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Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. This is entirely a Python back-end development role (Python 3), where the core framework used is FastAPI and Kafka for the messaging queues. Senior Backend Engineer | Python, FastAPI & Scaling | Security SaaS.

Senior Algorithm Engineer (Python / Spark – Distributed Data Processing). Senior Algorithm Engineer (Python / Spark – Distributed Data Processing). We’re hiring a Senior Algorithm Engineer to join a data-intensive SaaS platform operating in a complex, regulated industry.

They are looking for an experienced Python Developer to join the core engineering team and help shape the design, build and deployment of this platform. Develop high-quality Back End services using Python. Strong commercial experience with Python.

We are seeking a highly capable Python-focused Data Engineer to join a delivery-driven team building and supporting complex data platforms in Azure. This role is heavily weighted towards Python software engineering rather than traditional ETL-only work. Strong Python fundamentals, testing discipline

Machine Learning Engineer (Python / MLE ). Extensive Python: Very strong, production-level Python coding and debugging skills. We are looking for a number of MLE / Machine Learning Engineers for a critical 6 month contract with a household name.

Architect complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers Principal Python Software Engineer Hybrid - commutable distance of the Southampton area Circa £65k + Up to 15% BonusThe Role As a Principal Python Software Engineer, yo

Senior ML Operations Engineer (Python)Salary: Up to £66,000 depending on experience Location: Manchester - (Hybrid working - currently 40% on site increasing to 60% within 12 months)Ref: J13060We are seeking a Senior ML Operations Engineer to take ownership of how machine learning models are deploy

Candidates should have experience in trading technologies, Linux, and programming languages like Python and Shell scripting. A global financial institution is looking for an experienced Software Engineer and Integration specialist to join their team in London.

Oversee the work of 2–3 software engineers, ensuring task alignment, code quality, and timely delivery. Capable of managing and mentoring small engineering teams. Bachelor degree in Computer Science, Engineering or other Technical Degree.

Senior Analytics Engineer (Python, SQL, Asset Management). Mid Back End Engineer (Python & GCP).

Python Software Engineer (with AWS cloud experience). Python Software Engineer with AWS cloud experience. Software development experience in one or more general-purpose programming languages, such as Python, and expected to be hands-on with software development tasks.

A technology-enabled advisory firm is seeking a Junior Back-end Software Engineer to design and maintain systems for their award-winning platform. Ideal candidates should have a degree in a relevant field and experience with modern programming languages, particularly Rust and Python.

A leading technology firm in the United Kingdom is seeking an experienced Python Data Engineer to modernize data platforms and build scalable solutions. Key qualifications include strong Python and SQL skills, experience with systems integration, and familiarity with cloud platforms.

A leading fintech company in Greater London seeks a Senior Python Engineer to design and develop automation for core financial operations. The ideal candidate has over seven years of experience in software engineering, strong skills in Python and SQL, and the ability to collaborate effectively with

An innovative EdTech start-up is seeking a skilled Python Engineer to join their team. A strong background in Python with familiarity in MongoDB is essential.

A software development company is seeking a mid-senior level Python Software Engineer specializing in Android and iOS device automation. The ideal candidate has substantial experience using Python and Java, along with a thorough understanding of Linux commands.

A public sector technology firm in London is seeking experienced Software Engineers specializing in Python to contribute to critical national infrastructure projects.

A fast-growing fintech startup is seeking a Python Software Engineer to build AI-driven financial technology products. The ideal candidate will have strong commercial experience with Python and backend systems, and show a proactive mindset towards AI development.

A tech company in the East Midlands seeks an experienced embedded engineer to design niche test and automation solutions. The ideal candidate will have over 5 years in embedded C/C++ software development and software engineering experience on GNUs/Linux. Additional experience with Python, git and st

The ideal candidate should have 3-6 years of software development experience with strong skills in React and Python, as well as a background in Computer Science.

A financial technology company in the UK seeks a Senior Software Engineer to enhance their production trading systems. The ideal candidate will have extensive Python experience and a track record in developing real-time performance-critical systems. Responsibilities include owning a production codeb

As a member of our Software Engineering Group, we look first and foremost for people who are passionate around solving business problems through innovation and engineering practices. We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As

A global financial institution is seeking a Senior Java/Python Engineer to develop high-impact backend systems in AWS, focusing on cloud-native architectures and AI-driven solutions. Candidates should have strong experience with Java and/or Python, as well as exposure to AI/ML platforms. Join a long

A high-growth global software business is seeking a Senior Software Engineer for a remote-first position. Candidates should have strong skills in Python and web frameworks like Django.

A leading trading firm in the Greater London area is seeking a Software Engineer for 2026 graduates. Candidates should have skills in C++ or Python and a strong educational background in computer science.

