Senior Full-stack Engineer (Kotlin/React)

Join one of our platform teams and help us build the foundations that power Productboard – a one-of-a-kind product management system used by 5000+ global companies. You’ll work across backend services and user-facing interfaces to build the foundational capabilities that other product teams rely on - including authentication, permissions, shared services, and platform-wide experiences. Our scope spans both backend systems and frontend features, so we’re looking for fullstack engineers who enjoy working across the stack and delivering complete, end-to-end solutions. As a Senior Fullstack Engineer (IC3), you’ll own the delivery of complex or ambiguous projects, working across Kotlin-based backend services and React/TypeScript frontends. You’ll partner with product managers and designers to simplify complexity, drive clarity, and ship iteratively. You’ll also mentor other engineers and help the team maintain high technical standards. We value strong Kotlin or Java backend experience, paired with frontend skills in React and TypeScript. If you’re motivated by cross-cutting impact, enjoy working across service boundaries, and are excited by foundational engineering challenges, we’d love to hear from you. This role is primarily based in our Prague or Brno office with an office-centric hybrid schedule.

Responsibilities

• Take full ownership of features and platform capabilities, working across backend (Kotlin) and frontend (React/TypeScript) layers to deliver end-to-end solutions.
• Lead the delivery of complex or ambiguous fullstack projects, breaking down problems, scoping technical work, and shipping iteratively.
• Work primarily in Kotlin-based services to build reliable, scalable, and maintainable internal systems.
• Contribute to platform-wide efforts like authentication, permissions, notifications, and shared UI patterns.
• Collaborate with product managers and designers to define technical solutions that balance speed, scope, and user experience.
• Write high-quality, well-tested code across both frontend and backend codebases.
• Mentor junior and mid-level engineers through pairing, design reviews, and technical feedback.

Requirements

• 4+ years of professional experience building and maintaining production systems at scale
• Strong backend development skills in Kotlin or Java, with experience in designing and evolving service-level logic and infrastructure
• Working proficiency in React and TypeScript, with the ability to contribute meaningfully to frontend implementation and UX polish
• Proven ability to own features end-to-end across backend and frontend systems
• Experience delivering projects iteratively in cross-functional teams
• Familiarity with tools like PostgreSQL, Kafka, GraphQL, and AWS
• Experience mentoring other engineers and helping uplift team-wide engineering quality
• Clear communication skills - especially when explaining technical trade-offs and collaborating across functions
• A pragmatic, product-focused mindset - you care about delivering impact, not just elegant code
• Bonus: Experience working on authentication, permissions, observability, or similar foundational concerns
• Bonus: Curiosity to explore AI-based tooling for accelerating backend/frontend development or automation

Our Tech Stack

• You’ll work with the following frameworks, tools, and languages:
• Frontend: TypeScript, React, GraphQL
• Backend: Kotlin, Ruby, Kafka
• Storage: PostgreSQL, MongoDB, Elastic, Redis
• Data Pipeline: Python, Keboola, Looker, Snowflake
• Infrastructure: AWS, Cloudflare, Kubernetes, Terraform
• Business tools: Slack, Jira, Google suite, Zoom, Notion
• Full Tech Stack

About Productboard

At Productboard, we’re on a mission to help product teams build exceptional products with clarity and confidence. As the leading intelligent product management platform, we empower over 4,000 companies, including Salesforce, SAP, Autodesk, and Kroger, to understand what customers need, prioritize what to build next, and align everyone around a shared roadmap. Headquartered in San Francisco with offices in Prague and Brno, Czechia, we’re backed by some of the world’s most respected investors, including Index Ventures, Kleiner Perkins, Sequoia Capital, Bessemer Venture Partners, Tiger Global, and Dragoneer. We’re proud to be consistently recognized as one of the best places to work by BuiltIn and Comparably, and to count ourselves among the world’s leading unicorn companies. Well-funded and financially disciplined, we have the stability and runway to build boldly for the long term. Over the past few years, we’ve rearchitected our platform from the ground up to serve enterprise scale and set the foundation for the next era of product management. Now we’re entering an exciting new phase with Productboard Spark, our AI-first, agentic experience that transforms how product teams work. Spark is a true collaborator that deeply understands your product context, company strategy, and customer needs, helping teams move faster and make smarter, more confident decisions. Join us as we build the future of product management.

About our culture

Imagine working in a place where everything matters — most importantly, you. At Productboard, values aren’t just something we like to talk about, they’re something we live and breathe. We believe in creating a work environment where:

• People feel empowered, supported, and included
• Trust and transparency are built into the way we work
• Creativity, curiosity, and continuous improvement are encouraged and nurtured every day

Forming our company values was a group effort, with every employee allowed to contribute. From profit-sharing initiatives, like stock options, to open calendars and communication, we don’t waste time on politics or ego. We champion openness by sharing our goals, successes, and failures. Join colleagues who are passionate about what they do. Team members who are invested in their work environment, and the future of Productboard. Help shape our company, culture, and product! Check out our LinkedIn Life page, or listen to our People of Productboard podcast for a real feel of what life is like at Productboard. Equal Opportunity Employer Statement We are an equal opportunity employer and champion equity. We aim to help people from all backgrounds, cultures, and groups realize their full potential at Productboard. We do not tolerate any discrimination or harassment based on gender identity, race, color, religion, age, sexual orientation, non-disqualifying physical or mental disability, national origin, veteran status, or any other bias covered by appropriate law. All aspects of employment, including hiring, training, promotion, and terminations, are based on merit, competence, performance, and business needs. We are committed to an inclusive hiring process and provide all candidates with equal opportunity to demonstrate their abilities. Togetherness is one of our core values, and our Diversity Council helps to ensure that we uphold the values of authenticity, humanity, and diversity to create an environment where every person matters. We are committed to leading by example to drive societal change.