1 to 25 of 40 Part-Time Python Developer Jobs in the City of London

Python Developer - Deeptech Startup Location: London (Hybrid, 2 days) Salary: Up to £120k Python Developer (Django, PostgreSQL, Docker) - We are seeking a highly skilled Python Developer to join our dynamic start up based in London. As a Python Developer in our team … you will be hands-on coding, designing solutions to difficult technical problems. This position is an extraordinary opportunity for an experienced Python Developer looking to advance their career in a fast-paced, high-growth startup environment. Our company's collaborative culture and commitment to innovation provide ample opportunities … for professional growth and progression. Our Python Developer will enjoy working on a backend code base including algorithms, data pipelines, APIs and ML models. Apply now for immediate consideration for this exceptional Python Developer opportunity! Understanding Recruitment is acting as an employment agency for this Python More ❯

Python Developer - Greentech Startup Location: London (Hybrid, 3 days) Salary: Up to £100k + Equity Python Developer (Django, FastAPI, Docker, AWS) - We are seeking a highly skilled Python Developer with a background in the energy sector to join our dynamic start up based in … London. As a Python Developer in our team, you will be hands-on coding, building out a brand new platform from scratch. This position is an extraordinary opportunity for an experienced Python Developer looking to advance their career in a fast-paced, high-growth startup environment. … Our company's collaborative culture and commitment to innovation provide ample opportunities for professional growth and progression. Our Python Developer will work effectively in a dynamic, fast-paced environment. Apply now for immediate consideration for this exceptional Python Developer opportunity! Understanding Recruitment is acting as an More ❯

Python Developer - Sustainability Start-Up Base Salary: Up to £80,000 per annum Location: London, Hybrid We are looking for a Python Developer to join an innovative sustainability start-up on a mission to help businesses measure, reduce and report their carbon emissions. This role offers … salary of up to £80,000 per annum, reflecting the importance of this position in driving the transition to a sustainable future. As a Python Developer, you will work on the core backend architecture of a cutting-edge sustainability platform. Your responsibilities will include designing and implementing scalable … with cross-functional teams to build a platform that empowers businesses to take impactful climate action. This is an exciting opportunity for an experienced Python Developer who is passionate about tackling climate change and eager to make a meaningful impact in a fast-paced, high-growth start-up More ❯

Senior Python Developer – Decarbonisation Start-Up Base Salary : Up to £110,000 per annum Location : London, 3 days in the office per week We are seeking an experienced Senior Python Developer to join our innovative team based in London. This role offers a competitive salary of … up to £110,000 per annum, reflecting the importance of the role in our mission-driven, high-growth environment. As a Senior Python Developer, you will be part of a team developing cutting-edge software that enables businesses to tackle one of the most pressing challenges of our … using your technical expertise to bring ideas to life. This is an exciting opportunity to work on meaningful projects, perfect for an experienced Senior Python Developer looking to contribute to a high-impact, fast-growth startup in the green technology space. Ideal candidates will have: Proven experience in More ❯

Senior Python Developer – GreenTech Start-Up Base Salary: Up to £100,000 per annum + Equity Location: London, flexible work from home We are seeking a highly skilled Python Developer to join our dynamic team based in London. This role offers a competitive salary of up … to £100,000 per annum, along with generous equity awards, reflecting the critical nature of the position in our high-growth environment. As a Python Developer on our team, you will split your time evenly between hands-on coding, building out a brand-new sustainability platform. Your role … closely with stakeholders to uncover business opportunities that align with our strategic environmental business goals. This position is an extraordinary opportunity for an experienced Python Developer looking to advance their career in a fast-paced, high-growth startup environment. Our company's collaborative culture and commitment to innovation More ❯

