Mid-Level Site Reliability Engineer / DevOps - 6 Month Contract

margo-groupWarsaw

On-site Contract

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Experience Level

Mid to Senior

Qualifications

What We Expect: - Proven experience in designing CI/CD pipelines for multiple projects.- Strong knowledge of Kubernetes and containerization technologies.- Hands-on experience with automation using Python or Bash scripting.- Ability to troubleshoot systems beyond the pipeline level.- Excellent communication skills to articulate technical concepts effectively to teams.

About the job

Key Responsibilities:

- Design and implement robust CI/CD architectures.

- Standardize deployment processes and pipelines across teams.

- Enhance our Kubernetes platform through improved deployment patterns and automation.

- Develop tools to automate developer processes using Python.

- Create effective artifact repository structures and versioning strategies.

- Lead or co-lead SCM and CI/CD migrations.

- Collaborate closely with development teams as a trusted technical partner.

About margo-group

At margo-group, we are dedicated to fostering a collaborative environment that drives innovation and excellence in software development. Our focus on continuous improvement and agile methodologies helps us to deliver top-notch solutions to our clients.

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Senior Site Reliability Engineer (SRE) / DevOps Specialist

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Join our dynamic team at Margo Group as a Senior Site Reliability Engineer (SRE) / DevOps Specialist. In this pivotal role, you will be instrumental in enhancing our developer platform and establishing robust CI/CD standards across various teams. We seek an innovative thinker who thrives on designing solutions rather than merely maintaining them.Your Respons…

Feb 27, 2026

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thedotcollective

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About The Dot CollectiveWe are a forward-thinking consultancy operating across the UK and EU, driven by engineering excellence and a commitment to empowering individuals to create meaningful impact.We utilize cutting-edge technology stacks and adhere to agile scrum methodologies for all our projects.About YouAre you driven by data and its ability to transform? Do you seek to make a significant impact in a short timeframe? If so, you might be the perfect fit for us.Your Key Skills and Capabilities:In-depth understanding of the Networking stack and its application within Cloud EnvironmentsProficient in minimizing toil through re-architecting or developing Python toolsCollaborate effectively with delivery teams to ensure reliable production servicesCreate observability solutions aligned with SLAs and SLOs, maintaining a clear error budgetSupport production systems by conducting root cause analysis and facilitating post-mortemsAssess architectural designs to enhance production stabilityOur Promise to YouWe prioritize your humanity and well-being, offering well-designed co-working spaces, flexible remote work arrangements, parental leave, sabbaticals, and opportunities to work on personal projects.We believe a cohesive team is invaluable, and we strive to maintain stable teams across projects, ensuring you work with trusted colleagues.We are committed to prioritizing your needs and well-being in all aspects of our work culture.

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Senior DevOps/SRE Engineer

Capital

Full-time|On-site|Warsaw, Mazowieckie, Poland

Join our team as a Senior DevOps/SRE Engineer, where you'll play a critical role in enhancing our infrastructure and ensuring a seamless deployment process. You will collaborate with development and operations teams to automate and optimize our systems, ensuring high availability and performance.

Mar 15, 2026

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Senior Site Reliability Engineer - Observability Specialist | NordVPN

Nord Security

Full-time|On-site|Warsaw

Join the forefront of digital security with the world’s most advanced VPN.Are you a proactive problem-solver with a passion for technology? Become part of the innovative team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN available—tools designed to empower individuals with privacy, security, and control over their online presence.Your contribution? Enabling millions to reclaim their online security, privacy, and data.NordVPN operates a global edge infrastructure serving millions of users. This role is crucial for maintaining real-time awareness across that infrastructure, ensuring clarity amidst complexity.We are in search of a Senior Site Reliability Engineer (SRE) with a specialization in observability. You will design and enhance monitoring systems, boost signal quality, minimize alert fatigue, and collaborate with data teams on anomaly detection. You will be instrumental in shaping our understanding of the health and performance of our distributed systems.Main ResponsibilitiesArchitect, develop, and refine monitoring pipelines and observability tools for our globally distributed infrastructure.Establish and execute service-level monitoring based on critical metrics (latency, traffic, errors, saturation).Diminish alert fatigue by creating meaningful and actionable alerts that engineers can rely on.Design and maintain custom exporters, scripts, and integrations for efficient metrics and log collection.Partner with the data team to enhance anomaly detection and data-informed operational insights.Grasp service signals—determine what to measure, why it matters, and interpret the results accurately.Core RequirementsExpertise in distributed systems observability including monitoring architecture, signal design, and dashboarding.Proficient in golden signal methodology—design monitoring with a focus on critical metrics rather than ease of measurement.Experience in alert design—reducing noise, crafting actionable alerts, and managing on-call responsibilities.Proficient in Python for scripting, custom exporter development, automation, and data processing.Solid background in Linux administration and debugging.

