Full Stack Developer

At Apptension, we craft innovative digital products for startups, brands, and agencies worldwide. With a high-performing team of 30+ experts in development and product management, we turn bold ideas into lasting digital experiences. Over the past decade, we've collaborated with companies like Netflix, Spotify, Uber, and Universal - delivering solutions that combine creativity with technical precision. Driven by a culture of partnership, transparency and continuous innovation, we don’t just build products - we build what’s next.

What you’ll be doing:

1. Designing, building, and maintaining high-performance, user-friendly web applications
2. Writing clean, scalable, and testable code, and promoting best practices through code reviews and team standards
3. Evaluating and implementing new tools and technologies to boost performance and development efficiency
4. Planning and implementing new features in close collaboration with the client and Project Manager
5. Collaborating with cross-functional teams to ensure seamless integration and scalability

Factors that make you a great fit:

1. At least 5 years of commercial experience in software development
2. Proficiency in Python/Node.js and React
3. Experience working in cloud environments, preferably AWS
4. Comfortable working with Django or FastAPI; Next.js or Remix; TypeScript; React, and its ecosystem
5. Familiarity with DevOps practices and tools, including Git, CI/CD, monitoring, IaaC, Docker
6. Strong communication and collaboration skills - you’ll have to be able to talk to clients directly
7. Solid understanding of the end-to-end development cycle, including backend, frontend, and infrastructure
8. Familiarity with SQL and NoSQL databases
9. Analytical mindset and strong problem-solving skills
10. Self-driven and curious by nature – you're proactive, eager to learn, and genuinely passionate about technology
11. Good command of English (min. B2), both spoken and written

Nice to have:

1. Knowledge of LangChain is a big plus
2. Experience in GCP/Azure/Vercel/Digital Ocean
3. Some knowledge of ReactNative

What we offer:

1. B2B or employment contract
2. 26 paid days off + bank holidays on a B2B contract
3. Remote first approach (with the opportunity to work from our Poznan HQ) with flexible working hours
4. Home office equipment (chair / monitor / MacBook)
5. Health insurance: Luxmed (with a dentist) or Compensa
6. Annual salary review & salary market review twice a year
7. Open feedback process
8. Team retreats and many internal initiatives
9. A library of games and books to keep your brain (or inner geek) happy
10. Internal crowdfunding platform - wishlist (prize for the best internal employer branding campaign)
11. Integration budget, anniversary gifts & much more

Salary:

1. B2B contract: 20000 - 26000 PLN net + VAT
2. Contract of employment: 17400 - 21580 PLN gross

Recruitment stages:

1. HR call (30 mins)
2. Technical interview (1h)
3. Pair programming (1,5h)
4. Final decision/feedback (within 3 business days)

👉 If you want to know a bit more about how we work, take a look at our portfolio and blog 📖

Excited to build great things with a team that values creativity, growth, and real impact? Let’s talk!