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14 Permanent API jobs in South Croydon + 10 miles
509 exact matches jobs are outside your preferred location
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Senior .Net Developer
Senior .Net Developer
Halian Technology Limited
W1, Central London
From £70,000 to £90,000 per annum Plus bonus and benefits
Lead cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
Lead cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
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API & Database Development - Experienced in building and maintaining robust APIs and managing the databases that support them.
API & Database Development - Experienced in building and maintaining robust APIs and managing the databases that support them.
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Software Engineer | Hybrid | £90,000 | React.js | Python | TypeScript | AWS - Are you passionate about renewable energy and seeking an opportunity to make a positive impact on the environment? La Fosse has partnered with a rapidly growing renewable energy company, seeking highly motivated Senior Full Stack Engineers to join their close-knit product team and drive innovation in sustainable technology. Core Tech Stack: React.js, Python, TypeScript, FAST APIs, SQL Alchemy, Docker, AWS * Lead the development and enhancement of their in-house product management and customer-facing platforms, achieving feature parity with an existing SaaS solution and driving innovation post-migration to build a scalable, secure, market-leading system. * Build scalable, secure full-stack applications using React.js, TypeScript, Python, and FastAPI, following modern development best practise
Software Engineer | Hybrid | £90,000 | React.js | Python | TypeScript | AWS - Are you passionate about renewable energy and seeking an opportunity to make a positive impact on the environment? La Fosse has partnered with a rapidly growing renewable energy company, seeking highly motivated Senior Full Stack Engineers to join their close-knit product team and drive innovation in sustainable technology. Core Tech Stack: React.js, Python, TypeScript, FAST APIs, SQL Alchemy, Docker, AWS * Lead the development and enhancement of their in-house product management and customer-facing platforms, achieving feature parity with an existing SaaS solution and driving innovation post-migration to build a scalable, secure, market-leading system. * Build scalable, secure full-stack applications using React.js, TypeScript, Python, and FastAPI, following modern development best practise
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Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs.
Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs.
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Python SQL Software Engineer - Corporate Finance
Python SQL Software Engineer - Corporate Finance
McGregor Boyall Associates Limited
The City, EC3V 9AA
£90000 - £100000 per annum + Great Bonus + Benefits + Pension
AI Tools: Demonstrable ability to create custom GPT's and Chatbots using AI Tools (we use Google Gemini API (and Notebook LM), Anthropics Claude AI, Microsoft CoPilot, and OpenAI's Chat GPT).
AI Tools: Demonstrable ability to create custom GPT's and Chatbots using AI Tools (we use Google Gemini API (and Notebook LM), Anthropics Claude AI, Microsoft CoPilot, and OpenAI's Chat GPT).
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Strong experience with ingesting and manipulating data from API's, raw files and databases.
Strong experience with ingesting and manipulating data from API's, raw files and databases.
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Full Stack Developer (FinTech/ Front-End Basis)
Full Stack Developer (FinTech/ Front-End Basis)
Ernest Gordon Recruitment
SS13, Basildon
£55000.00 - £65000.00 per annum + Training + Company Benefits
Basildon - Hybrid £55,000 - £65,000 + Training + Progression + Healthcare Coverage + Benefits - Are you a Full Stack Developer with a strong front-end focus, looking to join a talented team building cutting-edge websites for global FinTech clients, using modern technologies and receiving great training to support your progression into a senior role? Are you looking to join a company that genuinely invests in your future, with unlimited training opportunities and a best-in-class e-learning platform designed to keep you ahead of the curve in a fast-evolving tech landscape? In this company is a true disruptor in the insurance industry, blending cutting-edge technology with every aspect of the sector. Their automation solutions help insurers stay agile and efficient by streamlining time-consuming tasks.
Basildon - Hybrid £55,000 - £65,000 + Training + Progression + Healthcare Coverage + Benefits - Are you a Full Stack Developer with a strong front-end focus, looking to join a talented team building cutting-edge websites for global FinTech clients, using modern technologies and receiving great training to support your progression into a senior role? Are you looking to join a company that genuinely invests in your future, with unlimited training opportunities and a best-in-class e-learning platform designed to keep you ahead of the curve in a fast-evolving tech landscape? In this company is a true disruptor in the insurance industry, blending cutting-edge technology with every aspect of the sector. Their automation solutions help insurers stay agile and efficient by streamlining time-consuming tasks.
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Shopify Developer
Shopify Developer
Halian Technology Limited
W1, Central London
From £70,000 to £90,000 per annum Plus bonus and benefits
Strong proficiency in Shopifys liquid templating language, API integrations, custom app development, and Shopify Plus.
