20 of 20 Python Engineer Jobs in the Thames Valley

Principal Python Engineer Salary: Up to £130k + bonus Location: London (3x per week) I’m working with a global financial organisation that’s investing heavily in its data and cloud technology platform, and they’re looking for a Python Engineer to join their growing Investment Technology team. You’ll be: Building clean, scalable Python … data, investment, and engineering teams Shaping best practices across CI/CD, DevOps, and agile development What we’re looking for: 5+ years’ experience in software engineering (3+ in Python) Needs to have experience within financial services, fintech, or investment tech! Strong AWS and data engineering experience Solid understanding of APIs, SQL/NoSQL, and modern software design A … problem-solver who enjoys working closely with the business If you’re a Python engineer who loves solving complex data challenges in a collaborative, cloud-first environment — drop me a message: daniel.wexler@sourcegroupinternational.com THIS ROLE DOES NOT PROVIDE SPONSORSHIP More ❯

Systems Engineer, Python, AWS, COR7358 This is an excellent opportunity for a Python-focused Systems Engineer with strong AWS experience, to join an Oxfordshire-based scale-up in the MedTech sector. The Role The Systems Engineer will have two areas of primary focus: developing Python-based tools, components and automation to deliver features and … improve system reliability, and designing, implementing and maintaining AWS-based infrastructure and services to support business applications. Additionally, the Systems Engineer will build and manage IaC deployments using Terraform, will implement and manage configuration using Ansible, and will support and optimise Linux-based systems to ensure performance, security and scalability. The Company The Systems Engineer will be joining … learning 25 days' holiday, with the ability to purchase more Share options Private health insurance Wellbeing days What's required to be successful in this role? Proven proficiency in Python development for automation, tooling and systems integration Strong experience with AWS, particularly core services such as S3 and EC2 Experience building and maintaining infrastructure automation with Terraform Solid understanding More ❯

A Python Backend 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, you will contribute to the design, development, and delivery of scalable, high-impact features across our platform. You’ll work closely with experienced engineers, product managers, and data scientists to build reliable systems that solve complex financial problems. This role offers an excellent opportunity to deepen your technical expertise, take ownership of individual projects, and More ❯

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 markets, where technology and speed are paramount. They build and run highly … systems that compete across major 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. You’ll be directly contributing to systems that operate … trading infrastructure components. Partner with cross-functional teams to improve tooling, observability, and automation. Deliver robust, production-ready solutions in a fast-paced environment. Requirements Min 2+ years of Python experience in a professional setting (HFT, trading, fintech, or other high-performance domains). Exposure to C++ or willingness to work in multi-language environments is a plus. Familiarity More ❯

Senior Software Engineer – Python/Hardware Systems Do you want to build real-world machines that handle complex tasks with speed and precision. This isn’t app or web dev, it’s embedded Python, hardware integration, and system-level thinking. We’re looking for someone who writes robust code, understands how systems behave in the wild, and … knows how to push hardware and software to work together seamlessly. What you’ll be doing: Writing Python to interface with motors, sensors, relays, power systems, and I/O Designing and maintaining services that run on embedded Linux (often headless) Working with serial protocols (UART, I2C, SPI), MQTT, CANbus, Modbus etc. Handling real-time constraints, task scheduling, and … hardware behaviour Building automated test rigs and simulation tools to catch bugs early Optimising code for performance, memory, and reliability at the edge Tech you might use or encounter: Python (asyncio, multiprocessing, struct, ctypes, pytest) Linux (systemd, udev rules, shell scripting, device trees) Microcontrollers and SBCs (Raspberry Pi, BeagleBone, STM32, ESP32) Networking and messaging: ZeroMQ, MQTT, TCP/UDP More ❯

