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104 Permanent API jobs in Hertfordshire + 20 miles
289 exact matches jobs are outside your preferred location
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Contract Backend Developer - Python/Go - SC Cleared - Remote - 6 Months - Rate: Competitive (Outside IR35) Location: Remote/Hybrid (UK-based only) - 1-2 days per month in London - Clearance: Active SC Clearance required - Duration: 6 months (possible extension) A leading consultancy is seeking a Backend Developer with strong experience in Python and Go for a secure infrastructure automation project. * Python & Go backend development (APIs, microservices, automation tools) * AWS SDKs (boto3, aws-sdk-go-v2) - EC2, S3, IAM, Lambda, CloudWatch * LDAP, HashiCorp Vault, JIRA/Confluence, Kubernetes integration * CI/CD pipelines, Git, testing frameworks (pytest, unittest, testify, gomock) * Code quality tools: flake8, black, mypy, golangci-lint * Proven experience in backend development and cloud automation * Strong integration skills with enterprise tools and services
Contract Backend Developer - Python/Go - SC Cleared - Remote - 6 Months - Rate: Competitive (Outside IR35) Location: Remote/Hybrid (UK-based only) - 1-2 days per month in London - Clearance: Active SC Clearance required - Duration: 6 months (possible extension) A leading consultancy is seeking a Backend Developer with strong experience in Python and Go for a secure infrastructure automation project. * Python & Go backend development (APIs, microservices, automation tools) * AWS SDKs (boto3, aws-sdk-go-v2) - EC2, S3, IAM, Lambda, CloudWatch * LDAP, HashiCorp Vault, JIRA/Confluence, Kubernetes integration * CI/CD pipelines, Git, testing frameworks (pytest, unittest, testify, gomock) * Code quality tools: flake8, black, mypy, golangci-lint * Proven experience in backend development and cloud automation * Strong integration skills with enterprise tools and services
FEATURED
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Senior Backend Engineer - London - Hybrid (1x day a month) Salary: Up to £95k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, moni
Senior Backend Engineer - London - Hybrid (1x day a month) Salary: Up to £95k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, moni
London (Hybrid 1x Per week) Salary: Up to £100k + Benefits - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and foster a culture of engineering excellence.
London (Hybrid 1x Per week) Salary: Up to £100k + Benefits - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and foster a culture of engineering excellence.
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IT Business Analyst
IT Business Analyst
Octad Recruitment Consultants (Octad Ltd )
BR1, Bromley
From £40,000 to £60,000 per annum Good Benefits
This vibrant and expanding company are looking for a Business Analyst to work closely with the CEO in this exciting phase of their expansion. , The Company is an end-to-end digital solution organisation. They are looking for an experienced Business Analyst to join theirteam. In this role, youll be the bridge between business needs and technical solutions - gathering requirements, analyzing processes, and delivering actionable insights that help guide product development and business strategy. The development team are based overseas in South Africa and Thailand, with the CTO and a systems manager/UAT person being the only UK based part of the team. This role is key in that it will be a senior and key member of the development team which will include architecture and strategy decisions. Collaborate with stakeholders to gather and define business requirements
This vibrant and expanding company are looking for a Business Analyst to work closely with the CEO in this exciting phase of their expansion. , The Company is an end-to-end digital solution organisation. They are looking for an experienced Business Analyst to join theirteam. In this role, youll be the bridge between business needs and technical solutions - gathering requirements, analyzing processes, and delivering actionable insights that help guide product development and business strategy. The development team are based overseas in South Africa and Thailand, with the CTO and a systems manager/UAT person being the only UK based part of the team. This role is key in that it will be a senior and key member of the development team which will include architecture and strategy decisions. Collaborate with stakeholders to gather and define business requirements
Senior Backend Engineer - London - Hybrid (1x day a week) Salary: Up to £80k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, monit
Senior Backend Engineer - London - Hybrid (1x day a week) Salary: Up to £80k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, monit
London (Hybrid 1x Per week) Salary: Up to £100k + Benefits - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and foster a culture of engineering excellence.
London (Hybrid 1x Per week) Salary: Up to £100k + Benefits - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and foster a culture of engineering excellence.