Strong proficiency in Shopifys liquid templating language, API integrations, custom app development, and Shopify Plus.
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High qps, high SLA API deployment
High qps, high SLA API deployment
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integration'segal client is seeking an experienced IntApp engineer to join their growing technology function. The successful candidate will take ownership of several applications which focuses on the firms IntApp Conflicts, Intake, Walls, Terms and all related systems and tools. The role will also be involved the migration of my client's risk platform to the cloud. * Skills and experience required * Strong commercial experience and knowledge of IntApp configuration tools * Strong understanding and experience with integration's such as APIs, database to database FTP and web services * Strong knowledge of cloud systems such as integrations features and release management * Knowledge of AI and GenAI and its application within the legal sector * First class communication and stakeholder management skills * Commercial experience of SQL Server
integration'segal client is seeking an experienced IntApp engineer to join their growing technology function. The successful candidate will take ownership of several applications which focuses on the firms IntApp Conflicts, Intake, Walls, Terms and all related systems and tools. The role will also be involved the migration of my client's risk platform to the cloud. * Skills and experience required * Strong commercial experience and knowledge of IntApp configuration tools * Strong understanding and experience with integration's such as APIs, database to database FTP and web services * Strong knowledge of cloud systems such as integrations features and release management * Knowledge of AI and GenAI and its application within the legal sector * First class communication and stakeholder management skills * Commercial experience of SQL Server
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Senior Software Engineer - Client Identity
Senior Software Engineer - Client Identity
McGregor Boyall Associates Limited
EC1, City of London
Partnership bonus + Traget bonus
Job Title: Senior Software Engineer - Client Identity - Location: Hybrid (Manchester/London) About the Role - Join our newly formed cybersecurity team and take on a crucial role in protecting clients across the UK and Europe. As a Senior Software Engineer in the Client Identity team, you'll work on developing and enhancing modern cloud-based cybersecurity services, ensuring the security and integrity of authentication solutions for our clients. You'll be at the forefront of defending against cyber threats and creating seamless login experiences for hundreds of thousands of users. Role Responsibilities * Develop and enhance cloud-based cybersecurity services across all layers, from databases to Content Delivery Networks (CDNs). * Implement secure authentication solutions, including Multi-Factor Authentication (MFA) and Passkeys.
Job Title: Senior Software Engineer - Client Identity - Location: Hybrid (Manchester/London) About the Role - Join our newly formed cybersecurity team and take on a crucial role in protecting clients across the UK and Europe. As a Senior Software Engineer in the Client Identity team, you'll work on developing and enhancing modern cloud-based cybersecurity services, ensuring the security and integrity of authentication solutions for our clients. You'll be at the forefront of defending against cyber threats and creating seamless login experiences for hundreds of thousands of users. Role Responsibilities * Develop and enhance cloud-based cybersecurity services across all layers, from databases to Content Delivery Networks (CDNs). * Implement secure authentication solutions, including Multi-Factor Authentication (MFA) and Passkeys.
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Full Stack AI Engineer | £70k-£130k + Benefits + Shares| London (Hybrid, 3 days a week) Are you a Full Stack AI Engineer looking for a role at the cutting edge of AI, Generative Models, and scalable cloud solutions? Do you thrive in fast-paced environments where your work directly influences the next generation of AI applications? If so, this is the opportunity for you. Why Join? * Develop and deploy scalable micro-services and data pipelines that power AI-driven applications. * Gain hands-on experience with LLMs, fine-tuning, prompting and AI-powered solutions to drive innovation. * Design and implement quality assurance/testing frameworks to ensure robust AI performance. * Work closely with other AI specialists, engineers, and product leaders to solve complex technical challenges for FTSE 100 clients.
Full Stack AI Engineer | £70k-£130k + Benefits + Shares| London (Hybrid, 3 days a week) Are you a Full Stack AI Engineer looking for a role at the cutting edge of AI, Generative Models, and scalable cloud solutions? Do you thrive in fast-paced environments where your work directly influences the next generation of AI applications? If so, this is the opportunity for you. Why Join? * Develop and deploy scalable micro-services and data pipelines that power AI-driven applications. * Gain hands-on experience with LLMs, fine-tuning, prompting and AI-powered solutions to drive innovation. * Design and implement quality assurance/testing frameworks to ensure robust AI performance. * Work closely with other AI specialists, engineers, and product leaders to solve complex technical challenges for FTSE 100 clients.