Apr 12, 2026

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Site Reliability Engineer (DevOps) at ShiftKey | Warsaw

ShiftKey

Full-time|PLN 17K/mo - PLN 21K/mo|Hybrid|Warsaw

About ShiftKey ShiftKey connects licensed healthcare professionals with facilities that need their skills. The platform helps address staffing shortages across the United States, while giving healthcare workers more control over their schedules. Learn more at www.ShiftKey.com. Role Overview: Site Reliability Engineer (DevOps) As a Site Reliability Engineer at ShiftKey in Warsaw, the main focus is keeping the Marketplace platform stable, secure, and highly available. This role works closely with engineering teams to prevent incidents, maintain low downtime, and support a major migration to a new AWS region for better performance and reliability. The position blends hands-on maintenance, like reducing technical debt, improving deployment processes, and strengthening observability, with engineering projects that simplify operations over time. ShiftKey follows a 'you build it, you run it' approach, but thanks to a follow-the-sun support model, evenings remain free from on-call interruptions. Compensation The gross monthly salary for this role ranges from PLN 17,000 to PLN 21,000, depending on experience and expertise. Work Location This is primarily a remote position based in Warsaw. Team members gather in the office on Tuesdays and Wednesdays to collaborate and strengthen team culture. What You Will Do Split time between maintaining system reliability and developing automation and tooling. Contribute to major projects, including migrating infrastructure to a new AWS region to improve service availability and manage costs. Participate in the 'Sheriff' rotation about once a month during standard office hours.

Apr 14, 2026

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Site Reliability Engineer at altersolutions | Warsaw

altersolutions

Full-time|On-site|Warsaw

We are seeking pragmatic and self-sufficient Site Reliability Engineers (SREs) who possess a strong foundation in software engineering principles and know how to leverage them to tackle complex infrastructure challenges. The ideal candidate will automate processes first, grasp the broader context, and collaborate effectively with developers to boost velocity without compromising stability or security.This role focuses on innovation and problem-solving rather than merely following runbooks. We value individuals who can:Create and implement tailored solutions when existing tools fall short.Evaluate systems critically with a focus on scalability and resilience.Engage with cross-functional teams, including developers and product managers.Have the potential to advance into Developer Experience (DevEx) roles in the future.

Sep 17, 2025

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Site Reliability Engineer at ShiftKey | Warsaw

ShiftKey

Full-time|PLN 17K/mo - PLN 21K/mo|Hybrid|Warsaw

About ShiftKey ShiftKey connects licensed and certified healthcare professionals with facilities that need their skills. By using marketplace principles and industry knowledge, ShiftKey addresses staffing shortages across the American healthcare system. The platform gives healthcare workers the freedom to choose their shifts, helping more people return to the workforce. Learn more at www.ShiftKey.com. Role Overview: Site Reliability Engineer The Site Reliability Engineer will focus on keeping ShiftKey’s Marketplace platform stable, secure, and highly available. This role works closely with engineering teams to prevent incidents before they start. In 2025, the platform experienced just 6 minutes of downtime, maintaining and improving this reliability is a key part of the job, especially as the team migrates to a new AWS region. Day-to-day work balances routine platform maintenance, tackling technical debt, improving deployment processes, and boosting observability. There’s also a strong emphasis on engineering and automation to streamline operations over time. This is not a ticket-pushing role. ShiftKey’s culture encourages ownership: “you build it, you run it.” The company supports a healthy work-life balance, with a follow-the-sun model and no on-call duties after 5:00 PM Warsaw time, thanks to support from US-based colleagues. Monthly compensation ranges from PLN 17,000 to PLN 21,000, depending on experience and skills. Work Environment This position is primarily remote for candidates based in or near Warsaw. Team members are expected to work from the office on Tuesdays and Wednesdays to build team connections and company culture. Key Responsibilities Split time between operational maintenance and development projects that improve automation and tooling. Contribute to major roadmap projects, such as migrating infrastructure to a new AWS region to improve cost efficiency and availability. Participate in the "Sheriff" rotation about one week per month during standard office hours.

