Senior Full Stack Software Engineer (d/f/m) (Berlin, Germany)

Senior Full Stack Software Engineer (d/f/m)

What is Leapsome?

Leapsome is the AI-powered people platform revolutionizing HR for modern teams. Leapsome drives HR excellence and empowers high-performing teams by automating, connecting, and simplifying every HR process across the employee lifecycle — from onboarding and performance management to engagement and development. Built with ease of use in mind, our platform ensures high adoption by employees, managers, and People teams alike.

Our purpose is to make work fulfilling for everyone, and our vision is to reshape the future of work by being the leading People platform for HR excellence and high-performing teams. We enable companies to create environments where people can achieve their goals, learn and grow together, and build genuine motivation & engagement.

Trusted by thousands of organizations globally, Leapsome secured $60 million in Series A funding led by Insight Partners in March 2022. This funding allowed us to further develop our intelligent platform, create exceptional employee experiences, and expand into the US market.

It’s an incredibly exciting time to join Leapsome and be part of reshaping the future of work!

Your opportunity:

Join a small yet impactful engineering team that’s reshaping the future of work. At Leapsome, we empower product engineers to take ownership of their work, contributing to the full lifecycle of our features, from ideation and discovery to development and iteration. Collaboration is at the core of how we operate: you’ll work closely with product and design teams, combining vision and technical insight to create innovative, scalable, and secure solutions that delight our users.

We emphasize delivering exceptional user experiences and solving real-world problems through thoughtful design, robust engineering, and an iterative, data-driven approach. As part of an agile and ambitious team, you’ll play a key role in shaping product and architecture decisions, creating features that truly make an impact.

Your primary focus will be on People Enablement modules, such as performance management, learning, and engagement. A core part of your role will be developing features powered by AI capabilities, building AI-powered features that unlock new ways of working and understanding one another, with more authenticity and less effort. You'll design tools that empower employees and managers to collaborate and grow, contributing to features that emphasize usability, accessibility, and innovation. You'll also have opportunities to contribute to other strategic initiatives, including HRIS and broader platform enhancements.

You will:

• Design and develop impactful features for the People Enablement suite, including performance management, learning, and engagement tools
• Collaborate closely with product and design teams to deliver user-centric solutions, participating actively in product discovery and grooming sessions
• Develop AI-driven solutions for user problems, experiment with cutting-edge AI technologies, and develop foundational tooling (incl. agents, tools, evals, tests) to enhance AI-driven features
• Build and maintain reusable, scalable frontend and backend components using our modern tech stack (Vue.js, Node.js, MongoDB)
• Ensure high-quality releases by contributing to robust testing, monitoring, and code review processes
• Analyze data and user feedback to refine features iteratively and deliver meaningful product improvements
• Contribute to cross-domain projects, such as smarter platform initiatives or HRIS, when strategic priorities align
• Provide mentorship and guidance to teammates, helping the team grow in technical and product expertise

What is the technology stack?

Frontend: Vue.js, TailwindCSS, and a modern design system for a consistent, intuitive user experience

Backend: Node.js (TypeScript) with Express, MongoDB and NATS, built for scalability and modularity

AI/LLMs: Integration of state-of-the-art AI technologies, OpenAI and LangChain/LangGraph/LangSmith, to create smarter workflows and enhance functionality; using AI tools such as Cursor, CodeRabbit, Deep Research to accelerate learning, automate repetitive tasks, and rapidly prototype and iterate on solutions

Infrastructure: Docker and AWS, ensuring robust CI/CD pipelines and scalable infrastructure

Testing: Automated testing using Playwright, Vitest, Mocha/Chai, and other tools to maintain high-quality, reliable codebases

Analytics: Mixpanel, Sentry, Datadog and custom solutions for data-driven development and monitoring

Collaboration: GitHub, Notion, and async communication tools for transparent teamwork

You will be a good fit if you:

