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Contractor python developer

30 python developer jobs found

CL
Apr 08, 2026  
Senior Python Developer
Senior Python Developer (Contract) £600 - £700 PD (Inside IR35) 6 Months Contract London HybridOverview We are seeking an experienced Lead Python Software Engineer. You will lead the technical architecture and delivery, ensuring reliable system synchronisation, improved data consistency, and scalable solutions for an amazing brand. Role & Responsibilities Lead the architecture and technical delivery of the solution Develop backend services and APIs, with occasional frontend contributions where needed Implement reliable system integrations and data synchronisation Work within established architecture patterns and engineering standards Collaborate with engineers, product managers, and other stakeholders Communicate technical decisions clearly and maintain high engineering standards Essential Skills & Experience Strong experience with Python and TypeScript Strong AWS experience (ECS, Lambda, Step Functions, API Gateway) Experience managing infrastructure with Terraform...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 05, 2026  
Senior Python Developer
Senior Python Developer Duration: 14 Months Location: London, UK (3 days in office) Active SC Clearance required Inside IR35 - Umbrella only About the Role: We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Developer will be responsible for both front-end and back-end development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with various programming languages and frameworks, and a passion for building high-quality, scalable, and maintainable software. Drive the development of MVPs, ensuring timely delivery and alignment with...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Apr 05, 2026  
Python Full Stack Developer
Python Full Stack Developer – Azure Databricks London (Hybrid) 6 Month Contract £550/day (Inside IR35) Python Full Stack Developer needed with active SC Security Clearance Azure Cloud and Azure Databricks. . 6 Month Contract based in Central London (Hybrid). Start ASAP in March/April 2026. Hybrid Working - 2 days/week remote (WFH), and 3 days/week working on-site from the London office. A chance to work with a leading global IT and Digital transformation business specialising in Government projects: Key experience, responsibilities + tasks: Strong Python development expertise, develop and maintain Python code for data processing, API development and integration with the Azure Databricks environment. Senior experience in software development, with a focus on both front-end and back-end development. Front-end development using React, Angular, Vue.js, Front-end and back-end development of applications and APIs interacting with the Azure Databricks platform. Experience...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Software Developer
Software Developer Location: Exeter Contract: 12 months (Inside IR35) Security Clearance: SC clearance required Pay Rate: £625 per day (Umbrella) Hybrid: two days per week to begin with - 1 day after induction About the Role Join a digital team delivering critical weather and observational data to the public through web and mobile applications. You will develop robust, scalable APIs to make the latest science and data accessible to millions of users. This role involves working closely with developers and scientists to build high-quality software, coach junior colleagues, and operate services in production. Key Responsibilities * Design, implement, and deliver software that meets user needs * Write clean, secure, and well-tested code * Follow best practices and contribute to improving them * Mentor and coach junior colleagues * Operate and monitor the services you build, identifying and resolving production issues Essential Skills & Experience * Strong analytical and...
