1 to 25 of 134 Python Software Engineer Jobs in London

Python Software Engineer Cyber Security

Hiring Organisation
Client Server
Location
London, United Kingdom
Salary
£ 70 K
Python Software Engineer/Developer London/WFH to 80kDo you have strong backend Python software development experience You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from advanced … cyber threats, working alongside a team of friendly and supportive people and enjoying a host of perks and benefits. As a Python Software Engineer within the R&D team you'll work on a new Greenfield product to combat the threat of AI based security attacks. ...

Python Software Engineer Cyber Security

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Python Software Engineer/Developer London/WFH to £80k Do you have strong backend Python software development experience? You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from … advanced cyber threats, working alongside a team of friendly and supportive people and enjoying a host of perks and benefits. As a Python Software Engineer within the R&D team you'll work on a new Greenfield product to combat the threat of AI based security attacks. ...

Lead AI Labs Software Engineer Python Developer Finance London

Hiring Organisation
Joseph Harry Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Lead AI Labs Software Engineer (Programmer Software Engineer Developer Python Amazon Web Services AWS Strands Agents AI LangChain LangGraph CrewAI Google AutoGen Pydantic AI Bedrock PydanticAI AgentCore ADK Azure GCP Cloud Asset Manager Buy Side Investment Management Fund Hedge Fund Finance Financial Services Banking Front … Office Trading Asset Manager) required by our client in finance in London. You MUST have the following: Advanced experience as a Python Software Engineer/Programmer/Developer Leadership experience for the delivery of projects from beginning to end- inception to production Excellent interpersonal skills Advanced design ...

Lead Software Engineer Python API - Fintech

Location
Greater London, England, United Kingdom
Lead Software Engineer Python API - Fintech London, Greater London | £100k - £120k per year Lead Software Engineer/Developer London/WFH to £120k Are you a skilled a backend focussed Python technologist with team leadership experience? You could be progressing your career … well-funded and profitable FinTech start-up. As a Lead Software Engineer you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There ...

Software Engineer Python SQL - Market Data

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
Software Engineer/Developer (Python SQL) London to 150k+Are you a data savvy Software Engineer with strong Python coding skills? You could be joining a Hedge Fund with complex work and substantial bonus earning potential. As a Software Engineer you will join … skillsYou have achieved a 2.1 or above in a STEM discipline, likely to have studied to MScWhat's in it for you: As a Software Engineer/Developer (Python SQL) you will receive a competitive package: Salary to 150kBonusPensionSelf development and career progression opportunitiesApply now to find ...

Backend Software Engineer Python LLM - Finance

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Backend Software Engineer/Developer (Python LLM MLOps) London/WFH to £90k Are you an experienced Backend Software Engineer with strong Python skills and a good knowledge of AI, LLMs and agentic coding? You could be progressing your career at a global finance … your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Backend Software Engineer you'll design and develop autonomous AI systems integrating multi-modal LLMs (text, image, audio, video), design agentic workflows enabling AI agents ...

Backend Software Engineer Python LLM

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Backend Software Engineer/Developer (Python LLM) Remote UK to £90k Are you a backend focussed Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider … senior, hands-on role. As a Backend Software Engineer you will build production grade AI systems and the infrastructure that supports them. This is a hands-on role where you'll take real ownership, make independent technical decisions and help shape the evolution of a conversational AI platform. ...

Lead Software Engineer Python API - Fintech

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
Lead Software Engineer/Developer London/WFH to 120kAre you a skilled a backend focussed Python technologist with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Software Engineer you'll head … Central London office with flexibility to work from home twice a week in a hybrid model. About you: You're an experienced Software Engineer with Python expertise and a strong knowledge of software engineering best practices and full SDLC experienceYou have team leadership experience, happy ...

Python Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, Greater London, UK
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 … global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python Software Engineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. ...

Python Software Engineer - Quant Trading Fixed Income

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Python Software Engineer – Quant Trading Fixed IncomeQuant Capital is urgently looking for a Quant Software Engineer to join our high profile client.rformance figures of 23%. They trade a number of products across equity and commodities in both high and low frequency strategies. They have … best funds globally. They use a combination of proprietary data, superior technology, and aggressive execution to achieve their trading objectives. This Quant Python Software Engineer role is to join a small team running their own Fixed Income Quant strategy; you will be an integral part of this ...

