As the Lead Software Engineer, you will take primary technical ownership of the SOJO platform. Working directly with the leadership team, you’ll architect, build, and deploy full-stack features while leading AI/ML initiatives. This high-impact role offers the chance to scale a mission-driven platform serving over 10,000 active customers across Europe.
Lead Software Engineer at Sojo
Join Sojo.uk, a B Corp certified London fashion-tech startup making clothing repairs as simple as ordering a takeaway! Having scaled 15x in three years and launched in Selfridges, they are seeking a Lead Software Engineer to take full technical ownership. You’ll architect the platform, lead AI/ML feature development—including LLM booking assistants—and manage AWS infrastructure. With a salary of up to £85k plus equity, this role offers total autonomy and a front-row seat at a fast-growing, mission-driven company. Perfect for a pragmatic builder ready to lead a production environment serving 10,000+ active customers.
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Location
London, United Kingdom
Compensation
£70k-£85k + Equity
Company
Sojo
Role overview
Other
SOJO is a London-based fashion-tech company that operates a clothing alterations and repairs platform aimed at reducing the negative environmental impact of fashion. Through its website, it connects consumers and fashion brands with tailors and seamsters to provide door-to-door and in-store clothing repairs and tailoring, including item collection, alteration or repair, and return, helping extend garment life and improve fit. SOJO also offers plug-and-play repair infrastructure for fashion brands and retailers, enabling them to digitise and scale their repairs processes, power online tailoring and post-purchase care, and access sustainability and operational metrics to support circular fashion initiatives.
What you will do
- Architect and build full-stack features using Python (FastAPI), React, and Next.js to enhance the customer booking flow and automated studio operations.
- Own the cloud infrastructure and data pipeline, managing AWS services and overseeing end-to-end data flows using dbt, BigQuery, and Airbyte.
- Lead AI/ML feature development, implementing LLM-powered agents and computer vision for item identification to streamline the entire tailoring process.
Who this is a fit for
- Strong full-stack expertise: Proficiency in Python and JavaScript/TypeScript, with significant experience building and maintaining production-grade web applications in a startup environment.
- Strategic builder: A pragmatic engineer with a track record of making high-level architectural decisions and owning cloud infrastructure end-to-end on AWS.
- AI-forward mindset: Demonstrated interest or professional experience in building production AI features, such as RAG or vision-based tools, to solve complex operational challenges.
Why this role is remarkable
- Total technical ownership: As the primary full-time engineer, you will make the architectural calls, own the infrastructure, and shape the engineering culture from the ground up.
- Exceptional traction: Join a B Corp certified startup that has scaled revenue 15x in three years and established a permanent presence in world-leading retailers like Selfridges.
- Cutting-edge AI implementation: Lead the development of customer-facing AI booking assistants and computer vision tooling to revolutionize garment identification and the repair industry.
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I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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What happens next?
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Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Sojo wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.