Role: Python Developer Projects : Trade Capture, Risk & PnL, Market Data, Analytics, Integration Workflows Industry: Commodity Trading Day rate: £700-750/d (outside IR35) Location: London (hybrid) Contract: 6 months (strong extension potential) X4 Technology are partnered with a global commodity trading firm looking for a skilled Python Developer to join their team front-office technology team on a contract basis. In this role, you will develop and support core systems covering trade capture, risk & PnL engines, market data ingestion, analytics tooling and integration workflows across multiple commodities Responsibilities of the Contract Python Developer (Commodities Trading) This is a fast-paced, high-impact role working in a desk-facing capacity. Responsibilities include: Develop and maintain Python-based systems focused for trade capture, risk calculation, pricing models and analytics Manage large datasets and integrate real-time market data feeds to support trading decisions More ❯

Senior Python Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Senior Python Developer (PYTHON/AWS/REACT). They are looking … this job Able to demonstrate commercial software development experience. Practical experience in system design, development, testing and operational stability. Deep knowledge and experience in Python and its ecosystem, patterns and pitfalls. Experience applying continuous delivery, test driven development and pair programming. Experience of working in an agile environment and More ❯

Python Developer -Build the Code £700 day rate Inside IR35 Location - London - 3 days onsite a week Duration - Until 31/12/2025 My client is looking for a Python Developer with Quant experience who will be responsible for building Python Code from scratch. … Risk Transformation Project – System and Tooling Workstream – Building Standard Code Library for Risk Market Risk Models and Credit – Interaction between the two teams – Quant Developer – Market Risk than Credit Risk. Building from the beginning – lots of IT Challenges – Python Code Migrating from library, tweaking, methodology. Skills: Quant Developer Python Scripting IT Architecture Experience Big Data Experience FS - Desirable More ❯

Synechron is looking for a Senior Python Developer to join their Data and AI Practice to work on a multi - year, AI programme of work within a leading financial institution. The role requires a talented and experienced Python Developer with hands-on experience in Python … with the Azure environment and related technologies. A solid understanding of event-based design patterns and RAG architecture is essential. Role: Develop and maintain Python applications that meet business requirements and technical specifications Collaborate with cross-functional teams to design, develop, and implement software solutions Utilise Azure services and … architecture Troubleshoot, debug, and optimise code to ensure high performance and reliability Stay updated with the latest industry trends, technologies, and best practices in Python development and cloud computing Experience: x5 years min proven hands-on experience with Python development Familiarity with the Azure environment and related technologies More ❯

Python Developer — Systematic Hedge Fund London | Hybrid | Full-Time | Competitive Compensation + Performance Bonus Digitech are partnered with an agile hedge fund using data, code, and rigorous thinking to generate investment strategies. Their focus is systematic investment strategies, and are looking for a Python Developer to … help scale their infrastructure and sharpen their edge. What you’ll do: Build and optimize their research and trading systems in Python Work closely with quantitative researchers to prototype and productionize new models Develop and maintain robust data pipelines and internal analytics tools Contribute to the evolution of our … tech stack and architecture What we’re looking for: Strong Python skills (incl. pandas, numpy, asyncio, etc.) A STEM degree from a reputable university Solid understanding of software engineering best practices Ability to work autonomously in a fast-paced, intellectually curious environment On offer Competitive salary Discretionary bonus Comprehensive More ❯

Python Developer - Front Office Technology (FX) We are looking for a talented Python Developer to join a global FX Options Technology team with one of the leading Global Investment Banks. Based in London, you will be part of a collaborative and innovative environment, supporting the FX More ❯

Python Developer – Commodities Trading | London (Hybrid) - 6-Month Contract | £650/day | Inside IR35 We’re supporting a major energy trading firm in their search for an experienced Python Developer to join their post-trade technology team on a 6-month contract. This is a key … requirements. Contribute to CI/CD pipeline enhancements and feature releases. Ensure solutions align with enterprise architecture and security practices. Essential Skills Hands-on Python development (must be in current or most recent role). Strong background in commodities trading or financial services (essential). Experience with AWS services More ❯