AWS/Python Software Engineer

Location
Greater London, England, United Kingdom
## AWS/Python Software EngineerApply: London UK: Full time: Posted Yesterday: End Date: October 2, 2026 (12 days left to apply): JR103994**Senior to Staff Software Engineer**We’re looking for an experienced Senior to Staff Software Engineer to join our Engineering team … happen.You’ll join a collaborative, high-performing engineering team working across multiple areas of the business. We build full-stack cloud solutions, with Python at the heart of our backend and a serverless-first approach using AWS services such as Lambda, DynamoDB, RDS and AppSync.We care about building things ...

Founding Software Engineer Python - Start-up

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
Founding Software Engineer (Python) to 115kAre you an ambitious full stack Software Engineer who thrives in early-stage environments where you can shape both the technology and the product? You could be joining a fast-growing AI start-up as one of its founding engineers … plans, you'll have the chance to make a genuine impact while working alongside experienced founders in a highly collaborative environment. As a Founding Software Engineer, you'll take ownership of the design and development of scalable, cloud-native applications, working across the full software development lifecycle ...

Software Engineer – Python/AWS/Terraform (SC or DV Cleared)

Location
Greater London, England, United Kingdom
Senior Software Engineer – AWS/Python/Terraform Active SC or DV Clearance Required | Government Programme | Contract | Inside IR35 Location: UK – hybrid/remote working, subject to project and security requirements Security Clearance: Current SC, enhanced SC or DV clearance is mandatory Engagement: Contract – Inside IR35 Sector … building modern cloud-native and AI-enabled digital capability within a highly technical AWS environment. The team are looking for an experienced Senior DevOps Engineer with strong AWS, Terraform and CI/CD experience who is also comfortable working with Python. This is not a purely infrastructure-support ...

Software Engineer, Python

Hiring Organisation
Enterprise Recruitment Ltd
Location
W2, Sheldon Square, Greater London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £90000/annum
across a variety of platforms. Their work spans everything from XR and interactive streaming to cloud-native media infrastructure. We are looking for a Software Engineer who is interested in applying Python engineering skills to real-world AI video processing challenges. To qualify for this role … need some commercial software engineering experience, good Python skills, an understanding of how video is processed and an interest in AI. Sound like you? Software Engineer essential requirements Commercial Software development experience. Python skills Experience building tested and maintainable software. Understanding of video processing ...

Senior Software Engineer Python AWS - Front Office

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
Senior Software Engineer/Developer (Python AWS) London/WFH to 130kAre you a Python technologist with experience of Front Office trading environments? You could be progressing your career on the Asset Management side of a global Japanese bank as they expand this product offering within … UK.As a Senior Software Engineer, you'll design, develop and enhance high performance trading systems and cloud infrastructure that support critical front, middle and back office operations. Collaborating with stakeholders across the business, you'll translate complex requirements into scalable, resilient technology that drives efficiency and business growth. ...

Python Software Engineer - Fintech

Hiring Organisation
Run-Time Group Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Senior Level Python Engineer is required to join a Fintech company developing next generation tools for how companies get funding and optimise their working capital. Our client aims to change how corporate finance works, by replacing static, limited and often stale financial metrics with live data-driven insights … sourced from direct connections to their clients systems. You will be joining a strong team of Python Engineers, Data Scientists, and financial experts, who are building the next generation of financial toolsscalable, secure, and smart. If you're an experience Software Engineer whose passionate about Python ...

Senior Software Engineer, Quant trading - Python, Java, C++

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Senior Software Engineer, Quant trading – Python, JavaLondon (Hybrid)130,000-175,000 + benefits and bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client. My client, a leading player in the global cryptoassets industry, is seeking a talented … Senior Software Engineer to join their dynamic team. This role will be instrumental in building and supporting a diverse technology stack, enabling my client to trade across multiple exchanges and regions with a wide range of strategies. As a Senior Software Engineer, you will work closely ...