Just Recruitment is working with a growing, well established and market leading organisation, who are looking to recruit a highly motivated developer to join their team to work across a variety of digital products and website projects. The successful applicant will be involved in the development of new client projects and will - also work on the maintenance and development of existing projects. You must have the ability to accurately code design layouts. As a full-stack developer, you will be expected to develop bespoke WordPress themes (not a theme modification) Knowledge in creating WordPress based websites. Exposure to server-side JavaScript, APIs - Proficiency in modern JavaScript features (ES6+) Strong Experience in HTML and CSS. Have experience working in an agency environment - Experience with Version Control systems (Git)
Just Recruitment is working with a growing, well established and market leading organisation, who are looking to recruit a highly motivated developer to join their team to work across a variety of digital products and website projects. The successful applicant will be involved in the development of new client projects and will - also work on the maintenance and development of existing projects. You must have the ability to accurately code design layouts. As a full-stack developer, you will be expected to develop bespoke WordPress themes (not a theme modification) Knowledge in creating WordPress based websites. Exposure to server-side JavaScript, APIs - Proficiency in modern JavaScript features (ES6+) Strong Experience in HTML and CSS. Have experience working in an agency environment - Experience with Version Control systems (Git)
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.Net Developer - Hybrid Remote
.Net Developer - Hybrid Remote
VERTECH GROUP (UK) LTD
KT14, West Byfleet
From £55,000 to £65,000 per annum + Benefits
.Net Developer Location: Flexible Hybrid Home / Byfleet Salary: Circa 55k 65k + Benefits .Net Developer required by fast-growing, technology-led company! This is a diverse, challenging role in a talented team where youll be responsible for developing a variety of complex projects * At least 3yrs development experience * Skills in C#, VB.Net * ASP.Net, Blazor, WPF * RESTful APIs Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to keep up to date with emerging technologies and enjoy a healthy work/life balance! Apply now for FULL details!
.Net Developer Location: Flexible Hybrid Home / Byfleet Salary: Circa 55k 65k + Benefits .Net Developer required by fast-growing, technology-led company! This is a diverse, challenging role in a talented team where youll be responsible for developing a variety of complex projects * At least 3yrs development experience * Skills in C#, VB.Net * ASP.Net, Blazor, WPF * RESTful APIs Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to keep up to date with emerging technologies and enjoy a healthy work/life balance! Apply now for FULL details!
FEATURED
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Business Analyst
Business Analyst
Anson Mccade
NN1, Northampton, NN1 2EW
GBP 48,000.00 - 58,000.00 per year;GBP 58,000.00 per year
£48,000 - 58,000 GBP - Hybrid WORKING - Location: Northampton, East Midlands - United Kingdom Type: Permanent - Role: Business Analyst - Salary: Up to £58,000 - Additional Package: 20% Bonus, Extensive Benefits Package - Location: Northampton (Hybrid) Are you a Business Analyst who thrives on solving complex challenges through technology? This is your chance to join a collaborative team working on high-impact programmes that drive real transformation. You'll be part of an agile, forward-thinking environment where your insights help shape solutions that align with strategic goals and business needs. This opportunity suits a Business Analyst who's confident navigating complex organisations, enjoys working with both technical and non-technical teams, and wants to influence key business decisions. If you're detail-oriented, solution-driven, and value stakeholder collabora
£48,000 - 58,000 GBP - Hybrid WORKING - Location: Northampton, East Midlands - United Kingdom Type: Permanent - Role: Business Analyst - Salary: Up to £58,000 - Additional Package: 20% Bonus, Extensive Benefits Package - Location: Northampton (Hybrid) Are you a Business Analyst who thrives on solving complex challenges through technology? This is your chance to join a collaborative team working on high-impact programmes that drive real transformation. You'll be part of an agile, forward-thinking environment where your insights help shape solutions that align with strategic goals and business needs. This opportunity suits a Business Analyst who's confident navigating complex organisations, enjoys working with both technical and non-technical teams, and wants to influence key business decisions. If you're detail-oriented, solution-driven, and value stakeholder collabora
PREMIUM
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The Company - A well-established and specialist commercial insurer operating across domestic and international markets. The organisation offers a comprehensive portfolio of innovative risk solutions and services to businesses of all sizes, with a strong emphasis on data-driven decision-making and digital transformation. The Role - This position will lead the development and delivery of enterprise-wide data solutions. The role combines technical leadership, stakeholder engagement, and hands-on execution to support business growth and operational excellence through advanced analytics and data strategy. Key Responsibilities * Develop and lead the execution of data and analytics strategies aligned to wider business objectives. * Design and deploy advanced analytical models and dashboards to extract insights, forecast trends, and inform strategic decision-making.
