CNTXT AI
Lead FullStack Engineer
About the role
Team Scope: Backend · Frontend · AI/ML · DevOps
Experience Level: 6–10 Years
Key Stack : Node.js (primary) · Python · TypeScript · React/Next.js
About the Role
We are looking for a seasoned AI Full Stack Tech Lead to own the technical direction of our product engineering team. Inspired by profiles like senior engineers with a track record across backend services, frontend delivery, and AI product integration — this role demands both depth and breadth. You will architect and build backend systems in Node.js, ship full-stack features using React/Next.js, integrate AI capabilities (LLMs, automation, data pipelines), and lead a cross-functional team of backend, frontend, and AI engineers. You bring a strong AI-first mindset and actively leverage AI coding tools to elevate team velocity.
What makes this role unique
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You are not just a backend engineer — you lead end-to-end: API, UI, and AI
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AI is core to the product, not a side feature — LLM integration is day-one work
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You actively use AI coding assistants (Copilot, Cursor, Claude Code) and champion them across the team
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You will shape architecture decisions that directly affect product performance and customer experience
Key Responsibilities
Backend Architecture & Engineering
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Design and own scalable backend systems using Node.js — REST APIs, microservices, event-driven architecture
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Build Python-based services for data pipelines, ML integration, and automation workflows • Architect database schemas and storage strategies across SQL (PostgreSQL) and NoSQL (MongoDB, Redis)
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Own observability: structured logging, monitoring, alerting, and performance profiling in production
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Drive CI/CD pipelines, infrastructure-as-code, and DevOps best practices across the team Full Stack Development
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Build and review frontend features using React / Next.js and TypeScript
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Define frontend architecture standards: component design, state management, API integration patterns
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Collaborate with designers and product managers to deliver polished, performant user-facing features
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Ensure frontend quality through code reviews, performance audits, and cross-browser compatibility
AI & ML Integration
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Integrate LLM APIs (OpenAI, Anthropic, open-source models) into product features
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Design and implement RAG pipelines, prompt engineering workflows, and AI-powered automation
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Work with the AI research team on model serving, embedding pipelines, and vector search (e.g. pgvector, Pinecone)
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Own reliability and cost tradeoffs for AI features in production — latency, token budgets, fallback strategies
Team Leadership
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Lead a cross-functional team of backend, frontend, and AI engineers — day-to-day technical direction
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Conduct regular code reviews, architectural reviews, and technical design sessions
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Mentor engineers at all levels; define team engineering standards and growth paths
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Own the technical roadmap and translate product requirements into clear engineering plans
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Champion AI coding tools across the team — establish best practices for AI-assisted development
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Required Skills & Experience
● Node.js — 6+ years, expert level
● TypeScript — strong, production experience
● REST API & GraphQL design
● PostgreSQL / MySQL — schema design & tuning
● AWS / GCP / Azure — cloud-native services
● CI/CD — GitHub Actions, pipelines, IaC
● AI coding tools — Copilot, Cursor, or similar
● System design & architectural decision-making
● Agile / iterative product delivery
● Cross-functional team leadership (5+ engineers)
● LLM API integration (OpenAI / Anthropic)
● Docker & Kubernetes
● MongoDB / Redis / caching strategies
● Microservices & distributed systems
● React / Next.js — full stack delivery
● Python — proficient (FastAPI, Django, scripts)
Nice to Have
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AI/ML frameworks: LangChain, LlamaIndex, Hugging Face, open-source LLMs (Mistral, LLaMA)
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Vector databases: Pinecone, Weaviate, Qdrant, or pgvector for RAG pipelines • Data engineering: ETL pipelines, data streaming (Kafka), or time-series systems • DevOps depth: Terraform, Helm, advanced Kubernetes, or observability platforms (Datadog, Grafana)
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Product sense: Experience working on AI-native or automation-first products
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Open source: Active contributions to open source projects or a visible technical portfolio
… more