Staff Software Engineer

Wrike; Warszawa; On-site; PLN 300,000 - 420,000; Full time

Job summary

Wrike’s Backend Reliability (BRE) team is the backbone of our backend infrastructure and the guardian of our uptime. Our mission is to achieve and sustain 99.99% availability while building the tools, components, and safety nets that the entire engineering organization relies on.

As a Senior / Staff Backend Engineer on this team, you won’t just close tickets - you’ll architect core reliability solutions that shape how Wrike scales, performs, and recovers from failure.

Qualifications

• Strong experience with Java/JVM backend systems.
• Distributed systems expertise incl. high availability, CAP theorem, and fault tolerance.
• Relational databases (PostgreSQL) and Redis experience.
• Containerization and cloud-native environments (Docker, Kubernetes).
• Experience with message brokers such as RabbitMQ or Kafka.
• Ability to work independently with critical thinking.
• Strong English for collaboration in an international environment.

Responsibilities

• Design, build, and maintain reliability components such as rate limiters, migration tools, circuit breakers, and Redis caching.
• Troubleshoot production issues and optimize PostgreSQL usage under high load.
• Lead investigations during severe production incidents and propose mitigations.
• Create scalable tools and frameworks to help other teams build resilient services.
• Leverage AI-based tooling to accelerate development and automation.
• Share knowledge and set high reliability standards across engineering.

Skills

Java/JVM backend

Distributed systems

PostgreSQL

Redis

Docker

Kubernetes

RabbitMQ

Kafka

English communication

Tools

Docker

Kubernetes

RabbitMQ

Kafka

Graylog

Zabbix

Grafana

BigQuery

Job description

Wrike is the most powerful work management platform. Built for teams and organizations looking to collaborate, create, and exceed every day, Wrike brings everyone and all work into a single place to remove complexity, increase productivity, and free people up to focus on their most purposeful work.

Wrike is our people, not a place. As a distributed team, we own our growth, stay globally connected, and rely on the product we build to deliver impactful work alongside brilliant minds. You'll have real ownership over meaningful work, a global team that has your back, and the flexibility to do your best work your way. If that sounds like you, we'd love to hear from you.

Our vision: A world where everyone is free to focus on their most purposeful work, together.

About the Role:

Wrike’s Backend Reliability (BRE) team is the backbone of our backend infrastructure and the guardian of our uptime. Our mission is to achieve and sustain 99.99% availability while building the tools, components, and safety nets that the entire engineering organization relies on. As a Senior / Staff Backend Engineer on this team, you won’t just close tickets - you’ll architect core reliability solutions that shape how Wrike scales, performs, and recovers from failure.

Your Impact:

• Design, build, and maintain critical reliability components such as HTTP rate limiters, internal DB schema migration tools, circuit breakers, and distributed Redis-based caching.
• Troubleshoot complex production issues, optimize PostgreSQL usage, and ensure our distributed systems remain performant and stable under high load.
• Lead preliminary investigations during severe production incidents: identify likely root causes, assess impact, and propose mitigation options. The long-term fixes are then implemented by the owning team, based on your findings.
• Create scalable, reusable tools and frameworks that help other engineering teams build more resilient services.
• Leverage AI-powered tools and coding agents to accelerate development, analyze architectures, and automate repetitive or error-prone tasks.
• Influence reliability best practices across engineering by sharing knowledge, reviewing designs, and setting high technical standards.

Your Qualifications:

• Strong expertise with Java/JVM, building scalable, high-performance backend systems; open to leveraging other languages when appropriate.
• Solid understanding of distributed systems concepts, including high availability, CAP theorem, and fault tolerance.
• Deep experience with relational databases (PostgreSQL) and key–value / non-relational storages (Redis).
• Practical experience with containerization and cloud-native environments, including Docker and Kubernetes.
• Hands-on experience with message brokers such as RabbitMQ or Kafka.
• Ability to work independently with minimal supervision, using critical thinking to question assumptions and validate your own decisions.
• Strong written and spoken English skills suitable for collaborating in an international engineering environment.

