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Senior Software Engineer

Senior Software Engineer

Hybrid

London, United kingdom

£ 125,000 /year

Senior

Full Time

08-12-2025

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Skills

Python Go Rust MySQL PostgreSQL Azure AWS cloud platforms C++ GCP

Job Specifications

Company | B2B, SaaS, Fintech

Size | 20 people

Stage | Seed

Role | Backend Engineer

Level | Senior

Tech | Python, GCP, PostgreSQL, ETL, REST APIs

Areas | real-time data infra, AI agents, product development

Based | Paddington, London

Working | hybrid (2-3 days a week in-office)

Offer | £110-125k + bonus + options

Hi

Workonomics are partnering with a recently-funded ($10m Seed) startup solving a complex technical challenge: how to build a reliable, high-integrity, cross-border data system that stays fresh, accurate, and queryable at scale.

They’ve spent the last two years building the foundations: real-time ingestion pipelines, a unified European data graph, and an agentic layer that turns noisy signals into clear, structured, actionable intelligence.

They're already trusted by leading fintechs, so this isn’t a hypothetical problem. The product is live, creating value, and actively reshaping how companies execute a key part of their business.

They’re hiring a Senior Backend Engineer (Python) to help:

build a robust, secure, resilient data ingestion layer capable of handling diverse and high-volume data sources
develop a performant scraping and parsing layer to reliably capture and structure data from the web and other external systems
deliver customer-facing APIs and developer-friendly documentation that enable a seamless self-service product experience
drive better reliability, scalability, and developer productivity

They’re looking for someone with experience in:

Python for building production systems
cloud platforms (GCP is ideal, but AWS or Azure also work well)
relational database modelling (PostgreSQL or MySQL)

Bonus points for:

familiarity with C++, Rust, or Go
experience scraping external data sources
exposure to the financial services / fintech domain

If this sounds like you, hit apply and I’ll share more details about the team, culture, and roadmap.

About the Company

WE HELP COMPANIES We recruit for tech firms of all shapes & sizes. Start-up | Scale-up | Grown-up We help companies attract game-changing technical talent. WE HELP CANDIDATES We recruit engineers across a range of disciplines. Software | Product | Infrastructure | Data | ML We help talented technologists find fulfilling mission-oriented work. Know more