Senior Software Engineer, – JavaScript

Company: Sage
Apply for the Senior Software Engineer, – JavaScript
Location:
Job Description:

Job Description hackajob is collaborating with Sage to connect them with exceptional professionals for this role.n We’re hiring | Senior Salesforce Developer – Product Engineering Team (ISV) in Winnersh (Reading area), UK | Hybrid (3 days onsite)n Sage People is a global HR & people management SaaS product built on the Salesforce (n Force.comn) 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.n 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.n Team culture & environmentn What really makes this role stand out is the team.n• A stable, close knit engineering group — many team members have worked together for 8+ yearsn• A friendly, supportive and human environment, where people genuinely enjoy working togethern• Engineers, testers, architects and product managers collaborating daily as one product teamn• A culture that values shared ownership, learning and constructive technical discussionsn• Strong leadership momentum and investment, particularly around AI and Salesforce innovationn• A modern, welcoming office in Winnersh, with teams enjoying face to face collaboration as part of a hybrid modeln What you’ll be doingn 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.n• Design, develop and maintain enterprise-grade Salesforce product features with a strong focus on scalability, maintainability and performancen• Translate complex business requirements into clear technical designs and robust implementation plansn• Contribute actively to Salesforce architecture discussions, design reviews and long-term product decisionsn• Apply strong object-oriented design principles, automated testing practices, code quality standards and CI/CD ways of workingn• Mentor and support other engineers through code reviews, technical guidance and knowledge sharingn 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.n What we’re looking forn Core skillsn• Strong hands-on Salesforce development experience, ideally within a product, SaaS or ISV environmentn• Advanced knowledge of Apex, SOQL, JavaScript, Salesforce Lightning and Lightning Web Componentsn• Good understanding, and ideally practical experience, of Salesforce solution design and architecturen• Ability to design scalable, secure and maintainable solutions while considering Salesforce platform limits, data model, integrations and performancen• Solid object-oriented programming background, for example in Java or C#, with strong software engineering fundamentalsn Nice to haven• Experience contributing to architecture reviews, technical roadmaps or design governancen• Exposure to Salesforce REST APIs, integrations and enterprise application architecturen• Experience with Git, Jira, IntelliJ, CI/CD pipelines and automated testing strategiesn• Salesforce Platform Developer certification, or architecture-related Salesforce certificationsn• Interest in AI-driven product capabilities and how they can be embedded into Salesforce-based solutionsn Benefits – we have plentyn• Competitive salary plus generous bonus schemen• Pension plan: up to 8% matched + 2% top-up by Sagen• 25 days annual leave, with the option to buy up to 5 moren• 8 bank holidaysn• 5 paid volunteer days per year via the Sage Foundationn• 50% income protectionn• Holiday buy & selln• Comprehensive health, dental and vision coveragen• Work Away scheme (up to 10 weeks per year)n• Ongoing training and professional developmentn• Hybrid workingn• Healthy Mind app membershipn• Access to financial, health and wellbeing membershipsn Discover life at Sage:n

n 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.n#LI-JR2…

Posted: July 13th, 2026