Senor Integration Developer

Client: Government / Enterprise Client
Location: Remote
Salary: $120,000–$140,000 annually, based on experience and technical interview
Employment Type: Full-Time
Citizenship: U.S. Citizen Required

Keywords: Senior Integration Developer, Sr. Integration Developer, Senior Integration Engineer, Integration Engineer, API Developer, Backend Developer, Systems Integration, Integration Architecture, Azure, AWS, GCP, Python, Java, JavaScript, TypeScript, REST API, SOAP, GraphQL, OAuth2, JWT, SAML, API Security, MuleSoft, Apigee, Kong, Workato, BizTalk, Event-Driven Architecture, Message Queues, Pub/Sub, iPaaS, ESB, CI/CD, Cloud Integration, Data Transformation, API Management

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Position Overview

Fathom Management is seeking an experienced Sr. Integration Developer to design, develop, and support scalable enterprise integrations across applications, APIs, data platforms, and cloud environments.

The successful candidate will combine strong backend development, API integration, and architecture skills with the ability to establish integration standards, design patterns, and technical best practices. This position will work across the full integration lifecycle-from solution design and development through testing, deployment, monitoring, and production support.

This is an excellent opportunity for a Senior Integration Developer, Senior Integration Engineer, API Developer, or Backend Developer who enjoys solving complex integration challenges, designing scalable solutions, and providing technical direction to development teams.

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Candidate Verification Notice

For your protection and ours, Fathom Management conducts a brief candidate verification at the beginning of the screening process. Because we support State and Federal Government clients, this verification helps protect your identity, résumé, and application from unauthorized use and confirms that we are speaking directly with the individual who applied for the position.

You may be asked to provide a photo of a government-issued identification document as part of this verification. Video verification may also be required.

Identification is used solely for candidate verification and will be handled in accordance with Fathom Management’s privacy and security practices.

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Current Technical ArchitectureDevelopment Experience

Candidates should demonstrate recent, hands-on experience with several of the following:

• Designing end-to-end integration solutions spanning backend services, APIs, integration layers, and cloud infrastructure
• Backend services and API development using Python, Java, JavaScript, and/or TypeScript
• Azure, AWS, or GCP cloud environments and cloud-native deployment practices
• RESTful APIs and other API technologies, including SOAP and/or GraphQL
• Enterprise integration platforms such as MuleSoft, Apigee, Kong, Workato, BizTalk, or comparable technologies
• Integration patterns including event-driven, pub/sub, hub-and-spoke, point-to-point, ESB, and iPaaS
• API security including OAuth2, JWT, SAML, and API keys
• Message queues, asynchronous processing, and event streaming
• Data mapping, transformation, orchestration, and exchange across heterogeneous systems
• CI/CD pipelines and multi-environment deployments
• Architecture diagrams, technical specifications, data mappings, configuration documentation, and technical standards

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Required Qualifications

• 5+ years of hands-on software development experience using one or more modern programming languages such as Java, Python, JavaScript, or TypeScript.
• Strong understanding of enterprise integration patterns and architectural styles.
• Hands-on experience designing and developing APIs and system integrations.
• Experience with RESTful services, SOAP, and/or GraphQL.
• Working knowledge of API security, authentication, authorization, versioning, throttling/rate limiting, and error handling.
• Experience with at least one major cloud platform: Azure, AWS, or GCP, including cloud-native architecture and deployment practices.
• Solid understanding of data mapping, transformation, orchestration, and integration across disparate systems.
• Experience across the software development lifecycle (SDLC), including development, testing, CI/CD, and deployment.
• Experience supporting deployments across multiple en…