API Engineer (Python, FastAPIs) - 2/3 days a week in London numi are proud to be partnered with a technology company on a mission to make supply chains transparent and sustainable. They use earth observation and environmental monitoring to create a global data asset that will radically change how supply chain risk is managed. Our partner is … with a tight-knit founding team. This is a chance to join a high-growth startup and have a pivotal impact on the company’s mission. As an API Engineer , you'll be critical in ensuring complex data is easily accessible and consumable. You will design, build, and maintain robust, scalable, and well-documented APIs that power internal and … external applications. What You'll Do Build the Engine: Design, develop, and maintain high-performance, scalable, and secure RESTful APIs using Python, with a strong focus on FastAPI . Integrate Data: Build efficient data querying mechanisms from structured databases. Champion Best Practices: Uphold high standards for clean, maintainable, and well-tested code. Who We're Looking For You are More ❯

is pushing the boundaries of AI and data-driven software, developing next-generation tools that integrate advanced machine learning with scalable backend systems. They're looking for an experienced Python Backend Engineer to support the build and integration of key AI components across their tech stack. THE ROLE As a Contract Python Backend Engineer , you'll … take ownership of backend development for a Python-based web application, ensuring smooth integration with AI/ML pipelines and data infrastructure. You'll work closely with data engineers, AI specialists, and frontend developers to deliver robust, production-quality software. Key Responsibilities: Build and maintain Python web applications (FastAPI preferred) Integrate AI/ML components with backend, data … CI/CD workflows Monitor and improve performance metrics across deployed tools Collaborate with technical teams to develop end-to-end data pipelines YOUR SKILLS AND EXPERIENCE Essential: Proven Python backend development experience (FastAPI, Flask, or similar) Strong cloud experience (GCP preferred) and understanding of core web app infrastructure Skilled in automated testing (pytest) and modern DevOps tools (Git More ❯

Freelance/FTC Opportunity – Python Automation Engineer We are looking for a Python Automation Engineer to join our team onsite at client’s London office on a freelance or fixed-term contract basis . The ideal candidate will have strong experience in mobile device automation (Android & iOS), solid programming skills, and a proactive, problem-solving mindset. … Responsibilities & Skills Required Mobile Automation: Proven experience working on Android and iOS device automation . Programming Expertise: Strong proficiency in Python and Java — must have. Frameworks: Hands-on experience with Python or Java-based frameworks such as PyNum, PyTest, PyUnit, Django, PyCharm , etc. — must have. Debugging Tools: Familiarity with Android and iOS debugging tools (e.g. ADB , Logcat ) — nice More ❯

Platform Engineer London/WFH to £100k Opportunity to progress your career at a hugely profitable High Frequency Trading firm that specialise in crypto markets, in a hands-on Platform Engineer role. As a Platform Engineer you will join a small team responsible for the 24x7x365 globally distributed ethical web scraping function, supporting a multi-region high … Central London with flexibility to work from home twice a week (please note there is an on-call requirement). About you: You have commercial experience as a Platform Engineer, DevOps Engineer or SRE within an HFT, low latency or web scraping environment You have strong bash or Python scripting skills You have multi-cloud experience (AWS … following: Containerization (Docker/Kubernetes), monitoring tools (Prometheus/Grafana/ELK stack/Splunk), IaC tooling (Terraform, Ansible etc.) What's in it for you: As a Platform Engineer you will receive a competitive package: Salary to £100k Bonus (c50% of base) Pension Hybrid working Career progression Apply now to find out more about this Platform Engineer More ❯

Senior Data Engineer (Kafka Python AWS) London/WFH to £80k Are you a data technologist with fluent Python coding skills who enjoys working with and continually learning new technologies? You could be progressing your career in a senior, hands-on role at a "Tech for Good" company that is enabling life changing education to be accessed … by millions of students across the globe (currently 22 countries and growing). As a Data Engineer you'll help to design, build and operate the data pipelines and data services that power learning experiences. Collaborating with software engineers, data scientists and product managers, you will grow your expertise while contributing to systems that need to process … WFH: You'll join the team in London four days a week with flexibility to work from home once a week. About you: You have experience as a Data Engineer, working on scalable systems You have Python, Java or Scala coding skills You have experience with Kafka for data streaming including Kafka Streams and KTables You have strong More ❯

