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412 Permanent API jobs in South East + 20 miles
The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
Proven track record building and scaling data platforms and API-first products, with the ability to drive innovation and adoption.
Proven track record building and scaling data platforms and API-first products, with the ability to drive innovation and adoption.
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Experience of working with REST API
Experience of working with REST API
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The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
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Design and manage secure networking and service meshes (TLS, Istio, Linkerd, API gateways) to ensure encrypted and reliable service-to-service communication. * Experience designing and managing secure networking and service mesh (TLS, Istio, Linkerd, API gateways).
Design and manage secure networking and service meshes (TLS, Istio, Linkerd, API gateways) to ensure encrypted and reliable service-to-service communication. * Experience designing and managing secure networking and service mesh (TLS, Istio, Linkerd, API gateways).
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Experience consuming RESTful API services * Experience writing RESTful API services, either in Javascript or TypeScript
Experience consuming RESTful API services * Experience writing RESTful API services, either in Javascript or TypeScript
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
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Knowledge of database testing and API testing methodologies.
Knowledge of database testing and API testing methodologies.
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APIs: Implement API security best practices (rate limiting, authentication, input validation)
APIs: Implement API security best practices (rate limiting, authentication, input validation)
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Review daily dashboard reports and internal API fail-out reports to prioritize tasks and stay ahead of the game.
Review daily dashboard reports and internal API fail-out reports to prioritize tasks and stay ahead of the game.
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Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
58 exact matches jobs are outside your preferred location
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Experience with Akamai Edge solutions for OT/cloud API protection.
Experience with Akamai Edge solutions for OT/cloud API protection.
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Skilled in cloud technologies (Azure, GCP, or AWS), microservices, and API strategy
Skilled in cloud technologies (Azure, GCP, or AWS), microservices, and API strategy
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You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
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Role/Job Title: Software Engineer C++, C# .Net - Work Location: Edinburgh - Role type Permanent/Fixed Term/Contracting: Contracting - Mode of working Hybrid/Office based: Office Based - The Role - We are seeking an experienced and hands-on Software Engineer with skills in developing applications on C++, C# .Net and with a Utilities background. Your Responsibilities * Development of applications using C++, C# .Net for power utilities products - Your Profile * In-depth knowledge of C# .NET languages * Design, develop, and manage high-performance software applications using C# * Implement and optimize code for performance, security, and memory efficiency * Test and debug various .NET applications * Monitor and optimize the performance and responsiveness of .NET applications across multiple platforms and environments * Integrate third-party libraries, tools, and APIs into
Role/Job Title: Software Engineer C++, C# .Net - Work Location: Edinburgh - Role type Permanent/Fixed Term/Contracting: Contracting - Mode of working Hybrid/Office based: Office Based - The Role - We are seeking an experienced and hands-on Software Engineer with skills in developing applications on C++, C# .Net and with a Utilities background. Your Responsibilities * Development of applications using C++, C# .Net for power utilities products - Your Profile * In-depth knowledge of C# .NET languages * Design, develop, and manage high-performance software applications using C# * Implement and optimize code for performance, security, and memory efficiency * Test and debug various .NET applications * Monitor and optimize the performance and responsiveness of .NET applications across multiple platforms and environments * Integrate third-party libraries, tools, and APIs into
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Contract Role: Prompt Engineer (Salesforce & Generative AI Integration) Duration: 4–5 months (November – March) Day Rate: £600–£700 (Inside IR35) Location: Fully Remote (UK-based candidates only) Overview - We are seeking a highly skilled Prompt Engineer with deep expertise in the Salesforce platform and hands-on experience in Generative AI integration. This role bridges the gap between business requirements and intelligent automation, crafting high-impact prompts and embedding AI capabilities into Salesforce workflows to enhance customer experience and operational efficiency. Key Responsibilities - Salesforce Platform Expertise * Design and configure Salesforce objects, data models, and automation using Flows, Apex, and Lightning Web Components (LWC). * Leverage Service Cloud and Sales Cloud functionality to support AI-driven use cases.
Contract Role: Prompt Engineer (Salesforce & Generative AI Integration) Duration: 4–5 months (November – March) Day Rate: £600–£700 (Inside IR35) Location: Fully Remote (UK-based candidates only) Overview - We are seeking a highly skilled Prompt Engineer with deep expertise in the Salesforce platform and hands-on experience in Generative AI integration. This role bridges the gap between business requirements and intelligent automation, crafting high-impact prompts and embedding AI capabilities into Salesforce workflows to enhance customer experience and operational efficiency. Key Responsibilities - Salesforce Platform Expertise * Design and configure Salesforce objects, data models, and automation using Flows, Apex, and Lightning Web Components (LWC). * Leverage Service Cloud and Sales Cloud functionality to support AI-driven use cases.