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Experience of API definition
Experience of API definition
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Use your knowledge of API integrations and data visualisation tools to streamline operations and boost productivity * Experience with API integrations, data migrations, and maintaining sales system performance
Use your knowledge of API integrations and data visualisation tools to streamline operations and boost productivity * Experience with API integrations, data migrations, and maintaining sales system performance
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Experience of API definition
Experience of API definition
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Are you a cloud-savvy Full Stack Developer looking for your next big challenge? This company is a high-growth, purpose-driven organisation on a mission to empower UK business leaders and scale ambitious mid-sized companies into tomorrow’s giants. As a Full Stack Developer (Cloud), you will play a critical role in designing and delivering innovative digital solutions that directly support business leaders and entrepreneurs across the UK. You will work across the full technology stack—building, integrating, and optimising applications using modern cloud infrastructure and development tools. * Design, develop, and maintain robust full-stack applications * Deploy and manage cloud infrastructure using AWS (preferred), Azure, or GCP * Collaborate cross-functionally with designers, marketers, and product teams * Develop and integrate RESTful APIs and third-party service
Are you a cloud-savvy Full Stack Developer looking for your next big challenge? This company is a high-growth, purpose-driven organisation on a mission to empower UK business leaders and scale ambitious mid-sized companies into tomorrow’s giants. As a Full Stack Developer (Cloud), you will play a critical role in designing and delivering innovative digital solutions that directly support business leaders and entrepreneurs across the UK. You will work across the full technology stack—building, integrating, and optimising applications using modern cloud infrastructure and development tools. * Design, develop, and maintain robust full-stack applications * Deploy and manage cloud infrastructure using AWS (preferred), Azure, or GCP * Collaborate cross-functionally with designers, marketers, and product teams * Develop and integrate RESTful APIs and third-party service
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Description - The Identity & Access Management (IAM) team, sitting within the Cyber Security function, ensures that access for all Motability Operations (MO) employees and customers is correct, appropriate, and secure. The IAM Technical Lead is responsible for the technical direction, engineering assurance, and operational stability of our IAM services across both internal and external domains. This includes identity federation, authentication, access governance, lifecycle automation, and privileged access planning. This is a hands-on technical leadership role, accountable for guiding a multidisciplinary team of engineers and contractors, ensuring consistent delivery, high service availability, and secure integration of identity services into core business platforms. The role also plays a key part in the transition from externally delivered IAM solutions to sustainabl
Description - The Identity & Access Management (IAM) team, sitting within the Cyber Security function, ensures that access for all Motability Operations (MO) employees and customers is correct, appropriate, and secure. The IAM Technical Lead is responsible for the technical direction, engineering assurance, and operational stability of our IAM services across both internal and external domains. This includes identity federation, authentication, access governance, lifecycle automation, and privileged access planning. This is a hands-on technical leadership role, accountable for guiding a multidisciplinary team of engineers and contractors, ensuring consistent delivery, high service availability, and secure integration of identity services into core business platforms. The role also plays a key part in the transition from externally delivered IAM solutions to sustainabl
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Head of Data Science - London - Fintech
Head of Data Science - London - Fintech
Transparent Technologies
London
£100000 - £130000 per annum + 20% bonus, pension, healthcare
Head of Data Science, Python, SQL, Modelling, ML, Fintech, AI, LLMs, RAG, Open AI API, Loans, Lending, London
Head of Data Science, Python, SQL, Modelling, ML, Fintech, AI, LLMs, RAG, Open AI API, Loans, Lending, London
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Royal Canin is undergoing a significant Digital Transformation journey. Our ability to solve the most critical problems across Mars in a User Centric way through Data & Analytics is fundamental to our growth ambition and transformation. Significant early success in this journey, and the introduction of many critical foundational capabilities, means that we are looking to accelerate our ability to solve problems and ultimately drive value for Mars Inc. The opportunities are significant for Mars, and the opportunities for those working in this space are both hugely exciting and rewarding. Connecting and deriving break-through insight from our Royal Canin and Petcare data ecosystems, leveraging the rapidly growing world of external data to get closer to our customers and consumers than ever before, and unlocking efficiencies and automation across our End-To-End Value Cha
