At a Glance
- Tasks: Build bespoke web applications and improve business workflows with cutting-edge tech.
- Company: Join a fast-growing fintech scale-up with a dynamic culture.
- Benefits: Competitive day rate up to £700, flexible contract work, and innovative projects.
- Other info: Work closely with senior stakeholders in a high-performance environment.
- Why this job: Make a real impact by solving complex problems and using AI tools.
- Qualifications: Strong TypeScript, React, and SQL experience; full stack engineering skills required.
We’re working with a growth equity-backed fintech scale-up that is building a suite of bespoke web applications for senior stakeholders across the business. They are looking for a Full Stack Web Application Engineer to join on a contract basis and help design, build, and iterate on high-impact internal tools from scratch. This is a hands-on engineering role for someone who enjoys solving complex business problems through clean, practical software. You’ll partner directly with senior stakeholders, understand what they need, and build web applications that improve how teams work with data, workflows, and decision-making.
The environment suits someone highly technical, pragmatic, and comfortable moving quickly. You’ll be expected to own problems, build quickly, iterate with users, and use modern AI-assisted development workflows where useful.
What you’ll be doing:
- Building bespoke web applications from scratch.
- Partnering with senior stakeholders to understand problems and shape solutions.
- Developing backend functionality using TypeScript.
- Building frontend interfaces using React.
- Working with SQL databases.
- Creating tools that improve business workflows and decision-making.
- Using AI-assisted development tools and workflows to accelerate delivery.
- Iterating quickly based on user feedback.
Must-have experience:
- Strong TypeScript experience.
- Proven experience building web applications.
- Full stack engineering experience, ideally with a backend bias.
- Strong SQL experience.
- React experience.
- Experience working in fast-moving technical environments.
- Ability to communicate clearly with technical and non-technical stakeholders.
Highly desirable:
- Fintech or financial services experience.
- Experience in a scale-up, SaaS, software, or product-led environment.
- Experience with AI workflows or AI-assisted development.
- Exposure to tools such as Claude Code, Cursor, Copilot, or similar.
- Node.js.
- Python.
- Experience building internal tools, workflow platforms, dashboards, or data-heavy applications.
This could suit someone who enjoys:
- Turning messy business problems into clean software.
- Building from scratch rather than maintaining legacy systems.
- Working closely with smart, senior users.
- Using AI tools to speed up development.
- Owning delivery end-to-end.
- Working in a high-performance fintech environment.
Requirements:
- UK-based.
- Available for contract work.
- Right to work in the UK.
- No sponsorship requirement.
- Day rate up to £700/day.
Full Stack Web Application Engineer – TypeScript / React / SQL in Slough employer: Siena Partnership
Join a dynamic fintech scale-up that values innovation and collaboration, offering a unique opportunity to work on bespoke web applications that directly impact business efficiency. With a strong focus on employee growth, you will thrive in a fast-paced environment that encourages the use of modern AI-assisted development tools, while partnering with senior stakeholders to solve complex problems. Enjoy a culture that promotes ownership, rapid iteration, and meaningful contributions, all while being rewarded with competitive contract rates.
StudySmarter Expert Advice🤫
We think this is how you could land Full Stack Web Application Engineer – TypeScript / React / SQL in Slough
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We think you need these skills to ace Full Stack Web Application Engineer – TypeScript / React / SQL in Slough
Some tips for your application 🫡
Showcase Your GitHub Projects:When applying for a freelance software engineering gig at Siena Partnership, make sure to include your GitHub link in your application. Highlighting your code repositories, contributions to Open Source, and any personal projects can really set you apart and give us insight into your skills and coding style.
Tailor Your CV with Relevant Skills:In software development, the specifics matter! Make sure your CV lists the programming languages and technologies you excel at. Focus on the ones that align with the projects Siena Partnership is working on. Listing your tech stack clearly will help us understand how you fit into our team.
Include a Portfolio of Your Work:A solid portfolio is a must when applying for freelance roles. Include links to any apps, websites, or software you've developed. Highlight any projects that reflect a strong user experience, efficiency, or innovative solutions—this is your chance to shine and show us what you can bring to the table!
Mention Your Availability and Rates:Since this is a freelance role, we want to know when you’re available and what your rates are like! Be upfront about your typical work hours and project timelines. This transparency will help us see if we can sync up for future projects at Siena Partnership.
How to prepare for a job interview at Siena Partnership
✨Showcase Your Code Wizardry
Since you're going for a freelance role in software engineering, have a solid portfolio ready to flaunt your best work. Include projects that highlight your coding skills, frameworks you excel in, and any problem-solving feats you've pulled off. This is your chance to shine, so choose pieces that reflect your unique style and expertise!
✨Prepare for Technical Challenges
Freelance gigs often involve tech assessments or coding challenges, so be ready to tackle some hands-on problems. Brush up on common algorithms, data structures, and any languages/frameworks relevant to the role at Siena Partnership. Being comfortable with platforms like HackerRank or LeetCode can give you an edge and showcase your skills under pressure!
✨Be Clear About Your Rates and Flexibility
As a freelancer, be prepared to discuss your rates upfront. It's crucial to communicate your pricing structure clearly and whether you're open to negotiation. Do your homework on industry standards to ensure you pitch a fair and competitive rate that reflects your skills and experience!
✨Understand Their Tech Stack
Before the interview, get familiar with the tools and technologies used at Siena Partnership. Whether it's a particular framework or a specific coding methodology, being knowledgeable about their tech stack not only shows your interest but also helps you present how you could fit seamlessly into their existing projects. Demonstrating you’ve done your homework can set you apart from other candidates!
