Full Stack Engineer

Flow Vector; India; On-site; INR 900,000 - 1,500,000; Full time

Job summary

Flow Vector in India is seeking a skilled Full Stack Developer with strong Node.js and Next.js experience to join our engineering team. You will design APIs, build features, and own projects from requirements to production delivery.

You will work across the stack, collaborating with product managers and designers in an agile environment, and contribute to architecture decisions, testing, debugging, and shipping reliable software for real customers.

Qualifications

• 4+ years of professional experience with Node.js and TypeScript
• Strong Next.js experience with App Router/Pages Router, SSR/SSG, API routes
• Experience designing REST APIs and async programming
• Experience with PostgreSQL, MySQL, MongoDB or similar
• Experience with vector databases for RAG use cases
• Familiarity with Git-based workflows and CI/CD pipelines
• Cloud exposure (AWS, Azure, or GCP) and debugging in cloud environments
• Ability to own projects end-to-end and deliver results

Responsibilities

• Design, build, and maintain backend services using Node.js and TypeScript
• Build frontend interfaces with Next.js and TypeScript
• Design and implement REST APIs and third-party integrations
• Work with relational and NoSQL databases; optimize queries and schemas
• Write unit and integration tests and participate in code reviews
• Debug production issues across the stack and drive fixes
• Collaborate with designers, PMs, and engineers in agile sprints
• Contribute to architectural decisions and tooling
• Take end-to-end ownership from planning to post-launch support
• Deliver measurable outcomes on agreed timelines and communicate risks

Skills

Node.js

TypeScript

Next.js

REST API design

Database design

Distributed systems

Testing

Code review

Cloud infrastructure

Debugging

Team collaboration

Ownership

Education

Bachelor's degree in a relevant field

Tools

LangChain

LangGraph

Langfuse

Pinecone

Weaviate

pgvector

Kubernetes

Docker

Job description

We're looking for a Full Stack Developer with strong Node.js and Next.js experience to join our engineering team. You'll work across the stack — building APIs, designing data models, and shipping user-facing features — on production systems used by real customers. The successful candidate must be accountable, responsible, result-driven, and able to take complete ownership of projects from requirements through production delivery.

RESPONSIBILITIES

• Design, build, and maintain backend services using Node.js and TypeScript.
• Build responsive, accessible frontend interfaces using Next.js and TypeScript.
• Design and implement REST APIs and integrate with third-party services.
• Work with relational and/or NoSQL databases — schema design, queries, performance tuning.
• Write unit and integration tests; participate in code review.
• Debug and resolve production issues across the stack.
• Collaborate with designers, product managers, and other engineers in an agile environment.
• Contribute to technical decisions on architecture, tooling, and best practices.
• Take end-to-end ownership of assigned projects: planning, estimation, development, testing, deployment, documentation, and post-launch support.
• Deliver measurable outcomes on agreed timelines; proactively communicate risks, unblock issues, and take responsibility for quality and results

REQUIRED SKILLS

• 4+years of professional experience with Node.js and TypeScript.
• Strong Next.js experience required — App Router or Pages Router, SSR/SSG, API routes, React component architecture, hooks, state management (Redux, Zustand, or similar).
• Solid understanding of REST API design and asynchronous programming (promises, async/await, event-driven patterns).
• Experience with at least one major database (PostgreSQL, MySQL, MongoDB, or similar).
• Experience with vector databases (Pinecone, Weaviate, pgvector, Azure AI Search, or similar) for retrieval-augmented generation (RAG) use cases.
• Experience with agent orchestration frameworks — LangChain and LangGraph.
• Experience with Langfuse or a similar LLM observability/tracing tool.
• Familiarity with Git-based workflows, code review, and CI/CD pipelines.
• Comfortable working with cloud infrastructure (AWS, Azure, or GCP) — deploying and debugging services in a cloud environment.
• Strong debugging, problem-solving, written communication, accountability, and results-oriented execution.

EDUCATION & OWNERSHIP REQUIREMENTS

• Must have completed a degree or formal educational program at an Indian Institute of Technology (IIT), Indian Institute of Management (IIM), a Symbiosis institution, or Birla Institute of Technology and Science (BITS Pilani).
• Must demonstrate personal responsibility, a results-driven mindset, and proactive ownership of deliverables.
• Must be capable of independently driving projects end-to-end, including stakeholder coordination, delivery, and resolution of production issues.

NICE TO HAVE

• Experience with container orchestration (Kubernetes, Docker).
• Experience with message queues / event-driven architectures (Service Bus, SQS, Kafka, RabbitMQ).
• Familiarity with OAuth 2.0 / OIDC and enterprise identity providers (Microsoft Entra ID, Okta).
• Testing framework experience (Jest, Playwright, Cypress).

GOOD TO HAVE: AI / AGENTIC PLATFORM EXPERIENCE

We're increasingly building systems that integrate AI agents into real business workflows, so the following is a genuine plus, though not required:

• Hands-on experience calling LLM APIs in production (OpenAI, Azure OpenAI, Anthropic, or similar) — token-based billing, streaming responses, prompt/response handling.
• Experience building systems with AI guardrails — content safety checks, cost controls, human-in-the-loop approval steps.
• Experience integrating with enterprise systems of record (SAP, ServiceNow, or similar) as part of a connector/integration layer.
• Familiarity with durable/long-running workflow patterns (Azure Durable Functions, Temporal, or similar).