Senior Full-Stack Developer (Nest.js - Backend Focus)

شرح موقعیت

Senior Full-Stack Developer Backend-Focused – Node.js / NestJS – Remote - Hybrid We are an AI-focused software company building complex, production-grade software products. We are looking for an exceptionally strong senior engineer with deep backend expertise. This is a senior individual contributor role, working closely with our Technical Lead. You should be able to independently solve complex engineering problems, make sound technical decisions, and take ownership of critical parts of production systems. What We Expect Deep hands-on expertise with Node.js, NestJS, TypeScript, and PostgreSQL Proven experience designing and evolving complex production backend systems Strong system design skills, including scalability, service boundaries, caching, asynchronous processing, and failure handling Advanced PostgreSQL knowledge, including query optimisation, indexing, transactions, locking, concurrency, and data modelling Strong experience diagnosing real production issues, performance bottlenecks, race conditions, database problems, and distributed-system failures Practical experience with Redis, queues, background jobs, WebSockets, real-time systems, and event-driven architectures Ability to evaluate architectural trade-offs and make technically sound decisions with limited guidance Ability to understand a complex existing codebase, identify weaknesses, and improve its architecture and reliability Strong engineering judgement around performance, security, maintainability, and production reliability Working knowledge of React.js / Next.js; deep frontend expertise is not required AI-Assisted Engineering We actively use tools such as Codex, Claude Code, Cursor, and similar AI engineering tools. You should be able to use AI effectively while independently reviewing and validating generated code, architecture, security, performance, and technical decisions. This Role May Not Be a Good Fit If Why Niksam? Work on challenging AI-powered products, collaborate with a strong technical team, and take meaningful ownership of complex engineering problems in a fully remote environment.