Full Stack Senior Engineer

About the Role We are hiring a Full Stack Engineer to design and deliver complete, end-to-end features that power ADAPT from data models and APIs to responsive, intuitive interfaces. You will build and integrate seamless user experiences and robust backend services that make complex supply chain operations simple, efficient, and reliable. Your work will enable engineers, procurement teams, and suppliers to operate in real time building confidence and agility across the energy ecosystem. Key Responsibilities Frontend Development and Implementation Design and develop engaging, responsive user interfaces using React, HTML, CSS, and modern Java . Build scalable, maintainable frontend architectures using modular React components and efficient state management. Implement reusable design patterns aligned with best practices and clean-code principles. Ensure cross-browser compatibility and optimise applications for maximum speed and performance. Collaborate with UX/UI designers to transform design concepts into pixel perfect, functional experiences. Backend Development and Architecture Design and implement stateless RESTful APIs to support data exchange and system interoperability. Architect and develop microservicesbased solutions ensuring high availability, scalability, and maintainability. Design efficient database schemas, optimise queries, and ensure integrity for both SQL and NoSQL data stores. Implement robust authentication and authorisation mechanisms using OAuth 2.0 with Azure Active Directory. Deploy serverless applications leveraging cloud native services for cost effective scalability. End-to-End Integration Develop full stack features from database to user interface, ensuring seamless data flow and user experience. Integrate frontend applications with backend APIs, managing state and performance across the stack. Implement error handling, data validation, and strong consistency between frontend and backend systems. Ensure alignment between API contracts, data models, and functional requirements. Code Management and Quality Use Git and version control best practices to manage code across distributed teams. Implement and maintain CI/CD pipelines for efficient deployment of full stack components. Write comprehensive technical documentation for code, APIs, and integration workflows. Participate in code reviews and foster a culture of quality and collaboration. Problem Solving and Optimisation Debug and troubleshoot complex issues spanning multiple system layers. Conduct performance audits and implement optimisations from database operations to UI rendering. Identify and address security vulnerabilities at all application layers. Implement monitoring and logging to ensure performance, stability, and traceability. Stay informed about emerging technologies and evaluate adoption opportunities where relevant. Collaboration and Communication Work closely with product managers, designers, and developers to define and deliver impactful solutions. Translate business and technical requirements into cohesive system designs. Contribute to agile processes, sprint planning, and cross functional collaboration. Required Qualifications Experience Minimum of five years of professional experience in full stack or combined frontend/back end development post graduation. Demonstrated success delivering high quality, production grade full stack solutions. Experience working in agile or scrum environments. Proven ability to work across the entire application stack. Frontend Technical Expertise Expert level proficiency in React.js and its core principles. Deep understanding of React Hooks (useState, useEffect, useContext, useReducer, useMemo, useCallback, and custom hooks). Strong knowledge of frontend architecture patterns, modern Java (ES6+), HTML5, and CSS3. Experience with state management solutions (Redux, Redux Toolkit, MobX, Context API, or Zustand). Proficiency in React Router for navigation and routing. Experience applying performance optimisation techniques (memoisation, lazy loading, code splitting). Familiarity with testing libraries such as Jest, React Testing Library, and Enzyme. Backend Technical Expertise Strong proficiency designing and implementing microservices architectures. Experience developing RESTful APIs following best practices and design standards. Skilled in implementing secure authentication and authorisation (OAuth 2.0, Azure AD). Solid understanding of serverless computing and event driven architecture patterns. Experience with SQL and NoSQL databases, including schema design, optimisation, and performance tuning. Cross Cutting Competencies Knowledge of security best practices across the full stack, including OWASP Top 10 vulnerabilities and mitigations. Advanced proficiency with Git and collaborative development workflows. Experience with testing frameworks across frontend and backend systems. Familiarity with CI/CD pipelines and DevOps methodologies. Excellent problem solving, d