Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
There is no job matching your search
Api
Chelmsford
No need to fret! We’re adding new jobs every single day. Find out immediately when we’ve found a match for you.
0 API jobs in Chelmsford + 20 miles
7 exact matches jobs are outside your preferred location
)
Strong understanding of API testing, performance profiling, and security testing
Strong understanding of API testing, performance profiling, and security testing
)
Full Stack Developer
Full Stack Developer
CURE TALENT LIMITED
Milton, CB24
From £75,000 to £85,000 per annum Neg. DOE + Benefits
Strong understanding of API design, authentication, and database integration.
Strong understanding of API design, authentication, and database integration.
)
Lead Backend Developer - Location: London - 1x a month - Salary: Up to £120,000 (D.O.E) + benefits - Fruition Group are partnering with a high-growth Insurtech unicorn that's scaling its engineering function. This is a unique chance to work across both proven, revenue-generating products and greenfield initiatives that are reshaping the future of insurance. It's an ideal role for a driven Lead Engineer who thrives in ambitious environments and wants to make a tangible impact. As a Lead Backend Engineer, you'll take ownership of designing and scaling cloud-native backend systems. You'll work primarily with Python (FastAPI) and play a key role in shaping the architecture of microservices that support millions of users. Beyond hands-on development, you'll provide technical leadership, mentor team members, and influence strategic engineering decisions.
Lead Backend Developer - Location: London - 1x a month - Salary: Up to £120,000 (D.O.E) + benefits - Fruition Group are partnering with a high-growth Insurtech unicorn that's scaling its engineering function. This is a unique chance to work across both proven, revenue-generating products and greenfield initiatives that are reshaping the future of insurance. It's an ideal role for a driven Lead Engineer who thrives in ambitious environments and wants to make a tangible impact. As a Lead Backend Engineer, you'll take ownership of designing and scaling cloud-native backend systems. You'll work primarily with Python (FastAPI) and play a key role in shaping the architecture of microservices that support millions of users. Beyond hands-on development, you'll provide technical leadership, mentor team members, and influence strategic engineering decisions.
)
Experience with API testing and an understanding of API integration methods
Experience with API testing and an understanding of API integration methods
)
£50,000 to 60,000 GBP - Bonus - Hybrid WORKING - Location: Central London, Greater London - United Kingdom Type: Permanent - Location: London (Hybrid - 3 days in office: Tue/Wed/Thu) Salary: £50,000 to £60,000 + bonus and benefits - Type: Full-time, Permanent - Do you want to design and deliver solutions using the latest cloud services, AI, and emerging technologies to solve real-world challenges? This is a fantastic opportunity for an experienced engineer with a cloud-first mindset who thrives on creating innovative prototypes and scalable solutions. What you'll be doing * Designing and developing prototypes and Proof of Concepts using cloud services, AI, VR/AR, Edge AI, and more. * Supporting the delivery of group-wide digital initiatives, including in-house Generative AI solutions. * Collaborating with technical teams to promote best practices in modern software en
£50,000 to 60,000 GBP - Bonus - Hybrid WORKING - Location: Central London, Greater London - United Kingdom Type: Permanent - Location: London (Hybrid - 3 days in office: Tue/Wed/Thu) Salary: £50,000 to £60,000 + bonus and benefits - Type: Full-time, Permanent - Do you want to design and deliver solutions using the latest cloud services, AI, and emerging technologies to solve real-world challenges? This is a fantastic opportunity for an experienced engineer with a cloud-first mindset who thrives on creating innovative prototypes and scalable solutions. What you'll be doing * Designing and developing prototypes and Proof of Concepts using cloud services, AI, VR/AR, Edge AI, and more. * Supporting the delivery of group-wide digital initiatives, including in-house Generative AI solutions. * Collaborating with technical teams to promote best practices in modern software en
PREMIUM
)
Experience with Microsoft Azure services, particularly Azure OpenAI, Azure AD, and integration services (e.g., Logic Apps, API Management). * Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management.
Experience with Microsoft Azure services, particularly Azure OpenAI, Azure AD, and integration services (e.g., Logic Apps, API Management). * Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management.
