1 to 25 of 47 Python Developer Jobs in the City of London

Job Title: Python Developer Location: London/Hybrid Job Type: Permanent Job Summary: My client are looking for a skilled and experienced Python Developer with a strong background in Django, SQL/PostgreSQL, and hands-on experience in the FinTech industry. The ideal candidate will play a key role in developing and maintaining robust backend systems … be able to write clean, scalable, and secure code and be comfortable working in a fastpaced, highly collaborative environment. Key Responsibilities: Design, develop, and maintain scalable web applications using Python and Django Build and optimise backend services, APIs, and database schemas for performance and scalability Work closely with product, design, and DevOps teams to deliver new features and improve … data security, compliance, and performance in financial applications Troubleshoot and debug production issues Participate in code reviews, sprint planning, and technical discussions Requirements: 4+ years of professional experience in Python development Strong expertise in Django framework Solid experience with SQL and/or PostgreSQL, including performance tuning and complex queries Prior experience in the FinTech industry is required Familiarity More ❯

talented developers to join our team and contribute to the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus 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 engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles … Develop user interfaces using modern 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 and frameworks (e.g., Flask, Django More ❯

NLP, computer vision, predictive analytics). Extensive experience with major cloud platforms (AWS, Google Cloud, Azure), microservices, containerization (Docker, Kubernetes), and DevOps/CI/CD pipelines. Skilled in Python, React, Typescript, Kubernetes, Azure, and OpenAI technologies. A natural problem-solver with a talent for leading, motivating, and inspiring teams. Excellent communication skills and ability to bridge technical and … Join us to shape the future of legal transactions with cutting-edge AI solutions! Apply today for immediate consideration. Understanding Recruitment is acting as an employment agency for this Python Engineer vacancy. More ❯

metals, and agricultural commodities globally. Our success is driven by cutting-edge analytics, high-frequency data processing, and a commitment to innovation. We are now looking for a Senior Python Engineer to join our dynamic team in London and drive our next wave of technological advancements. Role Overview: As a Senior Python Engineer, you will be at the … heart of our technology platform, building robust systems that enhance our trading strategies, risk management, and data analysis. You will collaborate closely with quants, data scientists, and traders, providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the … boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications for commodities trading, risk management, and real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms More ❯

Exciting opportunity for a Senior/Lead Python Developer with a background in Commodities Trading to join this Global Energy Company. This is an exciting time to be joining this world-leading company as they transform themselves from a traditional Oil & Gas company into a leading name within the Renewables sector. This includes the creation of an already … initiatives utilising the very latest technology. The candidate will have deep knowledge of physical commodities trading markets and organisations, specifically in LNG. Skills and Experience: • 8+ years of relevant Python Application development experience • Creating applications and packages with Python 3 • Writing reliable unit and end-to-end tests with PyTest • Experience working in fast- paced project delivery using … CI/CD, MS DevOps pipelines etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and Commodities, we offer a transparent More ❯

Job Title: Backend Python Developer Job Type: Permanent Location: London Salary: £55,000-£65,000 DOE Skills: Python, AWS, CI/CD, Docker Kubernetes, JavaScript Roc Search have partnered with a vibrant data focused agency in London. They are seeking an experienced Backend Engineer with a strong foundation in Python and object-oriented programming. In this … familiarity with cloud-based AI/ML services in Snowflake Cortex or DOMO AI would be a strong advantage. Key Reponsibilities Design and implement robust, scalable backend systems using Python as the primary language. Apply object-oriented principles and design patterns to maintain clean, maintainable code. Leverage cloud-native services (primarily AWS) including Aurora, Load Balancer, Security Groups, and … or equivalent practical experience). Proven experience as a Backend Engineer or a similar role, with a strong track record of designing and developing robust backend systems. Proficiency in Python and Javascript Familiarity with logging frameworks like Serilog for efficient log capturing and analysis. Experience with containerization tools like Docker and orchestration frameworks like Kubernetes. Knowledge of Helm and More ❯

Senior Python Engineer – Cloud & Data Orchestration 📍 Hybrid (1–2 days/week in office) | 💼 £140k+ Package | 🕵️‍♂️ Security-Cleared or Security Clearable required Location: London | Sector: Intelligence, Analytics & Secure Data | Process: 3 stages Our client is a mission-driven consultancy delivering high-impact intelligence, research, and technical services to governments and private sector clients globally and the brand are well … Background Senior/Lead/Founding Software Engineer, startup/hands on CTO, or Lead Architect experience, ideally in cloud-native or high-scale data environments Strong background in Python and relevant frameworks for data software applications Deep experience with Software Engineering, cloud deployments (especially AWS), and orchestration technologies Proven delivery of big data solutions—not necessarily at FAANG … the ground up, setting best practice and standards Experience leading and mentoring teams Worked in a startup/scaleup background and someone that is adaptable Tech Stack Snapshot Languages: Python Cloud: AWS preferred, cloud-agnostic approach encouraged Data: SQL, Databricks, Iceberg, Kubernetes, large-scale data pipelines CI/CD & Ops: Open source tools, modern DevOps principles Why Join? Impactful More ❯

