Date posted
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Salaries

88 Permanent API jobs in Mayfair + 10 miles

Backend Software Engineer Python API

Client Server
Queens Gate, SW7
£100000 - £130000 per annum + bonus + benefits
Backend Software Engineer / Developer (Python API) London to £130k - Apply now to find out more about this Backend Software Engineer / Developer (Python API Git) opportunity.
Backend Software Engineer / Developer (Python API) London to £130k - Apply now to find out more about this Backend Software Engineer / Developer (Python API Git) opportunity.
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PREMIUMNEW

Go Developer API

Client Server
The City, EC2
£100000 - £140000 per annum + benefits
Go Developer / Backend Software Engineer (Golang API) Remote UK to £140k - Apply now to find out more about this Go Developer / Backend Software Engineer (Golang API) opportunity.
Go Developer / Backend Software Engineer (Golang API) Remote UK to £140k - Apply now to find out more about this Go Developer / Backend Software Engineer (Golang API) opportunity.
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PREMIUMNEW

Software Engineer JavaScript Node.js AWS API

Client Server
SE1, South East London
£70000 - £85000 per annum + benefits
Software Engineer / Developer (JavaScript Node.js AWS API) London / WFH to £85k * You have a good knowledge of AWS, including familiarity with AWS Lambda, API Gateway, S3, CloudWatch - Apply now to find out more about this Software Engineer / Developer (JavaScript Node.js AWS API) opportunity.
Software Engineer / Developer (JavaScript Node.js AWS API) London / WFH to £85k * You have a good knowledge of AWS, including familiarity with AWS Lambda, API Gateway, S3, CloudWatch - Apply now to find out more about this Software Engineer / Developer (JavaScript Node.js AWS API) opportunity.
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PREMIUMNEW

Technical Product Owner - B2B / B2C / AI / API

Sanderson Recruitment
EC1, City of London
£55000 - £60000 per annum
Technical Product Owner / Technical Product Manager / Software Product Owner / SaaS Product Owner - Fully remote £55,000 - £60,000 - Our client is passionate bout redefining engineering and AI automation. As we expand into more intelligent and scalable product offerings, we are looking for a Product Manager to lead a core product area, transforming strategic vision into tangible results. This is a hands-on, cross-functional role ideal for someone excited by high-impact delivery, AI innovation, and creating structured product systems in a rapidly growing tech team. As Product Owner, you'll own and drive the roadmap for one of our core product areas. We are looking for someone who thrives in fast-paced environments and enjoys taking an idea from concept to customer impact. You should have a strong understanding of both product lifecycle management and the technical capa
Technical Product Owner / Technical Product Manager / Software Product Owner / SaaS Product Owner - Fully remote £55,000 - £60,000 - Our client is passionate bout redefining engineering and AI automation. As we expand into more intelligent and scalable product offerings, we are looking for a Product Manager to lead a core product area, transforming strategic vision into tangible results. This is a hands-on, cross-functional role ideal for someone excited by high-impact delivery, AI innovation, and creating structured product systems in a rapidly growing tech team. As Product Owner, you'll own and drive the roadmap for one of our core product areas. We are looking for someone who thrives in fast-paced environments and enjoys taking an idea from concept to customer impact. You should have a strong understanding of both product lifecycle management and the technical capa
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FEATURED
AWS, Azure, Kubernetes, Service Mesh, API gateways, and API security, Python, JavaScript, GoLang, Terraform, CloudFormation (AWS), and Azure Resource Manager (ARM) templates. * Experience with AWS, Azure, Kubernetes, Service Mesh, API gateways, and API security (authentication and authorization).
AWS, Azure, Kubernetes, Service Mesh, API gateways, and API security, Python, JavaScript, GoLang, Terraform, CloudFormation (AWS), and Azure Resource Manager (ARM) templates. * Experience with AWS, Azure, Kubernetes, Service Mesh, API gateways, and API security (authentication and authorization).
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Senior Java Developer Spring Boot

Client Server
The City, EC2
£70000 - £80000 per annum + bonus + benefits
You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications with a focus on backend Java development and API implementation within an AWS environment.
You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications with a focus on backend Java development and API implementation within an AWS environment.
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PREMIUMNEW

.NET Developer

Halian Technology Limited
W1, Central London
From £55,000 to £70,000 per annum Plus bonus and benefits
Work on cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
Work on cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
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Senior Full Stack Developer Java JavaScript React

Client Server
The City, EC2
£70000 - £80000 per annum + bonus + benefits
Senior Full Stack Developer / Software Engineer (Java JavaScript React) London to £80k - Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript / TypeScript, React and React Native front end work. You'll join a team of finance entrepreneurs and technologists in City based office three days a week, there's a smart dress code and flexibility to work from home two da
Senior Full Stack Developer / Software Engineer (Java JavaScript React) London to £80k - Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript / TypeScript, React and React Native front end work. You'll join a team of finance entrepreneurs and technologists in City based office three days a week, there's a smart dress code and flexibility to work from home two da
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PREMIUMNEW

