We’re looking for a world-class Lead Full Stack Developer who enjoys owning complex systems end-to-end, from modern frontend applications to scalable backend services. You’re comfortable moving between product-facing frontend work and building robust APIs and services that run at scale.

Who would you be working with?

Since 2010, we have grown to almost 800 people, more than 3000 customers, and we are looking forward to continuing this growth journey! We provide the full spectrum of financial services, from accounting to interim CFOs for some of the fastest growing companies in Finland as well as all over the Nordics. Everyone works closely together, meaning you will be working with other CFO’s, Accountants, Payroll Specialists, HR specialists, Systems and Integrations Specialists, but most importantly, with great customers. Besides our consulting services, we already have a large, established tech team with over a hundred people who use programming languages for working with data.

The Role:

As a Lead Full Stack Developer, you

• Design, build, and ship full-stack features across frontend, APIs, and databases.

• Lead frontend development and architecture using modern frameworks (React, Vue, Next.js).

• Build and maintain scalable backend services and APIs across our stack (Go, Ruby on Rails, Python).

• Deploy and operate services in containerized environments (Docker, Kubernetes).

• Improve performance, scalability, and reliability across applications and infrastructure.

• Participate in code reviews, technical discussions, and engineering best practices across the team.

Requirements

Must have:

• 5+ years of experience building and shipping production web applications.

• Strong TypeScript and experience with modern frontend frameworks (React, Next.js, or Vue).

• Backend experience with Go, Ruby on Rails, Python, or similar backend frameworks.

• Experience building API-driven systems and working with containerized or Kubernetes-based deployments.

• Solid experience with PostgreSQL and Redis.

• Collaborative mindset with strong ownership and product thinking.

• Fluent English (Finnish or Swedish is a plus).

Nice to have:

• Experience with Docker, containerization, and CI/CD pipelines.

• Experience working with AI-adjacent or data-intensive platforms.

• Familiarity with real-time systems (WebSockets, SSE).

What are the perks?

Greenstep Oy is a family-owned company founded in 2010 with no loans and a strong balance sheet. At Greenstep we provide high-quality services to support our customers' business and growth. Everyone at Greenstep is important to us and in addition to interesting tasks, we want to offer excellent working relationships to everyone. With us, you will be part of a work community where expertise, responsibility, and caring for others are visible.

💚 Support for your well-being. For us, everyone's well-being and well-being at work are top priorities. Our occupational health is comprehensive, and our offices are ergonomically designed. The Flex benefit and lunch discount offered through Epassi are available to you. However, the number one thing that supports your well-being at work is a sustainably built resource budget.

💚 A salary model that matches your responsibilities and experience. All Greenstep employees are also included in our Together bonus, through which we share 10% of the annual operating profit among all employees, regardless of role.

💚 Support and time for development and strengthening your skills. At Greenstep, continuous learning is at the core of what we do. Our own Greenstep Academy offers training in various topics almost weekly!

💚 Career opportunities in a growing family-owned company. We grow organically primarily with a few small exceptions where the culture has been 100% on par with ours. Because, we want to grow in a controlled manner, profitably and without compromising on quality. For us, growth means new opportunities: we can make a more positive impact on society, create new jobs, invest in the development and skills of our personnel, and enable business continuity. Our culture has developed together over the years, and our values are reflected in our everyday work.

Interested?

We have more than fifteen offices in Finland and you can find Greenstep also in Estonia, Sweden, Norway, Denmark, UK and Netherlands. With our hybrid work model, we are at least 50% of the work time at the office with our colleagues.  A large part of our team is based in Espoo but any of the Greenstep offices in Finland are a possible location for our new developer!

We look forward to receiving your application! We process applications already during the application period but be sure to apply latest by 22.3.2026.

We can't wait to hear from you!