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      1 Contract API job in Rotherham + 20 miles

      Python Developer

      VANLOQ LIMITED
      S1, Sheffield
      Unspecified
      Contract: Until end of 2025, rolling extensions - Inside IR35 - Were partnering with a leading financial services client in Sheffield who are seeking a Skilled Python Developer to join their team. Youll be instrumental in building scalable automation solutions to streamline and optimise database operations. This is a hybrid role (3 days per week in Sheffield), offering an initial contract until the end of the year with strong potential for rolling extensions. * Design, develop, and maintain automation solutions for database operations and rollouts * Build and integrate APIs for database management and automation workflows * Troubleshoot automation issues across scripting, APIs, and containerised environments * Proven experience in Python development & FastAPI * Strong knowledge of PostgreSQL database administration * Excellent problem-solving, debugging, and analytica
      Contract: Until end of 2025, rolling extensions - Inside IR35 - Were partnering with a leading financial services client in Sheffield who are seeking a Skilled Python Developer to join their team. Youll be instrumental in building scalable automation solutions to streamline and optimise database operations. This is a hybrid role (3 days per week in Sheffield), offering an initial contract until the end of the year with strong potential for rolling extensions. * Design, develop, and maintain automation solutions for database operations and rollouts * Build and integrate APIs for database management and automation workflows * Troubleshoot automation issues across scripting, APIs, and containerised environments * Proven experience in Python development & FastAPI * Strong knowledge of PostgreSQL database administration * Excellent problem-solving, debugging, and analytica
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      Back End Developer

      Calibre
      Moorfoot, s1 1aa
      £30000 - £35000 per annum + Benefits
      We're on the lookout for a Java Developer with commercial Java experience (12 months will suffice) Based in Sheffield City Centre, we have placed the majority of Developers within the business since 2008 - many of whom have gone onto become Senior Engineers. * Development of backend web applications using Java to deliver support for existing systems and to develop new functionality across projects. * Alongside this you will take on responsibilities for backend testing and automation, working closely with the Technical Architect with a view to unifying standards across backend projects. A minimum of post-degree experience of 1 year is required for this post. Role Overview * You will work within agile teams across projects to learn and upskill in multiple technologies. Essential Experie
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      NEWFEATURED
      Senior Python Developer We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. As our Senior Backend Python Developer, you won’t just write code - you’ll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data scientists, and clients to deliver impactful, intelligent solutions. We’re on the hunt for a Senior Backend Developer with deep expertise in Python to become a driving force in our fast-growing, product-led tech company. Remote Working / Leeds, HQ 2 Days per month - Your Expertise: Hig
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      Software Engineer

      DWP Digital
      Upperthorpe, S3 7UF
      £44447 - £45447 per annum
      We're looking for a Software Engineer to join our development and maintenance teams and help keep the UK's welfare systems secure, reliable, and ready for the future. We empower our Software Engineers to work with freedom and autonomy. Pay up to £58,347, plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work life balance. Please note that you'll need to pass Security Clearance to take up this role. Digital with Purpose. DWP is the UK's largest government department. We help people into work, and make payments worth over £195bn a year to support and empower millions of people. You'll support critical services and play a key role in modernising legacy systems as we move to cloud platforms. The scale of what we do is extraordinary, and we'd love for you to join us. You are your role - We write code and
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      Python Developer - Commodities

      McGregor Boyall Associates Limited
      London
      £0650 - £700 per day
      A leading global financial institution is seeking a Python Developer (Contract) to join its Commodities Technology team. * 5+ years' Python development experience, ideally within trading, risk, or financial services. The Role - This group supports a fast-growing Commodities Index business that spans Oil, Gas, Power, Agriculture, and Metals, providing advanced analytics and tools for structuring and trading. You will play a key role in designing and delivering a new index back-testing platform, working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities - o Historical index back-testing - o Daily pricing and index level generation - o Wei
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      Python Developer - Finance 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
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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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      Junior Python Developer

      Oscar Associates (UK) Limited
      London
      £40000 - £45000 per annum
      Junior Software Engineer | £35-45k | Hybrid (UK) A growing data and tech start-up in the transport sector is looking for a Junior Software Engineer with 1-2 years of commercial experience to join their small, fast-moving team. * Python for data processing and backend logic * Strong coding skills in Python, SQL, and React - You'll be building data-driven solutions that solve real-world infrastructure challenges, working across the full stack and contributing to both backend systems and user-facing apps. This team is currently made up of 9 employees in a start-up company. It is a hybrid role with 3 days per week on-site in Central London. * SQL (PostgreSQL / SQL Server) for data querying and pipelines * React (TypeScript) for intuitive, modern UIs * Exposure to cloud platforms (AWS/Azure), Docker, or st
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      Software Developer

