Senior Backend Developer

Pynea is a challenge-based interview intelligence system, powered by AI. We help companies hire faster and smarter by replacing CV-noise with evidence from real work and real human capability.

We’re in full build mode towards launch - and we operate like a top-tier creative engineering studio: small team, high taste, high ownership, no corporate theatre.

We’re hiring a Senior Backend Engineer to build the enterprise backbone: high-concurrency APIs, event-driven systems, and reliability foundations that turn messy hiring inputs into trusted signal : fast, secure, GDPR-safe, and ready to scale from day one. If you love turning evolving intent into production-grade systems that don’t flinch under load, you’ll thrive here.

You’ll own the enterprise backbone across a few high-impact areas:

Scalable Graph

QL APIs, integrations, event-driven systems, monitoring/logging, error handling, and documentation that scales beyond you.

• High-concurrency APIs and reliability mechanisms (retries, idempotency, queues)
• Event-driven systems that don’t drop data
• Dashboards/reporting surfaces that remain consistent under load
• Cloud-ready architecture across GCP (with minimal AWs for asset management)
• Systems designed to ship fast, stay robust, and scale cleanly

• Features ship fast without hacks
• The system scales from 10 → 10,000+ users with confidence
• Reliability is visible: monitoring, alerts, error tracking, runbooks
• Security is default: permissions, audit trails, GDPR-safe practices
• Clear scoreboard: uptime, latency, error rates, queue health, enterprise readiness metrics

You see failure modes early. You ship production-grade systems quickly. You make sharp trade-offs without sacrificing reliability. You communicate crisply async (short Looms, diagrams, notes). You enjoy building enterprise systems that teams can depend on.

• NodeJS
• Graph
  
  QL (NestJS)
• Data structures
• Understanding of complexity principles and correct approaches
• Experience with AI and LLMs (including but not limited to Gemini)
• Strong analytical and problem-solving skills in a fast-changing environment
• Comfortable operating in a sprint with incomplete context and tight deadlines

• Code quality & maintainability - Writes readable, consistent, and well-structured code
• Understands trade-offs between speed of delivery and long-term maintainability
• Comfortable working in a shared codebase with established guidelines
• Testing mindset - Understands the value of unit, e2e, and regression tests to minimise disruption to the frontend apps
• Writes testable code and doesn’t rely solely on manual testing
• Collaboration & ownership - Can work closely with frontend, product, and design teams
• Takes ownership of features end-to-end
• Comfortable giving and receiving code reviews