Python Developer – Contract – Energy Trading/Financial Services – London (Hybrid) Location: London (Hybrid – 3 days onsite) Rate: £550–£650/day (Inside IR35) Contract: 6 months initially Cititec is working with a leading energy trading firm that’s building a cutting-edge post-trade platform in AWS, and … they’re looking for a Python Developer to join their team. This is a hands-on role where you’ll be part of a fast-paced Agile environment, helping build out a platform that powers live intraday P&L reporting. You’ll be working alongside a cross-functional … CD pipelines to support efficient feature delivery Produce high-level designs aligned with infrastructure, cloud, and security requirements Key Requirements: Hands-on experience in Python development Confident building secure, scalable applications Agile mindset and strong team player Experience within the commodities trading or financial industry is essential Familiarity with More ❯

Python Developer – Hedge Fund/Trading Systems – London (Remote) Plexus are working with a strongly positioned, SEC regulated crypto hedge fund based in the USA. Their main hubs are in New York, San Diego and Singapore, with a London expansion slated for 2025. Their total AUM is … figures and is looking to grow exponentially. We are looking for a Python Developer to join their growing team. This role is remote-first, but for candidates based in London, with plans to open a London office by the end of 2025. Details as follows: Responsibilities Manage, maintain … and build trading systems, tooling and infrastructure in Python Work with high-tech trading systems, high-performance order management systems, back testing and algorithmic trading strategies Work cross-functionally within the wider engineering team (global, remote) as well as working towards scaling the London function Requirements 2-3 years More ❯

Python Developer – Global LNG/Energy Trading Location : Hybrid 2 days a week, central London Type : 6/12 months contract with extensions, Inside IR35 Industry : Energy Trading | Commodity Markets | Advanced Analytics Build the tech that powers the future of global energy. A leading name in global LNG … and energy trading is looking for a Lead Python Developer to join a forward-thinking product team delivering cutting-edge solutions in a rapidly evolving market. As the industry becomes increasingly digital and data-driven, we’re investing in top engineering talent to transform how trading decisions are … made — through speed, scale, and smart analytics. What You’ll Do Develop high-performance APIs and data applications using Python (FastAPI, Flask, Django) Design and deploy scalable solutions on Microsoft Azure cloud services Collaborate with trading desks, quants, and global engineering teams Deliver clean, modular web applications using ReactJS More ❯

Python Developer - Systematic Trading 12-months Contract (Outside IR35) Mayfair, London (Hybrid role) A leading European hedge fund is seeking a highly skilled Python Developer to join their systematic trading team on a contract basis. This is a hands-on, high-impact role that spans the … while driving enhancements based on new business needs • Contribute to a high-performance technology stack, optimizing performance and reliability at every layer Role Requirements: • Python (primary language) • Familiarity with C#, Rust • Experience with relational databases and messaging frameworks • Prior experience in systematic trading This is an exceptional opportunity to More ❯

We're looking for an experienced Python Developer, to join our team on a full time basis. If you'd like to be part of an in-house team, dedicated to providing unique and intricate software solutions, then please find the initial details below... Role: Senior Python Developer Salary: £60-£65k Location: London (Hybrid) Job Description Developing exemplary code in Python (Django) and JavaScript Working with cross functional teams including Designers, PMs and Researchers. Communicating with stakeholders and the SMT with regards to product updates and effectively relaying these to members of the Development … team. Requirements 5+ years Development experience Proficiency with Python & Django Proficiency with JavaScript Clear communications skills If you are interested, interviews will be starting from next week so please apply immediately More ❯

Senior Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a … this job Able to demonstrate commercial software development experience. Practical experience in system design, development, testing and operational stability. Deep knowledge and experience in Python and its ecosystem, patterns and pitfalls. Experience applying continuous delivery, test driven development and pair programming. Experience of working in an agile environment and More ❯

Job Title: Mid-Senior Full-Stack Python Developer (Financial Services) Location: London - Hybrid Salary: £60-£85k DOE Team: Data Engineering Reports To: Head of Data Engineering Industry: Financial Services Join a leading financial services firm specialising in OTC brokerage (FX, Swaps, Options) where data and technology drive everything … we do. We're looking for a proactive Full-Stack Python Developer to help us build and scale high-performance, data-intensive products in a fast-paced environment. Tech Stack & Skills: Python & Django (APIs, data pipelines) Front-end experience (React/Node.js) Azure cloud & large-scale data More ❯