• Share our belief that engineering is a product-focused discipline, and you’re passionate about solving user problems with impactful solutions
• Thrive in a dynamic, agile environment where priorities can shift, and enjoy collaborating across teams and domains
• Have 5+ years of experience as a full-stack engineer, working on scalable and secure applications
• Are proficient with modern web frameworks (e.g., Vue.js, React) and backend technologies (Node.js, MongoDB)
• Have experience with design systems and building user-friendly, modular components
• Have hands-on experience experimenting with AI/LLMs and stay current with the latest developments in AI tooling, models, and best practices
• Value pragmatic excellence, striking a balance between high standards and efficient delivery
• Enjoy mentoring teammates, fostering a collaborative, supportive engineering culture
• Can contribute to discussions on architecture and strategy while excelling in hands-on development

Benefits:

• Impact: Become part of a fast-growing scale-up taking over the People Performance & Enablement space by making work fulfilling for more than two million people by 2025
• Teammates: Join a diverse and international team of talented, smart, and kind people
• Feedback and recognition: We value feedback exchange and celebrating successes — big and small
• Hybrid model: Enjoy our hybrid model by working from home or in our offices in the heart of Berlin, Germany
• Flexible work: Experience a work-life balance with flexible hours and the option of working elsewhere for up to 2 months per year
• Learning and Development: Develop your skills with a yearly development budget of €2,000 and access to Good Habitz platform
• Vacation: Take 30 vacation days every year plus public holidays (or upgrade to 40 vacation days at adjusted pay) & benefit from a month-long paid sabbatical after 5 years with Leapsome
• Health & Wellness: Stay active and healthy with a free Urban Sports Club membership and Oliva subscription
• Mental health: Access to 1:1 therapy sessions via our mental health partner, plus company workshops and learning pathways on topics like mindfulness and digital wellness
• Corporate Benefits: Get exclusive discounts and deals from our partners.
• Work-from-home stipend: Receive a one-time work-from-home stipend of €1,000
• Monthly team activities: Have fun at monthly team activities like kayaking, laser tag, and game nights
• Competitive pay and pre-IPO equity package

Leapsome’s values

We stay true to our values in everything we do at Leapsome.

• Seek impact — What brought us together is the desire to make work fulfilling for everyone. We’re like-minded in that we seek out and hold ourselves accountable for the impact we want to have in this world.
• Listen & learn — We thoroughly and genuinely seek understanding. It helps us to constantly grow together and learn from each other as well as from our customers and partners.
• Challenge the status quo — We regularly challenge ourselves. We don’t walk the beaten path just because everyone else does. Instead, we reflect and seek out better ways.
• Take ownership & pursue excellence — We’re a group of smart and dedicated people, and we trust each other to truly own our work. We’re not afraid of high expectations as we strive for excellence.
• Be honest & transparent — We’re honest and transparent with each other and ourselves. We want to get to the core of it, always. We trust each other to handle all shared information with care.
• Be kind & humble — We are more than just colleagues — we genuinely care for each other. We give each team member the appreciation they deserve and the support they need. We have no interest in serving our own ego.

Excited to be part of Leapsome? 😊Just send us your CV. You won't need to input any information already mentioned on your CV later on - promise! 🤙

A cover letter isn’t necessary, but we’d really appreciate a brief answer to these questions: Why Leapsome? Why you?

We look forward to getting to know you!

You can find more about what our colleagues think about working at Leapsome here 👉 ✨✨✨ Glassdoor ✨✨✨ Kununu✨✨✨

Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply for jobs unless they meet every qualification. If you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles.

Help us make work fulfilling for everyone!

At Leapsome, we want work to be the best it can be for everyone. We help companies create environments where people can achieve shared goals, build authentic relationships, learn, and grow together.

Put simply; our purpose is to make work fulfilling for everyone. And we know how to get there. But we can only do this by “walking our talk” and building a diverse and inclusive company where people — not just the business — thrive.

Apply now 👇 or keep scrolling to read more about what makes Leapsome a unique workplace!

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