Staff Software Engineer

Staff Software Engineer | Series B | Scale upLocation : London (Hybrid)Salary: £competitive + Equity + Strong BensDistributed Systems | API Architecture | Cloud | MicroservicesI’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, performanceApply now and take a lead role building the foundations of one of the UK’s most ambitious scale ups.