.Net Integration Developer (SC Cleared)

GCS Recruitment; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

GCS Recruitment seeks an Integration Developer to design, develop, and maintain data integration solutions across diverse systems. You will build and consume APIs using C#/.NET, create RESTful services, and implement robust error handling to ensure data reliability.

You will work with Azure Logic Apps, Azure Data Factory, SSIS, and other middleware tools to orchestrate data flows and integrate internal and external APIs, driving scalable, event-driven architectures across the organization.

Qualifications

• Experience designing data mappings, transformations, and APIs to enable secure data exchange.
• Proficient in building RESTful APIs and backend services using C#/.NET.
• Knowledge of integration platforms and middleware to orchestrate data flows.

Responsibilities

• Design data mappings, transformations, APIs, and message schemas for system-wide data exchange.
• Design, develop, test, and deploy integration solutions using C#, .NET, and RESTful APIs.
• Configure connectors and implement robust error handling and retry mechanisms for reliability.
• Utilize integration platforms such as Azure Logic Apps, Azure Data Factory, SSIS, and similar tools.
• Develop and maintain APIs (REST and SOAP) with secure data exchange and authentication.
• Implement data transformation between JSON, XML, and CSV; create reusable components.
• Perform unit, integration, and end-to-end testing; debug with tools like Postman, Fiddler, and logs.
• Document API contracts and configurations; provide progress updates and risk reports.
• Collaborate with developers, data engineers, QA, and analysts to align integration work with goals.

Skills

C#

.NET

API design

RESTful APIs

Data integration

Unit testing

Troubleshooting

Code debugging

Software architecture

Collaboration

Tools

Azure Logic Apps

Azure Data Factory

SSIS

Postman

Swagger

API gateways

Fiddler

Job description

ROLE PURPOSE

As an Integration Developer, your primary responsibility is to design, develop, and maintain data integration solutions that enable seamless communication and data exchange between disparate systems. You will collaborate with stakeholders to understand integration requirements, design integration workflows, and implement scalable and robust solutions. A strong emphasis will be placed on development experience, especially in building and consuming APIs using C# or similar modern programming languages. Your role involves working with integration platforms, tools, and technologies to ensure the reliable and efficient flow of data across the organization.

PRINCIPAL ACCOUNTABILITIES

1. Integration Design:
   Collaborate with business stakeholders, IT teams, and external partners to gather integration requirements and define workflows. Design data mappings, transformations, APIs, and message schemas to facilitate the secure and efficient exchange of data between systems.
2. Development and Implementation:
   Design, develop, test, and deploy integration solutions using C#, .NET, or similar programming languages. Build RESTful APIs and backend services to support integration needs. Configure connectors and implement robust error handling and retry mechanisms to ensure reliability and data integrity.
3. Integration Platforms and Tools:
   Utilize integration platforms such as Azure Logic Apps, Azure Data Factory, SSIS, or other middleware tools to orchestrate data flows and integrate diverse systems. Experience with tools such as Postman, Swagger, and API gateways is highly desirable.
4. API and Service Integration:
   Build and maintain APIs (REST and/or SOAP), working with authentication, authorization, and secure data exchange. Integrate internal and third-party APIs to facilitate service-oriented and event-driven architecture across systems.
5. Data Transformation and Mapping:
   Implement data transformation logic to convert between formats like JSON, XML, and CSV. Design reusable components and mappings to streamline data flow between systems with different schemas or protocols.
6. Testing and Debugging:
   Perform unit, integration, and end-to-end testing of integration workflows and APIs. Debug issues using tools such as Fiddler, Postman, and application logs. Continuously optimize performance and reliability through code refactoring and system tuning.
7. Documentation and Reporting:
   Document API contracts, integration configurations, and solution architecture to support maintainability. Provide progress updates, technical summaries, and risk reports to stakeholders throughout the project lifecycle.
8. Collaboration and Communication:
   Work closely with software developers, data engineers, QA teams, and business analysts to align integration work with broader project goals. Clearly communicate technical designs, project updates, and roadblocks to both technical and non-technical stakeholders.

Continuous Learning:
Keep up-to-date with integration frameworks, cloud technologies, and development best practices. Actively participate in knowledge-sharing sessions and contribute to the continuous improvement of integration standards and code quality