The Role

We're hiring a Senior Backend Software Engineer (TypeScript) to help us scale and evolve our core systems. You'll work closely with AI engineers, frontend devs, and product leads to build the APIs, services, and infrastructure powering our agentic workflows.

This is a hands-on role for someone who knows how to build enterprise-grade backends using modern JavaScript/TypeScript stacks. You'll lead major technical efforts, make architecture decisions that scale, and help us stay fast, reliable, and resilient as our user base grows.

What You'll Do & Own Design, build, and maintain backend services using TypeScript (preferably NestJS ) Develop and document robust REST and GraphQL APIs used by frontend and AI components Work with PostgreSQL and Redis to manage structured and real-time data Collaborate across teams to integrate AI pipelines, inference systems, and third-party APIs Own backend performance, reliability, observability, and dev workflow improvements Drive engineering excellence via clean code, code reviews, and strong documentation Evolve our authentication, authorization, and permissioning systems Contribute to architecture decisions with a long-term view on scale and maintainability You Might Be a Fit If You... Have 6+ years of experience building production-grade backend systems Are highly proficient in JavaScript/TypeScript , with deep knowledge of Node.js and NestJS Have strong experience designing and consuming RESTful and GraphQL APIs Are comfortable with PostgreSQL , Redis , and caching strategies Know your way around Docker , CI/CD pipelines , and version control with Git Value clean architecture, modular codebases, and well-structured data models Thrive in a high-ownership, fast-paced startup environment with evolving priorities Bonus Points Experience building secure, scalable auth systems (OAuth2, SSO, etc.) Familiarity with async patterns, workers, or event-driven systems (e.g., BullMQ, RabbitMQ) Exposure to AI/ML tooling, vector databases, or real-time inference workloads Experience in B2B SaaS or enterprise-scale backend platforms What's in It for You Join a tight-knit engineering team shipping fast and building with ambition Work on products used by real-world recruiters, analysts, and decision-makers Be part of a mission-driven company redefining how humans and AI collaborate Competitive salary, meaningful early-stage equity, and flexible work arrangements Zero bureaucracy, high trust, and a strong culture of ownership and technical excellence

Calibro Corp. is a professional staffing and services firm specializing in the technology areas of Project Management, Business Analysis, Infrastructure and Development. We offer great benefits to both salaried and hourly employees including medical, dental, vision, 401k with match. Calibro Corp is committed to providing the highest levels of professional services to job seekers and employers. Reach out to our staffing specialists to experience the difference!