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3 Work From Home API jobs in East Sussex + 20 miles
111 exact matches jobs are outside your preferred location
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About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution.
About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution.
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Salesforce Developer
Salesforce Developer
Halian Technology Limited
Central London (W1)
From £50,000 to £60,000 per annum Plus bonus and benefits
Job Specification: Mid-Level Salesforce Developer (FinTech) Location:Hybrid - Employment Type:Full-time - Level:Mid-Level - About the Role - We are seeking a skilledMid-Level Salesforce Developerto join my clients growing fintech engineering team. You will be responsible for developing, enhancing, and maintaining our Salesforce platform to support high-performance financial products, compliant workflows, and exceptional customer experiences. Youll work closely with product, operations, and engineering teams to translate business requirements into scalable Salesforce solutions. Key Responsibilities * Design, build, and deploy custom solutions usingLightning Web Components (LWC),Apex,SOQL/SOSL, andSalesforce APIs. * Configure Salesforce objects, flows, validation rules, process automation, and integrations. * Maintain and improve existing codebase, ensuring performance,
Job Specification: Mid-Level Salesforce Developer (FinTech) Location:Hybrid - Employment Type:Full-time - Level:Mid-Level - About the Role - We are seeking a skilledMid-Level Salesforce Developerto join my clients growing fintech engineering team. You will be responsible for developing, enhancing, and maintaining our Salesforce platform to support high-performance financial products, compliant workflows, and exceptional customer experiences. Youll work closely with product, operations, and engineering teams to translate business requirements into scalable Salesforce solutions. Key Responsibilities * Design, build, and deploy custom solutions usingLightning Web Components (LWC),Apex,SOQL/SOSL, andSalesforce APIs. * Configure Salesforce objects, flows, validation rules, process automation, and integrations. * Maintain and improve existing codebase, ensuring performance,
Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? This is your chance to join a research-driven, venture-backed security scale-up thats trusted by some of the worlds biggest enterprises and critical infrastructure providers. Recognised by Gartner, armed with funding, and scaling aggressively worldwide, theyre on a mission to reshape how organisations stay ahead of real-world cyber threats. As aSenior Backend Engineer, youll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assetshelping global security teams uncover exposures before attackers do. * Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platfor
Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? This is your chance to join a research-driven, venture-backed security scale-up thats trusted by some of the worlds biggest enterprises and critical infrastructure providers. Recognised by Gartner, armed with funding, and scaling aggressively worldwide, theyre on a mission to reshape how organisations stay ahead of real-world cyber threats. As aSenior Backend Engineer, youll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assetshelping global security teams uncover exposures before attackers do. * Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platfor
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Senior Full Stack Engineer (React, NextJS, Typescript, NestJS)
Senior Full Stack Engineer (React, NextJS, Typescript, NestJS)
XACT PLACEMENTS LIMITED
London
Unspecified
Senior Full Stack Engineer | Cybersecurity Scale-Up | Fully Remote (UK) Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join afast-growing, VC-backed cybersecurity innovator, recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide. Theyre building cutting-edge technology that helps organisations continuously understand how they could be compromised and theyre scaling fast. Now, theyre looking for aSenior Full Stack Engineerto join their team, where youll help shape the customer experience for some of the worlds largest enterprises. * Designing and developingenterprise-grade SaaS featuresacross backend and frontend systems * Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) * Creatingdata-driven dashboards and UIswith React, Next.js, and Cha
Senior Full Stack Engineer | Cybersecurity Scale-Up | Fully Remote (UK) Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join afast-growing, VC-backed cybersecurity innovator, recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide. Theyre building cutting-edge technology that helps organisations continuously understand how they could be compromised and theyre scaling fast. Now, theyre looking for aSenior Full Stack Engineerto join their team, where youll help shape the customer experience for some of the worlds largest enterprises. * Designing and developingenterprise-grade SaaS featuresacross backend and frontend systems * Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) * Creatingdata-driven dashboards and UIswith React, Next.js, and Cha
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At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
