Senior Full Stack Engineer (React/Node.js) (m/w/d)

Freelancer, Full-time · Berlin or Remote

About
At GlassDollar, we are building the leading end-to-end innovation operating system that empowers corporations to go from challenge to solution faster than ever before. By connecting startups and corporates through an intelligent software platform, we help large companies stay competitive in a rapidly evolving world.
We are now looking for a Senior Full Stack Engineer (React/Node.js) to join our fast-growing team and help us deliver powerful features that bring real value to our users.
Mission
As a key contributor to the GlassDollar OS, your mission is to develop impactful features and take ownership of complex systems. You’ll work across the entire product lifecycle — from ideation to release — in a high-paced, collaborative environment.
  • Build our core product: Collaborate with a highly motivated team to develop new features and maintain our platform.
  • Own your output: We value autonomy and accountability. Failure is accepted — but only when accompanied by learnings.
  • Automate for quality: Write robust UI tests using Playwright, and backend unit tests with Jest.
  • Participate end-to-end: You’ll be involved in every step of the development cycle:
    Idea → Scoping → Research → Planning → Development → QA/UI/UX Feedback → Release → Support → Analysis.
  • Contribute to architecture: Shape technical decisions to ensure our system is scalable and maintainable.
  • Document openly: We prioritize transparency. Share your learnings, questions, and challenges with the team.
  • Measure your impact: Track how your features perform and how users interact with them.
Your profile
You’re a hands-on, results-driven engineer with a product mindset. You thrive in dynamic teams and enjoy shipping high-quality software with real user impact.
  • 5+ years of experience building and maintaining production-grade applications in collaborative, agile teams.
  • Tech expertise:
    • Frontend: React, Apollo GraphQL, TypeScript
    • Backend: Node.js, TypeScript, Prisma, PostgreSQL
  • Automation-first mindset: You build tools and systems to avoid repeating yourself.
  • Clear communicator: You make complex ideas simple and actionable.
  • Proactive and self-driven: You don’t wait for permission to solve problems.
  • Location: Ideally based in Berlin or Sofia, or willing to spend meaningful time with the team in either location.
What we offer
  • Position type: Freelance
  • Salary: 5.000€ - 8.000€/month
  • Timezone: Preferably European
About us

GlassDollar connects startups and corporations to accelerate innovation.
We build bridges that enable startups to grow and corporations to evolve successfully through cutting-edge solutions. With data, software, and a clear mission, we make collaboration simple and effective.


Our success? It’s all about the people who make up GlassDollar.
We are more than a team – we are a community that supports, inspires, and pushes boundaries every day. Here, you can not only be yourself but also turn your ideas into reality. Openness, trust, and genuine collaboration aren’t just buzzwords for us – they are the heart of our culture.


Our values shape our daily work:
Self-Awareness: We understand our strengths, weaknesses, and energy sources and use them intentionally to achieve great things.
Entrepreneurship: We create real value – efficiently, passionately, and with the courage to go the extra mile.
Purposeful Impact: Everything we do has a clear focus and makes a meaningful difference.
Inclusion: Diversity is our strength – we bring our authentic selves and foster open, respectful collaboration.

Show us how you can complement the team.
We look forward to getting to know your motivation and mission! 
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