Integration Developer

Hammerjack Pty Ltd; Philippines; On-site; PHP 900,000 - 1,400,000; Full time

Job summary

Hammerjack Pty Ltd in the Philippines is seeking a Senior Integration Developer who collaborates with business stakeholders, architects and project managers to design and implement scalable integrations using Azure services. You will develop new integrations, enhance existing ones and provide ongoing support across environments.

Responsibilities include building API-led connectivity, writing tests (unit, integration and contract), applying security standards, and ensuring smooth operations from

Qualifications

• Bachelor's degree in information technology, Computer Science, Engineering, or related discipline.
• 4+ years experience building integrations, ideally with Microsoft Azure Integration Services.
• Demonstrated ability to quickly understand and work with existing integration codebases and specifications.
• Solid understanding of API-led connectivity and event-driven architecture patterns.

Responsibilities

• Design and build integration components using Azure Logic Apps, API Management, Service Bus, Event Grid and Functions.
• Write Open API specifications ahead of implementation (spec-first) and implement payload transformations to and from the canonical data model.
• Write unit, integration, and contract tests covering happy path, validation errors, idempotency, and downstream failure scenarios.
• Troubleshoot and support integrations across development, test, and production environments.

Skills

API-led connectivity

Event-driven architecture

Unit/integration/contract testing

Troubleshooting

Stakeholder collaboration

Education

Bachelor's degree in IT/CS/Engineering

Tools

Azure Logic Apps

Azure API Management

Azure Service Bus

Azure Event Grid

Azure Functions

Azure DevOps / GitHub Actions CI/CD

Application Insights / Log Analytics

Job description

The Senior Integration Developer works closely with business stakeholders, architects, and project managers, and is responsible for developing new integrations, enhancing existing ones, and providing ongoing support.

1. Integration Development

• Design and build integration components using
• Azure Logic Apps
• Azure API Management
• Azure Service Bus
• Azure Event Grid
• Azure Functions
• Write Open API specifications ahead of implementation (spec-first) and implement payload transformations to and from the canonical data model.
• Apply API versioning standards and ensure specifications are kept current on the developer portal.

2. Testing & Quality

• Write unit, integration, and contract tests covering happy path, validation errors, idempotency, and downstream failure scenarios.
• Ensure all integration work conforms to reference architecture standards and meets the requirements for sign-off prior to release.

3. Operations & Support

• Implement structured logging, correlation ID propagation, and mandatory log events.
• Troubleshoot and support integrations across development, test, and production environments.

4. Standards, Security & Collaboration

• Build and support integrations in line with the Integration Reference Architecture.
• Ensure integrations meet the platform's security and compliance requirements.
• Collaborate with stakeholders, business analysts, product owners, and architects to clarify requirements and design decisions.

Must Haves:

Essential

• Bachelor's degree in information technology, Computer Science, Engineering, or related discipline.
• 4+ years experience building integrations, ideally with Microsoft Azure Integration Services.
• Demonstrated ability to quickly understand and work with existing integration codebases and specifications.
• Solid understanding of API-led connectivity and event-driven architecture patterns.

Technical Skills:

Microsoft Azure

• Azure Logic Apps
• Azure API Management
• Azure Service Bus & Event Grid
• Azure Functions
• Azure DevOps / GitHub Actions CI/CD
• Application Insights / Log Analytics

Integration & API

• REST, SOAP, GraphQL
• OpenAPI/Swagger
• API versioning and lifecycle management
• JSON, XML, XSLT
• Enterprise Messaging patterns

Desired:

• Experience with Dynamics 365 / Power Platform integrations.
• Microsoft Certified: Azure Developer Associate or Azure Integration Services credential.
• ARM/Bicep/Terraform (IaC) exposure.
• Familiarity with AI-assisted development tools (e.g. GitHub Copilot, Claude Code) and/or experience integrating Azure OpenAI or other AI services into integration solutions.