Express Jobs in Prague.
All active Express roles based in Prague.
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Software Developer (Ktor Framework)
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At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create.
We are looking for a Software Developer to join the core team developing Ktor, an asynchronous framework for building connected applications.
Ktor provides an HTTP server and client stack with multiple low-level subsystems (I/O, networking, protocols, etc.) and a rich set of extensible features. The team works on both evolving existing functionality and designing new framework capabilities.
In this role, you will:
- Work on the core of the Ktor framework.
- Develop and improve HTTP server and client subsystems.
- Design and implement new framework features and extensions.
- Maintain and improve the existing codebase with a focus on quality, performance, and reliability.
- Participate in design discussions and code reviews.
- Collaborate closely with other developers and contributors.
We’ll be happy to have you on our team if you have:
- Solid experience with Kotlin.
- Good knowledge of algorithms and data structures.
- The ability to write clean, maintainable, and well-tested code.
- Strong collaboration and communication skills.
- The ability to clearly express and justify technical decisions.
- Working proficiency in written and spoken English.
We’d be especially thrilled if you have:
- Experience with web technologies and application frameworks.
- An understanding of HTTP, REST, and networking concepts.
- Experience with non-JVM platforms or frameworks.
- Experience with library API design and versioning.
Why join JetBrains?
- Strong base salary. We offer competitive pay that reflects your skills and experience.
- Flexible work location. Enjoy the freedom to work from home or from the office.
- Remote work. Spend up to 30 days per year working remotely from abroad.
- Extra time off. More days to relax, recharge, and do the things you love.
- Medical insurance allowance. Enjoy peace of mind for you and your family.
- Learning and development opportunities. Access to conferences, courses, and language classes.
- Relocation support. We help make your move as smooth and stress-free as possible.
- Language classes. Pick up the local language or sharpen your English skills.
- Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays.
- Mental health support. To help you feel your best, we provide easy access to professional mental health services.
- Sports benefit. Enjoy an on-site gym or sports club stipend.
- Internal events. Join company-wide celebrations and team gatherings.
*Some benefits may vary depending on location.
#LI-GZ1
#LI-DNI
#LI-GZ1
We are an equal opportunity employer
We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation.
We process the data provided in your job application in accordance with the Recruitment Privacy Policy.
Ready to apply?
Apply to JetBrains
Software Developer (Ktor Framework)
Share this job
At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create.
We are looking for a Software Developer to join the core team developing Ktor, an asynchronous framework for building connected applications.
Ktor provides an HTTP server and client stack with multiple low-level subsystems (I/O, networking, protocols, etc.) and a rich set of extensible features. The team works on both evolving existing functionality and designing new framework capabilities.
In this role, you will:
- Work on the core of the Ktor framework.
- Develop and improve HTTP server and client subsystems.
- Design and implement new framework features and extensions.
- Maintain and improve the existing codebase with a focus on quality, performance, and reliability.
- Participate in design discussions and code reviews.
- Collaborate closely with other developers and contributors.
We’ll be happy to have you on our team if you have:
- Solid experience with Kotlin.
- Good knowledge of algorithms and data structures.
- The ability to write clean, maintainable, and well-tested code.
- Strong collaboration and communication skills.
- The ability to clearly express and justify technical decisions.
- Working proficiency in written and spoken English.
We’d be especially thrilled if you have:
- Experience with web technologies and application frameworks.
- An understanding of HTTP, REST, and networking concepts.
- Experience with non-JVM platforms or frameworks.
- Experience with library API design and versioning.
Why join JetBrains?
- Strong base salary. We offer competitive pay that reflects your skills and experience.
- Flexible work location. Enjoy the freedom to work from home or from the office.
- Remote work. Spend up to 30 days per year working remotely from abroad.
- Extra time off. More days to relax, recharge, and do the things you love.
- Medical insurance allowance. Enjoy peace of mind for you and your family.
- Learning and development opportunities. Access to conferences, courses, and language classes.
- Relocation support. We help make your move as smooth and stress-free as possible.
- Language classes. Pick up the local language or sharpen your English skills.
- Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays.
- Mental health support. To help you feel your best, we provide easy access to professional mental health services.
- Sports benefit. Enjoy an on-site gym or sports club stipend.
- Internal events. Join company-wide celebrations and team gatherings.
*Some benefits may vary depending on location.
#LI-GZ1
#LI-DNI
#LI-GZ1
We are an equal opportunity employer
We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation.
We process the data provided in your job application in accordance with the Recruitment Privacy Policy.
Ready to apply?
Apply to JetBrains
About IP Fabric
Join a pioneering force in network automation!
At IP Fabric, we enable people to uncover the truth about their networks. Built by network professionals and industry experts, our innovative solutions are transforming how enterprises manage their networks. As a post-Series B company, we're expanding rapidly across Europe, the U.S., and beyond.
