101 to 125 of 132 Python Developer Jobs in London

engineering how institutions handle short-term investmentswith clean code, smart automation, and a touch of elegance. Youll sit between the tech and operations worlds turning complexity into clarity. Your Python builds the logic that keeps everything flowing smoothly, from trade execution to data orchestration. What Youll Be Doing Building and designing systems that the financial ops team actually use … daily. Writing lean, reliable Python code that scales. Spotting inefficiencies and automating them before anyone else does. Collaborating across teams to translate business needs into solid engineering. Bringing ideas to the table Youre Likely Someone Who Has a STEM background and lives in Python. Loves solving real-world data and finance challenges. Enjoys seeing your work have measurable, immediate More ❯

maintain robust data pipelines. Integrate and manage market data feeds. Optimise data storage and retrieval processes for efficiency. Enhance and create advanced data visualisation applications. Requirements: Proficient in Software Python Development. 3-5 years experience in software engineering Experience with libraries/frameworks such as Pandas, Numpy, Scipy, etc. Skilled in data pipeline orchestration management libraries (e.g., Airflow, Prefect More ❯

maintain robust data pipelines. Integrate and manage market data feeds. Optimise data storage and retrieval processes for efficiency. Enhance and create advanced data visualisation applications. Requirements: Proficient in Software Python Development. 3-5 years experience in software engineering Experience with libraries/frameworks such as Pandas, Numpy, Scipy, etc. Skilled in data pipeline orchestration management libraries (e.g., Airflow, Prefect More ❯

the tools, frameworks, and processes we use • Taking part in code reviews and sharing ideas with the team • Continuously improving how we work in an Agile environment Tech stack Python | FastAPI | Django | AWS | Kubernetes | Terraform | PostgreSQL | OpenSearch | GitHub What we’re looking for • Strong experience building backend systems, ideally with Python • Good understanding of databases, data structures and More ❯

the tools, frameworks, and processes we use • Taking part in code reviews and sharing ideas with the team • Continuously improving how we work in an Agile environment Tech stack Python | FastAPI | Django | AWS | Kubernetes | Terraform | PostgreSQL | OpenSearch | GitHub What we’re looking for • Strong experience building backend systems, ideally with Python • Good understanding of databases, data structures and More ❯

in AI-driven automation software. You’ll join a team dedicated to pushing the boundaries of what’s possible in the trading world, using innovation to drive real results. Python AI/API Engineer – London What you will do Maintain and develop the AI offering, pioneering innovative approaches to achieve the company's vision. For example, integrating cutting-edge … and participating in code reviews. Keep abreast of new & developing technologies - championing/incorporating when appropriate. What you’ll need to succeed Minimum of 3+ years of experience with Python and major cloud providers (AWS, Azure, or GCP). Proven experience in building Rest APIs with frameworks such as Flask/FastAPI. Strong Experience in software development best practices More ❯

in AI-driven automation software. You’ll join a team dedicated to pushing the boundaries of what’s possible in the trading world, using innovation to drive real results. Python AI/API Engineer – London What you will do Maintain and develop the AI offering, pioneering innovative approaches to achieve the company's vision. For example, integrating cutting-edge … and participating in code reviews. Keep abreast of new & developing technologies - championing/incorporating when appropriate. What you’ll need to succeed Minimum of 3+ years of experience with Python and major cloud providers (AWS, Azure, or GCP). Proven experience in building Rest APIs with frameworks such as Flask/FastAPI. Strong Experience in software development best practices More ❯

Senior/Lead Hands on Full Stack Developer - React/Python London | Hybrid (3days in the office and 2 days from home) £110,000+ Equity | Full-Time | Start-up We're a high-growth start-up building a leading healthcare! Looking for a Full Stack developer who loves working across the stack - React on the front end … Python on the back end. You'll: Build responsive UIs in React Develop APIs & services in Python (either Django/Flask/FastAPI) Own features end-to-end Help shape our tech stack You have: Strong React & Python skills API & database experience A proactive, problem-solving mindset Ideally start-up or scale-up experience Why us? Big More ❯

Quantitative Developer – Trading – MLOps/Python A hedge fund is building out their AI capability and have an opportunity for a quantitative developer to play a key role in building out MLOps workflows and pipelines for the trading desks. This role is ideally suited to a software engineer or quantitative developer with experience delivery solutions directly … for trading desks, who has excellent Python skills, with a solid background in one of Java/C C#, who has experience building MLOPs pipelines for data scientists, AI engineers, quants, traders and leadership, to build strategic systems and enhance production systems. You should apply for this role if you are/have: 10+ years software engineering/quantitative … development within financial markets Excellent Python (NumPy, PyTorch, TensorFlow, Scikit); solid OO background in C++, Java or C# Strong MLOps and AI/ML model lifecycle experience Strong financial product knowledge and experience delivering solutions for trading/pricing Degree educated or higher in a relevant discipline from a leading academic institution This is an £800-900/day More ❯

