contract python developer jobs in London

.NET Developer | C# .NET | Energy Trading | ETRM | Hybrid – London | £900 | Inside IR35 | 6-Month Rolling ContractA leading global financial services organisation, providing liquidity, market access and infrastructure services across commodities, financial markets and foreign exchange, is looking to hire a C# .NET Developer to join their Power & Gas...

Qube Research & Technologies in London seeks a Quantitative Developer to design, build and deploy Python-based tools for research and trading across commodities. You will construct data pipelines, analytical models, and dashboards in collaboration with researchers, traders and data engineers.The role emphasizes strong Python programming, SQL, and cloud...

Job ID: 1 Posted: 2026-10-30Location: London, England, United KingdomCategory: TechnologyCompany: CitiCounterparty Credit Risk Analytics is a group within Citi Financial Risk Technology, responsible for developing the applications used for derivatives credit Risk and Basel Capital calculations Firm-wide. The Counterparty Credit Risk Developer is an...

Square One Resources Limited is seeking an experienced DV Cleared Python Developer to join a long-term project in London, onsite. The role requires active DV clearance and offers a daily rate of up to £550 on an outside IR35 12-month contract.You will develop, maintain and deploy Python applications, build APIs and microservices, and work with...

DescriptionWe are looking for a Python Developer to join our Client Success Team.The vision of the Client Success Team is to establish a proactive, client-aligned feedback loop that accelerates high-impact feature delivery for the Validus Horizon platform. By doing so, the team enhances internal efficiency and delivers greater external client value. This...

Job DescriptionKDB+/Python Developer | LondonPermanent - HybridSalary: £85K - £115KWe are looking for a talented KDB+/q and Python Developer with 3-5 years of commercial experience to join a technology team developing and supporting high-performance, data-driven applications. xpwpeyx Responsibilities:Develop and maintain applications using KDB+/q and...

About Us:Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical...

Role: Software Developer (Python) - Up to £140,000 + Bonus + Package Salary: Up to £140,000 + Bonus + Package Location: London (Hybrid Working) Skills: Python as a main language This firm is an elite tech firm with high standards who have previously set tech world records. They are made up of some exceptionally talented individuals who above all are...

Futureheads are working alongside a consultancy who are looking for a Python developer to help them work on a Government project up until the 30th April The role is remote first with rare but ad-hoc travel to London. Python development within a similar setting is desirable. Any experience around marklogic/XML/data structures would be amazing but not...

We are partnering with an innovative technology business operating at the intersection of software engineering, artificial intelligence, and advanced computational modelling. Our client is building next-generation platform solutions that drastically accelerate engineering analysis and design processes across a range of industrial sectors.They are looking for...

Join Capgemini's Financial Services Business Unit within the Cloud & Custom Applications (C&CA) practice as a Python Developer, helping clients turn complex requirements into secure, scalable and future-ready solutions. You'll design and deliver high-quality backend services while contributing to AI-enabled applications that create meaningful business...

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to...

Duration: Until December 15, Location: Hybrid (primarily remote; anticipated onsite 1–2 days per quarter, Toronto or Wtaerloo) As a Senior Software Engineer, this candidate will design, develop, and support modern cloud-native applications and data solutions on AWS. You will work across software engineering, data platforms, and DevOps practices to deliver...

Job DescriptionSoftware Developer / Engineer (C++ Python) London / WFH to £125kAre you a talented, backend focussed Software Developer with strong C++ and Python skills and a solid understanding of the trade lifecycle?You could be progressing your career at a technology driven systematic trading firm where you'll develop sophisticated, data driven software...

FalconSmartIT is seeking a BCM Sr. Developer to lead ServiceNow BCM implementations, customizations, and integrations, delivering resilient business continuity solutions and aligning with enterprise risk strategies.You will design workflows, build REST/SOAP integrations, and create dashboards while applying best practices in BCM, BIA, recovery planning,...

OverviewWe are seeking a senior and experienced GenAI & Agentic Developer to build core services, features and capabilities on an enterprise-grade Generative AI Platform for a large global insurer. This role blends strong Python engineering with DevOps enablement and hands-on integration of LLM technologies into secure, scalable enterprise environments.The...

Power BI Developer - Dynamics 365 F&O/ Fabric - 500 per day - Outside IR35 - London / Hybrid - 6 monthsI'm currently working with a London-based client who is embarking on a significant business transformation programme, implementing Microsoft Dynamics 365 Finance & Operations (F&O) across its finance function. As part of this programme, they are looking to...

Our banking client is seeking a Intermediate Backend (Python) Software Developer to design, build and maintain secure, scalable APIs and integrations on an API gateway platform within the banking and industry (Hybrid, Calgary AB preferred - 1 day/week onsite)[-98].Overview: This is a backfill on a small team (1-5), building API products and solutions that...

Opticore IT is seeking a Senior Software Engineer to lead Python microservices development for a modernised, scalable architecture. The role focuses on building highly concurrent services that can process state and configuration data from thousands of network devices, deployed in Kubernetes and containerised with Docker.This is a six-month contract inside...

Futureheads Recruitment Ltd is seeking a Python developer for a government project. The role is remote-first with rare, ad-hoc travel to London. ASAP start.Experience with MarkLogic and XML data is a plus, though not required. The engagement is a short-term contract lasting until 30 April, with a daily rate outside IR35. Strong Python skills and the ability...