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Trading System Engineer Rates & Credit Fixed Income - Position Overview - Job Title Trading System Engineer - Rates and Credit Fixed Income - Location London - Corporate Title Assistant Vice President/Vice President - You will play a key role in the transformation of Rates and Credit Fixed Income technology landscape. As part of our multi-year platform modernisation project, you will be responsible for building a suite of new, real-time, high-performance applications supporting various trading workflows. You will be involved in building solutions across the stack and working closely with Business stakeholders to build a maintainable, operationally efficient and scalable platform to last the next decade. What well offer you - A healthy, engaged and well-supported workforce are better equipped to do their best work and, more importantly, enjoy their lives inside and out
Trading System Engineer Rates & Credit Fixed Income - Position Overview - Job Title Trading System Engineer - Rates and Credit Fixed Income - Location London - Corporate Title Assistant Vice President/Vice President - You will play a key role in the transformation of Rates and Credit Fixed Income technology landscape. As part of our multi-year platform modernisation project, you will be responsible for building a suite of new, real-time, high-performance applications supporting various trading workflows. You will be involved in building solutions across the stack and working closely with Business stakeholders to build a maintainable, operationally efficient and scalable platform to last the next decade. What well offer you - A healthy, engaged and well-supported workforce are better equipped to do their best work and, more importantly, enjoy their lives inside and out
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A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - As a Frontline Software Engineer at Palantir, you would begin your journey on a short-term assignment where you are embedded with customers. This unique experience lets you work directly with users, gaining firsthand insight into how our products are used and the challenges our customers face. Unlike traditional engineering roles, Frontline immerses you in complex, ambiguous problems, empowering you to deliver impactful solutions across some of the worlds most important industries and institutions.
A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - As a Frontline Software Engineer at Palantir, you would begin your journey on a short-term assignment where you are embedded with customers. This unique experience lets you work directly with users, gaining firsthand insight into how our products are used and the challenges our customers face. Unlike traditional engineering roles, Frontline immerses you in complex, ambiguous problems, empowering you to deliver impactful solutions across some of the worlds most important industries and institutions.
A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product.
A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product.
A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Palantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organisations securely integrate their data, so they can then build reliable, critical applications atop that unified foundation. Our customers use Foundry to perform rich analyses that drive core operations within their organisations. 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.
A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Palantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organisations securely integrate their data, so they can then build reliable, critical applications atop that unified foundation. Our customers use Foundry to perform rich analyses that drive core operations within their organisations. 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.
We are seeking an experienced Front-end Engineer to help build and evolve a web-based platform for reinforcement learning (RL) training and RLOps. You will design, implement, and optimise user-facing interfaces and front-end systems that support large-scale RL model development and deployment. Responsibilities * Develop scalable, reliable front-end architecture for an RL training and management platform * Translate requirements into high-quality user interfaces and workflows * Collaborate with designers and engineers to implement visual design within brand guidelines * Ensure cross-browser and cross-device compatibility, resolving UI/UX issues * Optimise performance, including load times and runtime efficiency * Ensure accessibility compliance (e.g., WCAG) * Identify and resolve user-facing bugs and usability issues
We are seeking an experienced Front-end Engineer to help build and evolve a web-based platform for reinforcement learning (RL) training and RLOps. You will design, implement, and optimise user-facing interfaces and front-end systems that support large-scale RL model development and deployment. Responsibilities * Develop scalable, reliable front-end architecture for an RL training and management platform * Translate requirements into high-quality user interfaces and workflows * Collaborate with designers and engineers to implement visual design within brand guidelines * Ensure cross-browser and cross-device compatibility, resolving UI/UX issues * Optimise performance, including load times and runtime efficiency * Ensure accessibility compliance (e.g., WCAG) * Identify and resolve user-facing bugs and usability issues