The Company - A well-established and specialist commercial insurer operating across domestic and international markets. The organisation offers a comprehensive portfolio of innovative risk solutions and services to businesses of all sizes, with a strong emphasis on data-driven decision-making and digital transformation. The Role - This position will lead the development and delivery of enterprise-wide data solutions. The role combines technical leadership, stakeholder engagement, and hands-on execution to support business growth and operational excellence through advanced analytics and data strategy. Key Responsibilities * Develop and lead the execution of data and analytics strategies aligned to wider business objectives. * Design and deploy advanced analytical models and dashboards to extract insights, forecast trends, and inform strategic decision-making.
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Job Title: Business Intelligence (BI) Analyst - Location: Cambridge (2 days on-site) Salary: £35,000 - £50,000 DOE + Bonus - About Us - We're a fast-growing data consultancy helping forward-thinking clients transform their customer engagement through intelligent use of CRM platforms and AI. We specialise in building integrated data ecosystems that drive smarter business decisions, better customer insights, and measurable ROI. Our clients range from scaling SaaS startups to global enterprises across sectors like retail, finance, technology, and healthcare. We work at the intersection of data, automation, and customer intelligence. As we scale, we're looking for a talented BI Analyst to join our analytics team and help our clients extract true business value from their data. The Role - As a BI Analyst, you will play a critical role in helping our clients understand and
Job Title: Business Intelligence (BI) Analyst - Location: Cambridge (2 days on-site) Salary: £35,000 - £50,000 DOE + Bonus - About Us - We're a fast-growing data consultancy helping forward-thinking clients transform their customer engagement through intelligent use of CRM platforms and AI. We specialise in building integrated data ecosystems that drive smarter business decisions, better customer insights, and measurable ROI. Our clients range from scaling SaaS startups to global enterprises across sectors like retail, finance, technology, and healthcare. We work at the intersection of data, automation, and customer intelligence. As we scale, we're looking for a talented BI Analyst to join our analytics team and help our clients extract true business value from their data. The Role - As a BI Analyst, you will play a critical role in helping our clients understand and
FEATURED
Job Title: Business Intelligence (BI) Analyst - Location: Oxford (2 days on-site) Salary: £35,000 - £50,000 DOE + Bonus - About Us - We're a fast-growing data consultancy helping forward-thinking clients transform their customer engagement through intelligent use of CRM platforms and AI. We specialise in building integrated data ecosystems that drive smarter business decisions, better customer insights, and measurable ROI. Our clients range from scaling SaaS startups to global enterprises across sectors like retail, finance, technology, and healthcare. We work at the intersection of data, automation, and customer intelligence. As we scale, we're looking for a talented BI Analyst to join our analytics team and help our clients extract true business value from their data. The Role - As a BI Analyst, you will play a critical role in helping our clients understand and opt
Job Title: Business Intelligence (BI) Analyst - Location: Oxford (2 days on-site) Salary: £35,000 - £50,000 DOE + Bonus - About Us - We're a fast-growing data consultancy helping forward-thinking clients transform their customer engagement through intelligent use of CRM platforms and AI. We specialise in building integrated data ecosystems that drive smarter business decisions, better customer insights, and measurable ROI. Our clients range from scaling SaaS startups to global enterprises across sectors like retail, finance, technology, and healthcare. We work at the intersection of data, automation, and customer intelligence. As we scale, we're looking for a talented BI Analyst to join our analytics team and help our clients extract true business value from their data. The Role - As a BI Analyst, you will play a critical role in helping our clients understand and opt
FEATURED