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Your new company - One of the largest Government Organisations responsible for Trade and Investment - Your new role - What you'll need to succeed - Are you looking to join as a key member of the Microsoft team? Are you looking to utilise Microsoft Office products, specifically Microsoft Dynamics, to deliver solutions in rapid and agile ways that will reduce burdens on staff, maximise the use of data and support decision-making? You will develop your own solutions and be expected to be innovative, but ensure compliance with the appropriate requirements for data protection and information security. As part of this role, you'll actively promote the use of M365 applications, helping the department make the most of the M365 applications that are available. * Develop and configure new and existing services using Power Platform, Plug-Ins, and Dynamics 365
Your new company - One of the largest Government Organisations responsible for Trade and Investment - Your new role - What you'll need to succeed - Are you looking to join as a key member of the Microsoft team? Are you looking to utilise Microsoft Office products, specifically Microsoft Dynamics, to deliver solutions in rapid and agile ways that will reduce burdens on staff, maximise the use of data and support decision-making? You will develop your own solutions and be expected to be innovative, but ensure compliance with the appropriate requirements for data protection and information security. As part of this role, you'll actively promote the use of M365 applications, helping the department make the most of the M365 applications that are available. * Develop and configure new and existing services using Power Platform, Plug-Ins, and Dynamics 365
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UK Remote (Occasional travel to Glasgow or Reading) * Up to £100,000 per annum (Including car allowance + bonus) * Permanent * SC Clearance Required - Are you an accomplished Dynamics 365 Architect with a passion for designing impactful, enterprise-grade solutions? We are seeking a forward-thinking professional to join a high-performing Microsoft practice, where you will play a pivotal role in the technical design and delivery of secure, scalable Dynamics 365 and Power Platform solutions. This is a remote role based in the UK, with occasional travel required to client sites or team hubs in Glasgow or Reading. Please note that eligibility for SC Clearance is essential. * Salary up to £100,000 with Car allowance and performance-based bonus included * Flexible remote working with occasional hybrid travel * Competitive pension contributions and a comprehensive benefits pa
UK Remote (Occasional travel to Glasgow or Reading) * Up to £100,000 per annum (Including car allowance + bonus) * Permanent * SC Clearance Required - Are you an accomplished Dynamics 365 Architect with a passion for designing impactful, enterprise-grade solutions? We are seeking a forward-thinking professional to join a high-performing Microsoft practice, where you will play a pivotal role in the technical design and delivery of secure, scalable Dynamics 365 and Power Platform solutions. This is a remote role based in the UK, with occasional travel required to client sites or team hubs in Glasgow or Reading. Please note that eligibility for SC Clearance is essential. * Salary up to £100,000 with Car allowance and performance-based bonus included * Flexible remote working with occasional hybrid travel * Competitive pension contributions and a comprehensive benefits pa
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Cybersecurity Incident Response Specialist - CONTRACT OPPORTUNITY * Remote with occasional trips to London (not expensed). * £750.00 per day. * 6 months. * ASAP start, ASAP interviews. * Right to work in the UK mandatory. The Cybersecurity Incident Response Specialist will be responsible for investigating, analysing and providing specialist expertise for the resolution of security incidents / attacks aimed at the client. Support the long-term strategic goals of Cyber Operations pillar support Senior Analysts and Analysts in managing incidents and liaise with SOC engineers to ensure appropriate security measures, technologies and processes are in place to avoid reoccurrence of incidents. * Demonstrate an ability to understand in detail how an incident has occurred without relying on alerts (e.g., reviewing logs and threat intelligence data).
Cybersecurity Incident Response Specialist - CONTRACT OPPORTUNITY * Remote with occasional trips to London (not expensed). * £750.00 per day. * 6 months. * ASAP start, ASAP interviews. * Right to work in the UK mandatory. The Cybersecurity Incident Response Specialist will be responsible for investigating, analysing and providing specialist expertise for the resolution of security incidents / attacks aimed at the client. Support the long-term strategic goals of Cyber Operations pillar support Senior Analysts and Analysts in managing incidents and liaise with SOC engineers to ensure appropriate security measures, technologies and processes are in place to avoid reoccurrence of incidents. * Demonstrate an ability to understand in detail how an incident has occurred without relying on alerts (e.g., reviewing logs and threat intelligence data).
