Backend Developer Python jobs in London

Robert Half is recruiting for a AI Integration & Python developer/engineer Role for a 12 Month contract. \*\ This role is a 12 month FTC\ \ * ROLE: AI Integration & Python developer/engineer LENGTH: 12 Months FTC LOCATION: on site to start then 4 days a week. PAY: FTC The Role We’re working

Job Title: Python Developer / Data Engineer Location: London (Contract Role) Job Type : Contract Key Responsibilities & Skills: Tech Stack: Python | PostgreSQL | Azure Databricks | AWS (S3) | Git | Azure DevOps CI/CD | Apache Airflow Strong interpersonal and communication skills with the ability

Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest

Waracle are looking for a Lead Developer to join our world-class digital technology consultancy. We are home to a diverse, smart, curious, and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and customer

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

Role: Python full stack developer Location: London, UK (Remote) Experience: 4+ Any visas fine Role Description This is a full-time remote role for a Python Full Stack Developer. The role involves the design, development, and maintenance of web applications using front-end and back-end technologies.

The Central Execution Book (CEB) is a global effort to optimize the firm’s execution across business lines and asset classes. At a high level the CEB seeks to improve execution quality by reducing market impact and controlling information leakage, but the group’s mandate also includes the deployment

Role: Software Developer (Python) - Up to £140,000 + Bonus + Package Salary: Up to £140,000 + Bonus + Package Location: London (Hybrid Working) Skills: Python as a main language This firm is an elite tech firm with high standards who have previously set tech world records. They are made up of some e

At Modo Energy we’re building an AI platform for energy markets — combining LLM agents, retrieval pipelines, and real-time market data to create an AI analyst that can reason about complex energy systems. We’re an AI-native engineering team — everyone uses AI coding tools and many of the systems we

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Senior Backend Engineer (Python / AWS Serverless) London, N7 (Hybrid) £75,000 – £90,000 + Equity Deep Tech Scale-Up Sponsorship available – must be UK-based and able to attend site. Intro We’re partnered with a well-funded deep tech scale-up with a global footprint, currently scaling their internal

About us Finalto is a global provider of liquidity and trading technology solutions , serving institutional and B2B clients across global financial markets. With regulated entities in the UK, Singapore, Cyprus, Australia, and the UAE , Finalto combines global reach with deep expertise in financial m

Role: Mid-Level Backend Engineer (Python/Java) Positions: 2 Location: London / City (Hybrid - 3 days in office) Contract: Permanent or Contractor (Inside IR35) Opportunity Summary: Python Developer for Transforming Structured Notes Trading Join a high-impact initiative to re-platform a Tier 1 Invest

We are partnering with one of London’s most selective and highest-performing quantitative investment funds to appoint a Senior Quant Software Developer to their core systematic trading group. This is a confidential mandate for a team renowned for world-class engineering standards, scientific rigour,

Python Developer Day Rate: £400 Outside IR35 Duration: 6-months Start Date: ASAP (No long notice periods please) Are you actively looking for your next Python contract and ready to start within the next few weeks? We're working with a Data-Driven Technology Business who are looking for additional su

At Modo Energy we’re building an AI platform for energy markets — combining LLM agents, retrieval pipelines, and real-time market data to create an AI analyst that can reason about complex energy systems. We’re an AI-native engineering team — everyone uses AI coding tools and many of the systems we

InfoSec People Ltd

From £80,000 /year

Title: Node.js Backend Developer Salary: up to £80,000 + share options Fully remote (UK) Cybersecurity SaaS js Backend Developer to own production APIs and serverless microservices. You’ll work with senior engineers to design, build and operate secure, reliable services that protect users in real ti

InfoSec People Ltd

From £80,000 /year

Title: Node.js Backend Developer Salary: up to £80,000 + share options Fully remote (UK) Cybersecurity SaaS js Backend Developer to own production APIs and serverless microservices. You’ll work with senior engineers to design, build and operate secure, reliable services that protect users in real ti

Maven is a market-leading proprietary trading firm deploying its own capital across discretionary, systematic, and market-making strategies. Backed by deep expertise in trading, technology, and research, we are relentlessly focused on improving liquidity across global listed derivatives. Through adv

Requirements Must have: - At least 4 years of Python experience - Experience with TypeScript and JavaScript - Strong expertise in Python web development frameworks (e.g., Django) - Experience working in cloud environments such as AWS, Azure, or GCP - Experience with CI/CD tools and practices - Bache

Python Developer | Energy Trading House | London Hybrid | Up to £65k + Bonus + Benefits A Python Developer is required by a leading Energy Trader to support the front office of their hedge fund division. This is a quite unique opportunity because it is one where you will be working with all trading