Standout Qualities:

• Background in infrastructure engineering or Site Reliability Engineering (SRE), including infrastructure-as-code practices.
• Experience leading technical initiatives, driving cross-team projects, and mentoring other engineers while remaining an individual contributor.
• Familiarity with observability and monitoring stacks (e.g., Graylog, Zabbix, Grafana) and/or data analytics tools such as BigQuery.
• A strong interest in how complex systems fail and a track record of designing them to recover gracefully.

Team Dynamics:

You will join the Backend Reliability (BRE) team, a small, highly specialized, senior group focused solely on Wrike’s reliability. The team operates as an internal “reliability task force,” partnering closely with product and platform engineering teams across the company. You’ll collaborate with other senior engineers who value autonomy, deep technical discussions, and rigorous engineering practices. The culture is ownership-driven: you are trusted to manage your time, make architectural decisions, and drive initiatives to completion.

Our Work Style:

The BRE team works on core backend and infrastructure services that support millions of users. We operate in a collaborative environment that values clear communication, thoughtful design, and fast feedback loops.

• Tech focus areas include: Java/JVM-based services, PostgreSQL, Redis, Docker, Kubernetes, RabbitMQ/Kafka, and observability/monitoring tools.
• We encourage the use of modern AI-based tooling and coding agents as part of daily development and troubleshooting workflows.
• Work is organized with an emphasis on impact and reliability goals rather than ticket volume, giving you room for deep work and long-term improvements.
• Hybrid work mode (Prague, Czech Republic / Nicosia, Cyprus), with flexibility to balance focused individual work and collaborative sessions.

We’re a team of innovators and creators who solve the complex work problems of today and tomorrow.

Wrike is our people, not a place. With 1,000+ employees collaborating across nearly every time zone, we support talent through 10 global hubs — Australia, Costa Rica, Cyprus, Czechia, Estonia, France, India, Ireland, Japan, and the United States — offering flexible ways of working that include remote work, hybrid environments, and co-working spaces across many locations.

While flexibility looks different across teams and regions, employees located near certain hubs — particularly in Prague (CZ), Nicosia (CY), Bangalore (IN), and Rennes (FR) — are generally expected to collaborate in person around 2–3 days per week, balancing the flexibility of distributed work with opportunities for in-person collaboration and connection.

Our persona

Smart: We love what we do, and we’re great at it because this is our domain. Our combined knowledge in this space is unmatched.

Dedicated: We get up every day focused on helping our customers win. We’re committed to helping our teammates win, too!

Approachable: We're friendly, easy to get along with, considerate, and helpful.

Our culture and Values

We care about our customers. We understand the customer journey, experience, and value derived from Wrike. Decision-making and action-taking are done with the customer in mind.

We work as one and win together, each bringing unique strengths that contribute to diversity of thought for better outcomes. Leveraging our own work management platform, we foster an environment of creative collaboration and shared achievement.

We strive to succeed through continuous innovation. It’s our pursuit of novel concepts that helped us create a market category. We continue to cultivate a workplace that fosters creative thinking as a means of transcending conventional boundaries and empowers us to break new ground to deliver extraordinary work management solutions.

We believe in ownership at all levels of the organization, by owning workflows from start to finish. Each member of our team is an integral part of this commitment, establishing work as a platform for personal growth and transformation, as well as collective success and growth.

Demographic Questions

As part of our ongoing efforts to foster a workplace that values diversity of background, perspective, and experience, we invite you to participate in this voluntary self-identification survey. Your responses will help us better understand the makeup of our applicant pool and assess the impact of our inclusion-focused programs globally.

Participation is entirely optional, and your choice to respond—or to select "Prefer not to answer"—will not affect your application or hiring outcome in any way.

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