Job Description
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
Key Responsibilities
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:
https://www.youtube.com/watch?v=TCMtTYUUiuU
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.
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