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

Designing, building, and maintaining high-performance, user-friendly web applications

Writing clean, scalable, and testable code, and promoting best practices through code reviews and team standards

Evaluating and implementing new tools and technologies to boost performance and development efficiency

Planning and implementing new features in close collaboration with the client and Project Manager

Collaborating with cross-functional teams to ensure seamless integration and scalability

Requirements

Factors that make you a great fit

At least 5 years of commercial experience in software development

Proficiency in Python/Node.js and React

Experience working in cloud environments, preferably AWS

Comfortable working with Django or FastAPI; Next.js or Remix; TypeScript; React, and its ecosystem

Familiarity with DevOps practices and tools, including Git, CI/CD, monitoring, IaaC, Docker

Strong communication and collaboration skills - you’ll have to be able to talk to clients directly

Solid understanding of the end-to-end development cycle, including backend, frontend, and infrastructure

Familiarity with SQL and NoSQL databases

Analytical mindset and strong problem-solving skills

Self-driven and curious by nature – you're proactive, eager to learn, and genuinely passionate about technology

Good command of English (min. B2), both spoken and written

Nice to have

Knowledge of LangChain is a big plus

Experience in GCP/Azure/Vercel/Digital Ocean

Some knowledge of ReactNative

What we offer

B2B or employment contract

26 paid days off + bank holidays on a B2B contract

Remote first approach (with the opportunity to work from our Poznan HQ) with flexible working hours

Home office equipment (chair / monitor / MacBook)

Health insurance: Luxmed (with a dentist) or Compensa

Annual salary review & salary market review twice a year

Open feedback process

Team retreats and many internal initiatives

A library of games and books to keep your brain (or inner geek) happy

Internal crowdfunding platform - wishlist (prize for the best internal employer branding campaign)

Integration budget, anniversary gifts & much more

Salary

B2B contract: 20000 - 26000 PLN net + VAT

Contract of employment: 17400 - 21580 PLN gross

Recruitment stages

HR call (30 mins)

Technical interview (1h)

Pair programming (1,5h)

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!