      Rise Technical Recruitment Limited
      ST14, Uttoxeter
      £45000 - £50000 per annum + 33 Days Holiday + Generous Pension
      This is an excellent opportunity for a Software Developer who specialises in PHP and is looking for an autonomous working environment, where you will play a key part in the maintenance, support and development of automated software interfaces. This is a fantastic opportunity for a Software Developer who is looking for an autonomous working environment and wants to play a key part within the business. In this varied role, you'll manage the maintenance, support, and development of automated software interfaces for laboratory instruments. This includes developing robust test strategies and documentation, implementing industry best practices for test automation, and maintaining documentation for all in-house developed software. The ideal candidate will have strong experience developing au
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      Lead Java Developer

      Get2Talent
      SW10, South West London
      From £75,000 to £95,000 per annum Plus benefits
      Lead the design, development, and testing of secure, scalable systems using Python or Java with modern front-end frameworks (e.g., React) Our client, a mission-led consultancy, is looking for an experienced Principal Software Engineer (Python or Java) to join their growing team. * Deep expertise in Python or Java, with strong full-stack engineering skills - If youre an experienced Principal Software Engineer with expertise in Python or Java, and youre excited to help deliver solutions that truly matter, wed love to hear from you. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive web applications that drive real impact. This is a senior-level opportunity for a hands-on engineer who enjoys
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      Software Engineer

      Anson Mccade
      M2, Manchester, M2 1BB
      GBP 55,000.00 - 65,000.00 per year;GBP 55,000.00 per year;GBP 65,000.0
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      AI Engineer

      Professional Technical Ltd
      London
      £80000 - £90000 per annum
      Own our AI models end-to-end: dataset strategy, training/fine-tuning, evaluation, optimization, and deployment to real hardware in the field. * Hands-on experience with Audio/Video AI - HuggingFace Transformers, SpeechBrain or torchaudio, one detection/pose stack (YOLO, MediaPipe). You'll turn messy real-world streams into robust, low-latency inference pipelines. What you'll do * Design, train, and fine-tune text/audio/vision models (e.g., DistilRoBERTa, wav2vec2, YOLO) for threat and aggression detection. * Build reproducible training pipelines (HF/ PyTorch/ SpeechBrain), incl. PEFT/LoRA, adapters, and transfer learning. * Optimize for real-time: quantization, pruning, ONNX/TensorRT, mixed precision, batching, caching. * Ship models to edge & cloud with CI/CD, versioning, and rollback; instrument latency and accuracy SLAs. * Create d
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      Junior C# Software Developer

      Sparta Global Limited
      S1, Sheffield
      Up to £25000 per annum + OTE £30K + Benefits
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      Python Developer

      Anson Mccade
      M2, Manchester, M2 1AB
      GBP 65,000.00 per year
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      Python Developer

      Oliver Bernard
      St James, SW1
      From £50,000 to £60,000 per annum + bonus of 10%-30% + stocks
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      Up to £70,000 per annum
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      Backend Engineer

      Bloc Recruitment
      Clerkenwell, EC1
      Up to £140k + Equity
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      McGregor Boyall Associates Limited
      EH1, Edinburgh
      Negotiable
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      Junior C# Automation Engineer

      Sparta Global Limited
      S1, Sheffield
      Up to £25000 per annum + OTE £30K + Benefits
      Automation Testing is at the core of defining, developing and testing products for businesses and their customers. Automation is a major component of agile teams who work diligently to deliver value in short time frames, the execution of scripts and their application in the DevOps pipeline can mean delivery of functional code in unprecedented timeframes. About Sparta Global - Embark on a transformative career journey with Sparta Global, where diversity, innovation, and passion for technology converge. We welcome individuals from all backgrounds, offering not just jobs, but dynamic careers in the tech industry. You'll work alongside enthusiastic professionals, receiving top-tier training and mentorship to hone your skills for success in both public and private sectors. Our commitment to designing impactful careers and coaching future l
      Automation Testing is at the core of defining, developing and testing products for businesses and their customers. Automation is a major component of agile teams who work diligently to deliver value in short time frames, the execution of scripts and their application in the DevOps pipeline can mean delivery of functional code in unprecedented timeframes. About Sparta Global - Embark on a transformative career journey with Sparta Global, where diversity, innovation, and passion for technology converge. We welcome individuals from all backgrounds, offering not just jobs, but dynamic careers in the tech industry. You'll work alongside enthusiastic professionals, receiving top-tier training and mentorship to hone your skills for success in both public and private sectors. Our commitment to designing impactful careers and coaching future l
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      Senior Python Developer