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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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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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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AI Engineer - London

Transparent Technologies
The City, EC2
£70000 - £130000 per annum
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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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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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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FEATUREDNEW

Full Stack Developer (Cloud)

COREcruitment International
N1, North London
£60k per year + /
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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FEATUREDNEW
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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Product Data Analyst

AXCO
The City, EC3A 3DE
Competitive DOE + Excellent Benefits!
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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FEATUREDNEW

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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Lead Engineer

La Fosse
SE1, South East London
£90k - 110k per year
La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for Lead Engineers with a strong background in full-stack JavaScript development to join their growing team. As a Lead Engineer, you’ll act as the technical pillar of a team of 5–7 engineers, working closely with an Engineering Manager who will handle performance reviews and one-to-ones. * Shaping technical roadmaps * Driving architectural decisions * Solving complex engineering challenges * Defining technology strategies and making informed tech choices - Your mission: Build greenfield systems from the ground up, with opportunities to explore AI, automation, and industry-leading engineering practices. What They're Looking For * 6+ years of technical experience with the Full Stack JavaScript ecosystem * A track record of success in mentoring, technical leadership, and st
La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for Lead Engineers with a strong background in full-stack JavaScript development to join their growing team. As a Lead Engineer, you’ll act as the technical pillar of a team of 5–7 engineers, working closely with an Engineering Manager who will handle performance reviews and one-to-ones. * Shaping technical roadmaps * Driving architectural decisions * Solving complex engineering challenges * Defining technology strategies and making informed tech choices - Your mission: Build greenfield systems from the ground up, with opportunities to explore AI, automation, and industry-leading engineering practices. What They're Looking For * 6+ years of technical experience with the Full Stack JavaScript ecosystem * A track record of success in mentoring, technical leadership, and st
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FEATUREDNEW

Salesforce Architect - Core Salesforce

Stott & May Professional Search Limited
TW3, Hounslow
£95000 - £107000.00 per annum
Location: London (Hybrid) Salary: £107,000 + Up to 25% Bonus + Up to 12% Pension + £4,000 Travel Allowance - Department: Information Technology - Architecture - Shape the Future of Digital Commerce and Customer Experience - We're seeking an experienced Salesforce Architect to lead the technical strategy, design, and delivery of enterprise-scale solutions across Salesforce platforms. This is a key leadership role for someone passionate about customer-centric technology, scalable architecture, and driving digital transformation in a complex and fast-paced environment. You'll play a critical role in evolving our e-commerce and customer engagement platforms using Salesforce Commerce Cloud, Service Cloud, Experience Cloud, and Order Management. What You'll Be Doing - Architect and implement scalable, high-performance Salesforce solutions tailored to business needs.
Location: London (Hybrid) Salary: £107,000 + Up to 25% Bonus + Up to 12% Pension + £4,000 Travel Allowance - Department: Information Technology - Architecture - Shape the Future of Digital Commerce and Customer Experience - We're seeking an experienced Salesforce Architect to lead the technical strategy, design, and delivery of enterprise-scale solutions across Salesforce platforms. This is a key leadership role for someone passionate about customer-centric technology, scalable architecture, and driving digital transformation in a complex and fast-paced environment. You'll play a critical role in evolving our e-commerce and customer engagement platforms using Salesforce Commerce Cloud, Service Cloud, Experience Cloud, and Order Management. What You'll Be Doing - Architect and implement scalable, high-performance Salesforce solutions tailored to business needs.
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Occasionally, being able to lend hands-on support to the team working on and using the following technologies: Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX), Visual Studio Code, Git, CI/CD, AWS * Technical knowledge and understanding of Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX); Sales cloud essential,?marketing cloud desirable, CPQ cloud?desirable,?
Occasionally, being able to lend hands-on support to the team working on and using the following technologies: Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX), Visual Studio Code, Git, CI/CD, AWS * Technical knowledge and understanding of Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX); Sales cloud essential,?marketing cloud desirable, CPQ cloud?desirable,?
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Software Developer (Microsoft Stack)

Solus Accident Repair Centres
North London, London
GBP £35,000.00/Yr. - GBP £50,000.00/Yr.
Work across a wide range of technologies, across web, mobile apps, API, backend, and databases which are currently hosted within Azure.
Work across a wide range of technologies, across web, mobile apps, API, backend, and databases which are currently hosted within Azure.
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Frequently Asked Questions

How many permanent API jobs are there in Mayfair?
There are 88 permanent API jobs within 10 miles of Mayfair available on Totaljobs right now.
Where in Mayfair are these permanent jobs?
You can find permanent jobs in The City, City (EC2), St James, Moorgate.
What other similar jobs are there to permanent API jobs in Mayfair?
As well as permanent API jobs in Mayfair, you can find permanent Junior Cloud Engineer, Service, Service Design, amongst many others.