Senior Python Developer Permanent £80,000- £90,000 (doe) London - Hybrid Seeking an experienced Senior Python Developer for a Permanent role based in central London.Hybrid working with the expectation of 3 days/week on site in London . Immediate start, ideally Summer 2025. A chance to work with a leading digital transformation business on large … scale IT modernisation programmes for government clients. Key skills, experience + tasks will include: Extensive hands-on experience with Python is essential, including a strong grasp of Core Python concepts. Proven expertise in deploying Python applications using CI/CD, along with proficiency in designing and implementing CI/CD pipelines in Cloud environments. Excellent practical expertise 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 researchers and alongside other extremely talented and driven engineers to … You will be joining a 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 challenges. Be hands-on: take on tasks, actively solve problems and contribute to delivery. Lead More ❯

Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid My prestigious financial services client is looking to expand their digital transformation team and require an experienced Full Stack Developer with strong Python & JavaScript to join them working across a range of new initiatives Core skills across Python and JavaScript with experience in Django … ownership of projects, from requirement gathering through to deployment - Mentor junior developers to support their technical growth. Skills & Experience: - Minimum of 3 years of experience as a full-stack developer across: Backend: Python, Django Frontend: JavaScript, React, Next.js Version Control: Git Beneficial Knowledge: - Azure - AI Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid More ❯

Python, FastAPI, Azure Hybrid working in Central London Pays up to £75k + equity Senior Python Developer - Python, FastAPI, Azure, LLMs My client are a high-growth start-up in the EdTech sector, who are leveraging AI on their platform, to deliver highly personalised experiences to their consumers. You'll be joining as the 3rd hire … with the CTO and other engineers to help scale their platform, and is an ideal role for someone who has demonstrated experience scaling systems in high-growth environments. Senior Python Developer - Python, FastAPI, Azure, LLMs Key skills and experience: Strong skills with Python Demonstrated experience with FastAPI Hands-on experience with Cloud technologies (Azure preferred, but … with 1-day a week required in their offices, paying £70k-£75k depending on skills and experience along with an equity package. Apply now to register your interest! Senior Python Developer - Python, FastAPI, Azure, LLMs 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, and 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 agile squads Experience in commodities or trading (preferred but not essential) Nice to haves (in order of priority – at More ❯

Python Developer Hybrid (1 day a week in London) | 🕒 Full-time Salary £65,000 to £95,000 DOE Are you an experienced Python Developer who loves solving real-world problems with clean, scalable code? Gravitas has partnered with an established Insurtech company that’s reshaping the future of insurance through data and automation. They are looking … to take on 5 Developers with a minimum of 2 plus years in backend Python, and experience working in business-to-consumer industries. (Please note this role will not be suitable for individuals with a solely consultancy background) 🔧 What You’ll Do Design, build, and maintain scalable backend systems using Python. Collaborate with product managers, data scientists, and engineers … and work with real-time data pipelines. Write clean, testable, and efficient code. Contribute to architectural decisions and code reviews. ✅ What We’re Looking For 2+ years of professional Python development experience. Strong understanding of RESTful APIs, microservices, and cloud platforms (e.g., AWS, GCP). Experience with frameworks like Django, Flask, or FastAPI. Familiarity with CI/CD pipelines More ❯

Job Summary: We are seeking a highly skilled Python Backend Developer with strong experience in building Microservices-based architectures and cloud-native server less solutions on AWS . The ideal candidate will be responsible for designing, developing, and maintaining scalable backend systems, ensuring high performance and responsiveness to requests from front-end applications and third-party systems. Key … Responsibilities: Design and develop robust backend services and RESTful APIs using Python (FastAPI, Flask, or Django) Build and deploy microservices that are scalable, loosely coupled, and independently deployable Develop and manage serverless applications using AWS Lambda , API Gateway , DynamoDB , S3 , SNS , SQS , and Step Functions Implement event-driven architectures and data processing pipelines Collaborate with front-end developers, DevOps … Infrastructure as Code (IaC) tools like CloudFormation or Terraform Monitor, debug, and optimize backend systems for performance and scalability Required Skills & Experience: 7+ years of backend development experience using Python Strong experience in designing and implementing microservices Hands-on experience with AWS Serverless services: Lambda, API Gateway, S3, DynamoDB, SQS, SNS, etc. Proficient in RESTful API design , JSON, and More ❯

Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £65,000–85,000 base salary + equity at a household name 📦 Flexible benefits budget | Monthly socials | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍Central London, 1 day a week 🧑‍💻 InsurTech | Microservices | Greenfield Development We’ve partnered with a well known name in the insuretech … maturity, and long-term growth potential. They're looking for a number of bright, engaging software engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI, Starlette) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across … exposure ✅ Deploying and owning your code in production (AWS EKS) ✅ Collaborating with product and engineering leads to solve complex problems Ideal Requirements: 🔹 2–5 years’ backend engineering experience (ideally Python, but open to other languages) 🔹 Experience in microservices or modern service architecture 🔹 Excellent communication skills and willingness to take initiative Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS More ❯