      Hays
      London
      £700.0 - £800.0 per day + Up to £800pd In-scope
      I am currently working with a London-based financial services consultancy who are actively seeking multiple Senior Python Developers to join one of their prestigious end clients in the Investment Banking space. * Extensive Python Development experience in Financial Services/Investment Banking - Mandatory. * Strong experience with relational databases. * Extensive AWS experience. * Good experience with data modelling. * Strong experience with Spark. * Up to £800pd in-scope via Umbrella. * Initial 6-month contract with extensions. * London-based hybrid working. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruit
      I am currently working with a London-based financial services consultancy who are actively seeking multiple Senior Python Developers to join one of their prestigious end clients in the Investment Banking space. * Extensive Python Development experience in Financial Services/Investment Banking - Mandatory. * Strong experience with relational databases. * Extensive AWS experience. * Good experience with data modelling. * Strong experience with Spark. * Up to £800pd in-scope via Umbrella. * Initial 6-month contract with extensions. * London-based hybrid working. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruit
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      NEW

      Full Stack Developer (python/AWS)

      Stott & May Professional Search Limited
      London
      Up to £0.00 per annum
      We are seeking a talented Full Stack Engineer with strong experience in AWS and Python to join our growing team. - Proven experience as a Full Stack Engineer or similar role. - Design, develop, and maintain scalable web applications using Python (Django, Flask, or FastAPI). - Architect and implement cloud-native solutions on AWS (EC2, Lambda, S3, RDS, etc.). - Collaborate with front-end developers to deliver seamless user experiences (React, Vue, or Angular). - Strong proficiency in Python and at least one major web framework (Django, Flask, FastAPI). - Hands-on experience with AWS services (EC2, Lambda, S3, RDS, CloudFormation, etc.). - Experience with Infrastructure as Code (Terrafo
      We are seeking a talented Full Stack Engineer with strong experience in AWS and Python to join our growing team. - Proven experience as a Full Stack Engineer or similar role. - Design, develop, and maintain scalable web applications using Python (Django, Flask, or FastAPI). - Architect and implement cloud-native solutions on AWS (EC2, Lambda, S3, RDS, etc.). - Collaborate with front-end developers to deliver seamless user experiences (React, Vue, or Angular). - Strong proficiency in Python and at least one major web framework (Django, Flask, FastAPI). - Hands-on experience with AWS services (EC2, Lambda, S3, RDS, CloudFormation, etc.). - Experience with Infrastructure as Code (Terrafo
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      NEW
      Job Title: Python Developer Our client within financial services is looking to hire a Python Developer to work as a contractor on a number of middle office and risk initiatives. This will be a multi year opportunity for someone with a strongbackground as a Python Developer and has worked at a financial services company previously. Job Description - Some of the projects you'll support are as follows; * Liquidity reporting system upgrades * Collateral Management platform optimisation. * Securities Lending programme and system upgrades. * Risk systems support * Developing large, business critical solutions * Supporting existing functionality and expanding upon it for new feature requests - This will be long term contracting, with the role being based in Bromley and they'll require 3 days a week onsite. The rates can pay
      Job Title: Python Developer Our client within financial services is looking to hire a Python Developer to work as a contractor on a number of middle office and risk initiatives. This will be a multi year opportunity for someone with a strongbackground as a Python Developer and has worked at a financial services company previously. Job Description - Some of the projects you'll support are as follows; * Liquidity reporting system upgrades * Collateral Management platform optimisation. * Securities Lending programme and system upgrades. * Risk systems support * Developing large, business critical solutions * Supporting existing functionality and expanding upon it for new feature requests - This will be long term contracting, with the role being based in Bromley and they'll require 3 days a week onsite. The rates can pay
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      PREMIUM

      Lead AI Software Engineer - Consultant

      We Are Dcoded Limited
      M1, Manchester
      £100000.00 - £115000.00 per annum + Equity
      Lead AI Software Engineer - LegalTech & AI SaaS (Equity Offered) As Lead AI Software Engineer, you'll combine hands-on technical expertise with a client-facing mindset. We Are Dcoded have partnered with a true giant killer - Theyre building the next big thing in AI-powered SaaS - a fresh, disruptive platform set to revolutionise a highly regulated industry. * Leading the design and development of an AI powered SaaS platform * Exploring and applying cutting-edge AI technologies - experience with LLMs, Claude.AI, or Crew AI would be a huge advantage * Championing best practice in software engineering, from code quality to scalability * Exposure to AI/ML, particularly la
      Lead AI Software Engineer - LegalTech & AI SaaS (Equity Offered) As Lead AI Software Engineer, you'll combine hands-on technical expertise with a client-facing mindset. We Are Dcoded have partnered with a true giant killer - Theyre building the next big thing in AI-powered SaaS - a fresh, disruptive platform set to revolutionise a highly regulated industry. * Leading the design and development of an AI powered SaaS platform * Exploring and applying cutting-edge AI technologies - experience with LLMs, Claude.AI, or Crew AI would be a huge advantage * Championing best practice in software engineering, from code quality to scalability * Exposure to AI/ML, particularly la
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