Junior Software Engineer
<p>Fospha is the measurement system enterprise retail and ecommerce brands run their business on. We give marketing teams one clear, daily view of what's actually working — across every channel and everywhere they sell, from their website to Amazon and TikTok Shop — down to the level of a single ad or piece of creative. It replaces guesswork and gut feel with a number marketing, finance and agencies can all trust and act on.</p>
<p>Brands including Dyson, Gymshark, Adanola and Huel use Fospha up to 25 times a day to decide where budget should move next. We've spent over a decade building this, with more than $40 billion in marketing spend now optimised through the platform — and we're scaling fast across London, Mumbai and Austin.</p>
<p> </p>
<p><strong>About the role</strong></p>
<p>Fospha builds the products our customers rely on every day to make multi-million dollar media decisions. You'll work across the full stack — from frontend UI/UX through to backend services, databases, and APIs in Python — alongside engineers, product managers, and AI agents as part of our AI-first operating model. You'll have the chance to make real code impact across our technical stack from day one, with senior engineers supporting you as you build ownership.</p>
<p>This role suits someone with some hands-on software engineering experience (professional, placement, or strong personal/academic projects) who wants to go deeper. You'll take on interesting but achievable work with a supportive team structure and a company that rewards high agency with ownership.</p>
<p><strong>Team:</strong> Engineering</p>
<p><strong>Location:</strong> London</p>
<p> </p>
<p><strong>What you'll do</strong></p>
<ul>
<li>Deliver small-to-medium features independently — frontend UI in React/Next.js, backend services and APIs in Python, working with databases (Aurora PostgreSQL, DynamoDB) — with decreasing need for step-by-step direction</li>
<li>Write clean, tested code, and grow your ownership within a system area over time</li>
<li>Participate actively in code reviews and design discussions — giving and receiving candid feedback</li>
<li>Own bug resolution and act on QA feedback, improving test coverage as you go</li>
<li>Work with AI agents as part of our AI-first operating model, learning to write clear specifications that shape high-quality, AI-assisted engineering work</li>
<li>Collaborate proactively with product managers, designers, and fellow engineers to turn requirements into working software</li>
<li>Get involved across the full Software Development Lifecycle — planning, execution, release, and production monitoring</li>
<li>Start building the habits of ownership: consistent delivery, low rework, and steady, visible skill growth</li>
</ul>
<p> </p>
<p><strong>What we're looking for</strong></p>
<p><strong>Essential</strong></p>
<ul>
<li>Some hands-on software engineering experience — internships, placements, personal/open-source projects, or up to ~2 years professional experience</li>
<li>Working knowledge of React.js or Next.js, a solid foundation in Python, and some exposure to databases (SQL or NoSQL)</li>
<li>Comfortable being reviewed and iterating on feedback quickly</li>
<li>Genuine attention to detail and a real interest in why something broke, not just that it did</li>
<li>Curiosity about AI-assisted development and a willingness to learn spec-driven ways of working</li>
<li>Confident asking for help and pushing for clarity rather than staying blocked</li>
</ul>
<p><strong>Nice to have</strong></p>
<ul>
<li>Exposure to REST/GraphQL APIs</li>
<li>Familiarity with Git/GitHub and PR-based workflows</li>
<li>Some exposure to AWS or another cloud environment</li>
<li>Experience writing or maintaining automated tests</li>
<li>TypeScript experience</li>
<li>Interest in AI-assisted coding tools (we use Claude Code day-to-day)</li>
<li>Any exposure to Data Science / Data Engineering workflows</li>
</ul>
<p> </p>
<p><strong>What we can offer you</strong></p>
<ul>
<li>A £1,000/year flexible benefits allowance to put towards private medical insurance, dental cover, a health cash plan, gym membership, extra holiday, or a pension top-up — whatever suits you</li>
<li>Access to Wellhub, giving you one membership across gyms, boutique studios, and wellbeing apps</li>
<li>25 days' annual leave plus 8 UK bank holidays, an extra day off for your birthday, and more holiday the longer you stay (26 days after 3 years, 27 after 6)</li>
<li>Regular socials, free weekly snacks, and Lunch & Learn events at our Scale Space office, plus access to the wider Blenheim Chalcot community</li>
<li>Opportunities to travel — including to our India and North America offices</li>
<li>Life assurance worth 4x your annual salary</li>
</ul>
<p> </p>
<p><strong>Why Fospha</strong></p>
<ul>
<li>Real end-to-end ownership. You'll ship features that drive real budget decisions at brands you'll recognise, not just tickets in isolation.</li>
<li>A published career framework. No guessing what the next level requires or when you'll get there.</li>
<li>A team that reviews each other's work properly. Code review from people who care about getting it right.</li>
<li>An AI-first operating model where lean, high-autonomy teams ship fast and learn faster — with structured mentorship from senior engineers as you build that fluency yourself.</li>
</ul>
<p> </p>
<p><strong>Our Values and Principles</strong></p>
<p>You will be able to demonstrate examples of our core principles:</p>
<ul>
<li><strong>Seek inclusion & diversity:</strong> We create an environment where everyone feels welcome, and people are encouraged to speak and be heard</li>
<li><strong>Work Hard, Work Well, Work Together:</strong> We take responsibility for making things happen, independently and together; we help colleagues in need and close loops, making sure our work is complete and has lasting impact</li>
<li><strong>Grow:</strong> We are proactive, curious and unafraid of failure</li>
<li><strong>Customer at the heart:</strong> We care about the customer, feel their pain and love building product that solves their biggest problems</li>
<li><strong>Candour with caring:</strong> We deliver candid feedback with kindness and receive it with gratitude</li>
</ul>
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