If you enjoy building meaningful tools with real-world impact — and care about AI being aligned with human values — this is the place to do it. 🛠️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems 🧠 What You’ll Work On Build … a user-centered mindset to technical work ✅ What We’re Looking For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem More ❯

Stack Engineer – AI Startup – Up to 130k 🚀🧠 💰 Salary: £80,000 - £130,000 + 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 the More ❯

Base 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 … Join us to shape the future of legal transactions with cutting-edge AI solutions! Apply today for immediate consideration. Understanding Recruitment is acting as an employment agency for this Python Engineer vacancy. More ❯

Python Quant Developer – Systematic Equities Team £800-£900/day inside IR35 | 6-month rolling contract | Hybrid (3 days in office) A major financial player is looking for a Python Quant Developer to support one of their systematic equities investment teams. This is a hands-on role sitting within the technology function, working closely with the … alpha generation. Key responsibilities: Work with MSCI and other structured data feeds – identify gaps, map schema changes, and ensure accurate downstream calculations Translate investment logic into efficient, production-grade Python code Optimise performance of existing quant models and analytics Manage and enhance data workflows – Snowflake, AWS, Python Liaise daily with investment professionals to understand requirements and deliver solutions … What we’re looking for: Strong Python developer with deep experience using statistical and numerical libraries (NumPy, pandas, SciPy etc.) Proven experience supporting quant or systematic investment strategies Good understanding of infrastructure – ideally AWS and Snowflake – and willingness to own setup and tooling Comfortable working in fast-paced front office environments with direct exposure to the investment team More ❯

Senior Software Developer (Python AWS) – London - £70,000 - £80,000pa JNC are working with a leading Financial Services clients in London that are looking to bring on a talented AWS Software Engineer who has extensive Python coding skills. This is a great opportunity to join a talented team of developers where you will be collaborating with a … driven decision making across the business. If your experience aligns with the below then APPLY NOW. Hybrid Working: 2 days a week in the office. Core Skills & Experience: Strong Python coding capabilities. Extensive experience building AWS serverless applications. Experience with AWS Lambda Experience with DynamoDB. Solid Principles Extensive experience working with Agile Experience with infrastructure-as-code and CI More ❯

Python Developer Location : Central London (Hybrid) Contract : Inside IR35 Length : 12 month (likely to be extended) Interview process : 2 stages twentyAI’s client, a global financial services institution, is looking for a Python Developer to join their Finance Technology team on a 12-month contract. This team supports the Finance Controllers organization with critical regulatory reporting … responsibilities and is currently focused on enhancing both a leading vendor platform (Axiom ControllerView) and a suite of in-house applications. Key Responsibilities: Develop, test, and maintain Python-based solutions supporting regulatory reporting workflows. Contribute to platform upgrades, software deployments, and integration with third-party tools. Identify opportunities to improve reliability, performance, and service quality across systems. Solve technical … Agile ceremonies and collaborate with engineers, analysts, and stakeholders. Ensure all development aligns with internal compliance and security standards. What We’re Looking For: Strong hands-on experience in Python with a solid foundation in OOP , data structures , and algorithms . Proficiency in Linux/Unix , command-line tools, and scripting. Familiarity with SQL and relational database systems (writing 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 development and be familiar 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 technologies to build scalable and efficient applications Implement event-based design patterns to enhance application functionality … performance Understanding of the RAG 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 Strong understanding of event-based More ❯

Senior Python Developer A multi-strategy hedge fund managing investments across various asset classes. They have grown into a global firm with offices in major financial hubs, including New York, Chicago, London, and Hong Kong. They have a very Data-Driven Culture with a heavy focus on technology, data science, and research. They're hiring for their enterprise … solutions. Understand and prioritize investment data needs. Collaborate with users and team members to refine requirements. Design high-performance data ingestion and delivery systems. Technical Skills: 7+ years with Python, Rust is a bonus Strong expertise in distributed systems Experience with event streaming platforms like Kafka . Familiarity with DevOps , CI/CD , and infrastructure-as-code . API More ❯

Job Title: Python Risk Developer Location: London/Bromley - Hybrid Remuneration: Daily rate from £600 Contract Details: Fixed Term Contract, 12 months Responsibilities: Join our dynamic team focusing on the FICC Emerging Markets deliveries, specialising in algorithm development and strategic framework creation. Play a crucial role in the development of the next-generation Risk platform for the Emerging … in a fast-paced, delivery-focused environment. What We’re Looking For: Previous experience at a tier-one bank or large financial organisation is a plus. Extensive proficiency in Python, including libraries such as numpy and scipy. Experience in Market Risk/Trader Risk development is highly advantageous, though not mandatory. Strong knowledge of Rates and Fixed Income products More ❯