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1 Permanent API job in Holloway (N19) + 20 miles
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Python, Flask ,Azure, MySQL, API, Django, FastAPI
Python, Flask ,Azure, MySQL, API, Django, FastAPI
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We are searching for a Python Developer to join SEFE in London. * Application Development: Design, develop, and maintain in-house applications for the Derivatives trading desk using Python, ensuring efficient, scalable, and reliable solutions. * Proficiency in Python (3.10+) SEFE, an international energy company, ensures the security of supply and drives the decarbonisation of its customers. SEFEs activities span the energy value chain, from origination and trading to sales, transport and storage. Through its decades-long expertise in trading and the development of its LNG business, SEFE has become one of the most important suppliers to industrial customers in Europe, with an annual sales volume of 200 TWh of gas and power. Its 50,000 customers range from small businesses to municipalities and multinational organisati
We are searching for a Python Developer to join SEFE in London. * Application Development: Design, develop, and maintain in-house applications for the Derivatives trading desk using Python, ensuring efficient, scalable, and reliable solutions. * Proficiency in Python (3.10+) SEFE, an international energy company, ensures the security of supply and drives the decarbonisation of its customers. SEFEs activities span the energy value chain, from origination and trading to sales, transport and storage. Through its decades-long expertise in trading and the development of its LNG business, SEFE has become one of the most important suppliers to industrial customers in Europe, with an annual sales volume of 200 TWh of gas and power. Its 50,000 customers range from small businesses to municipalities and multinational organisati
NEWFEATURED
Python Developer - Operations
Python Developer - Operations
Feenicks Ltd TA Archway International
Piccadilly, W1
Up to £60,000 per annum
Write clean, efficient, and maintainable Python code * Experience withFlaskor similar Python web frameworks - Were working with afast-growing London-based fintech company tohelp them find a talentedPython Developerto join their dynamic engineering team. Please note:The client isunable to sponsor visasat this time. Applicants must have the right to work in the UK. Compensation * Up to £60,000 base salary * Performance-based bonus - Hybrid Working * 23 days per monthin their London office - Responsibilities * Design and architect complex systems and applications for theFinancial Operationsteam * Translate technical requirements into scalable software solutions * Participate in code reviews and uphold best practices across the development lifecycle * Collaborate with stakeholders to gather requirements and provide project updates * Optim
Write clean, efficient, and maintainable Python code * Experience withFlaskor similar Python web frameworks - Were working with afast-growing London-based fintech company tohelp them find a talentedPython Developerto join their dynamic engineering team. Please note:The client isunable to sponsor visasat this time. Applicants must have the right to work in the UK. Compensation * Up to £60,000 base salary * Performance-based bonus - Hybrid Working * 23 days per monthin their London office - Responsibilities * Design and architect complex systems and applications for theFinancial Operationsteam * Translate technical requirements into scalable software solutions * Participate in code reviews and uphold best practices across the development lifecycle * Collaborate with stakeholders to gather requirements and provide project updates * Optim
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A leading global multi-strategy investment firm is looking for a Software Developer to join their Front Office Treasury team, focused on building next-generation trading, funding, and liquidity management systems. * 5-15 years of professional experience in software engineering, ideally in front office finance, fintech, high-frequency trading, or technology-driven startups - This platform directly supports decision-makers in dynamic, live-market environments and operates at hedge-fund scale with start-up pace. You will be part of a collaborative, high-performing team that values technical excellence, an ownership mindset, and humility. The ideal candidate is an experienced engineer with strong Python skills, data engineering expertise, and comfort working in fast-paced trading environments. Key Responsibilities * Building and maintaini
A leading global multi-strategy investment firm is looking for a Software Developer to join their Front Office Treasury team, focused on building next-generation trading, funding, and liquidity management systems. * 5-15 years of professional experience in software engineering, ideally in front office finance, fintech, high-frequency trading, or technology-driven startups - This platform directly supports decision-makers in dynamic, live-market environments and operates at hedge-fund scale with start-up pace. You will be part of a collaborative, high-performing team that values technical excellence, an ownership mindset, and humility. The ideal candidate is an experienced engineer with strong Python skills, data engineering expertise, and comfort working in fast-paced trading environments. Key Responsibilities * Building and maintaini
