Full Stack Web Developer (mid-level)

Who We Are

[Employer hidden — sign up to reveal] powers global payments for corporates, institutions and high net worth individuals, combining worldwide reach with local expertise. With over 45 years of market experience, two banking licences and offices in 11 countries, our technology delivers 24/7 accessibility, while our people deliver award-winning service. In 2024, we supported $1tn+ of payment volume, reaching 190 countries in 130 currencies. Our 32k+ corporate clients benefit from our regulatory resilience with 63+ permissions globally, access to major payment rails, and our proprietary technology. [Employer hidden — sign up to reveal] is a place where energy, commitment, and collaboration are core to our values of shared success.

Role Purpose

As a Mid-Level Full Stack Web Developer, you will support the ongoing development, optimisation and technical enhancement of the [Employer hidden — sign up to reveal] website and its wider digital ecosystem. The role focuses on building, maintaining and improving website content and systems, integrating marketing and sales technologies, and enabling a high-performing, customer‑centric digital experience that drives acquisition, engagement and conversion.

Role Responsibilities

• Manage and update website templates, components, and landing pages.
• Build, test, and deploy new front‑end features using HTML, CSS, REACT, JavaScript, following responsive design best practices.
• Support back‑end development including API integrations, data handling, and server-side logic.
• Ensure cross-browser compatibility, accessibility compliance, and optimisation for speed and performance.
• Manage integrations across forms, HubSpot, CRM systems, analytics, tracking tools and other marketing platforms.
• Support implementation of data schema, tagging, cookies and tracking scripts that enable proper analytics and attribution.
• Collaborate with RevOps to ensure high-quality data flows and accurate measurement across the funnel.
• Support CRO initiatives, including A/B test setup, implementation, monitoring, experimentation and reporting.
• Implement front‑end and logic changes required for experiments across landing pages and product pages.
• Analyse user behaviour, identify friction points, and propose improvements to enhance lead generation and conversion.
• Implement technical AEO/SEO updates using SEMRush insights including internal linking improvements, metadata, structured data, redirects and content optimisation.
• Partner with marketing teams to support organic visibility improvements through technical enhancements.
• Use analytics tools (Crazy Egg) to identify performance issues and opportunities for UX or SEO optimisation.
• Work with Designer to transform UI/UX requirements into responsive, high-quality web experiences.
• Collaborate with Marketing and Sales teams to refine messaging and improve page-level conversion.
• Support content and campaign launches, ensuring landing pages and templates function correctly.
• Debug and resolve website issues, bugs, and inconsistencies across both front‑end and back‑end environments.
• Participate in code reviews and adopt best practices for maintainability, accessibility, security and performance.
• Maintain documentation for features, processes, and integrations to support operational efficiency.
• Monitor competitor websites for UX, design, conversion tools, and best practices that could be applied to [Employer hidden — sign up to reveal].
• Share recommendations for innovation, improvements, and emerging trends.

What We’re Looking For

Essential Knowledge, Skills & Experience:

• Hands-on experience building production-ready user interfaces with React.
• Exposure to back‑end development using Node.js, Express, APIs and databases.
• Experience working with CMS platforms (Contentful), templates, components and content-driven web builds.
• Understanding of technical SEO/AEO principles and implementation.
• Familiarity with analytics and tracking tools such as GA4, Google Tag Manager and HubSpot.
• Experience using Git and working in shared codebases.
• Strong debugging, problem‑solving and time‑management skills.

Desirable Knowledge, Skills & Experience:

• Experience with front‑end technologies including HTML, CSS/SCSS, and JavaScript beyond React.
• Experience translating Figma designs into accurate, responsive web pages.
• Exposure to server‑side tracking such as Meta (Facebook) CAPI.
• Experience contributing to CRO programmes and experimentation frameworks.
• Knowledge of web performance optimisation, accessibility standards and best practices.
• Familiarity with tools such as SEMrush and user‑behaviour analytics platforms.

What We Can Offer You

This role offers a competitive salary, plus a benefits package including private medical health insurance.

Location and Contract Type

This is a full-time, permanent position. The role is expected to be office-based in London, however, we have a flexible working policy which enables you to work up to 2 days from home.

Fostering a culture of belonging and inclusivity

We're committed to creating a workplace where every individual feels valued, respected, and included. As an Equal Opportunity Employer, we actively cultivate an inclusive culture where diversity thrives, and we empower our colleagues to drive meaningful change within our organization through Employee Engagement initiatives and value champion networks. Like many of our peers, we recognize that fostering inclusivity is an ongoing journey, and we remain steadfast in our commitment to progress. By measuring our efforts through regular assessments and listening to the feedback of our employees, we strive to ensure that our initiatives are impactful and responsive to the evolving needs of our workforce. Together, we want to build a workplace where everyone can bring their authentic selves to work, as we believe this is the foundation of innovation, creativity, and collective success.

Interested?

If this role sounds like a good fit for you, please click on the “Apply Now” button to submit your application. For discover more about [Employer hidden — sign up to reveal] and how we’re leading the way in global payments and currency risk management, please visit our News Hub and various social media platforms Facebook, Twitter UK, Twitter Americas, Instagram, LinkedIn.