Data Engineer (FinTech)

Harnham - Data & Analytics Recruitment; City Of London; Hybrid; GBP 54,000 - 70,000; Full time

Job summary

Harnham - Data & Analytics Recruitment is seeking a Data Engineer in London with ownership of data infrastructure and decisioning systems powering a live lending platform. You will design, build and maintain production data pipelines across the lending lifecycle, including AWS Lambda-based decisioning processes and end-to-end ETL/ELT workflows.

The role emphasizes API development, data integration across sources, and strong focus on monitoring, reliability and production controls within a

Qualifications

• Python development.
• AWS services including Lambda, EC2, CloudWatch and RDS.
• SQL and database development, ideally with PostgreSQL.
• Building, deploying and maintaining end-to-end production pipelines.
• API development, integration and monitoring within live environments.
• Experience within Lending, FinTech, Banking or Financial Services.

Responsibilities

• Designing, building and maintaining production data pipelines across the lending lifecycle.
• Developing, deploying and maintaining AWS Lambda-based decisioning processes.
• Building and improving ETL/ELT workflows that support analytics, reporting and credit decisions.
• Managing APIs and data integrations across internal and external data sources.
• Improving monitoring, reliability, testing, documentation and production controls.

Skills

Python development

AWS services

SQL & PostgreSQL

End-to-end data pipelines

API development & monitoring

FinTech/Financial Services experience

Tools

AWS Lambda

PostgreSQL

REST APIs

Job description

DATA ENGINEER

Up to £70,000 + Benefits
London (Hybrid)This is a great opportunity to join a high-growth FinTech where you can take ownership of the data infrastructure and decisioning systems that power a live lending platform.

THE COMPANY:

Thisis a fast-growing FinTech lender entering an exciting growth phase, supported by new funding. Rather than relying solely on traditional credit scoring, the business uses a broader range of financial and income data to provide a more personalised lending experience.

THE ROLE:

You will take ownership of the infrastructure, pipelines and production processes that support the company's credit decisioning platform. Key responsibilities include:

• Designing, building and maintaining production data pipelines across the lending lifecycle
• Developing, deploying and maintaining AWS Lambda-based decisioning processes
• Building and improving ETL/ELT workflows that support analytics, reporting and credit decisions
• Managing APIs and data integrations across internal and external data sources
• Improving monitoring, reliability, testing, documentation and production controls

This is a unique opportunity to become a foundational engineering hire within a small, ambitious team where you will have genuine ownership and visibility across the business.

YOUR SKILLS AND EXPERIENCE:

• Python development
• AWS services including Lambda, EC2, CloudWatch and RDS
• SQL and database development, ideally with PostgreSQL
• Building, deploying and maintaining end-to-end production pipelines
• API development, integration and monitoring within live environments
• Experience within Lending, FinTech, Banking or Financial Services

THE BENEFITS:

You will receive a salary of up to £70,000 depending on experience, along with the opportunity to take ownership of a critical function within a rapidly scaling FinTech business.