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Central London - Hybrid (two days per week in the office) Salary Up to £80,000 + Bonus - Method Resourcing is thrilled to be partnering with a global leader in the travel services and benefits sector. They're looking for a Senior HRIS Technical Analyst to join the Global Business Systems division. In this hands-on technical role, you'll serve as a trusted expert on HR systems and a critical support partner to the HR team, with a focus on Workday and its integrations. Your work will ensure smooth system operations, enable greater automation, and play a pivotal role in advancing our HR technology landscape. * Act as the technical subject matter expert for Workday and HR systems * Maintain and enhance system integrations using EIB, Workday Studio, Web Services (REST, SOAP), and related APIs * Provide 2nd and 3rd line support, translating business needs into technical sol
Central London - Hybrid (two days per week in the office) Salary Up to £80,000 + Bonus - Method Resourcing is thrilled to be partnering with a global leader in the travel services and benefits sector. They're looking for a Senior HRIS Technical Analyst to join the Global Business Systems division. In this hands-on technical role, you'll serve as a trusted expert on HR systems and a critical support partner to the HR team, with a focus on Workday and its integrations. Your work will ensure smooth system operations, enable greater automation, and play a pivotal role in advancing our HR technology landscape. * Act as the technical subject matter expert for Workday and HR systems * Maintain and enhance system integrations using EIB, Workday Studio, Web Services (REST, SOAP), and related APIs * Provide 2nd and 3rd line support, translating business needs into technical sol
FEATURED
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Exposure to Swift Vapor for server-side API development (desirable, not essential).
Exposure to Swift Vapor for server-side API development (desirable, not essential).
We're looking for a skilledFull-Stack Developerwho thrives at the intersection of geospatial data, modern web technologies, and backend API development. Backend:Node.js, Python, .NET (or equivalent) API development * Proven experience infront-end mapping librariesandbackend API development
We're looking for a skilledFull-Stack Developerwho thrives at the intersection of geospatial data, modern web technologies, and backend API development. Backend:Node.js, Python, .NET (or equivalent) API development * Proven experience infront-end mapping librariesandbackend API development
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.Net Developer
.Net Developer
Crowd Link Consulting Ltd
GU21, Woking
From £45,000 to £60,000 per annum Salary + Benefits + Bonus
Web API, HTML, CSS, Web Services, JQuery and JavaScript
Web API, HTML, CSS, Web Services, JQuery and JavaScript
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Solid understanding of API development, event-driven architecture, and asynchronous programming
Solid understanding of API development, event-driven architecture, and asynchronous programming
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Skills C#, .NET .NETCore, C#, ASP .NET, Typescript, JavaScript, MVC, SQL Server, AGILE, Angular, React, Software Developer, Software engineer, Graduate Developer, Web applications, API, CMS, Umbraco, Sitefinity
Skills C#, .NET .NETCore, C#, ASP .NET, Typescript, JavaScript, MVC, SQL Server, AGILE, Angular, React, Software Developer, Software engineer, Graduate Developer, Web applications, API, CMS, Umbraco, Sitefinity
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Experience with API-first design and integration of RegTech tools.
Experience with API-first design and integration of RegTech tools.
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3+ years hands-on experience in developing REST services using Web API
3+ years hands-on experience in developing REST services using Web API
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API-savvy, with a side of .NET, JavaScript, and Git-fu
API-savvy, with a side of .NET, JavaScript, and Git-fu
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Enterprise Architect
Enterprise Architect
Cambridge University Press & Assessment
Cambridge, Cambridgeshire
From £70,400 to £94,100 per annum
Familiarity with enterprise integration patterns, API management, and microservices.
Familiarity with enterprise integration patterns, API management, and microservices.
NEWFEATURED
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The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
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Full Stack Developer
Full Stack Developer
Rise Technical Recruitment Limited
London
£60000.00 - £70000.00 per annum + + Equity
The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
PREMIUM
Full Stack Developer
Full Stack Developer
Rise Technical Recruitment Limited
London
£60000.00 - £70000.00 per annum + + Equity
The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
PREMIUM