Summary
An AI-first, high-growth B2B SaaS organization is modernizing an industry traditionally dominated by legacy tools and spreadsheets. We are seeking a Staff Software Engineer to drive backend strategy, guide technical decisions, and elevate engineering standards. You will define technical vision, lead critical backend projects, and shape everything from API design and system architecture to scalability. This role requires expert-level coding skills, strong experience in microservices and distributed systems, and cloud expertise to deliver high-scale backend solutions.
Highlights
Join an AI-first, high-growth B2B SaaS scale-up backed by recent significant investment. The role offers a competitive salary, equity, and strong benefits. Engineers are given real ownership, close collaboration with product teams, and the opportunity to solve technically challenging, high-impact problems.
Description
Staff Software Engineer | Series B | Scale up
Location : London (Hybrid)
Salary: £competitive + Equity + Strong Bens
Distributed Systems | API Architecture | Cloud | Microservices
I’m currently looking for: Staff Software Engineer (Python, Java, Kotlin, APIs, Typescript)
Our client is an AI-first, high-growth B2B SaaS company that's modernising an industry traditionally dominated by spreadsheets and legacy tooling.
They've recently raised significant investment, have a very strong engineering culture, and are building products where performance, data, and AI genuinely matter.
Engineers have real ownership, work closely with product, and solve technically challenging problems with a direct impact on customers.
ROLE: Staff Software Engineer (Software Engineering, Technical Leadership, Mentoring, Architecture Ownership)
We’re seeking a Staff Back End Engineer who can drive backend strategy, guide technical decisions, and elevate engineering standards across key product areas.
This is a senior engineering role - ideal for someone who wants ownership and architectural influence.
You’ll define technical vision, lead critical backend projects, and act as a trusted engineering voice in product and platform discussions - shaping everything from API design and system architecture to performance, resilience, and scalability.
What You’ll Bring
🔥 Expert-level Java/ Kotlin/ Python/ Typescript engineering skills - clean, scalable, production-grade code
⚙️ Strong experience building and designing APIs (REST, GraphQL, or gRPC)
🔧 Hands-on architectural depth - Microservices, distributed systems, event-driven patterns
☁️ Cloud expertise (AWS preferred) - Lambda, ECS, DynamoDB, SQS, SNS, API Gateway
🚀 Proven track record delivering high-scale backend systems
📈 Experience leading engineers - mentoring, technical direction, code standards
🗣️ Excellent communicator with the ability to influence product and technical strategy
🤓 Passion for robust engineering - testing, observability, optimisation, performance
Apply now and take a lead role building the foundations of one of the UK’s most ambitious scale ups.