Quantitative Developer – Trading – MLOps/Python A hedge fund is building out their AI capability and have an opportunity for a quantitative developer to play a key role in building out MLOps workflows and pipelines for the trading desks. This role is ideally suited to a software engineer or quantitative developer with experience delivery solutions directly … for trading desks, who has excellent Python skills, with a solid background in one of Java/C C#, who has experience building MLOPs pipelines for data scientists, AI engineers, quants, traders and leadership, to build strategic systems and enhance production systems. You should apply for this role if you are/have: 10+ years software engineering/quantitative … development within financial markets Excellent Python (NumPy, PyTorch, TensorFlow, Scikit); solid OO background in C++, Java or C# Strong MLOps and AI/ML model lifecycle experience Strong financial product knowledge and experience delivering solutions for trading/pricing Degree educated or higher in a relevant discipline from a leading academic institution This is an £800-900/day More ❯

are transparent is the core of Playtech's overall commitment to responsible business practices. Ready to level up your career? Playtech's GENBET UNIT is looking for a proactive Python Software Developer with excellent troubleshooting and problem-solving skills to join our Holborn office. Press play and let us design future technology together Job Description As a Software … Developer, you will be become part of a diverse, highly technical development team, where everyone's input is valued. Our main focus is on solving complex, data-heavy problems in the most efficient way possible. Our office of Software Engineers & Testers operate within a highly collaborative environment and we like to play each person to their strengths, ensuring they … our tech stack cutting edge where possible. Your role as a Software Engineer will be to create and maintain applications within our micro service architecture using a mix of Python, Docker, Kubernetes, Oracle SQL, MongoDB, Kafka and RabbitMQ. Experience in these specific technologies is highly desirable and it is essential to have experience in Linux environments, Databases and a More ❯

Work with our core technology stack, including Python , Linux (via WSL) , PostgreSQL , SQL Server , Databricks , and leverage both Azure and AWS cloud platforms. Design and implement advanced solutions for data ingestion , transformation , and large-scale orchestration of network I/O. Manage Infrastructure as Code and collaborate with infrastructure teams to deliver new features for CFC’s Engineering Platform. … Assess new data sources for completeness and accuracy to ensure suitability for specific applications. Contribute to CI/CD automation , optimizing for reliable, bug-free releases and an excellent developer experience. Maintain clear, high-quality documentation for both technical and non-technical audiences, starting with your code. Engage in a pairing-first development culture , sharing knowledge and learning from More ❯

Work with our core technology stack, including Python , Linux (via WSL) , PostgreSQL , SQL Server , Databricks , and leverage both Azure and AWS cloud platforms. Design and implement advanced solutions for data ingestion , transformation , and large-scale orchestration of network I/O. Manage Infrastructure as Code and collaborate with infrastructure teams to deliver new features for CFC’s Engineering Platform. … Assess new data sources for completeness and accuracy to ensure suitability for specific applications. Contribute to CI/CD automation , optimizing for reliable, bug-free releases and an excellent developer experience. Maintain clear, high-quality documentation for both technical and non-technical audiences, starting with your code. Engage in a pairing-first development culture , sharing knowledge and learning from More ❯

/ML solutions aimed at transforming healthcare. This is a 6-month contract , inside IR35 , offering hybrid working (3 days onsite). Key Responsibilities Develop robust backend systems for Python-based web applications Integrate AI/ML components with data, infrastructure, and frontend systems Deliver high-quality, well-documented, and thoroughly tested code Monitor and enhance performance of tools … and services Collaborate across technical teams to build end-to-end data pipelines Skills Required Strong Python backend development experience (FastAPI, Flask, Django). Proven track record of delivering production-grade software at scale. Experience with Docker and containerisation. Familiarity with cloud deployment and troubleshooting cloud-related issues. Comfortable working in modern cloud-native environments with CI/CD More ❯

Position Overview: We are seeking an experienced and passionate Software Developer to join our growing team. In this role, you will play a key part in designing, building, and maintaining Squarepoint internal frameworks, services and platforms that power our business. You will have the opportunity to work with cutting-edge technologies and make a direct impact on the efficiency … frameworks, and platforms that streamline operations across the organization. Collaborate with other developers and stakeholders to gather requirements, design solutions, and implement features. Write clean, well-documented, and testable Python code. Participate in code reviews and contribute to improving code quality and development processes. Troubleshoot and resolve technical issues in a timely and efficient manner. Stay up to date … with the latest Python technologies and industry best practices. Required Qualifications: 6+ years of professional software development experience. Strong proficiency in high-performance Python, with a deep understanding of its ecosystems and best practices. Prior experience with at least one JVM-based language such as Java, Kotlin, or Scala is a plus. Solid understanding of distributed systems principles More ❯