Job Title: Senior Python Developer Location: London (Onsite) Salary: £90,000 – £110,000 + significant personal bonus My client is a growing fintech business led by a diverse team and built on respect for colleagues with a 'no ego' policy. They have built strong momentum in the financial … services space and are looking to hire a Senior Python Developer to take a lead role in shaping and delivering their product roadmap. This is a hands-on role suited to someone who enjoys working end-to-end — from interpreting business requirements to building scalable, production-grade systems. … be confident leading discussions around architecture and design, writing clean, well-tested code, and mentoring more junior developers. Key Requirements: 4+ years of professional Python experience Bachelors Degree in Computer Science or similar Strong software engineering fundamentals — testing, clean code, version control Experience working with large datasets and SQL More ❯

Python Developer - Python, AWS, TypeScript, AI + Bonus/Benefits - Remote in UK Do you want to join one of the global dropshipping tech leaders working with some of the biggest global brands and next to a team of incredible people? We're bringing out tech in … house and shaping the way ecommerce experiences are built We’re bringing in 2 Senior Python Developers to join our us and overhaul the technology major brands use for dropshipping globally. This is your chance to step into a pivotal role where your expertise will shape the backbone of … engine behind out products, ensuring they're scalable to withstand millions of concurrent users We’re looking for someone who’s comfortable working with Python and typeScript in an AWS environment, we use tools like CircleCI & Github Actions We use AWS for most of our cloud needs but do More ❯

Salary: Up to £90,000 per annum + Equity Location: London (Farringdon), Hybrid in office 2 days a month We are seeking a talented Python Developer to join a pioneering AI start up automating the legal side of property transactions worldwide. Our mission is to leverage the latest … in Generative AI and Large Language Models, placing us at the forefront of advanced technology in this field. As a Senior Python Developer, you’ll own the end-to-end development of new features, collaborating with cross-functional teams and contributing directly to a product that transforms the … way property is transacted globally. Ideal candidates will have: 4+ years of proven experience in Python, with experience in FastAPI and SQLAlchemy. Strong infrastructure skills using Terraform and familiarity with cloud services (especially Azure). Expertise in CI/CD, automated testing, and scaling applications. Excellent teamwork skills and More ❯

Job Title: Sr. Python Developer Location: London, UK (3 days in office) SC Cleared: Required Job Type: Full-Time Experience: 10+ years About the Role: We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of … our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Developer will be responsible for both front-end and back-end development, with a focus on Python, including the challenging but rewarding task of reverse … front-end frameworks (e.g., React, Angular, Vue.js) and ensure a seamless user experience. Develop robust and efficient back-end services and APIs using Python. Python Development: Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment. Utilise relevant Python libraries More ❯

Senior Python Software Engineer – London *Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship* A Senior Python Engineer is required for an exciting and innovative Software sports betting company based in London. The successful candidate will be working closely with the quantitative … tight-knit team of research mathematicians, computer scientists and trading analysts at the top of their chosen fields. The current team consists of one developer with 10+ years of experience, specializing in Python backend development. The team will grow in 2025. Essential Skills 5+ years’ experience in a … Software Development role, with some Python experience and a track record of building robust, high-quality solutions. 1+ year in a leadership position, with a history of successfully guiding teams and projects to impactful outcomes. Experience in designing and sustaining technical solutions that pragmatically address complex, real-world business More ❯

Backend Developer – Python £650/day – 6 months – Inside IR35 – 3 days onsite (London) Python – Kafka – AWS – TypeScript – Commodities Trading You'll be working for a leading energy trading business, building out a modern post-trade platform that's genuinely pushing boundaries – live PnL, intraday position reporting … digitised front office workflows. This is a business that backs its tech, delivers fast, and builds for the long-term. The must-haves: Strong Python experience (hands-on and recent) Experience building backend services in a product team Kafka or other message queue systems Comfortable working in fast-moving More ❯