> Markdown version of [/jobs/ext/3589368-senior-salesforce-software-engineer](https://www.wearedevelopers.com/jobs/ext/3589368-senior-salesforce-software-engineer). 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). --- # Senior Salesforce Software Engineer - **Company:** The Sage Group plc - **Location:** Winnersh, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, JIRA, Automation of Tests, C Sharp (Programming Language), Software as a Service, Software Quality, Code Review, Continuous Integration, IntelliJ IDEA, Object-Oriented Software Development, Salesforce.Com, Systems Integration, Apex Code, Enterprise Software Applications, Salesforce Lightning, Git, Visualforce, Salesforce Object Query Language (SOQL), Restful APIs - **Published:** October 5, 2026 - **Apply:** https://jobsthamesvalley.co.uk/jobs/apply/ats-redirect/?id=3005177565-2 ## About the Role This is a senior hands-on development role with genuine technical depth. It is not an admin or configuration-focused position: we are looking for someone who enjoys building, designing and improving complex Salesforce product capabilities., Core skills * Strong hands-on Salesforce development experience, ideally within a product, SaaS or ISV environment * Advanced knowledge of Apex, SOQL, JavaScript, Salesforce Lightning and Lightning Web Components * Good understanding, and ideally practical experience, of Salesforce solution design and architecture * Ability to design scalable, secure and maintainable solutions while considering Salesforce platform limits, data model, integrations and performance * Solid object-oriented programming background, for example in Java or C#, with strong software engineering fundamentals Nice to have * Experience contributing to architecture reviews, technical roadmaps or design governance * Exposure to Salesforce REST APIs, integrations and enterprise application architecture * Experience with Git, Jira, IntelliJ, CI/CD pipelines and automated testing strategies * Salesforce Platform Developer certification, or architecture-related Salesforce certifications * Interest in AI-driven product capabilities and how they can be embedded into Salesforce-based solutions ## Description What you'll be doing As a Senior Salesforce Developer, you will take ownership of complex technical delivery while contributing to the design and architecture of our Salesforce-based product. You will work hands-on with Apex, SOQL, JavaScript, Salesforce Lightning, Lightning Web Components, VisualForce and APIs, while helping define robust technical approaches for scalable product features. * Design, develop and maintain enterprise-grade Salesforce product features with a strong focus on scalability, maintainability and performance * Translate complex business requirements into clear technical designs and robust implementation plans * Contribute actively to Salesforce architecture discussions, design reviews and long-term product decisions * Apply strong object-oriented design principles, automated testing practices, code quality standards and CI/CD ways of working * Mentor and support other engineers through code reviews, technical guidance and knowledge sharing