Senior Backend Engineer (Node.js/TypeScript)

Ciklum is looking for a Senior Backend Engineer (Node.js/TypeScript) to join our team full-time in the Czech Republic.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior Backend Engineer (Node.js/TypeScript), become a part of a cross-functional development team engineering experiences of tomorrow.

Responsibilities:

• Take full end-to-end ownership of key features in authentication, authorisation, and identity management
• Design and build high-throughput, distributed backend services using NestJS, TypeScript, Kafka, and Redis
• Work hands-on with AI tools daily to accelerate development, improve code quality, and explore new capabilities
• Contribute to architectural decisions and help shape the technical direction of the platform
• Participate in code reviews and give constructive, thoughtful feedback to your teammates
• Support and mentor junior colleagues when the opportunity arises, and share your knowledge openly
• Collaborate closely with product, QA, and DevOps teams on a daily basis
• Show up to stand-ups, planning sessions, and retrospectives with ideas, not just status updates

Requirements:

• 6+ years of professional backend engineering experience
• Strong, production-grade TypeScript and Node.js skills - must have
• Proven experience in high-scale, high-throughput production environments (millions of requests per day) - must have
• Ability to independently lead feature development from design through to deployment - must have
• Active daily use of AI development tools such as GitHub Copilot, Cursor, Claude, or similar - must have
• Experience designing and implementing distributed, event-driven architectures
• Hands-on experience with NestJS, Kafka, Redis, and MySQL in production
• Comfortable navigating and improving an existing, mature codebase - not just greenfield projects
• Good understanding of CI/CD pipelines and release practices
• Clear, collaborative communication style - someone the team genuinely enjoys working with

Desirable:

• Familiarity with authentication and identity standards: OAuth 2.0, JWT, SAML, WebAuthn, or SSO
• Experience with AWS and cloud-native architectures
• Background in security-sensitive engineering, or prior experience as a security champion
• Experience with designing and integrating large-scale messaging queue services
• Mentoring or informal technical leadership experience - the team includes junior engineers
• Interest in or background with developer tooling, SaaS platforms, or identity infrastructure

What’s in it for you?

• Flexible working hours
• Home office option
• 5 weeks of holiday
• 5 sick days
• Multisport Card
• Meal allowance
• Internal trainings including workshops and seminars
• Paid certifications and technical as well as soft-skills training
• Possibility to participate in international conferences
• Fresh fruit, coffee, and a weekly company breakfast in the office
• Loyalty bonus after 5, 10, 15 and more years with the company
• Referral bonus programme
• Corporate events including team building, outdoor activities, Christmas party, health week, summer ice cream, and more
• Hybrid and remote working options available across our Czech offices in Prague, Hradec Králové, and Zlín

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.

With delivery centers in Prague, Hradec Králové, and Zlín, our Czech team delivers end-to-end solutions across industries. Here, innovation thrives through collaboration, and every idea drives our partners' success.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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