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Senior Machine Learning Engineer - Salary: £70,000-£90,000 - Location: London (Hybrid) The Opportunity - We're looking for a Senior Machine Learning Engineer to help design, build, and deliver next-generation AI systems. You will work across LLMs, retrieval-augmented generation (RAG), and modern agent frameworks to transform large, unstructured data into meaningful insights and production-ready capabilities. This is a hands-on role within a growing AI team, offering the chance to shape architecture, build scalable pipelines, and ship features that directly impact users. Responsibilities * Develop, integrate, and fine-tune LLMs for natural-language understanding, reasoning, and workflow automation. * Build agentic/LLM-driven workflows for multi-step decision making across diverse data sources. * Architect and deliver ML features such as pattern recognition, entity extr
Senior Machine Learning Engineer - Salary: £70,000-£90,000 - Location: London (Hybrid) The Opportunity - We're looking for a Senior Machine Learning Engineer to help design, build, and deliver next-generation AI systems. You will work across LLMs, retrieval-augmented generation (RAG), and modern agent frameworks to transform large, unstructured data into meaningful insights and production-ready capabilities. This is a hands-on role within a growing AI team, offering the chance to shape architecture, build scalable pipelines, and ship features that directly impact users. Responsibilities * Develop, integrate, and fine-tune LLMs for natural-language understanding, reasoning, and workflow automation. * Build agentic/LLM-driven workflows for multi-step decision making across diverse data sources. * Architect and deliver ML features such as pattern recognition, entity extr
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My Customer is looking for a talented Sharepoint Developer to join their growing team. You’ll play a key role in building, and maintaining PowerApps, ensuring seamless integration with SharePoint and other Microsoft 365 tools. You’ll also help define and implement versioning and governance policies to keep the Power Platform solutions organised, secure, and scalable. * Strong experience developing and deploying PowerApps (Canvas and/or Model-Driven). * Proven background working with SharePoint Online (data structure, permissions, and integration). * Experience connecting PowerApps to live data sources (Dataverse, SQL, SharePoint, or REST APIs). * Understanding of version control and governance best practices for Power Platform. * Familiarity with Microsoft Teams and OneDrive integration (desirable). * Excellent problem-solving skills and attention to detail.
My Customer is looking for a talented Sharepoint Developer to join their growing team. You’ll play a key role in building, and maintaining PowerApps, ensuring seamless integration with SharePoint and other Microsoft 365 tools. You’ll also help define and implement versioning and governance policies to keep the Power Platform solutions organised, secure, and scalable. * Strong experience developing and deploying PowerApps (Canvas and/or Model-Driven). * Proven background working with SharePoint Online (data structure, permissions, and integration). * Experience connecting PowerApps to live data sources (Dataverse, SQL, SharePoint, or REST APIs). * Understanding of version control and governance best practices for Power Platform. * Familiarity with Microsoft Teams and OneDrive integration (desirable). * Excellent problem-solving skills and attention to detail.
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SeniorAutomationQAAIStartup(UK)|BuildQAfromScratch - OurclientisanambitiousAIstartupbuildingcutting-edgeproducts,andwerelookingforaSeniorAutomationQAwhocanowntestautomationfromdayone. IfyoulovegreenfieldchallengesandwanttoshapetheentireQAfunctioninafast-growingtechcompany,thisisforyou. Whatyoulldo * BuildourautomationframeworksandQAprocessesfromscratch * Leadteststrategyacrossbackend,frontend&APIs * CreateautomatedtestsuitesintegratedintoCI/CD * CollaboratewithEngineering&MLteamstoensurehigh-qualityreleases * Championqualityacrosstheorganisation - Whatwerelookingfor * 5+yearsQAexperiencewithastrongautomationfocus * Provenexperiencesettinguptestautomationinastartuporgreenfieldenvironment * StrongskillswithPython/JavaScripttestframeworks * ExperiencewithPlaywright,Cypressorsimilar * Cloud&CI/CDexposure(AWS/GCP/Azure,GitHubActions,GitLabCI) * Bonus:experiencetestingAI/ML
SeniorAutomationQAAIStartup(UK)|BuildQAfromScratch - OurclientisanambitiousAIstartupbuildingcutting-edgeproducts,andwerelookingforaSeniorAutomationQAwhocanowntestautomationfromdayone. IfyoulovegreenfieldchallengesandwanttoshapetheentireQAfunctioninafast-growingtechcompany,thisisforyou. Whatyoulldo * BuildourautomationframeworksandQAprocessesfromscratch * Leadteststrategyacrossbackend,frontend&APIs * CreateautomatedtestsuitesintegratedintoCI/CD * CollaboratewithEngineering&MLteamstoensurehigh-qualityreleases * Championqualityacrosstheorganisation - Whatwerelookingfor * 5+yearsQAexperiencewithastrongautomationfocus * Provenexperiencesettinguptestautomationinastartuporgreenfieldenvironment * StrongskillswithPython/JavaScripttestframeworks * ExperiencewithPlaywright,Cypressorsimilar * Cloud&CI/CDexposure(AWS/GCP/Azure,GitHubActions,GitLabCI) * Bonus:experiencetestingAI/ML
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The successful applicant will have comprehensive expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable cloud solutions utilizing Azure App Service, Web API, and .NET Core. * Define architecture patterns for microservices, API management, and integration with enterprise systems. * Utilize Azure Functions, Azure Logic Apps, Azure API Management, and Azure Storage to develop robust applications. * Expertise in Microsoft Azure services, including App Service, Functions, API Management, Storage, and Networking. * Strong knowledge of .NET Core, Web API, C#, and Visual Studio.
