You will lead the architectural design of a core AI-native platform, building high-scale agent-driven workflows to transform the accounting industry. Reporting to the Principal Engineer with direct CEO exposure, you will manage production-grade microservices and mentor a growing engineering team while bridging the gap between complex AI prototypes and reliable financial systems.
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Senior Engineer at Adsum Technologies
Adsum Technologies Ltd is building the 'Harvey AI for accountants,' and they are looking for a Senior Engineer to lead their AI-native platform architecture. With 1,000+ customers already onboard and backing from elite investors like Episode 1, this role offers a unique chance to build production-grade AI-agent workflows at scale. You will enjoy a £150k base salary, up to 0.6% equity, and a direct line to the CEO, all while working from a vibrant Victoria-based office in London with visa sponsorship available.
About this role
Role overview
About the company
Adsum Technologies Ltd
Finance
Adsum Technologies Ltd - VC-backed AI-native accounting platform
What you'll do
What you will do
- Lead the design and implementation of AI-native architecture using Python (FastAPI/Django) and AWS services like Lambda, SQS, and EKS.
- Translate complex AI prototypes into secure, highly-available production microservices, owning the entire lifecycle from deployment to real-time inference.
- Mentor a team of 4-6 software engineers, establishing cultures of technical excellence, CI/CD, TDD, and rigorous observability using Prometheus and Grafana.
Who you are
Who this is a fit for
- 8-15 years of full-stack experience in fast-scaling environments or category leaders like Revolut, with a focus on platform architecture and data infrastructure.
- Proven expertise in building and scaling AI-agent driven workflows and managing the unique challenges of non-deterministic, data-driven systems.
- Strong product delivery mindset with the ability to navigate complex compliance environments (ISO) while maintaining a rapid iteration cycle.
Why this role
Why this role is remarkable
- Significant equity upside (0.3% - 0.6%) in a high-growth startup backed by leading investors like Episode 1 and Digital Horizon.
- Rare opportunity to shape the "Harvey AI for accountants," building non-deterministic systems for a platform already serving 1,000+ customers.
- Direct influence on technical and product strategy through a high-visibility reporting line to the Principal Engineer and CEO.
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