Senior Full Stack Engineer (Node.js, React) Job - Apply Now

Devsinc; Lahore; On-site; PKR 2,400,000 - 3,600,000; Full time

Job summary

Devsinc is seeking a Senior Full Stack Engineer to architect, build, and scale modern web apps. You will own end-to-end delivery from design to production, design REST/GraphQL APIs, and mentor engineers.

You will integrate LLM-powered features with AI/ML teams, work with AWS/GCP/Azure, Docker/Kubernetes, and drive quality with modern testing tools. A strong emphasis on collaboration with stakeholders is required.

Qualifications

• 5+ years of professional software engineering experience.
• Strong expertise in JavaScript/TypeScript and modern front-end frameworks.
• Hands-on experience with Node.js, MongoDB, and cloud deployment.

Responsibilities

• Architect, build, and scale full-stack web apps with modern stacks.
• Lead end-to-end feature development from design to production.
• Design and own RESTful and GraphQL APIs and API contracts.
• Develop shared components and design systems; translate UI designs.
• Deploy and operate services on cloud platforms using containers and CI/CD.
• Integrate LLM-powered features and collaborate with AI/ML engineers.
• Mentor junior/mid-level engineers and participate in code reviews.
• Present technical decisions to stakeholders and leadership.
• Participate in on-call rotations and production incident response.

Skills

JavaScript

TypeScript

React

Next.js

Angular

Node.js

Express/NestJS

REST APIs

GraphQL

UI/UX responsive

Tools

MongoDB

PostgreSQL/MySQL

Docker

Kubernetes

CI/CD

AWS/GCP/Azure

GitHub Copilot/Jest/Playwright/Cypress

Job description

We are looking for a Senior Full Stack Engineer to architect, build, and scale web applications using Node.js, MongoDB, React/Next.js, and Angular. You will lead features from technical design to production support, integrate LLM-powered features alongside AI/ML engineers, and mentor junior and mid-level engineers. You will also present technical decisions and progress to stakeholders, clients, and leadership.

Key Responsibilities

• Architect, build, and scale full-stack web applications using Node.js, Express/NestJS, MongoDB, React/Next.js, and Angular.
• Lead feature development end to end, from technical design and estimation through deployment and production support.
• Design and own RESTful and GraphQL APIs, including Backend-for-Frontend (BFF) layers, and shape API contracts with product and platform teams.
• Build and maintain shared component libraries and design systems (Tailwind, Storybook), and turn Figma designs into pixel-perfect, accessible UI.
• Deploy and operate services on AWS, GCP, or Azure using Docker, Kubernetes, serverless functions, and CI/CD pipelines.
• Integrate LLM-powered features such as AI assistants, semantic search, and RAG pipelines alongside AI/ML engineers.
• Use AI-assisted development tools (Claude Code, Cursor, GitHub Copilot) to speed up delivery while keeping quality high.
• Mentor junior and mid-level engineers through code reviews, pair programming, and technical direction.
• Present technical decisions, trade-offs, and progress clearly to stakeholders, clients, and leadership.
• Take part in on-call rotations and incident response for production systems.

Requirements

• 3 to 6 years of professional software engineering experience, with strong full-stack delivery.
• Expert-level JavaScript and TypeScript, plus strong HTML5, CSS3, and responsive design.
• Production experience with Node.js (Express or NestJS) and MongoDB, with exposure to PostgreSQL or MySQL.
• Strong hands‑on experience with React (Next.js preferred) and working proficiency in Angular.
• Solid understanding of system design, microservices, caching (Redis), and message queues (Kafka, RabbitMQ, SQS).
• Hands‑on cloud experience (AWS, GCP, or Azure), including containerization with Docker.
• Strong testing habits: unit, integration, and E2E testing with Jest, Playwright, or Cypress.
• Understanding of authentication and security standards: OAuth 2.0, OIDC, JWT, and OWASP best practices.
• Proven ability to lead development efforts, own deliverables, and drive a team toward deadlines.

Skills

Technical Skills

• JavaScript and TypeScript
• Node.js (Express/NestJS) and MongoDB
• React, Next.js, and Angular
• REST and GraphQL APIs, including BFF layers
• Tailwind CSS and Storybook
• System design, microservices, Redis, and message queues
• AWS, GCP, or Azure with Docker, Kubernetes, and CI/CD
• Jest, Playwright, or Cypress testing
• OAuth 2.0, OIDC, JWT, and OWASP security practices
• LLM integration and AI‑assisted development tools

Soft Skills

• Excellent communication, explaining and defending technical choices to technical and non‑technical audiences
• Representing the team in client and stakeholder meetings
• Leading development efforts and mentoring engineers
• Ownership, prioritization, and attention to detail
• Self‑starter in a fast‑paced environment

Nice to Have

• React Native or Expo experience shipping apps to the App Store and Google Play.
• Experience integrating LLM APIs (OpenAI, Anthropic, Gemini) or building RAG and vector search features (Pinecone, pgvector).
• Infrastructure as Code (Terraform, AWS CDK) and observability tools (Datadog, Grafana, Sentry).
• Experience with WebSockets and real‑time systems.
• AWS, GCP, or Azure certifications.
• Startup or SaaS product experience, or client‑facing consulting experience.
• Open‑source contributions or a strong public GitHub portfolio.