Apr 14, 2026

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Site Reliability Engineer at ShiftKey | Warsaw

ShiftKey

Full-time|PLN 17K/mo - PLN 21K/mo|Hybrid|Warsaw

About ShiftKey ShiftKey connects healthcare facilities with licensed professionals, helping to address staffing shortages across the United States. The platform enables healthcare workers to select their own shifts, bringing more qualified professionals into the system and supporting direct facility-worker connections. Learn more at www.ShiftKey.com. Role Overview: Site Reliability Engineer This Site Reliability Engineer position focuses on keeping ShiftKey’s Marketplace platform stable, secure, and highly available. The role involves close collaboration with engineering teams to prevent incidents and maintain a high uptime standard, targeting only 6 minutes of downtime in 2025. A major focus for the coming year will be supporting the migration to a new AWS region. The work is split evenly between hands-on maintenance (reducing technical debt, improving deployment processes) and engineering tasks that automate and streamline platform operations. The team follows a 'you build it, you run it' approach, but avoids burnout by limiting on-call duties. Thanks to a follow-the-sun support model with US-based colleagues, no on-call shifts are scheduled after 5:00 PM Warsaw time. Gross monthly salary: PLN 17,000 to PLN 21,000 under an employment contract (CoE/umowa o pracę). Final offer depends on experience and skills. Location and Work Arrangement Candidates should be based in or near Warsaw. The role is primarily remote, but in-person collaboration is encouraged on Tuesdays and Wednesdays to strengthen team connections and company culture. Main Responsibilities Split time evenly between maintenance/support and development work, including automation and tooling improvements. Contribute to roadmap projects, such as migrating infrastructure to a new AWS region for better cost efficiency and availability. Participate in the 'Sheriff' rotation (about once a month during office hours) to help ensure platform reliability.

Apr 14, 2026

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Staff Site Reliability Engineer - Platform Engineering | NordVPN

Nord Security

Full-time|On-site|Warsaw

Join the forefront of online privacy with the world’s most advanced VPN.Are you a proactive problem-solver who thrives in dynamic environments? Become a vital member of the team that developed Threat Protection Pro, the NordLynx protocol, and the fastest VPN worldwide—innovations that empower individuals with privacy, security, and control over their digital lives.Your Contribution: Enable millions to regain their online security, privacy, and data management.At NordVPN, we safeguard millions of users every day through an expansive global edge infrastructure comprising thousands of servers across numerous countries. The platform engineering team is responsible for building and maintaining the internal backend services that facilitate this protection.We are seeking a Staff Site Reliability Engineer (SRE) to design, build, and enhance these critical systems. This role demands a high level of ownership—you will architect solutions and deploy them to production. Colleagues will depend on you when it comes to rethinking architecture or scaling services from inception to global deployment.Key ResponsibilitiesDesign and manage on-demand, globally distributed backend services.Make strategic architectural decisions regarding the integration and scalability of internal services.Oversee the entire lifecycle: planning, implementation, monitoring, incident response, and postmortems.Enhance infrastructure tooling and automation processes.Contribute to our engineering standards, documentation, and operational maturity.Assess and incorporate AI tools (including LLMs, Claude Code, and model integrations) into engineering workflows.Essential QualificationsExperience in designing and operating globally distributed systems.Proficiency in systems architecture, service communication, data flow, and resilience patterns.Extensive Linux administration experience at scale (including systemd, kernel tuning, and debugging production systems).Expertise in Docker—building, shipping, and running containers in production environments.Familiarity with databases such as PostgreSQL, MySQL, Redis, OpenSearch, and VictoriaMetrics.Experience with web servers, load balancing, and failover mechanisms (e.g., Nginx, HAProxy).

