Senior Java Backend Developer Jobs in Round Rock, TX

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

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.

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.

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

• 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 environments, such as Development, Test, UAT, and Production.
• Ability to establish or apply integration standards, design patterns, and development best practices.
• Strong troubleshooting, analytical, and problem-solving skills.
• Excellent communication and ability to collaborate with technical and cross-functional teams.

• Bachelor's degree or equivalent experience in Computer Science, Engineering, Information Technology, or a related discipline.
• Experience with one or more enterprise integration platforms, including:
  • MuleSoft
  • Apigee
  • Kong
  • Workato
  • BizTalk
• Experience with Azure integration services and cloud-native architecture.
• Experience with message queues, event streaming, or pub/sub technologies.
• Experience supporting enterprise API management.
• Experience with automated testing and CI/CD practices.
• Experience supporting production integration environments.
• Experience providing technical guidance, mentoring, or design direction to development teams.

• Design and develop end-to-end integration solutions spanning backend services, APIs, integration layers, and cloud infrastructure.
• Translate business and technical requirements into scalable, secure, and maintainable integration solutions.
• Build scalable backend services and APIs using modern programming languages and/or enterprise integration platforms.
• Design and implement secure RESTful and enterprise APIs connecting internal and third-party systems.
• Apply appropriate integration patterns, including event-driven, asynchronous, pub/sub, ESB, and iPaaS architectures.
• Implement API security, authentication, authorization, versioning, throttling, and error-handling standards.
• Develop data mapping, transformation, and orchestration solutions across heterogeneous systems.
• Build, test, and deploy integration processes throughout the Dev, Test, UAT, and Production lifecycle.
• Support CI/CD pipelines and automated deployment processes.
• Monitor integration performance, troubleshoot issues, and provide expert-level post-deployment production support.
• Create and maintain architecture diagrams, technical specifications, data mappings, configuration documentation, and other technical artifacts.
• Define and promote integration design patterns, technical standards, and development best practices.
• Collaborate with developers, architects, business stakeholders, and other technical teams to optimize data flows and integration solutions.
• Provide technical guidance and support to development teams as needed.

The successful candidate will be:

• Hands-on and technically capable
• Strong in API and systems integration
• Comfortable designing solutions across cloud and enterprise environments
• Experienced troubleshooting complex production integrations
• Security-minded when designing APIs and data exchanges
• Strong in architecture, technical design, and problem-solving
• Able to establish and communicate technical standards and best practices
• Comfortable working with both modern development technologies and established enterprise integration platforms
• Collaborative and able to communicate effectively with technical and business stakeholders
• Comfortable managing multiple priorities and deadlines

Fathom Management offers full-time employees a comprehensive and competitive benefits package, including:

• Paid vacation, sick leave, and holidays
• Medical, dental, and vision insurance
• Life insurance
• Short- and long-term disability
• 401(k) retirement plan
• Military leave
• Professional training and development
• Tuition reimbursement
• Employee wellness program
• Commuter benefits
• And more

Fathom Management is an Equal Opportunity Employer committed to fostering a diverse and inclusive workplace. All employment decisions are made without regard to race, color, religion, creed, national origin, sex, age, marital status, sexual orientation, gender identity, citizenship status, veteran status, disability, or any other characteristic protected by applicable federal, state, or local law.