Senior Developer – Integration Services

Introduction

Job Purpose.

• To design, develop, implement, maintain and support enterprise integration solutions that enable reliable data exchange between internal and external business systems.
• The incumbent will be responsible for delivering integration development initiatives, resolving complex production issues and ensuring the stability and performance of business-critical interfaces.
• The role requires strong hands-on experience with Microsoft BizTalk Server, C#, .NET and SQL Server, together with the ability to develop and support integration solutions using Microsoft Azure Integration Services.

Job description

Key Roles and Responsibilities

Integration Development and Maintenance

• Design, develop, test and maintain enterprise integration solutions.
• Develop and support Microsoft BizTalk Server applications, orchestrations, pipelines, schemas, maps and adapters.
• Develop integration components using C#, .NET Framework and .NET.
• Develop and maintain SQL Server stored procedures, queries and database integration components.
• Implement REST, SOAP, XML, JSON and file-based integration interfaces.
• Enhance existing integration solutions to accommodate changing business requirements.
• Ensure solutions comply with established development standards and architectural guidelines.

Production Support and Incident Management

• Provide second- and third-line technical support for enterprise integration applications.
• Investigate and resolve complex production incidents affecting integration services.
• Troubleshoot BizTalk messaging, orchestration, adapter and connectivity failures.
• Perform root-cause analysis and implement permanent corrective measures.
• Monitor integration processing and identify performance bottlenecks.
• Work with infrastructure, database, SAP and application support teams to resolve cross-system issues.
• Participate in agreed after-hours production support and critical incident resolution activities.

Azure Integration Services Development

• Develop and maintain cloud-based integration solutions using Azure Functions and Logic Apps.
• Implement asynchronous messaging using Azure Service Bus.
• Develop and maintain APIs and integrations using Azure API Management.
• Support integration between on-premises applications and Azure-hosted services.
• Apply appropriate error handling, retry mechanisms, logging and monitoring.
• Contribute to the modernisation and migration of existing integration solutions.

Deployment and Release Management

• Prepare application deployment packages and associated release documentation.
• Support CI/CD implementation using Azure DevOps Repos and Pipelines.
• Execute application deployments across development, testing and production environments.
• Perform post-deployment verification and troubleshooting.
• Ensure appropriate rollback procedures are available for production releases.
• Comply with change management and release governance requirements.

Technical Analysis and Documentation

• Analyse business and technical requirements and translate them into integration solutions.
• Produce technical specifications, interface mappings and solution documentation.
• Participate in technical design discussions and solution reviews.
• Maintain accurate documentation for existing and newly developed integrations.
• Identify technical risks and recommend improvements.

Team Collaboration and Knowledge Sharing

• Provide technical guidance to junior and intermediate developers.
• Participate in code reviews and knowledge-sharing sessions.
• Collaborate with business analysts, application teams, infrastructure and external vendors.
• Support technical handovers and operational readiness activities.
• Provide progress updates and escalate technical blockers to the Integration Technical Team Lead.

Minimum requirements

Qualifications

• Bachelor's degree or National Diploma in Information Technology, Computer Science, Software Development or a related qualification.
• Equivalent relevant professional experience may be considered.

Experience

• Minimum 5 years of software development or enterprise integration experience.
• Demonstrable hands-on experience with Microsoft BizTalk Server.
• Strong development experience using C# and .NET Framework.
• Experience with Microsoft SQL Server and T-SQL.
• Experience developing and consuming REST and SOAP web services.
• Experience supporting business-critical production applications.
• Familiarity with Azure DevOps and source control.

Technical Skills

Essential

• Microsoft BizTalk Server 2016 or later
• C# and .NET Framework
• Microsoft SQL Server, T-SQL and stored procedures
• XML, XSD, XSLT and JSON
• REST and SOAP web services
• WCF and file-based integrations
• Visual Studio and Git
• Production troubleshooting and debugging
• Highly Advantageous
• Azure Functions
• Azure Logic Apps
• Azure Service Bus
• Azure API Management
• Azure Storage
• Azure DevOps CI/CD Pipelines
• .NET Worker Services and Windows Services
• PowerShell scripting
• Application monitoring and observability
• Additional Advantages (Non-Mandatory)
• IBM AS/400 (IBM i) integration experience, including connectivity, file transfers and data exchange with enterprise applications.
• Familiarity with IBM DB2 databases and AS/400 Integrated File System (IFS).
• SAP integration experience.
• Enterprise retail system integration.
• Hybrid cloud and on-premises integration environments.
• Experience with IBM AS/400 is desirable but is not a prerequisite for consideration.

Competencies

• Strong analytical and problem-solving abilities.
• Ability to work independently on complex technical assignments.
• Attention to detail and commitment to quality.
• Effective communication with technical and non-technical stakeholders.
• Ability to prioritise competing development and production support requirements.
• Accountability and ownership of assigned deliverables.
• Willingness to learn and adopt emerging integration technologies.
• Ability to work effectively in a collaborative technical team.