Apr 12, 2026

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Site Reliability Engineer at ShiftKey | Warsaw

ShiftKey

Full-time|PLN 204K/yr - PLN 252K/yr|Hybrid|Warsaw

About ShiftKey ShiftKey connects licensed and certified healthcare professionals with facilities that need staffing support. The platform helps address staffing shortages in the U.S. healthcare system, giving healthcare workers more control over their schedules and encouraging skilled professionals to re-enter the workforce. Learn more at www.ShiftKey.com. Role Overview: Site Reliability Engineer Site Reliability Engineers at ShiftKey focus on keeping the Marketplace platform stable, secure, and highly available. In 2025, the platform recorded only 6 minutes of downtime, and maintaining this level of reliability is a key responsibility. The role also involves managing a migration to a new AWS region. This position blends hands-on maintenance, such as reducing technical debt, improving deployments, and strengthening observability, with engineering and automation projects aimed at streamlining operations. The team culture is “you build it, you run it,” giving engineers ownership of their work without risking burnout. Collaboration with U.S.-based teams supports a follow-the-sun approach, so there are no on-call duties after 5:00 PM Warsaw time. Monthly gross salary: PLN 17,000 to PLN 21,000 under an employment contract (CoE/umowa o pracę). Final compensation depends on experience and skills. Work Location and Schedule This role is open to candidates based in or near Warsaw. Work is primarily remote, with in-office collaboration expected on Tuesdays and Wednesdays. These in-person days help strengthen team connections and support company culture. Key Responsibilities Split time between maintaining current systems and developing new automation and tooling for the platform. Support major roadmap projects, including migrating infrastructure to a new AWS region to improve cost efficiency and availability. Take part in the "Sheriff" rotation, covering about one week per month during regular office hours.

Apr 14, 2026

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Mid-Level Site Reliability Engineer / DevOps - 6 Month Contract

margo-group

Contract|On-site|Warsaw

Join our innovative team at margo-group, where we are on a mission to enhance our developer platform and set industry-leading CI/CD standards across various teams. This role is tailored for individuals who thrive on designing effective solutions rather than merely maintaining existing ones. Key Responsibilities: - Design and implement robust CI/CD architectures.- Standardize deployment processes and pipelines across teams.- Enhance our Kubernetes platform through improved deployment patterns and automation.- Develop tools to automate developer processes using Python.- Create effective artifact repository structures and versioning strategies.- Lead or co-lead SCM and CI/CD migrations.- Collaborate closely with development teams as a trusted technical partner.

Mar 18, 2026

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Senior Site Reliability Engineer - Traffic Engineering

Nord Security

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Join the Vanguard of VPN Technology!At NordVPN, we are at the forefront of providing cutting-edge virtual private network solutions, offering more than just security. If you're a proactive innovator who enjoys tackling complex problems, we invite you to be part of our team developing Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—empowering users with enhanced privacy, security, and control.Your Contribution: Enable millions of users to reclaim their online security, privacy, and data.As a Senior Site Reliability Engineer, you will ensure content accessibility across our worldwide edge network. Your primary responsibility will be to guarantee that traffic reaches our users swiftly, reliably, and securely, no matter where they are located.You will navigate the realms of networking, load balancing, and traffic shaping. When issues arise—be it slowness, inaccessibility, or erratic behavior at the protocol layer—you will be the one to diagnose and resolve them.Key Responsibilities:Ensure seamless content accessibility across a globally distributed edge infrastructure.Design, operate, and enhance load balancing and traffic shaping systems at scale.Troubleshoot connection, latency, and accessibility issues end-to-end.Manage HTTP traffic flow from client to edge to origin and back.Investigate and rectify website and service reachability problems.Work across protocol layers to diagnose issues in depth.Core Qualifications:Proficient in load balancing and traffic shaping techniques—architecture, algorithms, health checks, and failover mechanisms.Experience with NGINX and/or HAProxy—configuration, tuning, and debugging in high-traffic environments.Solid understanding of networking fundamentals, including DNS, routing, firewalls, and packet analysis.Fluency in the OSI model—comfortable working across layers 3 to 7, with knowledge of TCP internals, SSL/TLS handshake, and termination.Experience with SaltStack.Linux administration skills.Proficiency in Python for automation, tooling, and scripting.Ability to troubleshoot network and application layer issues in large-scale production environments.