IR35 Status:
Inside IR35

CV-Library Exeter, Devon Contractor
CL
Apr 09, 2026  
Application Support Analyst
Account Support Specialist - Gaming + Global leader in gaming + 12 month initial contract + 80% hybrid - 20% onsite in ondon + up to £30 per hour Key Skills: + Background in Gaming/Gaming Industry + Knowledge of modern SW + Fluent in Japanese About the Role As an Account Supporter, you'll support PlayStation partners-developers and publishers-by delivering high-quality operational and technical assistance through DevNet and the Help Centre, ensuring they can build, test, and launch smoothly. What You'll Do Support game developers and partners via ticketing systems with fast, accurate solutions Help deliver operational readiness for game releases, updates, and partner milestones Execute SOPs across partner access, dev hardware, releases, support, and live events Maintain and improve knowledge bases used by global developer teams Contribute to developer communications (announcements, forums, bulletins) Support developer events, showcases, and technical conferences...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Graduate Full Stack Developer
We have an exciting opportunity for a Graduate Full Stack Developer to join a growing software house on a three-month internship, with the potential of this role going permanent. Our client is UK based AI transformation company pioneering a new category. This is combining AI Systems, modular software and strategic execution into deployable solutions for enterprise clients. The Project: Working on a greenfield build on Ms Azure, the successful candidate will focus on building a secure, scalable platform from the ground up. The system will support complex workflows, secure data management and multi – organisation collaboration within a regulated environment. The team is intentionally small (architect + senior engineers), so we’re looking for developers who are comfortable taking ownership across the stack rather than working in highly siloed roles. Responsibilities: * Strong full stack engineering capability (backend-heavy preferred) * Build React frontends and Python...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Apr 08, 2026  
Golang Developer - Software Engineering, Financial Services
Golang Developer - Software Engineering, Financial Services Up to £700 per day (Inside IR35) London 6 Months My client is an international Consultancy who require a Golang Developer with a proven Software Engineering background to work closely with a high profile Financial Services end client. Key Requirements: Demonstrable experience as a Golang Developer in a large commercial environment Strong Software Development background Proficiency in modern and Agile Software Development practices Ability to create a REST service Good understanding of APIs Ability to thrive in a fast-paced, and high-pressured environment Nice to have: Financial Services industry experience Degree in Computer Science (or related subjects) Python Development skills Immediate availabilityHays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 10, 2026  
AI Engineer
We are seeking an experienced AI Engineer to develop and implement innovative AI solutions within the industrial and manufacturing sector. The role focuses on leveraging data analytics to optimise processes and drive efficiency. Client Details A well know manufacturing company with a global presence Description Design and develop AI models to optimise manufacturing processes and workflows. Collaborate with cross-functional teams to identify and solve key operational challenges using analytics. Implement machine learning algorithms and predictive analytics to improve process efficiency. Analyse large datasets to extract actionable insights and present findings to stakeholders. Monitor and maintain AI models to ensure optimal performance and accuracy over time. Contribute to the development of data pipelines and infrastructure to support AI initiatives. Ensure compliance with industry standards and best practices in AI and data analytics. Document processes, methodologies, and...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Apr 10, 2026  
Senior Technical Delivery Manager
OverviewWe're looking for a hands‑on Technical Delivery Manager to lead end‑to‑end delivery of a key technology product or platform. This role combines delivery ownership, product leadership, and technical credibility. You'll work closely with developers, analysts, and senior business stakeholders, taking full accountability for outcomes and team performance. Details: Location - London Duration - Initial 6 months Hybrid - 2 days / week in the office Key Responsibilities Own delivery from inception through build, release, and BAU. Prioritise and maintain the product backlog and roadmap. Work directly with developers and challenge technical decisions where needed. Understand system design, data flows, APIs, and CI/CD processes. Provide clear, structured updates to senior stakeholders. Lead and line‑manage a team of software engineers. Ensure operational readiness, incident oversight, and continuous improvement. Experience & Skills Proven experience delivering complex...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 10, 2026  
Celonis Data Engineer
Contract Opportunity: Data Engineer – Celonis Process Mining 📍 Location: Central London (Office Based) 📅 Start Date: ASAP 📄 Contract Length: 6 Months Initially 💷 Day Rate: TBC — expected around £500/day (Inside IR35) About the Role Our client is seeking a highly skilled Data Engineer with strong Celonis process mining expertise to join a leading financial services organisation. This role plays a pivotal part in enabling enterprise-wide process intelligence by transforming complex banking data into accurate, analysis‑ready insights. Working within a regulated banking environment, you will design and deliver high‑quality event logs, build robust data pipelines, and optimise Celonis data models to support end‑to‑end visibility and drive operational improvement. Key Responsibilities 1. Data Engineering & Event Log Construction * Design, build, and maintain scalable event‑log pipelines for Celonis process mining. * Translate raw process event data (case IDs,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 10, 2026  
Avionics Software Team Lead
Key Skills: + Understand Software Lifecycle + C/Python + Aerospace standards including DO-178C Job purpose: We are seeking a Senior Manager, Software Engineering to lead our expanding software team. Reporting to the System Design Manager, you will be responsible for the management and day-to-day activities of the software team, collaborating with other disciplines and managers in all areas of the business. Responsibilities: Team Leadership: Lead the day to day activities of the software team, taking responsibility for delivering the agreed team goals. Skills Development: Develop the team's personal and professional skills, acting as a mentor and coach to the team members. Team growth: Be part of the recruiting team seeking new talent as the team grows. Be accountable for the planning, design, development, verification and integration of the software for the high-altitude, long-endurance aircraft. Act as the technical authority for software, ensuring compliance with safety,...
