Senior Full-Stack Engineer to Take Over Production SaaS (NestJS / React)
Core
Senior full-stack engineer to take over ownership of an existing production B2B SaaS codebase for corporate treasury and investor relations, focusing on stabilization, quality improvement, and incremental feature delivery.
Role type
Senior hands-on full-stack engineer (SaaS maintenance & evolution)
Builds
Production SaaS platform for enterprise treasury and investor relations
Domain
B2B SaaS, Enterprise Finance, Data-centric platforms
Deliverable
production ML models | product features | infrastructure
Required skills
NestJS, React, TypeScript, PostgreSQL, REST API design, Role-based access control (RBAC), CI/CD pipelines, Docker, GCP, Multi-tenant architecture, Codebase refactoring, Test coverage improvement
Preferred skills
Enterprise security mindset (GDPR, data isolation), Audit logging, System architecture thinking, Vendor collaboration
Technologies
NestJS, React, TypeScript, PostgreSQL, GCP, Docker
Responsibilities
Take over day-to-day ownership of an existing production SaaS codebase, Review architecture decisions and stabilize the platform, Deliver incremental product features and UX improvements, Ensure strong standards around security, access control, data integrity, and auditability, Support early enterprise pilots and feedback-driven iteration, Collaborate with external vendors where needed