Backend Engineer - Internship

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Description

Certa is the AI-first third-party operating system. Enterprises, from the Fortune 500 to fast-growing startups, use our no-code platform to onboard, assess, and monitor their vendors, suppliers, and partners across risk, compliance, and ESG. We have processed over 10 million entities for 100,000+ users across 120+ countries, and are backed by Fin Capital, Vertex Ventures, and Point72 Ventures. This is a paid 6-month internship with the opportunity to transition into a full-time role at the end based on performance. Joining our Platform team, you won't be handed make-work. From your first week you'll build and ship backend services that power real workflows used by Fortune 500 companies, with real ownership and mentorship from engineers who've built at scale. What You'll Do Build & ship APIs: Build and ship REST/GraphQL APIs that power real workflows used by Fortune 500 companies. Write production-ready code: Write clean, tested, production-ready code, not just prototypes. Own issues end-to-end: Debug and own issues from the database query to the API response. Design data models: Work directly with product and frontend engineers to design data models and contracts. Review & own: Participate in code reviews, giving, not just receiving, feedback, and gradually own a service or subsystem sooner than you'd think. What You'll Need Strong fundamentals: Data structures, algorithms, system design basics, and databases. js, Go, or Java. Real project experience: You've built something real (a side project, open-source contribution, or hackathon win) touching several of: a relational database (schema design, queries, indexes), authentication (JWT, sessions, OAuth, implemented, not just read about), a cache layer (Redis or similar), an API with real error handling (400s, 401s, 500s, not just 200s), a message queue or background job (Kafka, SQS, Celery, or a simple cron), and deploying something

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