They’re expanding their core engineering team and are seeking a Python Software Engineer to help design and build the next generation of research, data, and trading infrastructure. Are you a world-class Python engineer ready to push your technical limits in one of the most intellectually rigorous

Actively contributes to the engineering community as an advocate of firmwide frameworks, tools, and practices of the Software Development Life Cycle. Experience in Computer Science, Computer Engineering, Mathematics, or a related technical field. Linux: understands the OS architecture, fluent user o

A fast-growing AI start-up in London is seeking a Cloud Engineer for their platform/DevOps team. The role requires expertise in AWS or GCP, Kubernetes experience, and strong scripting ability in Python.

A global financial services company is seeking a skilled Python Developer to enhance their backend systems and develop new features using Python and React. Candidates should have extensive Python knowledge, experience with frameworks like Django, REST APIs, and Docker.

A financial services firm in Greater London is seeking a skilled software engineer to develop and enhance their investment reporting platform. The successful candidate will have over 5 years of experience with Python and Django, be involved in the full software life cycle, and collaborate with vario

A leading automation software company in Greater London is seeking a systems-level engineer to build its core machine learning platform. Ideal candidates will have at least 5 years of experience, deep knowledge of Rust and Python, and familiarity with cloud services.

Up-to-date knowledge of the Python ecosystem: third party libraries, packaging in-built Python libraries. Collaborate with other engineers, traders, and researchers to design custom frameworks or end-user solutions. Bachelor’s or Master’s degree in Computer Science or related Engineering discipl

The Trading and Risk Management System (TRMS) team is responsible for developing, supporting and maintaining our front and back office trading web applications using Python, the proprietary Beacon Dependency Graph and Glint, the Beacon UI framework. This engineer should be able to effectively commun

We mostly use Rust and Python, but we are keen to speak with strong engineers from any background. The back-end team is part of the broader technology team working in collaboration with quants, frontend and platform engineers. Solutions are built in Rust and Python (with Django/FastAPI web framework

The ideal candidate has strong proficiency in Python and experience mentoring junior engineers. A high-performance media agency in the UK is seeking a Senior Engineer to enhance internal client-facing teams by building tools. You will take ownership of features, developing solutions with Python and

We’re looking for a Senior Python Engineer to join our AI Engineering & Infrastructure team to bring our latest AI-driven features and services into production. Collaborating with AI engineers to ensure smooth deployment of AI workflows and models into production. Strong Python experience in build

A leading consulting firm is seeking a Software Engineer to join a global finance team within an international bank located in Canary Wharf. Ideal candidates must have extensive experience in software applications, knowledge of Python, Kubernetes, and Docker, along with commercial experience in the

The role involves remote collaboration with a global team, committing to high-quality code and automated testing, and requires strong proficiency in Python and experience with frameworks like Flask or Django.

The ideal candidate has a Bachelor's in Computer Science and 3+ years of experience, particularly in Python and web applications. A leading technology company in Greater London is seeking a Backend-focused Software Engineer who will design and improve software solutions for the hospitality industry.

A leading financial institution in Greater London is seeking a Lead Software Engineer to drive analytics innovation and lead a talented team.

A leading software testing company in Greater London is seeking a Graduate AI Test Automation Engineer to support the development of an innovative testing framework for generative AI agents. Ideal candidates should hold a degree in Computer Science or AI and possess strong Python skills alongside a

A leading analytics firm in the United Kingdom is seeking a Software Engineer to develop and maintain trading and risk management applications. The successful candidate will have a strong background in Python and will focus on delivering quality code while collaborating effectively with clients and

Utilize best-in-class technologies such as Python, Java, and React/Redux.

Candidates should have expertise in Python-driven UI frameworks, CI/CD pipelines, and Docker. This opportunity supports applications across customer portals and analytics-driven engineering platforms. The role involves building Python-based applications, collaborating with cross-functional teams, an

I’m working with an exciting AI software company based in London that’s at the forefront of prompt engineering and Large Language Model (LLM) innovation. The team currently sits at around 20 people, and they’re looking for a Senior Software Engineer to join them as they grow. As a Senior Softw

A leading engineering consultancy in the UK is seeking an experienced Python Full Stack Developer. You will design and maintain web applications, focusing on both backend Python (Django/FastAPI/Flask) and frontend using React or Angular.

You’ll have real ownership from an engineering perspective, shipping features that are used daily by Ops teams. Solid experience with Python in a web application context. Strong engineering principles & practices: design patterns, testing, clean code and a good reviewer.

If interested in this AWS Data Engineer (Spark/Python/SQL) role please apply with latest WORD CV clearly showing suitability to this role. AWS Data Engineer (Spark/Python/SQL) 6-month duration Remote with some travel to client sites Rates: £500‑650 per day (DoE) Inside IR35 (payroll via Umbrella