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API Developer

Join a strategic modernization program that is migrating mission-critical data from a mainframe past to a modern, open, API-driven future. You will design and build the web services that connect applications, unlock data, and enable intelligence-led operations.

CONTEXT

Our client, a major player in its sector, is executing a bold program to break free from mainframe dependence and embrace a modern, open architecture. For years, critical data has lived in monolithic systems, making integration slow and innovation difficult. Now, the organization is building a web of REST APIs and data exchange services that will allow applications to talk to each other seamlessly. This is not just a technical migration; it is a strategic move to enable advanced data analysis, artificial intelligence, and intelligence-led decision-making. The program touches flagship solutions and will progressively transform how the entire organization uses data. As an API Developer, you will be a key craftsperson in this architectural revolution.

ACTIVITIES

  • Participate in the technical analysis, design, and development of web services and REST APIs.
  • Develop application components in PHP and JavaScript, ensuring high performance, security, and interoperability.
  • Adapt and enrich strategic solutions by integrating new functionalities related to data analysis and artificial intelligence.
  • Contribute to the definition of the technical architecture and API management standards.
  • Collaborate with development teams, architects, and business analysts to deliver end-to-end solutions.
  • Ensure that data exchange services are secure, documented, and scalable.
  • Support the progressive migration of data from legacy systems to the modern open architecture.

EXPECTED ACHIEVEMENTS

  • A robust library of REST APIs that enable seamless integration across diverse applications.
  • Reduced dependency on mainframe systems, lowering cost and increasing agility.
  • Flagship solutions enhanced with modern data analysis and intelligent features.
  • A secure, interoperable, and well-documented API ecosystem.
  • A foundation for intelligence-led operations that improves decision-making and operational efficiency.

ENVIRONMENT

  • PHP, JavaScript, and modern web development frameworks.
  • REST API design, OpenAPI/Swagger, and API gateways.
  • Mainframe integration and data migration patterns.
  • SQL and NoSQL databases, message queues, and data exchange formats.
  • Agile development, DevOps, CI/CD, and secure coding practices.