Full Stack Developer

Job Requirements At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster. Summary: We are seeking a highly skilled Full Stack Developer to design, develop, and maintain scalable, high-performance web applications and real-time data systems. The role involves building end-to-end solutions across frontend, backend, and streaming pipelines, with a focus on reliability, security, low-latency performance, and technical ownership. Key Responsibilities

• Design, develop, and maintain scalable web applications and services
• Build responsive, high-performance frontend applications using modern frameworks
• Develop robust backend APIs and services (REST/GraphQL)
• Integrate frontend and backend systems to deliver seamless user experiences
• Design and optimize database schemas, queries, and indexing strategies
• Implement authentication and authorization (JWT, OAuth2, RBAC)
• Build real-time data pipelines for ingesting, processing, and visualizing streaming data
• Develop event-driven architectures using message brokers and async processing
• Integrate third-party APIs, IoT devices, and external services
• Ensure application performance, security, and cross-platform compatibility
• Implement observability using logging, metrics, and distributed tracing
• Optimize systems for latency, throughput, and scalability
• Apply fault-tolerance patterns (retry, circuit breaker, graceful degradation)
• Write clean, maintainable, and well-documented code
• Conduct code reviews, testing, debugging, and troubleshooting
• Collaborate with cross-functional teams (UI/UX, product, DevOps)
• Deploy applications using CI/CD pipelines to cloud or on-prem environments We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard. We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace. Work Experience Technical Skills
• Strong proficiency in HTML, CSS, JavaScript (ES6+), and TypeScript
• Experience with modern frontend frameworks (React / Angular / Vue.js) and state management (Redux, Zustand, Context API)
• Knowledge of frontend performance optimization (lazy loading, code splitting, memoization) and browser internals (event loop, rendering lifecycle)
• Experience with responsive design, accessibility (a11y), and cross-browser compatibility
• Strong backend development experience with Node.js (Express/NestJS), Python (Django/FastAPI/Flask), Java (Spring Boot), or .NET
• Expertise in API design (REST/GraphQL), including pagination, filtering, versioning, and rate limiting
• Experience with asynchronous programming, concurrency, and event-driven systems
• Experience with microservices architecture and service-to-service communication
• Hands-on experience with message brokers and streaming platforms (Kafka, RabbitMQ, AWS Kinesis, Pub/Sub)
• Understanding of real-time data processing (Kafka Streams, Spark Streaming, Flink) and WebSockets/SSE
• Strong experience with relational (PostgreSQL/MySQL) and NoSQL databases (MongoDB/Redis), including data modeling, indexing, and query optimization
• Knowledge of caching strategies (Redis, CDN), transactions (ACID), and data partitioning/sharding
• Proficiency with Git and version control workflows
• Experience with Docker and containerization
• Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins)
• Experience with cloud platforms (AWS, Azure, GCP) and web servers (Nginx)
• Knowledge of observability tools (Prometheus, Grafana, ELK, OpenTelemetry)
• Understanding of distributed systems concepts (event-driven architecture, CAP theorem, eventual consistency)
• Knowledge of scalability techniques (horizontal scaling, load balancing)
• Strong understanding of security best practices (OWASP Top 10, JWT, OAuth2, encryption, secure coding)
• Experience with testing frameworks (Jest, Mocha, PyTest, Cypress, Playwright) and code quality tools (ESLint, Prettier, SonarQube)
• Preferred Qualifications
• Experience with Kubernetes and container orchestration
• Experience with real-time dashboards and monitoring systems
• Familiarity with AI/ML integration (model APIs, inference pipelines)
• Experience with IoT or embedded systems integration
• Knowledge of time-series and high-frequency data systems Education & Experience
• Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience
• Proven experience building and deploying production-grade applications