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Test Automation Manager - Permanent - Location: UK - Remote - Salary: Dependant on experience (+ Employee Benefits) Skills: Team Management, ETRM (ie. Openlink Endur) Energy / Financial Trading experience, QA Team management, BDD, CI/CD, Python, Java etc. We're recruiting a talented Test Automation Manager for a leading software company that develops advanced solutions for trading and risk management across global financial and energy markets. This is a fantastic opportunity for an experienced Test Automation Manager with proven team management experience to take ownership of automation practices and guide small, skilled teams. You'll play a key role in driving an automation-first culture, ensuring quality and scalability across complex, high-volume systems. This is a UK based fully remote role. What you'll bring
Test Automation Manager - Permanent - Location: UK - Remote - Salary: Dependant on experience (+ Employee Benefits) Skills: Team Management, ETRM (ie. Openlink Endur) Energy / Financial Trading experience, QA Team management, BDD, CI/CD, Python, Java etc. We're recruiting a talented Test Automation Manager for a leading software company that develops advanced solutions for trading and risk management across global financial and energy markets. This is a fantastic opportunity for an experienced Test Automation Manager with proven team management experience to take ownership of automation practices and guide small, skilled teams. You'll play a key role in driving an automation-first culture, ensuring quality and scalability across complex, high-volume systems. This is a UK based fully remote role. What you'll bring
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£80,000 - £90,000 | Fully Remote | Full-time - Are you an experienced software engineer with a passion for front-end development and a proven track record in React? We're looking for a Lead Software Engineer to guide a small but talented team while continuing to deliver impactful features yourself. This role blends technical leadership with hands-on coding, giving you the opportunity to shape the direction of a modern SaaS platform while staying close to the craft. What You'll Do * Take the lead on front-end development, driving high-quality user experiences using React and TypeScript. * Contribute directly to the product codebase, designing and delivering scalable, performant features. * Review code for consistency, maintainability, and best practices. * Collaborate with Product Managers to translate requirements into clear development tasks.
£80,000 - £90,000 | Fully Remote | Full-time - Are you an experienced software engineer with a passion for front-end development and a proven track record in React? We're looking for a Lead Software Engineer to guide a small but talented team while continuing to deliver impactful features yourself. This role blends technical leadership with hands-on coding, giving you the opportunity to shape the direction of a modern SaaS platform while staying close to the craft. What You'll Do * Take the lead on front-end development, driving high-quality user experiences using React and TypeScript. * Contribute directly to the product codebase, designing and delivering scalable, performant features. * Review code for consistency, maintainability, and best practices. * Collaborate with Product Managers to translate requirements into clear development tasks.
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UKIC Cleared Senior Front-end JavaScript Developer
UKIC Cleared Senior Front-end JavaScript Developer
Damia Group Ltd
UK
£40000 - £80000 per annum + and bonus
Familiarity with microservices architecture and API development (REST, GraphQL).
Familiarity with microservices architecture and API development (REST, GraphQL).
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Develop iOS applications (Swift or Objective-C) with RESTful API integrations.
Develop iOS applications (Swift or Objective-C) with RESTful API integrations.
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Technical Lead
Technical Lead
Zorba Consulting
UK
From £60,000 to £70,000 per annum 28 days hols, health insurance, soci
Join a fast-growing HR software company as a Technical Lead for their Integration team with Client Facing experience, leading/mentoring technical teams and API development & integrations experience (C#, .NET, SQL Server). * 4+ years experience in API development and integrations (REST, SOAP, GraphQL) * Expertise in AWS services (Lambda, API Gateway, S3, DynamoDB, SQS, SNS)
Join a fast-growing HR software company as a Technical Lead for their Integration team with Client Facing experience, leading/mentoring technical teams and API development & integrations experience (C#, .NET, SQL Server). * 4+ years experience in API development and integrations (REST, SOAP, GraphQL) * Expertise in AWS services (Lambda, API Gateway, S3, DynamoDB, SQS, SNS)
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Related Jobs
Locations
- London
- Surrey
- Canary Wharf
- City of London
- Slough
- South East London
- Croydon
- Isleworth
- Reigate
- Central London
- Birmingham
- Scotland
- Plymouth
- Dundee
- Hampshire
- East Anglia
- Eastleigh
- Southampton
- Livingston
- Reading
- Kent
- Midlands
- West Sussex
- Manchester
- Yorkshire
- Wales
- East Midlands
- Derby
- Portsmouth
- Chester
- Guildford
- Windermere
- Bristol
- Leicester
- Sheffield
- Leeds
- Colchester
- Milton Keynes
- Cambridgeshire
- Midlothian
- Nottinghamshire
- Nottingham
- Glasgow
- Cochrane Park
- Lancashire
- Wolverhampton
- Cambridge
- Basingstoke
- Gloucester
- Bath