Senior Full-stack Dev/Project Lead

100% remotely or in our office: Warszawa

B2B: PLN/H + VAT

We're a global, people-first software house matching ambitious developers with challenging projects. Our team of over 100 professionals helps build and improve digital businesses, software platforms, eCommerce stores, websites, apps, and everything in between. And they're good at it.

We are currently seeking a highly experienced Senior/Lead Full-stack Developer (Python + React) who enjoys real ownership and can work independently in a greenfield environment.

You'll join a compact, dedicated team building a brand-new ticket sales platform for a large Polish event agency. This is a full-time and fully remote engagement starting in January, planned for 4–6 months, with a strong chance of continuing long-term depending on the client's roadmap.

• 100% greenfield - you'll help shape architecture and key decisions from day one
• Real autonomy & decision-making - we want your ideas, not just execution
• End-to-end product scope with visible business impact
• Support from experienced Polcode's team: PDM, DevOps, QA, FE developer, plus CTO & Solutions Architect when needed.
• Strong potential for long-term continuation - further product growth, scaling, new feature development and ongoing maintenance.

Get ready to:

• Build a multi-tenant ticketing e-commerce platform
• Co-own and shape the technical architecture, standards, and development approach
• Deliver core modules: stage creator (seats), events creation and management, user and organizer dashboard, payments flow and integration, tickets generation and distribution, admin tools
• Design and implement REST APIs and integrate frontend with backend services
• Lead technical direction for the small delivery team (mentoring, code reviews, best practices)
• Implement and oversee payment gateway, e-commerce and other external service integrations
• Ensure performance, scalability, and security suitable for large event traffic
• Collaborate closely with the Product Delivery Manager, other team members and client stakeholders
• Participate in estimations, planning, and defining milestones toward the first release
• Prepare and maintain technical documentation.

What we're looking for:

• Solid commercial experience as a Full-stack Developer
• Advanced knowledge of Python in web development (FastAPI preferred)
• Very good experience with React and
• Proven track record in building products from zero to release (greenfield)
• Good understanding of backend architecture, REST APIs, and integrations
• Hands-on experience with PostgreSQL
• Ability to work independently, take ownership, and proactively propose solutions
• Great communication skills and readiness to collaborate with the Polcode and client teams
• Comfort working in regular European business hours (approx. 8-16 / 9-17 CET)
• English at a level allowing smooth work with documentation and task descriptions.

It would be great if you also have:

• Experience with AWS / cloud environments and a DevOps-friendly mindset
• Familiarity with Redis, caching, queues, and session management
• Background in e-commerce or payment-heavy systems
• Experience with modular monolith / microservices-ready design
• Knowledge of security best practices (OAuth2/JWT, TLS/SSL, GDPR/RODO compliance).

Our recruitment process:

Our recruitment process:

• People Interview – short call/video call to talk about your experience, expectations, and availability
• Skill Check – online test to verify core technical skills
• Technical & Business Final Interview – deeper technical discussion plus project/context fit.

Perks of being a #Polcoder:

• Multisport card, private medical care, life insurance, and meaningful gifts to celebrate important days
• All the necessary equipment for comfortable work
• Professional onboarding process
• We respect your private life - no overtime, no weekend jobs, work-life balance only, promise
• Work at times that suit your daily rhythm, from the place of your choice
• Your work is appreciated - we believe in the power of feedback, also the one you give us

TL;DR

• 100% remote work
• 0% nonsense

We strongly believe that putting people first makes our work better.

We encourage you to grow your career, contribute to open source, and follow your passion. We wanna do great things with you

Sounds like a match? Let's talk

If you'd like to know more or have any questions, reach out to Ela - she's always open for a quick chat.