Senior MuleSoft Developer

Homerun B.V.; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Gen25, a digital transformation consultancy and Salesforce Summit Partner, seeks a Senior MuleSoft Developer in London to lead enterprise integration delivery. You will design, build, and deploy API-led integrations across multi-cloud ecosystems, collaborating with architects, Salesforce consultants, and client stakeholders.

Join a team championing clean code, CI/CD automation, and agile delivery to craft secure, scalable solutions for leading brands. UK-based work eligibility required.

Qualifications

• 5+ years hands-on integration development with MuleSoft Anypoint Platform.
• Deep expertise in DataWeave 2.0, RAML/OAS, Java and OO principles.
• Strong REST, SOAP, JSON, XML, and event-driven messaging (Kafka/JMS) experience.
• Experience delivering in Agile/Scrum with Git and CI/CD tools.
• Excellent verbal and written UK English communication.
• Eligible to work unrestricted in the UK.

Responsibilities

• Api-led integration design, development, and testing in Anypoint Studio.
• Establish integration patterns, reusable data models, and security policies across cloud/runtime environments.
• Implement robust unit tests and automated CI/CD for smooth releases.
• Provide technical leadership and code reviews within the team.
• Lead discovery sessions and translate business needs into technical solutions for stakeholders.

Skills

MuleSoft Anypoint Platform

DataWeave 2.0

RAML/OAS

Java / OOP

REST / SOAP / JSON / XML

Kafka / JMS

Agile / Scrum

Tools

Git

Maven

Jenkins

GitHub Actions

Job description

At Gen25 we're looking for a Senior MuleSoft Developer to join our team.

About the job

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.

AsaSeniorMuleSoftDeveloper,youwillsitatthecentreofourtechnicaldeliveryteaminLondon.Youwillarchitect,build,anddeployenterprise-gradeintegrationsontheMuleSoft AnypointPlatform,connectingcomplexbackendecosystems (Salesforce,SAP,legacydatabases,REST/SOAPwebservices)usingMuleSoft’sAPI-LedConnectivityframework(System, Process,andExperiencelayers).

YouwillworkcloselywithSolutionArchitects,Salesforce Consultants,andclientstakeholderstotranslatecomplex businessneedsintosecure,performant,andscalablesolutions.

KeyResponsibilities

• API-LedIntegration&Build:Design,develop,andtest System,Process,andExperienceAPIsusingAnypoint Studio,RAML,andDataWeave2.0.
• Architecture&Governance:Establishintegrationpatterns, reusabledatamodels,securitypolicies(OAuth2.0,mTLS, JWT),anderror-handlingstrategiesacrossCloudHuband Runtimeenvironments.
• DevOps&Testing:ImplementrobustMUnittestsuites (>80%coverage)andautomatedCI/CDpipelines(Git, Maven,Jenkins/GitHubActions)forzero-downtime releases.
• TechnicalLeadership:Conductrigorouscodereviews, enforcecodingstandards,andguideotherdevelopers withinthepractice.
• Client&StakeholderCollaboration:Leaddiscovery sessions,documentsource-to-targetfieldmappings, andarticulatetechnicaldecisionsclearlytotechnicaland businessaudiences.
  

EssentialExperience&Skills

• Proven TrackRecord:5+ yearsofhands-onintegration developmentexperiencewiththeMuleSoftAnypoint Platform.
• CoreLanguages:DeepexpertiseinDataWeave2.0,RAML/OAS,andcoreJava/Object-OrientedProgramming principles.
• Integrations:StrongbackgroundinREST,SOAP,JSON, XML,event-drivenmessaging(Kafka,JMS),and connectorconfigs(Salesforce,Database,HTTP).
• Delivery:ExperienceworkinginAgile/Scrumenvironmentswithversioncontroltools(Git)andCI/CDtools.
• Communication:Exceptionalverbalandwritten communicationskillsinUKEnglish.
• Eligibility:UnrestrictedRighttoWorkintheUK.

DesirableExperience&Skills

• ActiveMuleSoftCertifiedDeveloper(Level1or2),MCIA (IntegrationArchitect),orMCPA(PlatformArchitect) certifications.
• Hands-onexperiencewithSalesforceplatform integrations(Sales/ServiceCloud,DataCloud)orAWS.
• ExperiencewithCloudHub2.0orRuntimeFabric(RTF).