IR35 Status:
Unknown Status

CV-Library Farnborough, Hampshire Contractor
CL
Apr 10, 2026  
Solution Architect
Solution Architect Location: London - 2/3 days on site Duration: 04/05/2027 Rate- £506 MUST BE PAYE THROUGH UMBRELLA Key Responsibilities: Lead and manage software development projects using Java, Python, Typescript, AWS, React JS, Angular, and other technologies. Collaborate with cross-functional teams to define project scope, objectives, and deliverables. Create the high-level design (or solution architecture documents) for the business requirements Produce several option papers and work with architecture community and forums to get the designs approved Proficient using architectural principles and patterns, variety of solution types, detailed design patterns, best practices, integration choices etc Design solutions reducing technical debt with futuristic solutions aligning to enterprise architecture and vision Aim to reuse the existing applications, services, and data, wherever possible Work with cross-functional teams to deliver the defined scope, objectives, and...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Research Assistant
Research Assistant - £285 - £300 Per Day – Cambridge (5 Days Onsite) – 12 Month Contract – Multinational Technology Company About the Role We are seeking a Research Assistant to support data collection activities at a newly established, state‑of‑the‑art research facility located in Cambridge. This role is ideal for someone who is organised, detail‑oriented, and enthusiastic about contributing to research involving advanced audio and prototype technologies. You will work closely with Engineers, Project Coordinators, and study participants to ensure smooth, accurate, and efficient data collection. As you develop in the role, you may also take on independent responsibility for running selected data collections and technical demonstrations. Key Responsibilities Support the execution of data collection activities in a modern research facility. Work closely with Audio and Systems Engineers, assisting with participant-facing tasks and setting up basic equipment. Guide and support...
IR35 Status:
Unknown Status

CV-Library Cambridge, UK Contractor
CL
Apr 09, 2026  
SCADA Engineer
SCADA / HMI Engineer Contract | Inside IR35 | Hybrid - Warrington (Office + Remote) Security Clearance: BPSS / Eligible for SC Are you an experienced SCADA/HMI Engineer who loves solving complex problems, shaping high‑quality control systems, and working on projects that genuinely matter? What You'll Do In this role, you'll design, develop, implement and test SCADA/HMI solutions that meet rigorous engineering and safety standards. You'll play a key part in the full systems lifecycle, from requirements capturing through to system testing, documentation, and commissioning. You will: Design & Engineering Develop HMI/SCADA applications (e.g., Rockwell FactoryTalk View) using standardised objects, faceplates and intuitive visual displays. Prepare high‑quality engineering documentation such as URS/RTM, FDS/SDD, SSS, test specifications and I/O schedules. Work closely with PLC engineers to define the control system architecture, network diagrams and interface documentation....
