Junior Node.js/NestJS developer

Location: Warsaw, Poland / Hybrid
Format: Full-time
Type of contract: B2B
Seniority: Middle

🧠 About Us
At EPC Network, we’re not just a digital marketing company; we’re a platform for career transformation and personal growth. Our people-first approach shapes our corporate culture, fostering a team of passionate, smart, and energetic individuals who strive to grow professionally in an international, fast-paced environment.
We believe our Team is the foundation of our success, and now we’re looking for a Node.js / NestJS Developer to join our Technology team.

|🎯 Job Description
As a Junior Node.js / NestJS Developer, you’ll be responsible for building and maintaining high-load backend services and designing stable microservice architectures.
You will work closely with frontend developers, DevOps engineers, and analysts, reporting directly to the Tech Lead. This role requires strong backend expertise, clean architecture thinking, and a performance-oriented mindset.

🔧 Key Responsibilities

• Develop and maintain backend services using NestJS / TypeScript
• Design and implement REST / GraphQL APIs
• Optimize application performance, scalability, and security
• Write unit and integration tests
• Refactor and support the existing codebase
• Collaborate with cross-functional teams to deliver high-quality solutions

📌 Requirements

• 2+ years of commercial experience with Node.js
• 1+ year of practical experience with NestJS
• Strong knowledge of TypeScript (generics, decorators, advanced typing)
• Experience with PostgreSQL / MySQL and ORM frameworks
• Solid understanding of OOP, SOLID principles, and Design Patterns
• Experience with Git and version control systems
• Understanding of microservice architecture and asynchronous processing (RabbitMQ / Kafka)
• English level: Intermediate+

📌 Nice to Have

• Experience with GCP or Azure
• Knowledge of CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins)
• Hands-on experience with ElasticSearch, Redis
• Background in building high-load systems

🤝 What it means to be part of our Team
Your professional and personal development:
🙋 Multinational and intercultural experience
📚 Corporate library
💪 A world-class team to work with
🎓 Growth opportunities
💻 Cutting-edge frameworks and technologies
Well-being:
💰 Competitive salary
🎳 Common team activities (football, basketball, tennis, board games, and more)
🏖️ 21 paid vacation days & 14 paid sick leaves
🧘 Work-life balance
Working environment:
🏢 Cozy office in the heart of Warsaw
🥪 Coffee, tea, sweets, fruits, and more snacks
🧐 Adequate teammates

💌 Interested?
We’re looking for someone who enjoys clean architecture, high-load systems, and backend engineering challenges.

Please submit your CV in English.
Make sure to include your Telegram nickname in the cover letter.

Diamond, please, call out! We are waiting for you 💎