Junior Python Developer (FinTech, FX Trading) - Perm

Lorien; Greater London; Hybrid; GBP 34,000 - 40,000; Full time

Job summary

A fintech startup in London is seeking a Junior Python Developer to help build a next-generation FX trading platform. You will develop and optimise platform components in Python, write SQL queries, and build REST APIs while working closely with Product and Operations teams. Ideal candidates have 1-2 years of commercial experience with Python and SQL, and possess a problem-solving mindset. This role offers extensive training opportunities and a clear growth path as the platform scales globally. Permanent position with a hybrid work model (3 days on-site).

Benefits

Professional training & certification support

Clear growth path

Qualifications

• 1-2 years of commercial experience in Python and SQL or strong projects/internships.
• Understanding of APIs, data modeling, and secure access controls.
• Right to work in the UK.

Responsibilities

• Develop and optimise platform components in Python.
• Write and tune SQL Server queries, views & stored procedures.
• Build REST APIs for internal/external integrations.
• Learn and contribute to event-driven pipelines.
• Apply IaC and contribute to CI/CD releases.

Skills

Python

SQL

APIs

Curiosity

Problem-solving

Clear communication

Tools

Kafka

Azure

Salesforce

Docker

Azure DevOps

Job description

Job Type: Permanent

Location: London

Salary: Up to £40000 per annum

Date Added: December 10th, 2025

Consultant: Heather Thompson

About

A startup fintech building a next‑generation FX trading & settlement platform – connecting onboarding, dealing, risk, settlement, reporting, and client portals into one system. This is an awesome opportunity to help build an FX Trading platform from the ground up.

The Opportunity

You'll create, build and deploy using Infrastructure‑as‑Code (IaC) while working across the full stack. Expect extensive training and hands‑on exposure to Azure and Salesforce, plus mentorship from experienced engineers.

What you'll do

• Develop and optimise platform components in Python
• Write and tune SQL Server queries, views & stored procedures
• Build REST APIs for internal/external integrations
• Learn and contribute to event‑driven pipelines (e.g., Kafka/RabbitMQ)
• Apply IaC and contribute to CI/CD releases
• Collaborate with Product, Operations & Compliance on mission‑critical features

What you'll bring

• 1-2 years' commercial experience with Python and SQL (or strong projects/internships)
• Understanding of APIs, data modelling and secure access controls
• Curiosity, problem‑solving mindset, and clear communication
• Nice to have: Kafka or message queues, Azure, Salesforce (Apex/Flows), Docker, Azure DevOps/GitHub Actions
• Build high‑impact fintech systems that move money & markets
• Professional training & certification support
• Clear growth path as the platform scales globally
• Right to work in the UK (sponsorship not available)
• Commutable to London for 3 on‑site days (Tue/Wed/Thu)
• Permanent only (no contractors)

Apply now

Send your CV (and GitHub if available) with the subject line: Junior Python Developer - Fiscal FX.