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As a Full Stack Engineer focused on application development in Foundry, you will be responsible for crafting the tools used by thousands of users to build the sophisticated applications that power their businesses. Foundry Software Engineers may be offered the opportunity to Frontline, an exclusive program unlike any other. Palantir builds the worlds leading software for data-driven decisions and operations. They can also build sophisticated, full-fledged programs, such as common operating pictures, alert-triaging inboxes, and resource allocation planning tools driven by rich-ML models. As part of this, you will own APIs and schemas that power your frontend code, or work with other backend engineers in developing them together. We're hiring engineers
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The ideal candidate will be a data engineer from a software engineering background with machine learning experience. New Senior Data Engineer Contract Roles - We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The rate available for this position is: £550-575pd * Snowflake * AWS * Machine Learning * React or Angular - Please apply directly or email me your CV on
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Software Developer - Active SC, Python, AWS
Software Developer - Active SC, Python, AWS
Hays
London
£400.0 - £425.0 per day + up to £425 per day (InsideIR35)
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As a Python Software Engineer, you will contribute to the design, development, and delivery of scalable, high-impact features across our platform. A Mid Level Python Engineer is required to join a Fintech company developing next generation tools for how companies get funding and optimise their working capital. You will be joining a strong team of Python Engineers, Data Scientists, and financial experts, who are building the next generation of financial toolsscalable, secure, and smart. If you're an experience Software Engineer whose passionate about Python, excited by financial technology, and eager to build meaningful systems from the ground up, we want to hear from you. Youll work closely with experienced engineers, product managers, and data scient
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Software Developer - Python, Azure
Software Developer - Python, Azure
Hays
London
£35000.0 - £40000.0 per annum + Competitive Salary + Benefits
Hays Software Engineering are looking for a Software Developer to join a fast-growing real estate investment firm. * Write clean, efficient, and well-documented code in Python, CSS, and JavaScript. * Assist in troubleshooting, debugging, and resolving software defects. * 1+ years experience in a relevant position delivering full software lifecycle. * Proficiency in Python, CSS, HTML and JS code at an intermediate to advanced level. * Experience in software security would be preferred, but is not essential. * Heavily contribute to the development of an in-house application designed to streamline the lending process for clients. * Work with cross-functional teams to understand project requirements and deliver solutions that meet client
Hays Software Engineering are looking for a Software Developer to join a fast-growing real estate investment firm. * Write clean, efficient, and well-documented code in Python, CSS, and JavaScript. * Assist in troubleshooting, debugging, and resolving software defects. * 1+ years experience in a relevant position delivering full software lifecycle. * Proficiency in Python, CSS, HTML and JS code at an intermediate to advanced level. * Experience in software security would be preferred, but is not essential. * Heavily contribute to the development of an in-house application designed to streamline the lending process for clients. * Work with cross-functional teams to understand project requirements and deliver solutions that meet client
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Collaborating as part of a cross-functional team of backend, front-end, and full-stack engineers. Thought Machine software engineers work across the stack to solve complex engineering problems that have not been solved before. Software Engineers will take complete ownership of a requirement, converting it into an engineering design, task breakdown, and implementation. Software engineers are expected to bridge the gap between back-end and front-end, crafting delightful experiences that delight all our clients. Software Engineering is a key role within Thought Machine. This is a full-time, permanent position based in our London office, requiring three days a week onsite, with the option to work four day
Collaborating as part of a cross-functional team of backend, front-end, and full-stack engineers. Thought Machine software engineers work across the stack to solve complex engineering problems that have not been solved before. Software Engineers will take complete ownership of a requirement, converting it into an engineering design, task breakdown, and implementation. Software engineers are expected to bridge the gap between back-end and front-end, crafting delightful experiences that delight all our clients. Software Engineering is a key role within Thought Machine. This is a full-time, permanent position based in our London office, requiring three days a week onsite, with the option to work four day
