Senior Backend Engineer – Platform & Integrations

This is a fully remote position, open to applicants in Germany.

📋 Description

• Assume technical leadership for the ongoing development of the backend and guide the product’s technical trajectory.

• Make architectural choices and guarantee stable operations.

• Create a backend that is capable of scaling with an increasing number of customers, users, and devices.

• Implement effective database access, horizontal scaling, caching, and relevant load testing.

• Develop retry mechanisms featuring exponential backoff and jitter, idempotency, timeouts, circuit breakers, and rate limiting.

• Ensure quick response times while enhancing logging, metrics, and tracing.

• Replace outdated data access methods with clear REST endpoints and migrate business logic into the backend.

• Assist in the development of the integration platform for OpenID Connect, SAML, and SCIM.

• Review code and outputs from AI agents.

• Provide support to frontend and mobile teams regarding API design.

• Establish the backend direction and offer technical leadership.

⛳️ Requirements

• Multiple years of professional experience in backend development using TypeScript/Node.js or Python for production SaaS applications.

• Strong expertise in API design (REST, OpenAPI) and relational databases, preferably PostgreSQL.

• Experience with systems functioning under load, including retries, idempotency, timeouts, and backpressure.

• Proven experience in taking technical ownership of a product or system.

• Proficient in utilizing AI tools in development; capable of understanding, reviewing, and taking responsibility for generated code.

• Eagerness to learn new technologies.

• Fluency in both written and spoken German and English.

• Nice to have: Experience with Fastify, Drizzle, Zod, and Python/FastAPI.

• Nice to have: Familiarity with circuit breakers, bulkheads, queues, and the Outbox pattern.

• Nice to have: Knowledge of multi-tenancy and Row-Level Security.

• Nice to have: Understanding of OIDC, OAuth 2.0, SAML, or SCIM.

• Nice to have: Experience with Kubernetes, Argo CD, observability, and load testing.

• Nice to have: Basic knowledge of anonymized product analytics and A/B testing.

• Nice to have: Fundamental understanding of PKI and X.509.

🏝️ Benefits

• Latest MacBooks or Windows Surfaces, also available for personal use.

• Company credit card along with expense management software.

• Edenred City Card providing €50 per month.

• 30 days of annual leave.

• Trust-based working hours.

• Options for remote work.

• Modern offices located in Münster and Cologne.

• Opportunities for professional certification.

• Training in leadership and soft skills.

• Access to LinkedIn Learning and Udemy.

• Meaningful engagement in projects that have social impact.

• A high degree of ownership and the ability to shape your work.

• An interdisciplinary team environment.

• A culture focused on technological excellence and engineering.

• Participation in strategic decisions and business development.

• Short decision-making processes without corporate red tape.

• The chance to influence customer relationships, business areas, and partnerships.