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Apr 09, 2026  
GIS Consultant
GIS Consultant (Contract - Outside IR35) Location: Remote with occasional travel to London Heathrow or Manchester Day Rate: £400-£500 per day Outside IR35 Duration: 2-3 months to start with We are currently recruiting for a GIS Consultant to support the development of a GIS solution for a major infrastructure project. This role will focus on building and delivering dashboards using ArcGIS Online, helping transform complex spatial data into clear, user-friendly insights for different stakeholders. Key Responsibilities: Develop and customise dashboards in ArcGIS Online for different user groups Work closely with the GIS team to manipulate and visualise spatial data Present GIS data in a clear and accessible format for non-technical users Support with mapping, data management, and basic GIS analysis where required Key Requirements: Proven experience working with ArcGIS Online, particularly dashboards Strong understanding of GIS principles and spatial data Ability to translate...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
AWS Data Engineer (contract)
AWS Data Engineer | 6m Contract | London, Hybrid - Outside IR35  Daily Rate: £570 per day (Outside) Team: Data Engineering - Application Development Overview: Opus have partnered with a London Financial Services company who're seeking a Senior AWS Data Engineer with a background in Application Development to support in architecting and delivering a new PostgreSQL‑driven data platform which will be used to support core functions across investment reporting, risk analysis, regulatory output, and performance measurement. This is a high‑impact greenfield build. You’ll take full ownership of the platform’s design and lead the transition away from Databricks and Excel-centric processes—shaping critical infrastructure that underpins the organisation’s investment operations. What You’ll Work On You’ll be responsible for designing and developing a scalable, secure PostgreSQL environment capable of supporting: Portfolio valuation and holdings data Performance and attribution reporting...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Infrastructure Engineer
3 x Infrastructure Engineers 12 months £72.54 (inside IR35) Defence Hereford based (On site) We are looking to fill three roles in total, with one finding a requirement to possess exceptional networking skills. All roles will report to the Lead IT Infrastructure Engineer. The IT infrastructure engineer will design, build, manage and support the IT-infrastructure that underpins a tactical mission network hosted on an on-premise environment. You will be expected to work as part of an IT engineering team for a government organisation that supports a critical communications system relied upon by hundreds of deployed users. Therefore, you must hold a UKNSV security clearance of SC with DV being desirable. The IT infrastructure engineer will require a breadth of knowledge across multiple areas including VMware virtualisation, Linux OS, Windows Server OS and Cisco networks. Specialisms in individual areas are good, but it is a breadth of knowledge that is deemed valuable....
IR35 Status:
Inside IR35

CV-Library Hereford, Herefordshire Contractor
CL
Apr 08, 2026  
Data Engineer
Adword Job title: Data engineering specialist Locations: London One Braham or Birmingham Snowhill or Bristol Assembly (hybrid-3 days onsite) Start Date: Ideally 1st April so must be available immediately Duration: 06 months IR35: Inside Job description: Looking for immediate joiners, Ideally by 1st April Role Overview We are seeking an experienced Analytics Engineer to design and build scalable analytical data models that support business intelligence, reporting and commercial analytics. The role sits within a multidisciplinary data team responsible for delivering trusted analytical data products used across commercial and marketing teams. The ideal candidate will combine strong analytical thinking with advanced SQL engineering capability, and will have experience designing analytics-ready datasets used by BI tools or semantic layers. This is not a pipeline engineering role; we are looking for someone experienced in building analytical data models that define consistent...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 08, 2026  
Analytics Engineer
Role: Analytics Engineer Location: London / Birmingham / Bristol - Any location (Hybrid 3 days onsite, 2 days remote) Duration: 6 Months Day rate: £450 - £600 Inside IR35 Role Overview We are seeking an experienced Analytics Engineer to design and build scalable analytical data models that support business intelligence, reporting and commercial analytics. The role sits within a multidisciplinary data team responsible for delivering trusted analytical data products used across commercial and marketing teams. The ideal candidate will combine strong analytical thinking with advanced SQL engineering capability, and will have experience designing analytics-ready datasets used by BI tools or semantic layers. This is not a pipeline engineering role; we are looking for someone experienced in building analytical data models that define consistent business metrics and enable self-service analytics. Key Responsibilities Analytical Data Modelling * Design and implement scalable...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 08, 2026  
Azure DevOps Engineer (SC Cleared)
Azure DevOps Engineer (SC Cleared) London (Hybrid) 6 Month Contract £(Apply online only)/day (Inside IR35) DevOps Platform Engineer needed with active SC Security Clearance and strong Azure Cloud expertise including Databricks + Data Factory. 6 Month Rolling Contract based in London. Start ASAP in March/April 2026. Hybrid Working - 2 days/week remote (WFH) + 3 days/week working from the office in London. A chance to work with a leading global IT transformation business specialising in large-scale Government projects: Azure Databricks Economic Data Platform is critical for Monetary Analysis, Forecasting + Modelling, used by data scientists, developers + economists. In-depth Azure Cloud platform engineering including: Azure Databricks, Data Factory, WebApp Service, API Management + APIOps. Building / maintaining core infrastructure + tooling, Infrastructure-as-Code (IaC), DevOps practices, containerisation + orchestration. Creating a self-service, scalable, and reliable...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
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