Junior Front-End Developer (Hybrid) – Maidstone

Location: Maidstone (Hybrid — 2 days WFH)

Employment type: Full-time / Permanent

Salary: £28,000 – 33,000 (based on experience)

Hours: Monday–Friday (37.5 hours a week)

Reports to : Lead Front-End Engineer

You’ll be working on real products used by millions of people, not stuck fixing CSS on internal dashboards. You’ll gain hands-on experience in production web code, component libraries, mobile app development, and cross-team collaboration.

Submission Technology was first established in 2002, when we launched the UK’s first-ever cashback website, cashback,co.uk. Since then, we’ve evolved into a modern performance marketing company, building member-focused platforms including Custard and its companion Gift Card App, as well as several other internal products and tools.

As a Junior Front-End Developer, your primary responsibility will be to take design files and turn them into high-quality, responsive front-end code.

You’ll work closely with our Lead Front-End Engineer and senior developers, taking on smaller tasks, UI/UX improvements, and incremental feature work. This is a great role for someone who wants to grow into a mid-level front-end engineer and a great opportunity to get into the affiliate marketing industry outside of London.

• Build responsive web pages using HTML, CSS, and JavaScript.
• Convert Figma design files into clean and maintainable front-end code.
• Pick up development tickets to iterate on and improve existing user interfaces.
• Collaborate with developers to grow your technical knowledge and problem-solving skills.
• Participate in code reviews, ensuring adherence to best practices and coding standards.

• Contributing to our mobile app (React Native / Expo)
• Working with backend developers and learning how Python drives data to the front end
• Getting involved in the design process and having meaningful input
• Opportunity to learn more advanced topics (API interactions, component libraries, version control, security, and much more)

• Solid understanding of HTML, CSS & JavaScript
• Ability to accurately replicate designs into responsive web interfaces
• Strong communication and teamwork skills
• Curious mindset with a passion for staying up-to-date with the latest industry trends and technologies.
• Good time management and ability to work within a structured ticketing workflow

• Experience interacting with APIs
• Understanding of core UI/UX principles
• Exposure to modern frameworks (React or React Native)
• Version control experience (Git)
• Familiarity with cloud platforms such as AWS

While you may not be directly involved with all these technologies, you may be interested in what else we make use of:

HTML, CSS, Sass, React, React Native / Expo, JavaScript, Python (Flask), PostgresSQL, AWS, Linux

Someone who is eager to learn, motivated by solving problems, enjoys working as part of a collaborative team and takes ownership of their work, and isn’t afraid to ask questions.

If you’re passionate about front-end development and want to grow your skills while working on real products that millions of users engage with daily, this is the place for you.

• 20 days holiday + bank holidays, increasing by 1 day per year of service
• Extra day off on your birthday
• Hybrid and flexible working (2 days WFH)
• Macbook Pro
• Pension Scheme
• Employee Assistance Programme with 24/7 wellbeing support
• Cycle-to-work scheme
• Free parking and a dangerously well-stocked snack & refreshment bar
• Casual, friendly office environment with regular team activities in an amazing woodland/garden setting.

Via Reed or apply via the Jobs page on our website; you can upload your CV and cover letter there.

• Initial Call (10 mins) - A quick, friendly chat with our Lead Front-End Engineer.
• Technical Interview + Mini Coding Exercise (30–60 mins) - A relaxed conversation with our developers where we look at how you think, not whether you memorised syntax.

If you’re looking for a role where you can grow, learn, and contribute to real customer-facing products rather than being another ticket-churner, we’d love to hear from you.