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Backend Software Engineers at Palantir build software at scale to transform how organizations use data. As a Software Engineer on infrastructure, you'll contribute high-quality code to underpin Palantir Foundry and Gotham with performant, secure, and scalable building blocks, enabling products deployed to the most important institutions in the public and private sector. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. Our Product Development organization is made up of small teams of Software Engineers. Our infrastructure teams are responsible for the lowest layers of our software stack, often focu
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AI Fullstack Developer - Python - React - Remote - Outside IR35
AI Fullstack Developer - Python - React - Remote - Outside IR35
The Bridge (IT Recruitment) Limited
The Borough, SE1 0AA
£510 - 525 per day
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This is a fantastic opportunity to work a remote Senior Fullstack Developer for a major pharmaceutical company on a long term contract, outside IR35. * Python * React * AI (desirable) If you do have the relevant experience for this remote, outside IR35 Senior Fullstack Developer role, please do send through your CV. * Typescript * Java (desirable) * AWS * SQL * Kubernetes (desirable)
Full Stack Python Developer (AI,LLMs) - London (1 day a week)
Full Stack Python Developer (AI,LLMs) - London (1 day a week)
Transparent Technology
London
£35000 - £45000 per annum + bens, future equity
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Perform data validation, forensic analysis, and troubleshooting. * Integrate data from APIs, S3 buckets, and structured/unstructured sources (JSON, CSV, Excel, PDF, Parquet). * Join geospatial datasets with external data sources and apply complex transformations. * Define validated data schemas and create clear documentation for partners and teams. * Explore and evaluate new data engineering tools and technologies. * 5+ years' experience in data engineering, analytics, or related roles. * Solid understanding of algorithms, data structures, and relational databases. * Knowledge of data cleansing, validation, and basic statistics. * Bachelor's degree in Computer Science, Data Engineering, or related field (or equivalent
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have software development experience, preferably in C/C++. * developing software for cyber security systems * providing support and training to our customers in using the software. Candidates that our clients are looking for must have a strong academic background typically with a first class degree or PhD in a numerate subject such as physics, engineering or maths. We look for candidates with the aptitude to learn quickly and take on our customers most challenging problems. We help our staff develop the skills they need through on-the-job training coupled with readily available support and guidance * be self-motivating, capable of working independently * have a good (1st/2.1) undergraduate degree or a PhD in a numerate discipline * have a strong academic background typically including A*'s in A-level Maths and Physics
have software development experience, preferably in C/C++. * developing software for cyber security systems * providing support and training to our customers in using the software. Candidates that our clients are looking for must have a strong academic background typically with a first class degree or PhD in a numerate subject such as physics, engineering or maths. We look for candidates with the aptitude to learn quickly and take on our customers most challenging problems. We help our staff develop the skills they need through on-the-job training coupled with readily available support and guidance * be self-motivating, capable of working independently * have a good (1st/2.1) undergraduate degree or a PhD in a numerate discipline * have a strong academic background typically including A*'s in A-level Maths and Physics
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Were looking for a Principal AI Engineer who combines deep technical expertise with the ability to set direction, influence stakeholders, and shape the future of AI engineering across the enterprise. As a Principal AI Engineer, you will serve as both a hands-on technical leader and a strategic partner driving architectural choices, aligning with business and technology stakeholders, and ensuring that our AI systems are secure, reliable, and scalable. Our AI Acceleration organisation is building high-impact AI-powered applications that deliver measurable business value at speed. This is a role for leaders who thrive at the intersection of disciplined engineering, AI innovation, and organizational influence. You will wo