Software Engineer, AI, C Python, Oxford, COR7394 Are you a talented Software Engineer eager to explore the intersection of AI and manufacturing? This could be your opportunity to join a team helping shape next-generation tools using cutting-edge technology! The Position As a Software Engineer, you’ll work directly with a small team to develop … advanced analysis algorithms and integrate local large language models (LLMs) into real-world applications. You’ll focus on building robust software solutions using C++ or Python, contributing to Product Lifecycle Management integrations, and iterating on prompt-based AI applications. This is a hands-on role in a fast-moving environment. You’ll have the freedom to experiment, influence the … delivering practical solutions. This role is hybrid, with at least two days per week onsite in Oxford. Requirements Strong background in Mathematics, Physics, Computer Science Experience in C++ or Python software development Familiarity with Open Cascade C++ libraries Experience with Python LLMs or integration projects is beneficial Interested? Apply now! If you’re a curious, proactive Software Engineer More ❯

the great part is that you don't have to be as strong on the AI side as the true AI Engineers, your key impact will come on the Python side. Over time, you'll pick up the expert level skills in AI and vice versa for the others. So, with that, it'll be no surprise that you … re going to need to be a great Python software developer. Additionally, strong experience working with data and building microservices will also be a huge plus. Some experience with LLMs/GenAI will be necessary but you don't need to be an expert. You'll be joining a scale-up AI Consultancy who are working closely with clients … salary will be up to £130,000 plus a range of benefits that are continuously improving as the company grows. Want to build your AI skills whilst leveraging your Python development skills? Get in touch. No up-to-date CV required. More ❯

Software Engineer – AI Infrastructure | Up to £130K + Equity | London We're working with a stealth-stage AI infrastructure startup in London, founded by ex–Palantir engineering leads. Their mission is to help enterprises structure and automate messy internal data and processes, one of the biggest challenges businesses face AI today. They’re hiring a Backend Engineer (3+ … years’ experience) to take ownership of core backend systems end-to-end, from infrastructure to database design. Ideal Profile: Strong experience with Python and SQL Familiarity with FastAPI , Pydantic , and PostgreSQL Bonus: experience with lower-level languages such as Rust Role Details: Compensation: £80K–£130K + equity (0.1–0.3%) Location: On-site in London, 4/5 days per More ❯

UK) or surrounding areas Do you thrive on solving infrastructure challenges and designing resilient systems? Are you excited by the idea of being the first dedicated DevOps/Platform Engineer in a growing, high-impact team? Looking for an opportunity where your decisions shape the future of development, deployment, and monitoring infrastructure? A Unique Career Opportunity Our client is … seeking a Senior Platform Engineer to take ownership of a broad, stimulating technical landscape that blends infrastructure automation, monitoring, deployment strategy, and CI/CD tooling. You will be the first dedicated Platform professional in the team, stepping into a high-impact role previously shared between software engineers and IT specialists. This is your opportunity to shape foundational systems … DevOps, systems engineering, and infrastructure-as-code. The Stack You’ll Work With Here’s a flavour of the tools and technologies you’ll get your hands on: Languages : Python, Rust, shell scripting Automation : Ansible (preferred), Infrastructure-as-Code practices Monitoring : Grafana, InfluxDB (self-hosted) CI/CD : GitHub Actions, local custom runners for hardware-based testing Infrastructure : Docker More ❯

