Full Stack Developer

The Senior Full Stack Developer (Backend Focused) will play a pivotal role in designing, developing, and maintaining scalable backend systems, APIs, and database-driven applications. This role requires deep expertise in Node.js, microservices architecture, PostgreSQL/MySQL database design, query optimisation, and application performance. While frontend experience is desirable, the primary focus will be on building robust, secure, and high-performing backend services that power enterprise-grade web applications.

The candidate will have responsibilities across the following functions:

Backend Development and Architecture:

• Design, develop, and maintain scalable backend services using Node.js, TypeScript, Express.js, and related frameworks.
• Build RESTful APIs, microservices, and event-driven architectures to support business-critical applications.
• Design and implement secure authentication and authorisation mechanisms (OAuth, JWT, SSO).
• Develop reusable backend components and services following industry best practices.
• Drive architectural decisions to ensure scalability, maintainability, and high availability.

Database Development and Optimisation:

• Design, develop, and maintain complex database schemas in PostgreSQL and/or MySQL.
• Write optimised SQL queries, stored procedures, functions, and database scripts.
• Monitor and improve database performance through indexing, query tuning, and execution plan analysis.
• Ensure database security, backup strategies, replication, and disaster recovery readiness.
• Manage large datasets and optimise database interactions for high-throughput applications.

Performance and Reliability:

• Identify and resolve application bottlenecks, memory leaks, and performance issues.
• Conduct profiling, debugging, monitoring, and root cause analysis across backend services and databases.
• Implement caching strategies using Redis or similar technologies.
• Ensure system reliability through logging, monitoring, alerting, and observability tools.

Collaboration and Quality:

• Collaborate with frontend developers to define APIs and integration patterns.
• Participate in architecture reviews, sprint planning, and technical discussions.
• Conduct peer code reviews and mentor junior developers.
• Create and maintain comprehensive technical documentation.
• Work closely with product teams to translate business requirements into scalable technical solutions.

DevOps and Cloud:

• Contribute to CI/CD pipeline development and deployment automation.
• Support cloud-native deployments on AWS.
• Work with containerization technologies such as Docker and Kubernetes.
• Maintain secure and reliable production environments.

The core requirements for the job include the following:

Backend Expertise (Mandatory):

• Strong hands-on experience with Node.js, TypeScript, Express.js, and Microservices Architecture.
• Extensive experience designing and consuming REST APIs and integrating third-party services.
• Strong understanding of asynchronous programming, event-driven architecture, and backend design patterns.

Database Expertise (Mandatory)

• Advanced proficiency in PostgreSQL and/or MySQL.
• Strong experience in: Database schema design, Data modelling, Query optimization, Indexing strategies, stored procedures and functions, Performance tuning, Database security and maintenance.
• Experience managing and optimising large-scale transactional databases.
• Ability to analyse query execution plans and resolve database bottlenecks.

Front-End Expertise (Preferred):

• Advanced skills in JavaScript, TypeScript, Angular or React (latest versions), HTML, and CSS.
• Strong understanding of responsive design and user experience principles.

General Technical Skills:

• Familiarity with Git, CI/CD workflows, and cloud services (AWS, Google APIs, Apple Health APIs).
• Knowledge of push notifications, authentication (OAuth), and integration with third-party APIs.
• Knowledge of software design patterns, MVC, MVVM, MVP, and Clean Architecture.
• Experience with code reviews and quality assurance practices.
• Strong analytical and problem-solving skills with a proactive mindset.

Experience:

• 6+ years of commercial software development experience across front-end and a strong focus on back-end.
• Proven track record of delivering high-quality, scalable applications in fast-paced environments using Node.js and PostgreSQL/MySQL.
• Experience working in Agile/Scrum environments.
• Healthcare, SaaS, or enterprise application experience is highly desirable.