Senior Software Engineer, Quant trading - Python, RUST, C++

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Senior Software Engineer, Quant trading – Python, RUST, C++London (Hybrid)150,000-180,000 + 50k bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client. My client, a leading player in the global cryptoassets industry, is seeking a talented … Senior Software Engineer to join their dynamic team. This role will be instrumental in building and supporting a diverse technology stack, enabling my client to trade across multiple exchanges and regions with a wide range of strategies. As a Senior Software Engineer, you will work closely ...

AWS/Python Software Engineer

Location
Greater London, England, United Kingdom
Senior to Staff Software Engineer We’re looking for an experienced Senior to Staff Software Engineer to join our Engineering team and help us build technology that’s changing the way people use and interact with energy. At E.ON Next, we’re tackling some … happen. You’ll join a collaborative, high-performing engineering team working across multiple areas of the business. We build full-stack cloud solutions, with Python at the heart of our backend and a serverless-first approach using AWS services such as Lambda, DynamoDB, RDS and AppSync. We care about ...

Software Engineer Python Django SQL - FinTech

Hiring Organisation
Client Server
Location
London, United Kingdom
Salary
£ 70 K
Software Engineer/Developer (Python Django SQL) London onsite to 80kAre you a data savvy Python Developer who enjoys cross team collaboration and has a keen interest in financial markets You could be progressing your career at a scaling FinTech, the core product is a private … equities/alternative investment management platform, they're well funded and enjoying great success.As a Software Engineer within a business facing role, you'll have the opportunity to work across multiple teams and projects. You'll tackle complex business processes, understand how different areas of the organisation operate ...

Senior Software Engineer (Python)

Location
Greater London, England, United Kingdom
SeniorSoftware Engineer (Python) About Anemoi Marine Technologies At Anemoi,we’reon a journey to shake up the maritime industry withcutting-edgeRotor Sail technology. From our headquarters in the UK and production base in China,we’redeveloping and delivering advanced, automated wind-assisted propulsion systems that help shipowners … environment by harnessing the power of wind! About the Role Contract Length: 3 to 6 months Location: London We are looking for an experienced Software Engineer to build on and lead the hands-on development of Anemoi's existing, early-stage scientific and engineering software ...

Python Software Engineer Cyber Security

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 Annual
Python Software Engineer/Developer London/WFH to £80k Do you have strong backend Python software development experience? You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from ...

Python Lead Software Engineer - Rates Live Risk & P&L

Location
Greater London, England, United Kingdom
environment is fast-moving and highly collaborative, with strong expectations for production ownership, rapid iteration, and high-quality delivery. Job Responsibilities Build and enhance Python services and applications that power live Rates risk and P&L, with a strong focus on low latency and predictable performance. Partner directly with … automation. Maintain strong engineering standards through code reviews, testing discipline, performance profiling, and clear documentation/runbooks. Required qualifications, capabilities, and skills Strong Python development skills, including writing production-quality code with solid testing and packaging practices. Experience building and operating production services, including production support and incident-driven ...

Backend Software Engineer Python LLM - Finance

Hiring Organisation
Client Server
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
Backend Software Engineer/Developer (Python LLM MLOps) London/WFH to £90k Are you an experienced Backend Software Engineer with strong Python skills and a good knowledge of AI, LLMs and agentic coding? You could be progressing your career at a global finance ...

Sr Lead Software Engineer - C++, Python,

Location
Greater London, England, United Kingdom
Lead Software Engineer - C++, Python, LONDON, LONDON, United Kingdom Locations 25 Bank Street, Canary Wharf, London, Greater London, E14 5JP, GB Job Schedule Full time Job Description If you are looking for a game-changing career, working for one of the world's leading financial institutions … come to the right place. As a Sr. Lead Software Engineer at JPMorgan Chase within the Commercial & Investment Bank Compute Runtime Platforms, you will play a crucial role in providing expertise and engineering excellence as part of an agile team. Your responsibilities include enhancing, building, and delivering trusted ...