Royal Canin is undergoing a significant Digital Transformation journey. Our ability to solve the most critical problems across Mars in a User Centric way through Data & Analytics is fundamental to our growth ambition and transformation. Significant early success in this journey, and the introduction of many critical foundational capabilities, means that we are looking to accelerate our ability to solve problems and ultimately drive value for Mars Inc. The opportunities are significant for Mars, and the opportunities for those working in this space are both hugely exciting and rewarding. Connecting and deriving break-through insight from our Royal Canin and Petcare data ecosystems, leveraging the rapidly growing world of external data to get closer to our customers and consumers than ever before, and unlocking efficiencies and automation across our End-To-End Value Cha
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£70K -85k - UK - Fully Remote - Excited by the challenge of working at a fast-moving cybersecurity startup? We're looking for a Senior Full Stack Engineer to join their team on a fully remote bases in the UK, where you'll have a real impact working with cutting-edge technology to help organisations tackle security threats in real time. This is a fully remote role with a starting salary between £70k -£85k. For this role you MUST be resident and eligible to work in the UK, unsupported by a visa. * Build and scale customer-facing applications that make a difference. * Lead integration projects and develop efficient data workflows. * Solve complex problems involving large datasets and data control. * Backend: TypeScript, Sequelize ORM, Awareness of Nest, GraphQL, REST APIs, MySQL, NoSQL, Kafka * Frontend: Angular, React.js, Next.js, TypeScript, Chakra UI, React Query, Gra
£70K -85k - UK - Fully Remote - Excited by the challenge of working at a fast-moving cybersecurity startup? We're looking for a Senior Full Stack Engineer to join their team on a fully remote bases in the UK, where you'll have a real impact working with cutting-edge technology to help organisations tackle security threats in real time. This is a fully remote role with a starting salary between £70k -£85k. For this role you MUST be resident and eligible to work in the UK, unsupported by a visa. * Build and scale customer-facing applications that make a difference. * Lead integration projects and develop efficient data workflows. * Solve complex problems involving large datasets and data control. * Backend: TypeScript, Sequelize ORM, Awareness of Nest, GraphQL, REST APIs, MySQL, NoSQL, Kafka * Frontend: Angular, React.js, Next.js, TypeScript, Chakra UI, React Query, Gra
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£70K -85k - UK - Fully Remote - Excited by the challenge of working at a fast-moving cybersecurity startup? We're looking for a Senior Full Stack Engineer to join their team on a fully remote bases in the UK, where you'll have a real impact working with cutting-edge technology to help organisations tackle security threats in real time. This is a fully remote role with a starting salary between £70k -£85k. For this role you MUST be resident and eligible to work in the UK, unsupported by a visa. * Build and scale customer-facing applications that make a difference. * Lead integration projects and develop efficient data workflows. * Solve complex problems involving large datasets and data control. * Backend: TypeScript, NestJS, Sequelize ORM, GraphQL, REST APIs, MySQL, NoSQL, Kafka * Frontend: React.js, Next.js, TypeScript, Chakra UI, React Query, GraphQL
£70K -85k - UK - Fully Remote - Excited by the challenge of working at a fast-moving cybersecurity startup? We're looking for a Senior Full Stack Engineer to join their team on a fully remote bases in the UK, where you'll have a real impact working with cutting-edge technology to help organisations tackle security threats in real time. This is a fully remote role with a starting salary between £70k -£85k. For this role you MUST be resident and eligible to work in the UK, unsupported by a visa. * Build and scale customer-facing applications that make a difference. * Lead integration projects and develop efficient data workflows. * Solve complex problems involving large datasets and data control. * Backend: TypeScript, NestJS, Sequelize ORM, GraphQL, REST APIs, MySQL, NoSQL, Kafka * Frontend: React.js, Next.js, TypeScript, Chakra UI, React Query, GraphQL
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Senior Product Owner
Senior Product Owner
Halian Technology Limited
W1, Central London
From £90,000 to £110,000 per annum Plus bonus and benefits
My client is growing fintech company, redefining the way financial transactions are processed across borders. As a leader in the payments space, they leverage cutting-edge technology to provide secure, fast, and scalable solutions to a global customer base. They are seeking a Senior Product Owner to join their dynamic team and drive the development of our payments platform and banking network integrations. As a Senior Product Owner, you will take ownership of the product roadmap, strategy, and execution of key payments-related initiatives, including integration with banking networks, SWIFT, SEPA, and other payment processing protocols. You will work closely with cross-functional teams (engineering, design, operations, and business stakeholders) to build and enhance features that improve our payments infrastructure and create seamless experiences for our customers.
My client is growing fintech company, redefining the way financial transactions are processed across borders. As a leader in the payments space, they leverage cutting-edge technology to provide secure, fast, and scalable solutions to a global customer base. They are seeking a Senior Product Owner to join their dynamic team and drive the development of our payments platform and banking network integrations. As a Senior Product Owner, you will take ownership of the product roadmap, strategy, and execution of key payments-related initiatives, including integration with banking networks, SWIFT, SEPA, and other payment processing protocols. You will work closely with cross-functional teams (engineering, design, operations, and business stakeholders) to build and enhance features that improve our payments infrastructure and create seamless experiences for our customers.
