Middle Back-end Developer
Wetelo
Bremen, Germany
6 days ago
Role details
Contract type
Permanent contract Employment type
Full-time (> 32 hours) Working hours
Regular working hours Languages
English Experience level
IntermediateJob location
Bremen, Germany
Tech stack
API
Artificial Intelligence
Continuous Integration
Database Design
DevOps
Payment Systems
PostgreSQL
MongoDB
Node.js
Query Optimization
Redis
Systems Integration
TypeScript
Backend
NestJS
REST
Docker
Job description
We are looking for a Middle Back-end Developer (Nest.js / Node.js) to join our team. This role is a great fit for a developer who has experience building projects from scratch and is confident in designing clean, maintainable, and scalable backend architecture.
What You Will Work On
- Designing and developing REST APIs
- Building admin panels and internal tools
- Integrations with payment systems and third-party services
- Integrations with AI tools and external APIs
- Backend architecture setup from scratch
- Database design and optimization
Technical Stack
- Nest.js
- Node.js
- TypeScript
- PostgreSQL
- MongoDB
Requirements
Do you have experience in TypeScript?, Must have:
- 2-4 years of commercial back-end development experience
- Strong experience with Node.js and TypeScript
- Practical experience with Nest.js
- Experience building projects from scratch (architecture design, structure setup, environment configuration)
- Experience working with PostgreSQL and MongoDB
- Experience designing REST APIs
- Understanding of authentication and authorization mechanisms (JWT, role-based access)
- Experience integrating payment systems or third-party services
- Knowledge of database design and query optimization
- Experience using AI tools in daily development workflow (e.g., Claude Code, Codex or similar)
- Clean, maintainable, and scalable code practices
- English level: B1 or higher
Nice to Have
- Understanding of caching strategies (Redis or similar)
- Basic DevOps understanding (Docker, CI/CD)
Benefits & conditions
supportive and comfortable working environment;
- free online speaking club to practice your English;
- variety of training and self-development opportunities;
- fancy team-building events and corporate parties;
- social security package and other perks.
Hiring Process Pre-screen interview with a Recruiter Technical interview Final interview with the company's CEO References Job Offer
About the company
Wetelo is a software development company building custom SaaS products since 2010. We partner with startups and growing businesses to design and develop scalable, business-driven products, taking full ownership from idea to long-term support.