BA4 - API Developer

Purpose of the role

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. 

Accountabilities

• Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance.
• Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
• Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing.
• Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth.
• Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.
• Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

Analyst Expectations

• To perform prescribed activities in a timely manner and to a high standard consistently driving continuous improvement.
• Requires in-depth technical knowledge and experience in their assigned area of expertise
• Thorough understanding of the underlying principles and concepts within the area of expertise
• They lead and supervise a team, guiding and supporting professional development, allocating work requirements and coordinating team resources.
• If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.
• OR for an individual contributor, they develop technical expertise in work area, acting as an advisor where appropriate.
• Will have an impact on the work of related teams within the area.
• Partner with other functions and business areas.
• Takes responsibility for end results of a team’s operational processing and activities.
• Escalate breaches of policies / procedure appropriately.
• Take responsibility for embedding new policies/ procedures adopted due to risk mitigation.
• Advise and influence decision making within own area of expertise.
• Take ownership for managing risk and strengthening controls in relation to the work you own or contribute to. Deliver your work and areas of responsibility in line with relevant rules, regulation and codes of conduct.
• Maintain and continually build an understanding of how own sub-function integrates with function, alongside knowledge of the organisations products, services and processes within the function.
• Demonstrate understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.
• Make evaluative judgements based on the analysis of factual information, paying attention to detail.
• Resolve problems by identifying and selecting solutions through the application of acquired technical experience and will be guided by precedents.
• Guide and persuade team members and communicate complex / sensitive information.
• Act as contact point for stakeholders outside of the immediate function, while building a network of contacts outside team and external to the organisation.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

Join us as an BA4- API Developer at Barclays, responsible for designing and maintaining robust integration solutions that connect critical business systems across the organization. You’ll drive the development of scalable microservices and real-time data pipelines, ensuring seamless communication between internal systems and external platforms. You will leverage modern technologies to build high-performance integration layers that enable business agility and operational excellence. 

To be successful as a BA4-API Developer, you should have experience with: 

• Hands-on expertise in Core Java (Java 17+) and the Spring Framework, particularly Spring Boot for microservices development.

• Proficiency in building and consuming RESTful APIs and working with event-driven architecture.

• Deep understanding of Kafka and message-oriented middleware for building real-time data pipelines.

• Strong SQL and database design skills, with hands-on experience in SQL Server or similar relational databases.

• JPA/Hibernate and Spring Data for data persistence and ORM patterns.

• Microservices architecture, domain-driven design, and distributed systems patterns.

• OAuth2 and Spring Security for implementing secure authentication and authorization mechanisms.

• Experience with CI/CD tools such as Jenkins and GitLab, and SCM tools such as Git, GitHub, and Bitbucket. 

• Practical knowledge of using AI development tools such as Copilot, GitLab Duo, or Claude across the SDLC lifecycle for code generation, test creation, debugging, documentation, and developer productivity improvement. 

• Experience building applications within the legal domain, supported by strong legal domain knowledge and an understanding of legal processes, workflows, and business requirements would be an added advantage .

• Unit testing frameworks such as JUnit 5 and Mockito, along with integration testing best practices using WireMock.

• Code quality tools and practices such as SonarQube and JaCoCo for code coverage.

Some other highly valued skills may include: 

• Front-end technologies such as Angular or React for building integration monitoring dashboards or admin consoles.

• AI tools and assistants for code generation, testing, and debugging to accelerate development.

• Experience in optimizing database queries, views, and stored procedures.

• Containerization and orchestration using Docker and Kubernetes.

• API Gateway implementations and API management platforms.

• Observability and monitoring solutions such as the ELK stack, Grafana, and Prometheus. 

• Advanced troubleshooting and performance optimization.

You may be assessed on key critical skills relevant for success in the role, such as risk and controls, change and transformation, business acumen, strategic thinking, and digital and technology, as well as job-specific technical skills. 

This role is based in Pune.