> Markdown version of [/jobs/ext/4035200-systems-integration-lead](https://www.wearedevelopers.com/jobs/ext/4035200-systems-integration-lead). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Integration Lead - **Company:** My Key Recruitment - **Location:** Watford, UK - **Experience:** Expert - **Salary:** £45,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), User Authentication, Data Transformation, JSON, Netsuite, Anypoint Studio, Salesforce.Com, Shopify, Systems Integration, Suitescript, Dataweave, Api Design, Restful APIs, Data Inconsistencies, Webhooks, Mulesoft - **Published:** October 7, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=7b1fc463eab29e3e ## About the Role We're looking for a technically strong integration specialist who is comfortable taking ownership and delivering solutions hands-on., * Proven experience personally designing, building and supporting production integrations between Salesforce and NetSuite. * Hands-on MuleSoft experience, including working with Composer. * Strong knowledge of Salesforce objects, relationships, permissions and automation. * Good understanding of NetSuite customer, order, fulfilment and financial records. * Experience integrating CRM, ERP and ecommerce platforms. * Strong API and data skills, including REST, JSON, authentication, webhooks/polling and data transformation. * Experience with monitoring, error handling, reconciliation and controlled deployments. * Ability to troubleshoot and write code where configuration alone isn't sufficient. * Strong communication skills with the ability to explain technical solutions to non-technical stakeholders. Experience with Shopify APIs, MuleSoft Anypoint Platform, DataWeave, NetSuite SuiteTalk or SuiteScript would be advantageous. Relevant Salesforce or MuleSoft certifications would also be beneficial but are not essential. ## Description My Key Recruitment is recruiting for an experienced Systems Integration Lead to join an established and growing organisation based in Watford. This is a senior, hands-on technical role responsible for owning and developing integrations across Salesforce, NetSuite and Shopify, working within an existing MuleSoft environment. You'll combine solution design with hands-on development, taking ownership of existing integrations while building new flows, improving data accuracy and ensuring systems remain reliable as the business develops. The Role Key responsibilities will include: * Design, build and maintain integrations across Salesforce, NetSuite and Shopify. * Work hands-on within the existing MuleSoft environment, including Composer. * Review existing integrations, mappings, dependencies and issues. * Develop API-based solutions and custom code where required. * Manage customer, order and fulfilment data between systems. * Test, monitor and troubleshoot integrations. * Identify and resolve failures and data inconsistencies. * Maintain technical documentation and integration records. * Support controlled releases and ongoing system improvements. An initial priority will be improving the flow of NetSuite fulfilment and delivery information into Salesforce, ensuring accurate and reliable order status information.