Currently building at a UK investment firm

JamesSinclair.

Data Engineer & Analyst

Crafting robust data infrastructure, full-stack analytics platforms, and decision intelligence tools for a prestigious investment management firm.

Resume
Years
3+
in production data
Platform
Firm-wide
investment tool
Savings
£100k+
annually delivered
Stack
End-to-end
backend to frontend
01About

A builder in the seat of an analyst.

Three years working at the intersection of data engineering and investment analytics — translating fuzzy investment hypotheses into production-grade tools used every day.

James-Sinclair
James SinclairUK · 2026

Data Engineer & Analyst with 3 years of hands-on experience at a leading investment management firm.

I specialise in building end-to-end data solutions — from robust backends and APIs to intuitive front-end interfaces — that directly empower investment managers to make faster, better-informed decisions.

Data Infrastructure
Pipelines, warehousing, normalisation.
Full-Stack Builds
APIs, services, interfaces — end to end.
Analytics & Viz
Decision-grade visualisation.
Automation
Where days become minutes.
02Experience

The work, the impact.

Real systems built for real money. Each role below ships with the stack, the impact, and the why.

2023 — PresentCurrent· United Kingdom

Data Analyst — Heavy Data Engineering Focus

Prestigious Investment Management Firm
  • Architected and shipped a firm-wide internal investment decision platform now used by every investment manager across the firm.
  • Built end-to-end systems: ingestion pipelines, normalised data layer, REST APIs, and React-style front-ends — replacing several costly external vendor tools.
  • Engineered analytics and visualisation modules that directly influence multi-million-pound capital allocation decisions.
  • Automated previously manual reporting workflows; cut analyst turnaround on key reports from days to minutes.
  • Partnered with senior PMs and analysts to translate fuzzy investment hypotheses into production-grade data products.
PythonFlaskJavaScriptSQLREST APIsPandasPlotlyPower BIAWSDockerCI/CD
03Selected Work

Tools that move money.

A flagship internal platform plus systems in flight. More details available on request — much of this work is confidential.

04Capabilities

The toolkit.

A working set of tools across the stack — organised by where they sit, with a note on how I use each.

01 / Toolkit

Data Engineering

Pipelines, warehousing, orchestration.

SQL
Modelling, optimisation, window functions.
Pandas
Heavy daily use across analytics workflows.
Airflow
DAG-based orchestration in production.
PostgreSQL
Schema design, indexing, query tuning.
02 / Toolkit

Backend & APIs

Services, contracts, integration.

Flask
Primary framework for internal services.
REST
API design and documentation.
GraphQL
Schema design and resolver patterns.
Auth & RBAC
Role-based access in regulated contexts.
03 / Toolkit

Frontend & Visualisation

Interfaces analysts and PMs actually want to use.

JavaScript
Modern ES, async patterns, modules.
Plotly
Interactive financial visualisations.
Power BI
Executive-facing dashboards.
Tableau
Exploratory analytics.
04 / Toolkit

Cloud & Automation

Infrastructure, deployment, scheduled work.

AWS
EC2, S3, Lambda, RDS.
Azure
Functions, Data Factory.
Docker
Containerised dev and deploy.
Automation
Scheduled jobs, ETL, reporting.
05 / Toolkit

Programming Languages

Core toolkit.

Python
Primary language. Data, web, automation.
JavaScript
Frontend and tooling.
Java
JVM services and enterprise integration.
Bash
Glue, deploy scripts, scheduled jobs.
05Contact

Let's build something good.

Open to interesting conversations — full-time roles, contract work, or a coffee about data and finance.

Direct email

Drop me a line.

The fastest way to reach me is straight to my inbox. I read everything and respond personally — usually within 48 hours.

james_sinclair.97@outlook.com
Replies within 48 hours
LinkedIn
/in/jjefferys97
GitHub
@jjefferys97
Location
United Kingdom
Phone
+44 7712 273 434