Senior Software Engineer ( Node.js, React.js)
Strategic Systems International3 hours ago
Lahore, PakistanSenior
Responsibilities
- Lead the design, development, and delivery of production web applications using Node.js, React, Next.js, and TypeScript.
- Own features end to end across frontend and backend systems, including APIs, data models, architecture, performance, and testing.
- Serve as the primary technical contact for clients by discussing requirements, explaining trade-offs, estimating work, and reporting progress.
- Design, build, and consume REST and GraphQL APIs, including Apollo Server and Apollo Client.
- Design schemas and optimize queries across PostgreSQL, MySQL, MongoDB, and Redis.
- Implement authentication and authorization using JWT, OAuth 2.0, and sessions while following API security practices.
- Build accessible, responsive interfaces and reusable components and design systems from Figma designs using Storybook.
- Maintain code quality through reviews, unit tests, integration tests, component tests, and end-to-end testing.
- Improve frontend, API, and database performance while meeting WCAG standards.
- Mentor engineers, lead technical discussions, document architecture decisions, and help the team use AI-assisted development tools effectively.
Requirements
- Bachelor’s degree in computer science, Software Engineering, or a related field.
- At least 5 years of professional full stack development experience with production web applications.
- Strong proficiency in TypeScript and modern JavaScript on both client and server.
- Strong experience with Node.js, a backend framework such as Express, NestJS, or Fastify, and frontend technologies including React and Next.js.
- Experience designing, building, and consuming REST and GraphQL APIs with Apollo tooling.
- Experience with PostgreSQL, MySQL, MongoDB, and Redis, including schema design and query optimization.
- Understanding of authentication, authorization, and API security practices.
- Familiarity with microservices, message queues, caching, background jobs, and micro-frontend architecture such as Module Federation.
- Skills in HTML5, CSS3, responsive design, CSS-in-JS, or Tailwind CSS.
- Experience with Redux Toolkit, Context API, or React Query for state management and data fetching.
- Ability to write tests with Jest, React Testing Library, and Supertest; Playwright or Cypress experience is a plus.
- Experience building reusable components and design systems from Figma designs, including with Storybook.
- Knowledge of web performance optimization and WCAG accessibility standards.
- Familiarity with Git, CI/CD pipelines, Vite, Webpack, and Docker; AWS, Azure, or GCP exposure is a plus.
- Hands-on experience with AI-assisted software development tools such as Cursor or Claude.
- Previous client-facing experience and strong written and verbal English communication skills.
- Proven leadership ability through mentoring, technical discussions, and ownership of delivery.
- Python experience with FastAPI, Django, or Flask and experience integrating AI/ML or LLM features are nice-to-have qualifications.
Tech Stack
AWSAzureCypressDjangoDockerExpressFastAPIFlaskGitGoogle Cloud PlatformGraphQLJavaScriptJestMongoDBMySQLNestJSNext.jsNode.jsPostgreSQLPythonReactRedisTypeScriptWebpack
Categories
About Strategic Systems International
Strategic Systems International (SSI) provides advanced analytics and software engineering services, building data-driven applications for tech companies and enterprises. Founded in 1991 and headquartered in Chicago, it operates globally with offices in Europe, Asia, and Latin America. SSI is a Microsoft Gold Certified Partner, delivering custom development, data engineering, business intelligence, and machine learning across sectors such as fintech, healthcare, IoT, and big data.