Senior Salesforce Software Engineer

We're hiring | Senior Salesforce Developer - Product Engineering Team (ISV) in Winnersh (Reading area), UK | Hybrid (3 days onsite) Sage People is a global HR & people management SaaS product built on the Salesforce ( Force.com ) platform, serving customers worldwide. As an ISV, we build and evolve one single product, with a strong focus on code quality, scalability, performance and long-term architecture. We're looking for a senior hands-on Salesforce engineer who can go beyond feature delivery: someone able to understand business complexity, shape technical design, contribute to architecture decisions, and help build scalable, maintainable solutions within a mature Salesforce product environment. Team culture & environment What really makes this role stand out is the team. - A stable, close knit engineering group - many team members have worked together for 8 years - A friendly, supportive and human environment, where people genuinely enjoy working together - Engineers, testers, architects and product managers collaborating daily as one product team - A culture that values shared ownership, learning and constructive technical discussions - Strong leadership momentum and investment, particularly around AI and Salesforce innovation - A modern, welcoming office in Winnersh, with teams enjoying face to face collaboration as part of a hybrid model 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 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. What we're looking for 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 Benefits - we have plenty - Competitive salary plus generous bonus scheme - Pension plan: up to 8% matched 2% top-up by Sage - 25 days annual leave, with the option to buy up to 5 more - 8 bank holidays - 5 paid volunteer days per year via the Sage Foundation - 50% income protection - Holiday buy & sell - Comprehensive health, dental and vision coverage - Work Away scheme (up to 10 weeks per year) - Ongoing training and professional development - Hybrid working - Healthy Mind app membership - Access to financial, health and wellbeing memberships Discover life at Sage: If you're looking for a Salesforce developer role with real technical depth and a genuinely great team culture, we'd love to hear from you.c272c101-f45c-4783-b4a0-50ad222b87c0