1 to 25 of 1,305 Python Jobs in the City of London

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 role, you will be … 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 serverless … 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 YAML 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, and external data providers. More ❯

time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with React, Node.js, MongoDB, and SQL (Postgres, MySQL). Strong understanding of Git/GitHub, CI More ❯

AI Software Engineer | Python | AWS | Kubernetes | CI/CD | LLM | LangChain | UK, Remote About the Role As a Backend Engineer, you’ll play a central role in shaping a new product with a strong focus on AI Agents and machine learning systems. This position offers a unique opportunity to help design, build, and scale a product from the ground up … We’re Looking For Experience : 7+ years of experience in backend development. Backend Expertise : Strong skills in backend technologies, including API design, database systems, and server-side frameworks (e.g., Python). AI/ML Knowledge : Understanding of machine learning principles and experience integrating AI models (especially LLMs) into production systems. Familiarity with tools like LangChain or LlamaIndex is a plus. … tech companies and successful startups, including IPOs and acquisitions. Meaningful Impact : Help organizations tackle growing cybersecurity risks—work that contributes to safer digital environments for everyone. AI Software Engineer | Python | AWS | Kubernetes | CI/CD | LLM | LangChain | UK, Remote More ❯

MLOps Engineer | Python | Machine Learning | GCP | Kubernetes | CI/CD | Remote, UK About Us We are an early-stage biotechnology company using live cell imaging and artificial intelligence to predict stem cell behavior. Our goal is to improve the manufacturing of human cells for research and therapeutic use by enabling a deeper understanding of cell differentiation. Founded in 2022 as … infrastructure-as-code practices. Solid experience deploying workloads with Kubernetes, including cluster and node management. Familiarity with ML workload orchestration using Docker, Kubeflow, Ray, or similar tools. Skilled in Python and comfortable working with SQL and data processing tools. Understanding of the machine learning lifecycle from data ingestion to inference. Experience handling large-scale datasets and optimizing data pipelines. Strong … foundation of our product and accelerate both scientific discovery and therapeutic development. This is an opportunity to make a tangible impact during a pivotal stage of growth. MLOps Engineer | Python | Machine Learning | GCP | Kubernetes | CI/CD | Remote, UK More ❯

writing complex SQL queries. · Building ETL/ELT/data pipelines. · Kubernetes and Linux containers (e.g., Docker). · Related/complementary open-source software platforms and languages (e.g., Scala, Python, Java, Linux). · Experience with both relational (RDBMS) and non-relational databases. · Analytical and problem-solving skills applied to big data datasets. · Experience working on projects with agile/scrum More ❯

AI Tech Lead – Agentic AI, LangGraph, ML, Python, CI/CD, LLM’s, Startup, UK Remote About the Role A mission-driven, early-stage startup is looking for an AI Tech Lead to join its growing team. This is a hands-on leadership role where you’ll help shape a cutting-edge AI platform designed to drive real-world behaviour … Science, or related technical discipline. Strong communication skills and a bias toward action. Technologies You’ll Work With Experience in some or most of the following: Languages/Frameworks: Python, FastAPI, Pydantic, Streamlit (for internal tools) AI: AgenticFlows, GenAI, LLMs, and multimodal systems Architecture: Microservices, RESTful APIs, async programming Infrastructure: Docker, Terraform, GitHub Actions, GCP (preferred) Datastores: MongoDB, Redis Monitoring More ❯

Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | Household Name | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Opportunity: We're supporting a fast-moving client with national reach, that needs a Python Software Engineer Contractor with strong experience across Python & AWS. This is a freelance role within a tech-driven team – Where you’ll be the … subject matter expert, designing, implementing, and managing software, platforms and more. What You'll Be Doing as a Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Design and deploy scalable, high-performance software aligned with long-term business goals. Monitor and optimise distributed systems for reliability, uptime, and efficiency. … IT) to troubleshoot and enhance system performance. Maintain clear documentation for configurations, procedures, and troubleshooting. Ensure software meets design goals: performance, modularity, reliability, and maintainability. Core Skills for the Python Software Engineer, Python, AWS | Python, TDD & BDD, Monitoring | £650 - 750pd Outside IR35 | 6-month contract | Fully Remote (UK) Strong Python expertise, especially for API development and testing in cloud environments More ❯

About the job OPSWAT, a global leader in IT, OT, and ICS critical infrastructure cybersecurity, delivers an end-to-end platform that gives public and private sector organizations and enterprises the critical advantage needed to protect their complex networks, secure More ❯

