. You’ll play a key role in ensuring the stability, scalability, and observability of complex distributed systems running across hybrid cloud infrastructure. In this role, you’ll take ownership of production reliability driving incident response, conducting root‑cause analysis, improving monitoring capabilities, and delivering automation that reduces operational toil. You’ll work closely with development teams, platform engineers, and service management leads to strengthen resilience, refine processes, and enhance the engineering culture around availability and performance. This is a hands on technical position suited to someone who thrives in high‑throughput environments, communicates clearly, and enjoys solving deep engineering problems in real time. Core Responsibilities Maintain and improve the reliability, uptime, and performance of distributed applications. Lead incident response, triage complex issues, coordinate recoveries, and deliver structured post‑incident reviews. Enhance observability—designing and evolving monitoring, alerting, logging, and tracing frameworks. Drive continuous improvement across automation, deployment processes, and service stability. Collaborate with cross‑functional teams to influence architecture, design, and operational standards. Support CI/CD pipelines, environment configuration, and vulnerability remediation. Contribute to a knowledge‑driven culture through documentation, tooling, and best‑practice adoption. Required Skills & Experience Strong Java background with proven experience supporting or developing distributed systems. Observability tooling expertise (Grafana, Prometheus, Loki, OpenTelemetry or similar). Hands‑on with hybrid cloud environments , ideally with GCP or another major cloud provider. CI/CD and automation experience (e.g., Jenkins, Ansible). Solid understanding of Linux , RDBMS fundamentals , and job schedulers (e.g., Control‑M or equivalents). Strong analytical mindset with a methodical approach to troubleshooting. Excellent communication skills and comfort working in Agile teams.
Technology

Relativity
Senior Engineer - Site Reliability Engineering
Senior
Remote
Krakow, Poland
208,000 - 312,000 PLN/yr
🏢 Summary: Senior Software Engineer – SRE role focused on building and maintaining highly available, observable, and resilient cloud-native systems. The position emphasizes automation, CI/CD improvements, incident management, and implementation of reliability best practices across a SaaS platform. You will collaborate cross-functionally to enhance scalability, performance, and operational excellence. 🗂️ Requirements: 5+ years in Software Engineering, SRE, or Cloud Infrastructure, Experience with DevOps tools and practices, Proficiency in Python, Go, Java, or C#/.NET, Experience with at least two: GitHub, Azure DevOps, GitLab, Jenkins, Hands-on experience with observability tools, Strong experience with CI/CD pipelines and automation, Experience with cloud-native distributed systems, Experience in high-availability SaaS environments, Knowledge of SLOs, SLIs, and error budgets, Experience with incident management and root cause analysis, Experience implementing redundancy and disaster recovery, Experience with Agile methodologies 📃 Skills: Python, Go, Java, C#, DotNet, GitHub, Azure, GitLab, Jenkins, Prometheus, Grafana, OpenTelemetry, CI/CD, DevOps, SLO, SLI, SaaS, Automation, Cloud, DistributedSystems 🏢 Description: Job Overview As the Senior Software Engineer – SRE you will focus on implementing and maintaining reliability solutions across the platform. This role emphasizes hands-on engineering work, automation, and operational excellence. The Senior Software Engineer will work closely with other engineers to ensure systems are highly available, observable, and resilient. As a member of the engineering team, the Senior Software Engineer will work closely with Infrastructure, Engineering, and Product teams to develop highly resilient, observable, and automated solutions that enhance system availability and efficiency. The ideal candidate will bring deep technical expertise, strong problem-solving skills, and a passion for reliability engineering. Job Description and Requirements Job Responsibilities Implement, and advocate for best-in-class reliability, observability, and scalability practices across the platform. Develop automated solutions for system reliability, capacity planning, and incident response to minimize manual intervention. Participate in improving Service Level Objectives (SLOs), Service Level Indicators (SLIs), and error budgets to enhance system reliability. Contribute to CI/CD pipeline improvements and DevOps practices. Support root cause analysis (RCA) investigations, drive corrective actions, and advocate for a blameless postmortem culture. Participate in on-call rotations to ensure 24/7 availability of critical systems. Influence and mentor engineering teams on SRE principles, DevOps culture, and best practices. Stay ahead of industry trends, adopting new tools, frameworks, and methodologies to continually improve system reliability. Preferred Qualifications 5+ years of experience in software engineering, site reliability engineering, or cloud infrastructure roles. Experience with DevOps tooling and practices. Proficient in building service-oriented architectures and cloud-native distributed systems. Proficiency in programming languages such as Python, Go, Java, or C# or .Net. In-depth technical understanding and experience with at least two of the following DevOps platforms: GitHub, Azure DevOps, GitLab, or Jenkins. Hands-on experience with observability tools (e.g., Prometheus, Grafana, OpenTelemetry or others). Strong background in CI/CD pipelines, automation, and DevOps practices. Experience working in global, high-availability SaaS environments. Experience implementing redundancy and disaster recovery scenarios. Excellent teamwork and cross-group collaboration skills. Ability to collaborate with both technical and business professionals. Hands-on experience with Agile Project Development Methodologies. Experience delivering complex technical solutions. Excellent problem-solving, analytical, and communication skills. Nice to have: Experience with Chaos Engineering and/or AI Ops . Competencies and Skills Automation-First Mindset – Commitment to reducing toil through scripting and automation. Reliability Engineering – Expertise in SLOs, SLIs, error budgets, and high-availability architectures. Incident Management & Postmortems – Experience in handling production incidents and driving continuous improvement. Observability & Monitoring – Deep understanding of logging, monitoring, and alerting best practices. Practical knowledge of data structures and modern data engines. Collaboration & Communication – Ability to work across teams, influence stakeholders, and advocate for reliability improvements. Mentorship & Coaching – Passion for mentoring engineers and building an SRE culture within the organization. Additional Information This role offers a unique opportunity to shape the future of SRE in a cutting-edge SaaS company, ensuring the reliability and scalability of mission-critical applications for customers worldwide. If you are passionate about solving complex reliability challenges and driving technical excellence, we’d love to hear from you! Relativity is a diverse workplace with different skills and life experiences—and we love and celebrate those differences. We believe that employees are happiest when they're empowered to be their full, authentic selves, regardless how you identify. Benefit Highlights: Comprehensive health, dental, and vision plans Parental leave for primary and secondary caregivers Flexible work arrangements Two, week-long company breaks per year Additional time off Long-term incentive program Training investment program All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. Relativity is committed to competitive, fair, and equitable compensation practices. This position is eligible for total compensation which includes a competitive base salary, an annual performance bonus, and long-term incentives. The expected salary range for this role is between following values: 208 000 and 312 000PLN The final offered salary will be based on several factors, including but not limited to the candidate's depth of experience, skill set, qualifications, and internal pay equity. Hiring at the top end of the range would not be typical, to allow for future meaningful salary growth in this position. Required Skills: Automation, Data Analysis, Database Management, Network Architecture, Performance Optimizations, Problem Solving, Project Management, Software Development, System Designs, Technical Leadership
Technology
ITDS
Senior Java Software Development Engineer – Digital Servicing
Senior
Hybrid
Krakow, Poland
27,720 - 33,600 PLN
🏢 Summary: Senior Java Software Development Engineer role focused on building secure, resilient digital servicing solutions at enterprise scale within a global engineering team. The position involves developing reactive microservices, improving cyber resilience, reducing technical debt, and supporting CI/CD-driven delivery using modern Java and cloud technologies. Hybrid work model based in Krakow with international collaboration. 🗂️ Requirements: 5+ years of experience with Java (Java 11+), Strong experience with Maven, Strong experience with Spring ecosystem (Spring Boot, Security, Integration, Batch, WebFlux, Data), Hands-on experience with reactive microservices, Experience with JDBC, Proficiency with RESTful APIs, Working knowledge of SQL and Hibernate, Experience with Oracle and/or PostgreSQL, Experience with Docker and Kubernetes, Experience with AWS, Familiarity with CI/CD pipelines and Jenkins, Experience with Git, Communicative English, Legal right to work in Europe 📃 Skills: Java, Maven, Spring, SpringBoot, SpringSecurity, SpringIntegration, SpringBatch, WebFlux, SpringData, JDBC, REST, SOAP, SQL, Hibernate, Oracle, PostgreSQL, Docker, Kubernetes, AWS, Jenkins, Git, MongoDB 🏢 Description: Build resilient digital services at enterprise scale—turn secure engineering into measurable operational impact. Location & work model Krakow-based role with a hybrid work model (up to 3 remote days per week) As a Senior Java Software Development Engineer – Digital Servicing , you will be working for our client’s dynamic global Digital Servicing engineering team based in Krakow, collaborating daily with colleagues across Poland, the UK, China, and Hong Kong. You’ll help develop and maintain secure, reliable software that improves cyber resilience, reduces vulnerabilities, and supports continuous engineering delivery through automation and modern tooling. Your main responsibilities: Develop, maintain, and enhance efficient, reusable, secure, and reliable code in line with approved design and coding standards. Resolve technical debt to strengthen code quality, reliability, and maintainability across services. Improve cyber security by reducing software vulnerabilities and supporting stronger operational resilience. Innovate and introduce new technologies and toolings that automate and optimize engineering deliverables. Collaborate with global team members across multiple locations to deliver improvements and ensure alignment on engineering practices. Build and evolve reactive microservices using modern Java and framework capabilities to support scalable digital servicing. Ensure thorough unit testing and reliable integration through disciplined development and API-driven service design. You're ideal for this role if you have: 5+ years of experience with Java (Java 11 onwards). Strong experience with Maven and Spring ecosystem (including Spring Boot, Security, Integration, Batch, WebFlux, and Data). Hands-on experience with reactive microservices and development using JDBC. Proficiency with RESTful APIs, and familiarity with SOAP-based services as well. Working knowledge of SQL and Hibernate for relational data access, plus experience with Oracle and/or PostgreSQL. Experience with Docker, Kubernetes, and AWS. Familiarity with CI/CD pipelines and tools such as Jenkins and Git. Comfort working in an agile, global environment, with communicative English for daily collaboration. It is a strong plus if you have: (optional) Experience with non-relational databases such as MongoDB. Language Required for the role : Communicative English Eligibility for the role : Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.