At a Glance
- Tasks: Own the mobile buyer experience and build a unique marketplace app.
- Company: Innovative fashion tech company focused on sustainable secondhand commerce.
- Benefits: Competitive salary up to £170k, health benefits, and opportunities for growth.
- Other info: Dynamic London office environment with a focus on collaboration and innovation.
- Why this job: Join a mission-driven team transforming the fashion industry with AI technology.
- Qualifications: 4-8+ years in software engineering, expertise in React Native, and a strong product mindset.
The predicted salary is between 150000 - 170000 £ per year.
The fashion industry produces an immense volume of garments each year. A significant portion ends up in landfill, not because of a lack of demand, but due to an inefficient, offline supply chain for secondhand goods. We're changing that. Our mission is to make secondhand the first choice, building the AI‑powered infrastructure for global secondhand commerce. We've already saved millions of items from landfill, are growing rapidly, and are backed by leading VCs after a recent Series B.
This isn't a typical mobile engineering role. As a Staff Mobile Engineer, you'll join a small, senior Demand team in London, owning the entire mobile buyer experience for a marketplace unlike anything before it. This means building the product that converts intent into transactions, integrating proprietary AI models for item grading and discovery. It's not a feature factory; you'll shape product decisions, challenge design trade-offs, and define the mobile architecture for a hyper‑growth company.
The work
- Own the end‑to‑end mobile buyer experience, building and scaling the core marketplace app (browsing, discovery, purchasing) that directly drives GMV.
- Integrate proprietary AI classification models into the mobile product, translating complex grading and pricing into intuitive, fast, and trustworthy UX.
- Ship new features with craft and velocity, maintaining release stability, reducing crash rates, and optimising performance across devices.
- Work embedded with Product and Design, shaping product direction by challenging assumptions and bringing technical trade‑offs into early conversations.
- Build and instrument the mobile app for A/B testing and analytics, enabling data‑driven product decisions for the Demand team.
What You Bring
- 4‑8+ years of professional software engineering experience, having shipped production mobile apps that handle real users and transactions.
- Deep production expertise with React Native, including comfort navigating the boundary between React Native and native platform code.
- A strong product engineering mindset: you connect UI decisions to conversion outcomes and articulate the business problem your code solves.
- Experience building consumer or marketplace products at scale, with a keen eye for UI craft and performance.
- This role is based in London, requiring 3‑4 days in‑office (full‑time for your first six months).
Staff Software Engineer (up to £170k) in London employer: Dex
Join a pioneering company at the forefront of transforming the fashion industry, where your contributions as a Staff Software Engineer will directly impact our mission to make secondhand the first choice. With a vibrant work culture in London, we offer competitive salaries, opportunities for professional growth, and the chance to collaborate with a talented team dedicated to innovation and sustainability. Embrace the unique advantage of working in a rapidly growing environment backed by leading VCs, where your expertise will help shape the future of global secondhand commerce.
StudySmarter Expert Advice🤫
We think this is how you could land Staff Software Engineer (up to £170k) in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Dex or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Dex.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Dex.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Dex that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Staff Software Engineer (up to £170k) in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Dex.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Dex and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Dex
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Dex uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