A Mid - Senior level Python Engineer is needed to join growing software house in London who specialise in helping businesses reduce wasteful processes, costs and energy; and improve their ROI. sustainability meets profitability. 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 Backend Python Engineers, Data Scientists, and financial experts, who are building the next generation of financial tools. If you're an experience Software Engineer whose passionate about Python, excited by financial technology, and wants to solve complex problems, this could be for you. As a Python Software Engineer … in a supportive, fast-paced startup environment. Requirements: 1st class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion for automation and More ❯

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 that support financial services … 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 existing … 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 with More ❯

for someone ready to grow beyond a senior engineer/architect role into broader impact and ownership. 🔧 Tech Stack: Cloud: Azure (deep experience required), plus AWS and GCP Languages: Python Infra: Terraform, CI/CD, DevOps AI/ML: Experience with AI pipelines or products 🌟 What You’ll Be Doing: Architecting scalable, secure, and resilient cloud systems Leading and mentoring More ❯

Engineer Location: Remote (with occasional monthly collaboration days) Are you... A software Engineer with 5+ years experience, working with modern programming with one or more programming languages such as Python, Golang, Java, Ruby, TypeScript etc? Experienced working on cloud platform such as AWS, Google Cloud and have a good understanding of cloud infrastructure? Experienced working with Containers and Orchestration tools … means we are looking for engineers that have the ability to work across a range of tooling in the following areas: Programming: with at least one language; Go, Java, Python, Ruby, TypeScript etc Cloud: Either AWS, GCP, Azure Container/Orchestration: Docker, Kubernetes IAC: Terraform, Cloud Formation, CrossPlane, Ansible (Config Mgt) CI/CD: CircleCI, GitHub Actions, Jenkins, etc The More ❯

SQL, and other relevant services. Implement best practices for Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with API developers … implement DevOps best practices. Essential Skills & Experience: 10+ years of experience in data engineering, with at least 3+ years of hands-on experience with Azure Databricks. Strong proficiency in Python and Spark (PySpark) or Scala. Deep understanding of data warehousing principles, data modelling techniques, and data integration patterns. Extensive experience with Azure data services, including Azure Data Factory, Azure Blob More ❯

with at least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS More ❯

Experience building and maintaining full-stack applications, including backend APIs and frontend user interfaces. Experience developing world-scale/multi-tenancy applications Proficiency and commercial experience developing solutions in Python using Fast API and/or Django Experience with relational (MySQL, PostgreSQL) and non-relational (Elasticsearch, MongoDB, DocumentDB) data stores. Have first-hand understanding of Agile development methodologies. Exposure to More ❯

Job Title: Sr. DevOps Engineer Location: London, UK (3 days in office) SC Cleared: Required Job Type: Full-Time Experience: 5-8 years About the Role We are seeking a highly skilled and experienced Platform Engineer to build and maintain More ❯

Opportunity & Requirement Summary 📛 Role | Senior Backend Software Engineer (Python & Django) 4️⃣ Experience | 5+ years Python development experience 🔵 Company | Innovative SaaS Software Provider 📏 Size | 25+ employees 📍 Based | City of London (Office-based) 💰 Offer | £60,000 - £90,000 + share options + benefits Detailed Overview Kioni Talent is seeking an experienced Backend Software Engineer to join a rapidly growing SaaS provider in … the core platform that powers their innovative solution, collaborating with a talented team in a fast-paced environment. ⭐ What You'll Do Design and implement scalable backend services using Python and Django Collaborate with the team to architect robust solutions for complex business problems Write clean, maintainable code with comprehensive test coverage Participate in code reviews and contribute to technical … backend architecture and technical stack Help establish best practices and mentor junior team members Drive improvements in system reliability and performance 👩‍💻 What You'll Need 5+ years of professional Python development experience Strong experience with Django and RESTful APIs Solid understanding of database design and SQL Experience with unit testing and test-driven development Knowledge of cloud platforms (AWS/ More ❯

