python engineer jobs in City of London

Job Description Job Title: QA Automation Engineer (Python / PyTest / Cosmos DB)-Banking Client Exp Required Location: London- 3Days/week Onsite Duration: 6months+ Contract Inside IR35 500GBP/Day Role Overview We are looking for a QA Automation Engineer to join a Pod-based delivery team working on critical applications and data platforms within a global financial market's environment. The...

Job Description SENIOR PYTHON ENGINEER LONDON £65,000 - £85,000 You’re a problem-solver who thrives on complex data challenges and wants to see your work make a measurable impact? Here’s your chance to join. Work with real-world ML datasets, cutting-edge data systems, and a platform that processes billions of events — all while helping shape how global advertisers protect their ad spend. THE...

You will be liaising with these clients too, understanding their projects and building the solution collaboratively. It's a hybrid working environment, with some need to travel to client site. Starting salary will be up to £130,000 plus a range of benefits that are continuously improving as the company grows.

Job Description Senior Software Engineer – AI Startup – Up to 120k 🚀🧠 💰 Salary: £70,000 - £140,000 + meaningful equity 🏙️ Location: London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack: Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being...

You will work in close collaboration with a highly-functioning team of software, electronics, algorithm engineers and product managers.

Job Description Python Software Engineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly scalable, ultra-low latency...

Senior Data Engineer (SQL Python Snowflake) London / WFH to £120k Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below. Do you have data expertise combined with technical leadership skills? You could be progressing your career in a hands on leadership role at a tech driven, global Asset Manager with multiple billions of...

If you like building Python systems that make machine learning research actually work at scale - this one's for you. You'll develop and improve the internal tooling that researchers rely on daily: distributed compute workflows, data pipelines, and robust infrastructure that connects research code to real environments - including hardware/prototype devices on-site. Find out if this opportunity is...

You will be responsible for building and maintaining business-critical systems, developing automation for deployment, monitoring, and incident response, and collaborating closely with developers, researchers, traders, and platform teams to improve reliability, performance, and scalability across the platform.

Job Description Senior Python software engineer - with strong Maths background Are you a software engineer who thrives on building robust, scalable products with a strong foundation in mathematics and analytics? We’re specifically looking for an engineer—not a data scientist—to join ScanmarQED as a Senior Python Software Engineer and play a key role in developing the core technology behind our...

Software Engineer – AI Role: Develop robust, scalable software systems supporting AI, robotics, and scientific applications. Build backend services, APIs, and integrate ML models, hardware, and data pipelines. Own the full software lifecycle: design, coding, testing, deployment, and observability. Collaborate with multi-disciplinary teams of engineers, scientists, and domain experts....

Freelance / FTC Opportunity – Python Automation Engineer We are looking for a Python Automation Engineer to join our team onsite at client’s London office on a freelance or fixed-term contract basis. The ideal candidate will have strong experience in mobile device automation (Android & iOS), solid programming skills, and a proactive, problem-solving mindset. 🔧 Responsibilities & Skills...

Safe Intelligence is on a mission to make AI safe and reliable for anyone to use. To help us succeed, our team is looking for a Senior Python Engineer, and we’re hoping it’s you! In this role! You'll help lead and implement the improvement of algorithms, optimising execution, usability, and package architecture of our ML Verification packages. Note that this is a Python code focused role, rather...

We are partnering with a leading hedge fund that is hiring a full stack engineer to join a high performing technology team supporting one of their key trading groups. The team builds advanced analytics platforms and internal tools using Python on the backend, with modern React and TypeScript driven frontends that help traders analyse markets, manage risk, and make informed investment...

Job Description A leading ESG Data firm focusing on AI is seeking a talented and experienced Lead Software Engineer to join their growing technology team in London. In this role, the successful candidate will play a key role in executing new projects and supporting existing applications that drive operational efficiency across the business. The role will remain hands-on, with responsibility for...

Job Description We're working with a rapidly growing Series A startup backed by top-tier VCs who are seeking highly skilled Software Engineer / Backend Engineer with deep expertise in backend development. This company is revolutionising how software is built and deployed and is at the forefront of AI-powered automation - they're creating innovative solutions that fundamentally change the...

You will have 20 work from anywhere days added on top which you can use to make soime weeks 2 days a week from home.

You will be proud to show how you’ve impacted other parts of a business and delivered results

You will be pushing frameworks and languages for good business reasons

AWS CLOUD ENGINEER REMOTE £This cutting-edge AI consultancy is a rising star among AWS partners , specializing in helping organizations build and scale innovative AI solutions. Focused on the gaming industry, they enable clients to do things like translating games in hours or designing AI-driven experiences tailored to specific demographics. As an AWS Cloud Engineer , you’ll work on high-impact,...

Job Description Software Engineer – AI Startup – Up to 85k 🚀🧠 💰 Salary: £50,000 - £85,000 + meaningful equity 🏙️ Location: London, flexible working arrangements, ideally 1/2 days in office 💻 Tech Stack: Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used across...

Job Description Senior Full Stack Engineer – AI Startup – Up to 150k 🚀🧠 💰 Salary: £80,000 - £150,000 + meaningful equity 🏙️ Location: London, hybrid 💻 Tech Stack: Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) 📈 Team size: 27 heads Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used across the globe and is...