Senior Software Engineer

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Senior Software Engineer in Others new

Strategic Systems International
Full time
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11/13/2026
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Lahore, Pakistan

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.

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 M...

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