About The Role
We are looking for a Senior Fullstack Engineer to join our Product Engineering Feature Team.
You will work on customer-facing features that transform network discovery data into meaningful product capabilities. This is a backend-leaning fullstack role combining system design, product collaboration, and hands-on development.
This role is ideal for an engineer who enjoys ownership, solving complex problems, and influencing how systems are built, not just implementing tickets.
What You’ll Do
- Design, build, and maintain fullstack features using modern technologies
- Contribute to and lead system design discussions
- Own features end-to-end from concept to delivery
- Collaborate closely with Product to define and refine solutions
- Improve system reliability, scalability, and maintainability
- Drive best practices in testing, TDD, and AI-assisted development
- Mentor other engineers and contribute to team growth
- Identify and address technical debt and architectural gaps
What You'll Need
- Strong experience with Node.js, TypeScript, and modern backend development
- Solid frontend experience (React or similar)
- Experience with system design and building scalable applications
- Experience working on complex systems or data-heavy products
- Strong communication skills in English
- Comfortable working in ambiguous environments and shaping solutions
- Proven ownership of features or projects end-to-end
- Experience with:
- RabbitMQ, Redis, PostgreSQL
- Real-time systems (e.g. http://Socket.io )
- Monorepos (Nx), CI/CD pipelines
- Experience driving testing practices (TDD)
- Exposure to AI-assisted development workflows (Codex, Claude, Cursor)
- Networking or Network Engineering knowledge
- Frontend: React
- Backend: Node.js, TypeScript, Express.js
- Messaging: RabbitMQ
- Data: PostgreSQL, Redis
- Tooling: GitLab CI, Nx monorepo, esbuild
Benefits & Perks
- 25 days of holidays + 5 flexi-days.
- Pluxee Flexi Card (up to 16 000 CZK per year).
- Full remote or hybrid role depending on your choice.
- Anniversary rewards.
- Collaboration with diverse, international teams.
- A pet-friendly office at IP Pavlova.
- Complementary and yummy snacks, coffee, brew and refreshments.
- Regular team and company events.
Join us to experience the unique culture of a founder-led startup, where from top to bottom everyone is hands-on and has a chance to make a tangible impact on influential enterprises worldwide. Being part of IP Fabric means being part of a flexible environment that prioritizes work-life balance and growth opportunities.
Ready to apply?
Apply to IP Fabric
About IP Fabric
Join a pioneering force in network automation!
At IP Fabric, we enable people to uncover the truth about their networks. Built by network professionals and industry experts, our innovative solutions are transforming how enterprises manage their networks. As a post-Series B company, we're expanding rapidly across Europe, the U.S., and beyond.
About The Role
We are looking for a Senior Platform Engineer (L3/L4) to join our Platform Team and help evolve the core architecture of IP Fabric’s product. You will work hands‑on in the codebase, drive architectural improvements, and enable other engineering teams through a stronger, more scalable platform.
This is a high‑impact IC role requiring strong backend engineering skills, architectural thinking, and the ability to collaborate closely with Product and other engineers.
What You’ll Do
- Design, refactor, and evolve core platform components
- Drive architectural improvements to reduce technical debt and improve scalability and stability
- Own platform initiatives from problem definition to delivery
- Improve build, deployment, and operational workflows
- Collaborate closely with Product to translate business goals into technical roadmap items
- Mentor and support other engineers through technical leadership and clear communication
What You'll Need
- Strong backend engineering experience with TypeScript / Node.js
- Experience working with PostgreSQL and Redis
- Proven experience refactoring and maintaining existing production systems
- Experience with on‑prem and cloud deployments
- Ability to work independently and identify what needs to be done
- Strong written and verbal communication skills in English
- Valid VISA to work in Czechia / EU
Bonus Points If You Have
- Experience in platform or enablement teams
- Exposure to Docker and Kubernetes
- CI/CD pipeline and deployment experience
- Interest in developer experience and internal tooling
Our Tech Stack
- Node.js, TypeScript, Express.js, RabbitMQ, PostgreSQL, Redis, Socket.io
- GitLab CI, Monorepo with Nx, esbuild.
Benefits & Perks
- 25 days of holidays + 5 flexi-days.
- Pluxee Flexi Card (up to 16 000 CZK per year)
- Full remote or hybrid role depending on your choice.
- Anniversary rewards.
- Collaboration with diverse, international teams.
- A pet-friendly office at IP Pavlova.
- Complementary and yummy snacks, coffee, brew and refreshments.
- Regular team and company events.
Join us to experience the unique culture of a founder-led startup, where from top to bottom everyone is hands-on and has a chance to make a tangible impact on influential enterprises worldwide. Being part of IP Fabric means being part of a flexible environment that prioritizes work-life balance and growth opportunities.
Ready to apply?
Apply to IP Fabric