Position Overview: We are seeking an experienced and passionate Software Developer to join our growing team. In this role, you will play a key part in designing, building, and maintaining Squarepoint internal frameworks, services and platforms that power our business. You will have the opportunity to work with cutting-edge technologies and make a direct impact on the efficiency … frameworks, and platforms that streamline operations across the organization. Collaborate with other developers and stakeholders to gather requirements, design solutions, and implement features. Write clean, well-documented, and testable Python code. Participate in code reviews and contribute to improving code quality and development processes. Troubleshoot and resolve technical issues in a timely and efficient manner. Stay up to date … with the latest Python technologies and industry best practices. Required Qualifications: 6+ years of professional software development experience. Strong proficiency in high-performance Python, with a deep understanding of its ecosystems and best practices. Prior experience with at least one JVM-based language such as Java, Kotlin, or Scala is a plus. Solid understanding of distributed systems principles More ❯

costs and optimize return metrics. Who We're Seeking: We're on the lookout for a seasoned mid-level Software Engineer with up to 6+ years of hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas, Polars, Pytest, Postgres, and CI/CD is essential. If you're interested in Agile More ❯

costs and optimize return metrics. Who We're Seeking: We're on the lookout for a seasoned mid-level Software Engineer with up to 6+ years of hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas, Polars, Pytest, Postgres, and CI/CD is essential. If you're interested in Agile More ❯

We have an exciting new opportunity for a Senior Python Quant Developer to join a leading energy trading firm. This role will be part of the Optimisation Trading Analytics team, who are responsible for all Optimisation Models across all assets. The focus of this position is to improve the team’s existing analytical platform by identifying and implementing … enhancements to address performance and the applications stability. Strong Python programming ability is essential for the role, along with a firm understanding of energy trading markets, particularly UK/EU power. Key Skills Python OOP Flask, FastAPI SQL Energy market knowledge. This is a hybrid role, requiring 3 days a week in office. The salary is up to More ❯

We have an exciting new opportunity for a Senior Python Quant Developer to join a leading energy trading firm. This role will be part of the Optimisation Trading Analytics team, who are responsible for all Optimisation Models across all assets. The focus of this position is to improve the team’s existing analytical platform by identifying and implementing … enhancements to address performance and the applications stability. Strong Python programming ability is essential for the role, along with a firm understanding of energy trading markets, particularly UK/EU power. Key Skills Python OOP Flask, FastAPI SQL Energy market knowledge. This is a hybrid role, requiring 3 days a week in office. The salary is up to More ❯

days a week in the office, mandatory on Thursdays) Experience: Minimum 8-10 years Technical Skills: Proficiency in Java 8 (transitioning to Java 17) Retail banking experince Python Experience with Spring Boot 2.4 and above Knowledge of Continuous Integration Apigee Java Testing API experience If all the above skills match your profile, please don't hesitate to apply! Carbon60 More ❯

Imagine joining a fintech thats small enough for your code to make a dent yet backed by the kind of financial power that moves billions every day. This isnt another digital transformation project. Its about re-engineering how institutions handle More ❯

Senior/Lead Hands on Full Stack Developer - React/Python London Hybrid (3days in the office and 2 days from home) £110,000+ Equity Full-Time Start-up We're a high-growth start-up building a leading healthcare! Looking for a Full Stack developer who loves working across the stack - React on the front end … Python on the back end click apply for full job details More ❯

Python Developers Wanted DV/SC Cleared | Python + TypeScript + JavaScript | AI-Focused | London HQ | Office-Hybrid Areti Group is exclusively hiring for one of the fastest-growing AI-driven tech scale-ups in London. They've grown 290% this year alone, just secured a major investment, and are scaling fast with plans to grow to 100+ … employees by year-end. Now, they’re hiring x8 Software Engineers (Python-focused) to help power the next phase of product development, experimentation, and platform scale. 💥 A Company That’s Not Just Growing – It’s Exploding This is your chance to join the foundational engineering team building the future of AI — and do it in a culture obsessed with … solving deep performance and scalability problems, and working alongside some of the smartest minds in tech. 🧠 What You’ll Be Working On: Designing and building scalable backend systems using Python Collaborating on full-stack features with TypeScript and JavaScript Creating and integrating RESTful and GraphQL APIs Working with Docker, Kubernetes, and cloud infrastructure (AWS) Developing within a microservices architecture More ❯

Python Developers Wanted DV/SC Cleared | Python + TypeScript + JavaScript | AI-Focused | London HQ | Office-Hybrid Areti Group is exclusively hiring for one of the fastest-growing AI-driven tech scale-ups in London. They've grown 290% this year alone, just secured a major investment, and are scaling fast with plans to grow to 100+ … employees by year-end. Now, they’re hiring x8 Software Engineers (Python-focused) to help power the next phase of product development, experimentation, and platform scale. 💥 A Company That’s Not Just Growing – It’s Exploding This is your chance to join the foundational engineering team building the future of AI — and do it in a culture obsessed with … solving deep performance and scalability problems, and working alongside some of the smartest minds in tech. 🧠 What You’ll Be Working On: Designing and building scalable backend systems using Python Collaborating on full-stack features with TypeScript and JavaScript Creating and integrating RESTful and GraphQL APIs Working with Docker, Kubernetes, and cloud infrastructure (AWS) Developing within a microservices architecture More ❯