Senior Platform Engineer

Senior Platform Engineer

Posted Today by Jobserve

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£500 Per day
Outside
Remote
United Kingdom
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Amazon Web Services (AWS) API Design API Management Application Programming Interface (API) Billing Billing Systems Cloud Computing Cloud Technology Code Review Continuous Integration and Continuous Delivery Dataweave Design Elements And Principles Extensible Markup Language (XML) Git (Version Control System) Integration Platforms Internet Service Provider Lifecycle Management Life Cycle Planning Managed Services Management Microsoft Azure Microsoft Message Queuing Middleware MuleSoft RESTful API Salesforce Software Development Stakeholder Engagement Stakeholder Management Webhooks

Summary: The Senior Platform Engineer will serve as the technical authority for API and integration work within the BSS/OSS ecosystem, focusing on building and maintaining integration flows across various platforms. This role emphasizes senior contributions to the CI/CD pipeline and collaboration with key stakeholders to enhance internal integration capabilities. The position is fully remote and classified as outside IR35, with a contract length of six months. The ideal candidate will possess extensive experience in API and integration development, particularly in a production environment.

Key Responsibilities:

  • Act as the in-house technical authority for API and integration work across the BSS/OSS ecosystem.
  • Own the build, maintenance, and evolution of integration flows connecting various platforms.
  • Contribute to the CI/CD pipeline and ensure integration quality across squad boundaries.
  • Collaborate with the Head of OSS/BSS, Software Solutions Architect, and cross-squad peers to establish internal integration capabilities.

Key Skills:

  • Minimum 3 years of hands-on API and integration development experience.
  • Strong REST API fundamentals and practical experience with API consumption and publishing.
  • Experience with integration platforms and Middleware.
  • Data transformation capability across various data formats.
  • Source control discipline using Git.
  • Participation in CI/CD pipeline processes.
  • Strong communication and stakeholder engagement skills.
  • Desirable: MuleSoft Anypoint Platform experience, DataWeave 2.0 proficiency, API life cycle management, Salesforce connector experience, telecoms or ISP platform exposure, MuleSoft certification, and experience with event-driven integration patterns.

Salary (Rate): £500/day

City: undetermined

Country: United Kingdom

Working Arrangements: remote

IR35 Status: outside IR35

Seniority Level: undetermined

Industry: IT

Senior Platform Engineer - Remote - Outside IR35 - 6 months

  • As Senior Platform Engineer (Integration) in Squad A, you will be the in-house technical authority for all API and integration work across critical BSS/OSS ecosystem. You will own the build, maintenance, and evolution of integration flows connecting Salesforce Communications Cloud, NetAdmin, Nokia/Adtran, billing systems, and new services provisioning pipelines - bringing rigour, repeatability, and platform ownership to an environment that has historically relied on external managed services.
  • This is not a Back Office development role. You will be a senior contributor to the CI/CD pipeline, a guardian of integration quality across squad boundaries, working closely with the Head of OSS/BSS, the Software Solutions Architect, and cross-squad peers to establish the internal integration capability

Experience

Must Have Skills

  • Minimum 3 years of hands-on API and integration development experience in a professional delivery environment - designing, building, deploying, and managing integration flows at production scale
  • Strong REST API fundamentals - HTTP methods, status codes, JSON/XML payload structures, API design principles, and practical experience consuming and publishing APIs at production scale
  • Hands-on experience with integration platforms and Middleware - connecting disparate enterprise systems, managing data flows, and maintaining integration reliability in a live environment (experience on any major integration platform considered - MuleSoft, Boomi, Azure Integration Services, AWS EventBridge, or equivalent)
  • Data transformation capability - authoring and maintaining transformation logic across heterogeneous data formats (JSON, XML, CSV) in a production context
  • Source control discipline - Git-based development, branching strategy, pull requests, and code review as standard practice
  • CI/CD pipeline participation - automated build, test, and deployment workflows; environment promotion; pipeline troubleshooting
  • Strong communication and stakeholder engagement skills - able to translate technical integration complexity into clear language for non-technical audiences

Desirable Skills

  • MuleSoft Anypoint Platform experience - Anypoint Studio, Runtime Manager, API Manager, and the standard connector catalogue (HTTP, SFTP, Database, Salesforce)
  • DataWeave 2.0 proficiency - complex, multi-step transformation patterns across heterogeneous formats without reference to templates
  • API life cycle management - RAML/OpenAPI Specification authoring, versioning, and governance
  • Salesforce connector experience - consuming Salesforce APIs or managing Salesforce-connected integration flows
  • Telecoms, ISP, or altnet BSS/OSS platform exposure
  • MuleSoft Certified Developer or Integration Architect certification
  • Experience with event-driven integration patterns - Webhooks, message queuing, async processing

Contract Length: 6 months

Day Rate: £500/day (Outside IR35)

Mode: Fully Remote

Start: ASAP

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