At a Glance
- Tasks: Design and develop modern web applications using React and TypeScript in a fast-paced environment.
- Company: Join a leading global financial services organisation with a high-performing software engineering team.
- Benefits: Competitive salary, flexible working, and opportunities for professional growth.
- Other info: Collaborative culture with opportunities to mentor and grow within the team.
- Why this job: Make an impact by creating innovative digital solutions that enhance user experiences.
- Qualifications: Strong experience in UI development with React, TypeScript, and Agile methodologies.
The predicted salary is between 51750 - 63250 £ per year.
Location: West Sussex
Office: 3 days per week mandatory
Contract: 12 months
Start Date: By mid-September 2026
Working Hours: 40 hours per week
The Opportunity
We are looking for an experienced UI Developer to join a high-performing software engineering team supporting a leading global financial services organisation. You'll be working on modern, customer-focused digital products and data-driven web applications within a fast-paced, technology-led environment. You will be responsible for designing, developing, testing and enhancing responsive user interfaces using React and TypeScript, while contributing to high standards of code quality, performance, security and maintainability. This is a hands-on role suited to someone with strong frontend engineering experience who enjoys working in an Agile product development environment and wants to contribute to innovative digital solutions within a globally recognised financial services business.
Key Responsibilities
- Design and develop modern, scalable web applications using React and TypeScript.
- Build dynamic, data-driven user interfaces and forms, including JSON Schema-based forms.
- Develop reusable React components using functional component patterns and React Hooks.
- Implement effective state management using Redux and/or Context API.
- Integrate frontend applications with RESTful APIs and web services.
- Develop and maintain high-quality application code aligned with industry standards and compliance requirements.
- Write and maintain automated tests using React Testing Library or similar frameworks.
- Participate in code reviews and contribute to engineering best practices.
- Identify and implement web application performance optimisation opportunities.
- Work closely with product, engineering and other stakeholders within an Agile delivery environment.
- Contribute to the mentoring and development of engineering team members where required.
Essential Skills & Experience
- Software engineering/product development experience.
- Strong commercial experience in UI/frontend development.
- Excellent hands-on experience with React JS and TypeScript.
- Strong knowledge of JavaScript ES6, HTML5 and CSS3.
- Experience with React Hooks and functional component architecture.
- Experience with Redux and/or Context API.
- Experience with React Testing Library or comparable frontend testing frameworks.
- Strong experience integrating applications with RESTful APIs.
- Hands-on experience working with JSON and web service technologies.
- Experience developing data-driven UIs and dynamic forms.
- Understanding of frontend performance optimisation techniques.
- Experience working within Agile software development environments.
- Strong understanding of software engineering standards, code quality and maintainability.
Desirable Skills
- Node.js
- Java
- Experience mentoring or supporting other engineers.
- Experience working within distributed engineering teams.
- Professional certifications in software engineering, architecture, or product management.
What We’re Looking For
We're looking for a developer who is not only technically strong but also takes ownership of their work, contributes to engineering standards, and can collaborate effectively across a product-focused environment.
UI Developer ReactJS & TypeScript employer: Square One Resources
Join a forward-thinking organisation that values innovation and collaboration, where your role as an Organisational Transformation Lead will be pivotal in driving meaningful change. With a focus on employee growth and a culture that encourages continuous improvement, you'll have the opportunity to shape strategic partnerships and enhance operational effectiveness. Located in a dynamic environment, this role offers competitive compensation and the chance to make a significant impact on business outcomes.
StudySmarter Expert Advice🤫
We think this is how you could land UI Developer ReactJS & TypeScript
✨Get Involved in Open-Source Projects
Diving into open-source projects is a brilliant way to showcase your skills and connect with other developers in the community. Not only will you beef up your GitHub profile but you might also catch the eye of someone at Square One Resources who values hands-on experience over just theory.
✨Attend Local Tech Meetups
Tech meetups are gold mines for networking and discovering job opportunities, especially in the fast-paced world of software engineering. Check out local listings for events in your area and don’t shy away from introducing yourself. This could lead directly to a temporary position at Square One Resources!
✨Showcase Your Work Online
With temporary roles, it’s all about standing out in a short space of time. Create a portfolio website where you highlight your projects and skills. Talk about your code, and provide links to your GitHub repositories. This will not only demonstrate your abilities but will also make it easier for recruiters at Square One Resources to see what you bring to the table.
✨Leverage Temporary Job Boards
Don’t forget to check specialised job boards for temporary software development roles. Websites like We Work Remotely or Remote OK often list short-term gigs that can be a perfect fit. Apply directly through our website as well, making sure your application is sharp—temporary roles can move fast!
We think you need these skills to ace UI Developer ReactJS & TypeScript
Some tips for your application 🫡
Show Off Your Tech Skills:Make sure your CV highlights your tech stack and any programming languages you’re proficient in. Include specifics about any frameworks or technologies you’ve worked with; they can make you stand out in the sea of applicants. It’s all about showing that you have the chops we need at Square One Resources!
Portfolio 2.0:Since you’re applying for a temporary gig, it’s super important to showcase a portfolio that highlights your best projects. Include links to GitHub or any personal projects that demonstrate what you can do in a real-world environment. This gives us a taste of your style and your problem-solving approach!
Keep It Brief and Relevant:With a temporary position, we want to see your ability to hit the ground running. Be concise in your CV and cover letter; stick to experiences that directly relate to the role. Highlight any previous temporary roles or freelance gigs that show your adaptability and quick learning!
Tailor Your Cover Letter:Don’t just send a generic cover letter. Personalise it for UI Developer ReactJS & TypeScript at Square One Resources! Mention why this temporary role excites you and how you see yourself contributing in the short run. Show us what you've got and why you're the one for this quick turn-around!
How to prepare for a job interview at Square One Resources
✨Nail the Technical Skills
For a software engineering role, you'll likely face technical questions or coding tasks during your interview. Brush up on the relevant programming languages and frameworks that Square One Resources uses, and don’t forget to practice some coding challenges on platforms like LeetCode or HackerRank. Showing your coding prowess can really make you stand out!
✨Prepare for System Design Questions
Even for a temporary role, having a grasp of system design principles can be crucial. Be ready to discuss how you would architect a software solution, including discussing trade-offs, scalability, and performance considerations. Having examples from previous projects can really show off your analytical thinking.
✨Demonstrate Your Adaptability
Since this is a temporary role, you'll want to emphasise your ability to hit the ground running. Highlight experiences where you quickly adapted to new technologies or teams. Let’s make it clear to the interviewers at Square One Resources that you can learn on the job and deliver results in a short timeframe!
✨Show Off Your Portfolio
Make sure to have a portfolio or GitHub ready showcasing your projects. Having tangible evidence of what you've done—be it personal projects, contributions to open-source, or previous work—can convey how capable you are. Tailor this for what might interest Square One Resources, so it's relevant and sparks conversation during your interview.
