Senior Full Stack Engineer

A well-funded AI SaaS company is hiring a Senior Full Stack Engineer to build a platform for governance, risk and compliance teams. The role involves full stack development with TypeScript, Node.js, React, GraphQL, and AWS, focusing on complex workflows, integrations, and production reliability.

• Building full stack product features using TypeScript, Node.js, React, GraphQL and AWS
• Designing backend services that support workflow automation, evidence collection and compliance operations
• Working with queues, background jobs, retries, idempotency, dead-letter handling and async processing
• Building integrations with customer systems and third-party APIs where reliability, error handling and observability matter
• Designing for multi-tenant SaaS environments, including tenant boundaries, permissions, data integrity and workflow fairness
• Creating React product experiences that reflect real backend state, including pending, failed, retrying and completed workflow states
• Improving system visibility through structured logging, metrics, tracing, alerts and production diagnostics
• Helping shape technical decisions around architecture, delivery speed, maintainability and operational risk
• Using AI thoughtfully across product capability and engineering workflow

• Strong TypeScript and Node.js experience in commercial product environments
• Solid React experience, ideally building real workflow-heavy product interfaces
• GraphQL experience, including API design and data modelling considerations
• AWS experience across services such as Lambda, SQS, SNS, DynamoDB, EventBridge, Step Functions, ECS or similar
• Experience designing async workflows, queues, workers, retries, backoff strategies, idempotency and DLQs
• Experience integrating with external APIs, customer platforms, SaaS tools or third-party data sources
• Strong understanding of production failure modes: slow APIs, duplicate events, bad payloads, rate limits, partial failures and data inconsistency
• Ability to explain system design decisions clearly, including trade-offs, constraints and why one approach was chosen over another
• Product ownership mindset, with the ability to connect technical choices back to user impact and business workflow
• Comfort working in a small, senior engineering team where ownership is high and ambiguity is normal

• Up to €120,000
• Remote in Holland, once per quarter meetups in Berlin
• Senior engineering role in a well-funded AI SaaS business
• Modern TypeScript, Node.js, React, GraphQL and AWS stack
• High ownership across product, architecture and implementation
• Complex workflow, integration and reliability problems
• Small engineering team with strong technical influence