Full-Stack Engineer (Mid-Senior)

• Design and implement REST APIs, integrate with data stores and internal services.
• Build reliable data flows and background jobs, focus on performance and monitoring.
• Contribute to event-driven components and partner integrations.
• Uphold security and privacy by default; collaborate with product/security on least-privilege access and sane defaults.
• Own the lifecycle: clarify scope, design, implement, monitor, iterate

Do you have experience in gRPC?, Do you have a Master's degree?, * BSc/MSc in CS/SE (3+ years building production web software with ownership) or 5+years equivalent experience.

• Comfortable working across the stack (frontend + backend), with deeper strength in atleast one area.
• Solid grasp of common software design patterns and their trade-offs.
• Solid understanding of client-server fundamentals, HTTP, and computer-network basics,familiarity with gRPC and WebSockets.

Frontend & Backend

• Experience shipping with a modern SSR/front-end framework Next.js/React.js (orequivalent e.g., Nuxt.js/Vue.js).
• Hands-on with a Node.js/Bun backend framework NestJS (or equivalent e.g., Express, orFastify), with knowledge of routing, CORS, validation, and testing.
• Proficient in JavaScript/TypeScript, HTML/CSS (with some knowledge of Tailwind CSS), and comfortable in Python.
• Proficient with software testing concepts (e.g., test types, mocking), and can apply theseconcepts with testing frameworks like Jest, Cypress, Playwright, PyTest, etc.
• Practical experience designing and consuming APIs; understanding versioning, pagination, and error contracts.
• Hands-on with authentication & authorization (SSO/OIDC/OAuth2), session/JWThandling, and role/permission models (RBAC/ABAC).

Databases

• Experience with both relational (e.g., PostgreSQL/MySQL) and document/NoSQLdatabases (e.g., MongoDB), including indexing and data modeling trade-offs.

Systems

• Experience with at least one major public cloud (AWS, Azure, or GCP).
• Containers (e.g., Docker, Podman).
• CI/CD (e.g., GitHub Actions, GitLab CI) with automated pipelines.
• Baseline observability skills (logging/metrics, basic dashboards) and performance-minded development

Soft-skills

• Ownership & initiative: You identify problems, propose pragmatic solutions, and drivethem to completion.
• Communication: Clear, direct, and respectful (written and verbal) with a bias to clarifyscope and surface risks early.
• Collaboration: Works well with product, design, and data/security partners; gives andreceives feedback constructively.
• Judgment: Balances speed and quality; knows when to iterate vs. when to harden.
• Reliability: Transparent about blockers; follows through on commitments.
• Learning mindset: Curious, reflective, and comfortable stepping outside your comfortzone.

Nice-to-Haves

• Working knowledge of at least one compiled language (e.g., Go, C#, C++, Rust, or Java).
• Exposure to LLM agentic systems with their components (e.g., vector databases,retrieval/RAG, MCP, orchestration frameworks, knowledge graphs).
• Comfort with infrastructure/architecture topics (scalability, resiliency, security).
• Knowledge of Infrastructure-as-Code tools (e.g., Terraform, OpenTofu).
• Experience implementing observability and monitoring (metrics, logs, traces, alerting).
• Interest in self-hosting and developer tooling; ability to evaluate and operate open-source systems.
• Dutch language proficiency.