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Location: London, Hybrid EC3A 3DE - Salary: Competitive, DOE, + Excellent Benefits! Contract Type: Full Time, Permanent - What We Can Offer You: Hybrid Working, Performance-Related Bonus, Life Assurance, Additional Holiday Purchase, Health Cash Plan, Subsidised Gym Memberships, Cycle to Work scheme, Discount Vouchers and Access to Wellbeing Resources! Why Do We Want You - We are seeking a Product Data Analyst to join our Product & Innovation team at Axco, part of Wilmington Plc. We're looking for a Power BI expert to maintain Axco's existing integrations and to introduce new data and dashboards in the future. You will play a key role in deriving value from datasets to shape and inform new Axco products. We are seeking someone with experience in managing large datasets, creating reports, and a background in product ownership or product management.
Location: London, Hybrid EC3A 3DE - Salary: Competitive, DOE, + Excellent Benefits! Contract Type: Full Time, Permanent - What We Can Offer You: Hybrid Working, Performance-Related Bonus, Life Assurance, Additional Holiday Purchase, Health Cash Plan, Subsidised Gym Memberships, Cycle to Work scheme, Discount Vouchers and Access to Wellbeing Resources! Why Do We Want You - We are seeking a Product Data Analyst to join our Product & Innovation team at Axco, part of Wilmington Plc. We're looking for a Power BI expert to maintain Axco's existing integrations and to introduce new data and dashboards in the future. You will play a key role in deriving value from datasets to shape and inform new Axco products. We are seeking someone with experience in managing large datasets, creating reports, and a background in product ownership or product management.
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Senior Software Developer
Senior Software Developer
Lean People Services Limited
Luton, Bedfordshire
From £65,000 to £75,000 per annum
£65,000-£75,000 per annum - Full Time Mon-Fri - Our Client provide remote diagnostic solutions and services to the automotive industry. They offer cutting-edge, expert diagnostics using both after-market and original equipment manufacturer tools to provide safe and accurate repairs. The company was founded in 2010 and is headquartered in Plano, TX with UK offices in Peterlee and Bedfordshire. As more automotive software technologies emerge, including autonomous driving, advanced diagnostics, vehicle connectivity, digital cockpits the Company aims to gain a first-mover advantage by developing software solutions with the help of automotive software engineers. If the idea of making an impact on a project lifecycle sounds appealing from its inception down to testing and deployment appeals to you, keep on reading!
£65,000-£75,000 per annum - Full Time Mon-Fri - Our Client provide remote diagnostic solutions and services to the automotive industry. They offer cutting-edge, expert diagnostics using both after-market and original equipment manufacturer tools to provide safe and accurate repairs. The company was founded in 2010 and is headquartered in Plano, TX with UK offices in Peterlee and Bedfordshire. As more automotive software technologies emerge, including autonomous driving, advanced diagnostics, vehicle connectivity, digital cockpits the Company aims to gain a first-mover advantage by developing software solutions with the help of automotive software engineers. If the idea of making an impact on a project lifecycle sounds appealing from its inception down to testing and deployment appeals to you, keep on reading!
Job Title: Full Stack Developer - Location: Reading (Hybrid) Salary: Up to £45,000 DOE - Ready to take your development career to the next level? We're hiring a Full Stack Developer to join a growing tech team in Reading. You'll work on high-impact digital products using modern frameworks, cloud platforms, and DevOps tools in a collaborative and forward-thinking environment. Why Join Us * Hybrid flexibility - 2-3 days in-office * Modern tech stack - React, .NET Core, Azure, Docker and more * Career development - Ongoing training and mentorship * Meaningful projects - Real-time systems, AI integrations, and cloud-native solutions * Supportive culture - Agile teams, cross-functional collaboration, and continuous learning - What You'll Do * Build scalable, high-performing full-stack applications * Develop responsive, modern UIs using React (or Vue/Angular)
Job Title: Full Stack Developer - Location: Reading (Hybrid) Salary: Up to £45,000 DOE - Ready to take your development career to the next level? We're hiring a Full Stack Developer to join a growing tech team in Reading. You'll work on high-impact digital products using modern frameworks, cloud platforms, and DevOps tools in a collaborative and forward-thinking environment. Why Join Us * Hybrid flexibility - 2-3 days in-office * Modern tech stack - React, .NET Core, Azure, Docker and more * Career development - Ongoing training and mentorship * Meaningful projects - Real-time systems, AI integrations, and cloud-native solutions * Supportive culture - Agile teams, cross-functional collaboration, and continuous learning - What You'll Do * Build scalable, high-performing full-stack applications * Develop responsive, modern UIs using React (or Vue/Angular)
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