Software Engineer: Platform and Backend (Mid-career / Senior)
Not disclosed
Salary
Not disclosed by employer
£54,700
Going rate
Skilled Worker going rate
This role may qualify for a Skilled Worker visa
SOC 2134 is an eligible occupation, but we classified this role with low confidence (41% match). If the code is right — and Theia Insights Ltd is a licensed sponsor — it should qualify, but double-check the occupation eligibility rules against the actual role.
About the role
About the role
Theia Insights builds foundational financial intelligence products, including industry classification, knowledge graphs and factor risk models, for institutional investors. We serve some of the largest asset managers, hedge funds, index providers and sell-side banks.
As an engineer on the Platform team you'll productise our data and build the ways customers access and work with it. You'll own the analytical services, APIs and MCP connectors that let customers query our data directly from the tools they already use, and build first-party applications powered by our data.
What you'll do
- Build and operate async REST endpoints (FastAPI, Pydantic) that serve large datasets reliably and quickly.
- Work with large tabular data in pandas, Parquet/Arrow and DuckDB, and manage the memory and performance trade-offs of moving big datasets efficiently.
- Own the identity and access layer, including AWS technologies for identity, authorisation and data distribution, supporting access to data through multiple channels.
- Design and build new access points for our data, such as APIs, analytical services and MCP connectors.
- Run services on AWS, with infrastructure in AWS CDK shipped via CodePipeline.
- Productionise code from the data and quantitative teams.
- Occasionally contribute changes to Theia Insights' TypeScript/React frontends that consume our API, particularly where a feature is simplest to own end to end.
- Take end-to-end ownership of reliability and performance, including graceful handling of failure modes.
This description is the source posting as it read when we added it. We are not affiliated with Theia Insights Ltd, so check their own site for the current details.
Where this offer sits in the market
SOC 2134 · UK · ONS ASHE 2025 · ~343k in sampleSimilar sponsored roles
See all jobsNo close matches live right now.
Browse more sponsored jobs at Theia Insights LtdAbout sponsorship for this role
Does this job guarantee visa sponsorship?
Not necessarily. Theia Insights Ltd holds a sponsor licence, but sponsorship for a specific hire is always the employer's decision. Be upfront in your application that you'll require it.
What salary is needed for this role to be eligible?
The offer must clear both the general threshold and the SOC 2134 going rate of £54,700. New-entrant and shortage discounts can lower it.