Senior Software Engineer - NestJS/Node.js

Role Overview :

We are seeking a highly skilled Senior Backend Engineer with strong expertise in NestJS, Node.js, and TypeScript to architect, build, and optimize backend systems for scalable, secure, and high-performance applications.

You will work closely with cross-functional teams to design and implement backend solutions, manage cloud infrastructure, and ensure robust CI/CD pipelines.

This role demands deep technical knowledge, hands-on development expertise, and an ability to mentor mid/junior developers while ensuring adherence to best practices in code quality, security, scalability, and DevOps automation.

Key Responsibilities :

Backend Development :

- Write high-performance, modular, and maintainable TypeScript code.

- Implement business logic, data modeling, and service orchestration.

Database Management :

- Write optimized SQL queries, indexes, and stored procedures.

- Handle data migrations, replication, and backup strategies.

Cloud & Infrastructure :

- Implement and maintain infrastructure automation with Terraform and Ansible.

- Manage Kubernetes clusters for deployment scalability.

CI/CD & DevOps :

- Automate build, test, and deployment workflows.

- Ensure zero-downtime deployments and environment parity.

Security :

- Manage IAM roles and permissions in cloud environments.

- Implement secure API authentication & authorization (JWT, OAuth2).

Team Collaboration & Mentorship :

- Review code for performance, security, and maintainability.

- Mentor junior developers and guide best practices.

Qualifications :

- 4 to 6 years of backend development experience with Node.js/NestJS.

- Strong knowledge of cloud infrastructure (GCP preferred, AWS/Azure is a plus).

- Proven experience designing and deploying production-grade CI/CD pipelines.

- Hands-on Kubernetes, Terraform, and Ansible experience.

- Excellent understanding of relational and NoSQL database performance tuning.

- Strong problem-solving skills and debugging capabilities.

- Excellent communication and mentoring skills.

Nice-to-Have Skills :

- Experience with Redis, RabbitMQ, or Kafka.

- Exposure to microservices architecture and distributed systems.

- Experience with automated testing frameworks (Jest, Mocha, Cypress).

- Familiarity with observability tools (Prometheus, Grafana, ELK).

Benefits :

- A responsible position in a fast-growing and highly innovative start-up.

- An agile and diverse team with colleagues from all over the world, working with our main office in Germany.

- English-speaking open work environment, with flat hierarchies and short decision-making paths.

- Creative freedom for own ideas, projects, and personal development.

- Quarterly awards for recognizing the hard work and talent within the team.