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Mid-Senior Site Reliability Engineer at Nordsec | Warsaw

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Mar 16, 2026

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Senior Site Reliability Engineer - Traffic Engineering | NordVPN

Nord Security

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Apr 3, 2026

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Senior Site Reliability Engineer - Observability at NordVPN | Warsaw

Nordsec

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Join the forefront of online privacy and security with the world's most advanced VPN.At NordVPN, we're on a mission to empower individuals with privacy and control over their online presence. If you are a driven problem-solver with a passion for technology, join our innovative team behind Threat Protection Pro and the NordLynx protocol—tools designed to ensure fast, secure, and reliable internet access.Your Role: As a Senior Site Reliability Engineer with a focus on observability, you'll play a pivotal role in enhancing our monitoring systems. Your efforts will improve signal quality, reduce alert fatigue, and collaborate closely with data teams on anomaly detection, ultimately leading to a deeper understanding of our distributed systems' health and behavior.

Apr 3, 2026

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Senior Staff Site Reliability Engineer - Platform Engineering | NordVPN

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Join the forefront of online security with NordVPN.Are you an innovative problem-solver eager to make a difference? Be a part of our exceptional team that develops the Threat Protection Pro, the NordLynx protocol, and the world's fastest VPN, empowering users to reclaim their privacy, security, and control online.Your Contribution: Assist millions in regaining authority over their online safety, confidentiality, and data.At NordVPN, we safeguard millions daily, leveraging a global edge infrastructure with thousands of servers across multiple countries. Our platform engineering team is responsible for building and operating the internal backend systems that facilitate this functionality.We are seeking a Senior Staff Site Reliability Engineer (SRE) to design, develop, manage, and enhance these systems. This role demands high ownership — you will architect solutions and deploy them to production. You will be the cornerstone for others when it comes to rethinking architecture or deploying a service from zero to global scale.

Apr 3, 2026

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Senior Site Reliability Engineer - VPN Services | NordVPN

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Join the Vanguard of Online Security with NordVPN!Are you a passionate problem-solver ready to make an impact? Become a part of our innovative team responsible for developing Threat Protection Pro, the NordLynx protocol, and the fastest VPN service available—solutions designed to empower users with enhanced privacy, security, and control over their digital lives.Your Contribution: Enable millions of people to reclaim their online security and privacy.As a Senior Site Reliability Engineer, you will oversee our globally distributed VPN and DNS infrastructure, ensuring that millions of users enjoy seamless, fast, and secure connections. Your role will involve deploying, managing, and enhancing VPN nodes across the globe.Collaboration with application teams is key to ensuring optimal client connectivity from end to end. Quality and reliability are paramount in this position.

Apr 3, 2026

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Site Reliability Engineer | Mid-Senior | Saily

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Join Saily, where we revolutionize connectivity for travelers by eliminating roaming fees and plastic SIM cards, offering seamless, high-speed mobile data in over 200 destinations. With millions of satisfied customers and countless travelers engaging with Saily at any moment, our mission is clear.We cultivate an AI-native Product Engineering culture that empowers our engineers to be builders, taking ownership of customer challenges from concept to deployment. AI agents assist in coding and automating repetitive tasks, enhancing engineers' productivity. We believe in constant improvement, where every team member is encouraged to propose enhancements and implement innovative solutions.Curiosity and knowledge sharing are vital to us, ensuring that our primary focus remains on delivering a comfortable, connected, and hassle-free experience for our customers.At Saily, we prioritize growth over comfort, contributions over hierarchy, and impact over process. We empower talented individuals with the context, autonomy, and AI tools necessary to excel in their roles.

