Freelance Integration Software Engineer Jobs in Texas

7-Eleven is an iconic family of brands with over 86,000 locations, surpassing every retailer in the world.We revolutionize convenience, restaurants and fuel through cutting edge innovation - working hard to be the customer's first choice. 7-Eleven empowers our employees to 'activate awesome' and make a meaningful impact in their stores and communities every day.If you're ready to grow, lead and make a difference, come join our team and help shape the future of convenience.

This software engineering position is for an Integration / Middleware Engineer role along with expertise as an Enterprise Integration Platform Administrator. This is a hybrid role bridging software development and system administration of the underlying Integration/Middleware technology platforms. This professional designs, builds, and maintains the integration pipelines, APIs, and other middleware components that connect business applications, external business partner organizations(B2B) and other Software as a Service (SAAS) providers while also contributing to managing and administering the centralized iPaaS/Integration platform.

Core Responsibilities

Integration Engineering

• Integration Pipeline Development: Design, develop, test, and deploy complex API-led, event-driven, or batch integrations between internal and external systems (e.g., ERP, CRM, HRIS, Logistics, Supply Chain, Finance, Settlement/Reconciliation, Analytics).
• Design, Development, Testing, and Deployment of Integrations for Cloud, On-premises, and Hybrid scenarios.
• Work with Integration/iPaaS platform vendor to troubleshoot Platform Issues & ensure seamless upgrades.
• Work with Network Operations and Network Security Teams to provide needed Network Access for new Integrations.
• Provide oversight to Third Party Vendor Integration Support Teams.
• Work with Business areas to define new integration requirements.
• Participate in Requirements, Design and Development reviews.
• Data Transformation: Create and maintain mapping rules, data validation, and transformations (e.g., JSON, XML, XSLT, EDI) to ensure data fidelity across endpoints.
• API Management: Design, publish, secure, and monitor REST APIs and webhooks
• Troubleshooting & Triage: Act as the highest tier of support to resolve integration failures, connectivity drops, and payload mismatches. Provide guidance and troubleshooting assistance to the 24x7 Integration support team

Platform Administration

• Platform Management: Administer the Enterprise Integration Platform as a Service (iPaaS) (IBM Webmethods Hybrid iPaaS, Boomi, MFT, Custom Microservices and APIs).
• Administer iPaaS/OnPrem Integration Platforms such as Boomi / IBM Webmethods Hybrid iPaaS platform including User & Security Management, Deployment, Process logging, best practices/guard rails for integration engineers and reporting.
• Manage and perform scheduled IWHI/Boomi platform release updates and maintenance along with applying Boomi/equivalent server OS updates

• Environment Maintenance: Oversee platform health, user access controls, patching, upgrades, and system capacity planning as needed.
• Governance & Standards: Define and enforce integration policies, API lifecycles, security standards, and naming conventions as applicable to the Integration platforms/Integrations
• CI/CD & Release Management: Manage code promotion, deployment pipelines, and version control across development, staging, and production environments.

Required Qualifications & Technical Skills

• Education: Bachelor's degree in computer science, Information Technology, Software Engineering, or equivalent. A minimum of 5 years of experience with the above technologies / Integration skills is required.
• Platform Expertise: Hands-on administration and development experience on modern integration platforms. Experience with IBM Webmethods Hybrid iPaaS, Boomi, MFT, Custom Microservices, APIs and API Gateways is highly preferred.
• Languages & Scripting: Proficiency in backend programming/scripting (Python, Java, or equivalent).
• Protocols: Familiarity with data exchange formats (JSON, XML) and protocols (REST, SOAP, GraphQL, X12, AS2, SFTP, etc as relevant to integration engineering).
• Database Knowledge: Strong querying capabilities in SQL and familiarity with relational & NoSQL databases.
• Soft Skills: Exceptional analytical problem-solving, stakeholder communication, and technical documentation skills.

• Cross-functional Collaboration: Partner with application owners, business analysts, and DevOps teams to map data flows and understand business requirements.
• Proactive Monitoring: Implement logging and alert systems to identify performance bottlenecks before they disrupt business operations.
• Technical Documentation: Maintain accurate and up-to-date integration blueprints, mapping matrices, and runbooks for support teams.

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If an hourly or salary range is included in this ad it represents the range 7-Eleven in good faith believes is the range of compensation for this role at the time of this posting. The Company may ultimately pay more or less than the posted range. This range is only applicable for jobs to be performed in this state. This range may be modified in the future. No amount is considered to be wages or compensation until such amount is earned, vested, and determinable under the terms and conditions of the applicable policies and plans. The amount and availability of any bonus, commission, long-term incentive compensation, benefits, or any other form of compensation and benefits that are allocable to a particular employee remains in the Company's sole discretion unless and until paid and may be modified at the Company's sole discretion, consistent with the law.

For a general description of all benefits 7-Eleven is offering in the US for the position, please visit this link.

For a general description of all benefits 7-Eleven is offering in Canada for the position, please visit this link.