UK) or surrounding areas Do you thrive on solving infrastructure challenges and designing resilient systems? Are you excited by the idea of being the first dedicated DevOps/Platform Engineer in a growing, high-impact team? Looking for an opportunity where your decisions shape the future of development, deployment, and monitoring infrastructure? A Unique Career Opportunity Our client is … seeking a Senior Platform Engineer to take ownership of a broad, stimulating technical landscape that blends infrastructure automation, monitoring, deployment strategy, and CI/CD tooling. You will be the first dedicated Platform professional in the team, stepping into a high-impact role previously shared between software engineers and IT specialists. This is your opportunity to shape foundational systems … DevOps, systems engineering, and infrastructure-as-code. The Stack You’ll Work With Here’s a flavour of the tools and technologies you’ll get your hands on: Languages : Python, Rust, shell scripting Automation : Ansible (preferred), Infrastructure-as-Code practices Monitoring : Grafana, InfluxDB (self-hosted) CI/CD : GitHub Actions, local custom runners for hardware-based testing Infrastructure : Docker More ❯

backend services, integrations, and workflow logic for cutting-edge SaaS applications. Key Focus Areas: Work with automation-generated code and make it production-ready Build robust backend services using Python APIs and data workflows Create seamless integrations with external systems Champion AI-assisted development practices across the engineering team What You'll Do: Own backend features and API integrations … Python, FastAPI, gRPC, SQL) Adapt and extend auto-generated pipelines and front-end outputs Build connectors for APIs, files, and external systems Integrate LLM-based capabilities with robust evaluation and monitoring Champion AI-assisted development practices and tools Set up guardrails and context packs for AI-powered workflows Mentor team members on AI development best practices Help the team … AI tools Work closely with cross-functional teams including Solution Strategists, Data Platform, and Support teams Contribute to architectural decisions and technical strategy What We're Looking For: Strong Python backend/API development experience Solid SQL and data modeling capabilities A solid background within start-ups and able to work on multiple projects similtaneously Proven experience with integrations More ❯

you can use to make soime weeks 2 days a week from home. Please also note - sponsorship is not an option here unfortunately. The role As a Senior Software Engineer, you will: Understand complex business problems then propose and implement technical solutions Have input into the architecture, working closely with the Head of Technology and other senior team members … reasons You stay up-to-date with developments in AI and are comfortable using AI tools to boost your productivity and problem solving The tech Our core technologies are: Python on the server side, using Django as a web framework, and Django Rest Framework for our API Angular and TypeScript on the client side for our mobile apps and More ❯

a recent graduate, a career switcher or even have some commercial experience already. Whatever the case, you will be passionate about coding and excited to learn more. Stack includes: Python, dataclasses, Pandas, Polars, Pytest, Asyncio, Postgres, and AWS services such as ECS, Lambda and SQS - so experience with these technologies or alternatives would be helpful, but as long as … you have a good understanding of Python and are smart and keen to learn then we can consider you. It’s a test driven environment; TDD/BDD, pair/mob programming and CI/CD with automated tests & linting. We would not expect much (or any) experience with these techniques but curiosity about them would be great. This … company would invest a lot in you and would nuture your software engineering career. You would be surrounded by really smart and very experienced Python Developers who you would learn from. The team are smart and innovative but also friendly, humble and are excellent colleagues; its a great environment. Please apply here (stating your nationality and visa status; please More ❯

Role: Senior Backend Engineer (Product) Location: Hybrid - London Compensation: Up to £130,000 + equity We’re supporting a next-generation AI company developing a groundbreaking platform that automatically creates and scales immersive 3D environments. The team is bringing world-class technology from research to reality — turning complex creative workflows into seamless, intelligent systems. As a Senior Backend Engineer … product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in More ❯

closely with the C-Suite, who actively embrace feedback and will give you lots of freedom/autonomy. You will have real influence over the tech direction. The stack: * Python * Nuxt (Node & Vue.js) * PostgreSQL (though we prefer to use S3 and/or DynamoDB when we can) * AWS (ECS, Lambda, EventBridge, DynamoDB, S3, Aurora) * Terraform, GitHub Actions * Architecture is … team. What you'll bring to the table: * A track record of building maintainable, scalable services and systems * Significant experience (10 years plus) in Software Engineering with very strong Python skills * A natural aptitude for mentoring, for leadership and for nurturing the careers of those working with you (Associate, Mid-Level and Senior Enigneers) About the company: This is More ❯