Immersum
Salesforce Developer
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Role: Salesforce Engineer
Location: London, hybrid (2–3 days per week in office)
Salary: £60k-70k + 10% bonus + benefits
Tech: Salesforce, Lightning Web Components (LWC), Apex, JavaScript, REST/SOAP APIs, Salesforce Flow, SFDX / Salesforce CLI, Git, Azure DevOps
Immersum are partnering with a rapidly growing Fintech business operating in the FX and payments space who are looking for a Salesforce Engineer to join an autonomous engineering team.
About the Opportunity
This is a role for someone who wants to build and own solutions end-to-end, rather than simply picking up tickets and making incremental changes to an established Salesforce environment. You'll have the opportunity to work on a genuinely greenfield platform, shaping the architecture, patterns and standards as it grows.
The Company
This global Fintech business is transforming how businesses and financial institutions move money internationally. Operating across FX, payments and banking infrastructure, they are building a high-volume platform where reliability, scalability and correctness are critical.
The engineering environment is fast-paced and highly autonomous, with short paths between making a decision and getting it into production. Engineers are trusted to take ownership of the problems they are solving, work closely with the business and deliver solutions that have a direct impact on how the company operates.
The Role
You'll be a hands-on Salesforce Engineer, designing, building and shipping custom solutions across a modern, greenfield Salesforce environment. A big part of the role will be building Lightning Web Components and API integrations, alongside Apex, Flow and Salesforce data modelling. You'll own your work from refinement and design through to testing, deployment and production, with genuine input into how the platform is built as it scales.
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You'll work closely with engineers and business stakeholders to understand the problem behind a requirement and turn it into a robust, scalable solution. They're looking for someone who brings curiosity and urgency — someone who asks questions, challenges the obvious solution and takes responsibility for getting things finished and into production.
You'll also contribute to code reviews, testing standards, architecture and the continued evolution of the Salesforce codebase. As the platform is relatively new, you'll have a genuine opportunity to shape the engineering standards rather than inherit years of technical debt.
The environment is regulated, so you'll need to balance speed with quality, auditability, security and careful handling of data.
Technology
- Salesforce / Lightning Web Components (LWC)
- Apex / SOQL
- Modern JavaScript (ES6+)
- REST / SOAP API integrations
- Salesforce Flow
- Queueable / Batch / Schedulable Apex
- Salesforce CLI / SFDX
- Git / pull-request workflows
- Azure DevOps
- Platform Events
- Jest
What they're looking for
- 3+ years' commercial Salesforce development experience
- Strong Lightning Web Components experience, including lifecycle hooks, reactive properties, wire adapters, events and component composition
- Strong experience building Salesforce integrations using REST/SOAP, authentication, named credentials and data mapping
- Solid Apex development skills, including SOQL, governor limits, asynchronous processing and unit testing
- Experience taking features or projects from design through to production
- Strong design and implementation skills, with the ability to make decisions that keep a growing codebase scalable and maintainable
- Practical Salesforce Flow experience and good judgement around when logic belongs in Flow versus Apex
- Comfortable with modern JavaScript / ES6+
- Experience with Git, pull requests and source-driven Salesforce deployments using SFDX / Salesforce CLI
- Strong communication skills and confidence working directly with non-technical stakeholders
- A genuine ownership mentality — someone who takes responsibility for outcomes rather than simply completing assigned tasks
- Curiosity to understand the underlying problem, ask the right questions and challenge assumptions
- A sense of urgency and bias towards delivery, whilst maintaining high engineering standards
- Comfortable working in a regulated environment where quality, testing and auditability matter
Get help with your application
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Experience within financial services or another regulated environment would be useful, but isn't essential.
If you're a Salesforce Engineer who wants to build rather than just maintain, take genuine ownership of your work and have the opportunity to shape a modern Salesforce platform from an early stage, this could be a great opportunity to learn more.
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