Were looking for a Principal AI Engineer who combines deep technical expertise with the ability to set direction, influence stakeholders, and shape the future of AI engineering across the enterprise. As a Principal AI Engineer, you will serve as both a hands-on technical leader and a strategic partner driving architectural choices, aligning with business and technology stakeholders, and ensuring that our AI systems are secure, reliable, and scalable. Our AI Acceleration organisation is building high-impact AI-powered applications that deliver measurable business value at speed. This is a role for leaders who thrive at the intersection of disciplined engineering, AI innovation, and organizational influence. You will wo
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Title: Software Engineer A next-generation and scientifically-led HPC team have opened up an opportunity for an experienced Software Engineer with C++ and GPU expertise to join a team of exceptionally talented developers. This is a fantastic chance for an experienced C++ engineer with proven experience in a video or high-performance environment to join a world-class team of engineers developing truly novel solutions. * Experience writing performance-critical software Company: HPC / AI - Location: London (hybrid) Package: Up to £90,000 - You will have the opportunity to shape the developmental trajectory of the business by working on high-performance greenfield projects. * C++ is your strongest language * Ideally experience in Video or Audio Processing * Exposure to GPU technology (Vul
Title: Software Engineer A next-generation and scientifically-led HPC team have opened up an opportunity for an experienced Software Engineer with C++ and GPU expertise to join a team of exceptionally talented developers. This is a fantastic chance for an experienced C++ engineer with proven experience in a video or high-performance environment to join a world-class team of engineers developing truly novel solutions. * Experience writing performance-critical software Company: HPC / AI - Location: London (hybrid) Package: Up to £90,000 - You will have the opportunity to shape the developmental trajectory of the business by working on high-performance greenfield projects. * C++ is your strongest language * Ideally experience in Video or Audio Processing * Exposure to GPU technology (Vul
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Software Engineer
Software Engineer
Daniel James Resourcing Ltd
Campden Hill, W8
£90000 - £100000 per annum, Benefits Exceptional benefits package
Senior Software Engineer Node.js / JavaScript / React / Remote-First - Were hiring Senior Software Engineers to join one of the UKs most well-known content platforms a high-scale, fast-paced environment where performance matters. Ready to engineer products that reach millions daily, with the flexibility of remote-first working and the backing of a globally recognised digital brand? * Youll join a collaborative, forward-thinking team of engineers Location: London (Hybrid Occasional Office Days) Salary: Up to £100,000 + Benefits - Work on Scalable, High-Traffic Platforms Used by Millions - While we cant name the brand here, the work you do will be seen and used by audiences worldwide. Youll help build powerful tools and platforms across publishing, content delivery, and user experience, with a strong em
Senior Software Engineer Node.js / JavaScript / React / Remote-First - Were hiring Senior Software Engineers to join one of the UKs most well-known content platforms a high-scale, fast-paced environment where performance matters. Ready to engineer products that reach millions daily, with the flexibility of remote-first working and the backing of a globally recognised digital brand? * Youll join a collaborative, forward-thinking team of engineers Location: London (Hybrid Occasional Office Days) Salary: Up to £100,000 + Benefits - Work on Scalable, High-Traffic Platforms Used by Millions - While we cant name the brand here, the work you do will be seen and used by audiences worldwide. Youll help build powerful tools and platforms across publishing, content delivery, and user experience, with a strong em
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Senior full stack AI Engineer (LLM) - Remote - £475 Outside IR35 - 6 months
Senior full stack AI Engineer (LLM) - Remote - £475 Outside IR35 - 6 months
Exalto Consulting ltd
London
£475 Outside IR35
Senior full stack AI Engineer - Remote - AI - LLM - Typescript - react - Python - AWS - £475 a day Outside IR35. Senior full stack AI Engineer - Remote - AI - LLM - Typescript - react - Python - AWS - Outside IR35 - £475 a day - My client has an urgent need for a senior full stack AI Engineer this is outside IR35, 100% remote working and contract will be initially 6 months but likely to extend this is paying £475 a day * LLM applications: LangChain, Pydantic-AI (similar frameworks), RAG systems, MCP servers * backend (Python / FastAPI) leveraging a Python-based framework for LLMs and AI-agent (pydanti
Senior full stack AI Engineer - Remote - AI - LLM - Typescript - react - Python - AWS - £475 a day Outside IR35. Senior full stack AI Engineer - Remote - AI - LLM - Typescript - react - Python - AWS - Outside IR35 - £475 a day - My client has an urgent need for a senior full stack AI Engineer this is outside IR35, 100% remote working and contract will be initially 6 months but likely to extend this is paying £475 a day * LLM applications: LangChain, Pydantic-AI (similar frameworks), RAG systems, MCP servers * backend (Python / FastAPI) leveraging a Python-based framework for LLMs and AI-agent (pydanti