Apr 12, 2026

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Site Reliability Engineer at ShiftKey | Warsaw

ShiftKey

Full-time|PLN 17K/mo - PLN 21K/mo|Hybrid|Warsaw

About ShiftKey ShiftKey connects healthcare facilities with licensed and certified professionals to fill open shifts. By applying marketplace principles and deep industry knowledge, ShiftKey addresses staffing shortages in healthcare and helps facilities connect directly with qualified workers. The platform gives professionals control over their schedules, helping more licensed workers return to the workforce and easing a critical challenge in the sector. Learn more at www.ShiftKey.com. Role Overview ShiftKey is hiring a Site Reliability Engineer in Warsaw to keep the Marketplace platform stable, secure, and highly available. The SRE team works closely with engineering to prevent incidents before they happen. In 2025, the platform recorded only 6 minutes of downtime. Maintaining this reliability, while supporting a migration to a new AWS region, will be a central focus. This role blends hands-on maintenance (reducing technical debt, improving deployments, strengthening observability) with engineering and automation projects that make the platform easier to manage over time. ShiftKey values a "you build it, you run it" approach, but avoids burnout. Thanks to a follow-the-sun model with US-based colleagues, there are no scheduled on-call duties after 5:00 PM Warsaw time. Monthly gross pay ranges from PLN 17,000 to PLN 21,000 under an employment contract (CoE/umowa o pracę). Final compensation depends on experience and skills. Work Location and Schedule Candidates should be based in or near Warsaw. The role is primarily remote. In-person collaboration is encouraged on Tuesdays and Wednesdays to support team connection and culture. What You’ll Do Split time between maintenance/support and development work focused on automation and tooling improvements. Contribute to major roadmap projects, including migrating infrastructure to a new AWS region for better cost and availability. Join the "Sheriff" rotation (about one week per month during standard office hours) to help maintain operational excellence.

Apr 14, 2026

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Site Reliability Engineer at ShiftKey | Warsaw

ShiftKey

Full-time|PLN 17K/mo - PLN 21K/mo|Hybrid|Warsaw

About ShiftKeyShiftKey is revolutionizing the healthcare staffing landscape by directly connecting licensed and certified professionals with healthcare facilities that need to fill shifts. We utilize marketplace dynamics and extensive industry knowledge to tackle America's healthcare staffing shortages. Our platform empowers healthcare workers with the flexibility to choose their work schedules, contributing to the reinvigoration of the workforce in this critical sector. Discover more at www.ShiftKey.com.Role OverviewAs a Site Reliability Engineer, you will ensure our Marketplace platform remains stable, secure, and highly available. You will actively collaborate with engineering teams to preemptively address potential issues. In 2025, our platform achieved an impressive 6 minutes of downtime, and you will be integral to maintaining this standard while overseeing a migration to a new AWS region.This position combines hands-on maintenance tasks (reducing technical debt, enhancing deployment processes, and fortifying observability) with engineering and automation efforts that streamline platform operations over time.Join a culture where 'you build it, you run it' is a mantra, without the risk of burnout. Thanks to our US-based counterparts, we maintain a follow-the-sun model, eliminating scheduled on-call duties after 5:00 PM Warsaw time.Monthly gross salary for this position ranges from PLN 17,000 to PLN 21,000 under an employment contract (CoE/umowa o pracę). Final compensation is determined based on experience and skill level.Work EnvironmentCandidates should be based in or near Warsaw. This role is primarily remote, with encouraged in-office collaboration on Tuesdays and Wednesdays to foster team engagement and cultural development.Key ResponsibilitiesDedicate 50% of your time to operational maintenance and support while the other 50% focuses on active development, enhancing automation and tooling.Contribute to significant roadmap initiatives, including migrating our infrastructure stack to a different AWS region to boost cost-efficiency and availability.Engage in the 'Sheriff' rotation, approximately one week per month during standard office hours.

Feb 17, 2026

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