Senior Full Stack Engineer

We’re building the core platform that powers internal communications at scale, helping organizations connect with their employees efficiently, reliably, and with content that truly matters.

To achieve this, we’re looking for a Senior Full Stack Engineer who’s passionate about crafting seamless experiences end-to-end - from intuitive user interfaces to robust backend integrations. You’ll play a key role in shaping the future of our platform and ensuring it performs flawlessly for thousands of users every day.
Join us and help build the platform that empowers internal communicators to reach every employee with the right message at the right time.

Haiilo is a 360° Employee Communications Platform that strengthens the cohesion, motivation and culture in organizations. With more than 1,000 international clients such as Coca Cola, EY, Deutsche Bahn and Deutsche Telekom, we’re one of the largest global providers of employee communications software for companies to reach, engage and understand more than 3.5 million employees every day.

Who we’re looking for

• 7+ years of experience with Angular and 5+ years with Java (Spring Boot)
• Strong understanding of microservices architecture , REST APIs, and asynchronous communication (RabbitMQ or similar)
• Hands-on experience with cloud environments (GCP preferred) and containerized deployments (Docker, Kubernetes)
• Proven ability to deliver end-to-end features that are intuitive, scalable, and maintainable
• A proactive mindset: you take ownership, communicate clearly, and raise blockers early
• Bonus points if you’ve worked in SaaS environments, contributed to architectural improvements, or enjoy mentoring others

We encourage you to apply even if your profile does not yet meet all the requirements for the position. At Haiilo we support your personal development as well as your individuality, no matter what background you have.

What you’ll do

• Design, implement, and maintain key frontend features (Angular) integrated with backend microservices (Spring Boot, Java)
• Deliver product work from concept to deployment , ensuring quality and performance
• Collaborate closely with developers, designers, QA, and product managers to ensure smooth delivery
• Maintain CI/CD pipelines and monitor production stability for team-owned features
• Provide technical mentorship , participate in reviews, and ensure architectural consistency
• Proactively identify technical risks, performance bottlenecks , and opportunities for simplification

What we offer:

👩🏼‍💻Flexibility & Teamwork: We love our hybrid setup and meet to work on-site at least 1 day/week, with Wednesdays as the designated in-office day. While Wednesday is the minimum, we recommend spending 2 (or more) days in the office each week.

🎉Company Vibe: We value spending time together, so you’ll get to join regular team socials, themed afterworks (e.g. Pride Month, Cultural Awareness Month, etc.), in-person workshops, and our annual company week in Hamburg 🥳

🚀Growth: At Haiilo, we are passionate about personal and professional growth. Our leadership is dedicated to helping you improve every day, through individual and group workshop sessions, financial support for training, conferences, books, etc. and external learning resources (e.g. access to Blinkist)

🌴Time off: Depending on your location, we offer up to 30 vacation days to take some well-deserved time off. Our employees in all locations get 2 annual company-wide self-care days on top of the normal vacation days (because we love what we do, but we also love a healthy work-life balance!)

🌟Health & wellbeing: To promote physical and mental wellbeing, we not only offer health insurance for all locations and a discount for sports memberships but also access to Nilo.health. ’Cause healthy employees = happy employer!

🌏Sustainability: We only have one planet: We understand the importance of sustainability. We are a carbon-neutral company, our merch is sustainable and we offer exclusive discounts for sustainable brands through FutureBens

🫂Diversity & Inclusion: We are committed to a diverse and inclusive environment. As an international and multicultural team with different skills, ideas and experiences, we actively work to represent and promote diversity in the company