Experience: 10+ years Job Description: We are seeking a highly skilled and experienced Senior Python + Streamlit Developer to join our team. The ideal candidate will have over 10 years of experience in data transformation and a strong background in working with various data technologies and tools. The candidate should have experience in the ETRM domain and have worked on … throughout the data transformation process. Optimize and improve existing data transformation processes for better performance and scalability. Provide technical guidance and mentorship to junior developers. Mandatory Skills: Proficiency in Python and Streamlit. Experience with Streamlit for creating interactive web applications. Strong understanding of unit testing frameworks (e.g., pytest, unittest) Extensive experience with Azure Data Factory (ADF), Data Lake, Snowflake, and … like Allegro, RightAngle, Endur, etc. Excellent problem-solving and analytical skills. Strong communication and collaboration skills. Significant experience with ETRM projects. Strong knowledge of power trading concepts. Proficiency in Python, Streamlit, and Kafka. Strong understanding of real-time data processing and analytics. Preferred Skills: Experience with other data transformation tools and technologies. Knowledge of cloud platforms and services. Familiarity with More ❯

Senior Python Software Engineer/Developer London/WFH to £110k Would you like to join a growing and profitable start-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression? As a Senior Python Software Engineer you will architect and build highly performant and scalable … to work from home three days a week. About you: You are an experienced Software Developer/Engineer with a strong knowledge of modern best practice You have strong Python backend development skills, ideally also C# coding skills You have a good knowledge of AWS You have experience of working on highly scalable systems You have a strong knowledge of … and planning abilities You have business acumen and advanced communication/stakeholder management skills Fintech or Financial Services experience preferred What's in it for you: As a Senior Python Software Engineer you will earn a competitive package including: Salary to £100k Bonus (c20%) Pension (5% employer contribution) 25 days holiday (increasing to 27 after two years and 30 after 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 data team … 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 design More ❯

Data Science/Data Analytics, ML Consultant | International Consultancy, Fintech, | Python, SQL, GCP, | 2 Days Hybrid, Up to £70,000 +Benefits The Company: We have partnered with a boutique consultancy that partners with high-profile enterprise clients across industries such as retail, financial services, biotech, and technology. They’re currently looking to bring an Analytics Consultant on board to support … machine learning projects for major UK and European clients, including household names in retail and banking. Responsibilities for the Data Science/Data Analytics, ML Consultant | International Consultancy, Fintech, | Python, SQL, GCP, | 2 Days Hybrid, Up to £70,000 +Benefits Design, develop, and maintain automated analytics tools and large-scale data pipelines. Conduct deep-dive analyses to generate actionable insights … to tools like DBT, Apache Airflow, Docker. Experience working with large-scale datasets (terabyte-level or higher). Excellent problem-solving capabilities. Strong communication and collaboration skills. Proficiency in Python and SQL (or similar programming languages). Passion for uncovering insights through data. Growth mindset and a proactive approach to learning. What will you get in return? Direct exposure to More ❯

idea stage, through analysis, implementation, testing, production deployment, and maintenance. The team is international, and it's located in Krakow, Wroclaw and London Responsibilities Maintain and enhance the existing Python-based reporting system, ensuring stability and accuracy in regulatory reporting. Monitor, troubleshoot, and resolve issues in the current reporting workflows. Ensure that reports comply with regulatory requirements and meet audit … and enhance accuracy. Work with DevOps teams to ensure seamless Azure Databricks integration into the existing infrastructure. Skills Must have Databricks Concepts Databricks performance optimizations ACID properties of RDMS Python, PySpark SQL Concepts Databricks Queries and Visualization Exposure to CI/CD DevOps Pipelines Nice to have Azure Data Services ETL & Data Processing, Financial Data Processing, experience handling risk, compliance More ❯

include large Private Equity funds, Asset Managers, listed Corporates, high-growth tech companies and many more. Learn more about why we do what we do here. The role: Senior Python Developer Join our dynamic and growing team as a Senior Python Developer, where you'll play a pivotal role in the development of both frontend and backend systems. Working closely … for client order capture and reporting, currently built in TypeScript and server-side in Python3. Job requirements What we’re looking for: Requirements STEM Degree Very strong experience with Python Experience with Fullstack Development – using JavaScript & React Experience with PostgreSQL/other SQL Databases Desirable skills: Experience with Flask or similar framework Experience with Docker Experience with Cloud (Ideally AWS … developers, helping them improve their skills, learn best practices, and grow professionally. Communicating effectively with stakeholders to understand requirements and provide updates on project progress. Optimising the performance of Python applications, identifying bottlenecks and inefficiencies and implementing solutions to improve scalability, responsiveness, and efficiency. Staying updated on the latest trends, technologies, and best practices in Python development and software engineering 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, Grafana More ❯