Gen25
Senior MuleSoft Developer
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Senior MuleSoft Developer
As a Senior MuleSoft Developer, you will sit at the centre of our technical delivery team in London. You will architect, build, and deploy enterprise-grade integrations on the MuleSoft Anypoint Platform, connecting complex backend ecosystems (Salesforce, SAP, legacy databases, REST/SOAP web services) using MuleSoft’s API-Led Connectivity framework (System, Process, and Experience layers).
You will work closely with Solution Architects, Salesforce Consultants, and client stakeholders to translate complex business needs into secure, performant, and scalable solutions.
Key Responsibilities
- API-Led Integration & Build: Design, develop, and test System, Process, and Experience APIs using Anypoint Studio, RAML, and DataWeave 2.0.
- Architecture & Governance: Establish integration patterns, reusable data models, security policies (OAuth 2.0, mTLS, JWT), and error-handling strategies across CloudHub and Runtime environments.
- DevOps & Testing: Implement robust MUnit test suites (>80% coverage) and automated CI/CD pipelines (Git, Maven, Jenkins/GitHub Actions) for zero-downtime releases.
- Technical Leadership: Conduct rigorous code reviews, enforce coding standards, and guide other developers within the practice.
- Client & Stakeholder Collaboration: Lead discovery sessions, document source-to-target field mappings, and articulate technical decisions clearly to technical and business audiences.
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Essential Experience & Skills
- Proven Track Record: 5+ years of hands-on integration development experience with the MuleSoft Anypoint Platform.
- Core Languages: Deep expertise in DataWeave 2.0, RAML/OAS, and core Java/Object-Oriented Programming principles.
- Integrations: Strong background in REST, SOAP, JSON, XML, event-driven messaging (Kafka, JMS), and connector configs (Salesforce, Database, HTTP).
- Delivery: Experience working in Agile/Scrum environments with version control tools (Git) and CI/CD tools.
- Communication: Exceptional verbal and written communication skills in UK English.
- Eligibility: Unrestricted Right to Work in the UK (UK Passport, Indefinite Leave to Remain, or settled status).
Desirable Experience & Skills
- Active MuleSoft Certified Developer (Level 1 or 2), MCIA (Integration Architect), or MCPA (Platform Architect) certifications.
- Hands-on experience with Salesforce platform integrations (Sales/Service Cloud, Data Cloud) or AWS.
- Experience with CloudHub 2.0 or Runtime Fabric (RTF).
What we offer
- Competitive Salary & Package: Excellent base salary reflective of senior experience, pension contributions, and performance-related incentives.
- Career Path & Certifications: Sponsorship to gain advanced MuleSoft and Salesforce certifications.
- Hybrid Working Model: Flexible working arrangements combining working from home with collaborative team days at our Southwark office.
- Agile Culture: A flat, collaborative culture where your voice shapes engineering practices and solution architectures.
- Perks & Socials: Regular team socials, 25 days annual leave + bank holidays, and modern workspace facilities.
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Please Note: Applicants must have existing, permanent, and unrestricted legal right to work in the United Kingdom prior to applying. Gen25 Ltd cannot provide visa sponsorship or visa transfers for this role.
Gen25 is an innovative digital transformation consultancy and official Salesforce Summit Partner. We build high-performing digital environments for leading brands, combining deep expertise across Salesforce, AWS, and MuleSoft.
At Gen25, we champion clean code, API-led architecture, agile teamwork, and automated CI/CD pipelines. We are expanding our UK integration practice and are looking for an experienced Senior MuleSoft Developer to lead the technical delivery of multi-cloud enterprise integration solutions.
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