The successful applicant will have comprehensive expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable cloud solutions utilizing Azure App Service, Web API, and .NET Core. * Define architecture patterns for microservices, API management, and integration with enterprise systems. * Utilize Azure Functions, Azure Logic Apps, Azure API Management, and Azure Storage to develop robust applications. * Expertise in Microsoft Azure services, including App Service, Functions, API Management, Storage, and Networking. * Strong knowledge of .NET Core, Web API, C#, and Visual Studio.
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Java Full Stack Developer
Java Full Stack Developer
Syntax Consultancy Limited
The City, City of London (EC2), EC2M
£65000 - £75000 (DOE) + Benefits + Bonus
JavaScript, NodeJS, ReactJS preferred and REST API, PostgreSQL / NoSQL databases, JSON and XML. * AWS Cloud environments including: ECS, EKS, API Gateway + Serverless. * Advantageous skills: Docker, JavaScript: ReactJS and NodeJS preferred, AWS API Gateway and Serverless technologies, Message broker like Apache KafkaBPM framework, Mustache template
JavaScript, NodeJS, ReactJS preferred and REST API, PostgreSQL / NoSQL databases, JSON and XML. * AWS Cloud environments including: ECS, EKS, API Gateway + Serverless. * Advantageous skills: Docker, JavaScript: ReactJS and NodeJS preferred, AWS API Gateway and Serverless technologies, Message broker like Apache KafkaBPM framework, Mustache template
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Senior Full Stack Engineer
Senior Full Stack Engineer
McGregor Boyall Associates Limited
City of London (EC1)
£80000 - £120000 per annum + bonus
Strong knowledge of system design principles, scalable architecture patterns, and API design.
Strong knowledge of system design principles, scalable architecture patterns, and API design.
Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
Machine Learning Engineer (Reinforcement Learning)
Machine Learning Engineer (Reinforcement Learning)
FBI &TMT
City of London, London
Up to £85000.00 per annum
Familiarity with model deployment and management, including API development, deployment pipelines, and performance optimisation.
Familiarity with model deployment and management, including API development, deployment pipelines, and performance optimisation.
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Infrastructure: AWS (Aurora, Redis, DynamoDB, S3, SNS, SQS, CloudFront, API Gateway)
Infrastructure: AWS (Aurora, Redis, DynamoDB, S3, SNS, SQS, CloudFront, API Gateway)
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You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
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Comfortable working with API-driven products or infrastructure and translating technical capability into customer value.
Comfortable working with API-driven products or infrastructure and translating technical capability into customer value.
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Understanding of secure architecture, API design, and performance optimisation.
Understanding of secure architecture, API design, and performance optimisation.
The ideal candidate will also have strong API integration skills and, preferably, experience with quoting and billing systems such as Zuora. * API Expertise: Design and implement integrations using REST and SOAP APIs. * Have a solid understanding of API integrations (REST/SOAP).
The ideal candidate will also have strong API integration skills and, preferably, experience with quoting and billing systems such as Zuora. * API Expertise: Design and implement integrations using REST and SOAP APIs. * Have a solid understanding of API integrations (REST/SOAP).
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API & events fluent: Youre comfortable with cloud infrastructure and event-driven designs.
API & events fluent: Youre comfortable with cloud infrastructure and event-driven designs.
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Python, API frameworks (Flask, FastAPI), package managers (poetry, uv)
Python, API frameworks (Flask, FastAPI), package managers (poetry, uv)