FEATURED
£55000 - 60000 GBP - Onsite WORKING - Location: Central London, Greater London - United Kingdom Type: Permanent - Job Title: Solutions Engineer - Location: London (Hybrid - 3 days per week) Salary: £60,000 + bonus and perks - About Our Client - Our client is a global group of life-saving technology companies, united by a mission to create a safer, cleaner, and healthier future for everyone. Their portfolio spans over 40 companies worldwide, delivering innovative solutions that address critical challenges in health, safety, and the environment. With an ambitious digital transformation strategy underway, they are investing heavily in connected, smart, and data-driven technologies to modernise operations and accelerate innovation. This is an opportunity to join a forward-thinking organisation recognised as one of the UK's most admired companies, with over 7,000 employees
£55000 - 60000 GBP - Onsite WORKING - Location: Central London, Greater London - United Kingdom Type: Permanent - Job Title: Solutions Engineer - Location: London (Hybrid - 3 days per week) Salary: £60,000 + bonus and perks - About Our Client - Our client is a global group of life-saving technology companies, united by a mission to create a safer, cleaner, and healthier future for everyone. Their portfolio spans over 40 companies worldwide, delivering innovative solutions that address critical challenges in health, safety, and the environment. With an ambitious digital transformation strategy underway, they are investing heavily in connected, smart, and data-driven technologies to modernise operations and accelerate innovation. This is an opportunity to join a forward-thinking organisation recognised as one of the UK's most admired companies, with over 7,000 employees
PREMIUM
These jobs might also interest you
)
Software Engineer (Angular/Kotlin/Springboot) | 6 Month Contract (OIR35) | Hybrid - We're looking for a Full Stack Software Engineer to play a key role in developing and evolving a suite of high-performance applications. You'll be working across the entire technology stack, from dynamic, user-friendly web interfaces to robust, scalable backend microservices - helping to deliver impactful releases in an agile, four-week sprint cycle. Location: Coventry (2 days onsite) Contract: 6 Months (OIR35) Rate: £250-300 p/day - Start date: ASAP * Strong front-end development experience with Angular. * Proven backend expertise with Kotlin and Spring Boot v3. * Skilled in designing and maintaining microservices architectures. * Confident working with SQL databases (PostgreSQL, MySQL or equivalent). * Understanding of RESTful API design and third-pa
Software Engineer (Angular/Kotlin/Springboot) | 6 Month Contract (OIR35) | Hybrid - We're looking for a Full Stack Software Engineer to play a key role in developing and evolving a suite of high-performance applications. You'll be working across the entire technology stack, from dynamic, user-friendly web interfaces to robust, scalable backend microservices - helping to deliver impactful releases in an agile, four-week sprint cycle. Location: Coventry (2 days onsite) Contract: 6 Months (OIR35) Rate: £250-300 p/day - Start date: ASAP * Strong front-end development experience with Angular. * Proven backend expertise with Kotlin and Spring Boot v3. * Skilled in designing and maintaining microservices architectures. * Confident working with SQL databases (PostgreSQL, MySQL or equivalent). * Understanding of RESTful API design and third-pa
NEW
)
This is a fantastic opportunity for someone who loves solving complex security challenges, enjoys collaborating with brilliant minds across domains, and wants to make a meaningful impact in real-world products. * Discovering or analysing security vulnerabilities in products, ideally with public CVEs or equivalent internal findings. We're looking for an experienced and motivatedProduct Security Engineerto help shape the security posture of our SoC and embedded firmware solutions! In this role, youll evaluate system security architectures, dive into firmware code for review, contribute to ROM assessments, and perform hands-on threat modeling and lightweight testing. * Review firmware and SoC architecture for security risks and threat mo
This is a fantastic opportunity for someone who loves solving complex security challenges, enjoys collaborating with brilliant minds across domains, and wants to make a meaningful impact in real-world products. * Discovering or analysing security vulnerabilities in products, ideally with public CVEs or equivalent internal findings. We're looking for an experienced and motivatedProduct Security Engineerto help shape the security posture of our SoC and embedded firmware solutions! In this role, youll evaluate system security architectures, dive into firmware code for review, contribute to ROM assessments, and perform hands-on threat modeling and lightweight testing. * Review firmware and SoC architecture for security risks and threat mo
NEW
)
Espire Infolabs is hiring for Senior .Net Developer for London, UK location. Role : Dot Net Developer/Lead - Location: London, UK(3 Days/week onsite) Desired Industry Experience: 7+ years - Relevant Experience: .Net Core, Azure functions, Azure Functions, Microservice Architecture. Proven experience as a .NET Core Developer with expertise in Microsoft Azure. Proficiency in C# and .NET Core for server-side development. Excellent Coding skills and best practices - Strong experience of Azure services, including but not limited to Azure App Service, Azure Functions, Azure SQL Database, and Azure DevOps. Experience with containerization technologies (e.g., Docker) and orchestration (e.g., Kubernetes) is a plus. Familiarity with cloud security best practices and compliance requirements. Knowledge of database systems, MS SQL, and NoSQL databases. Experience with version cont
Espire Infolabs is hiring for Senior .Net Developer for London, UK location. Role : Dot Net Developer/Lead - Location: London, UK(3 Days/week onsite) Desired Industry Experience: 7+ years - Relevant Experience: .Net Core, Azure functions, Azure Functions, Microservice Architecture. Proven experience as a .NET Core Developer with expertise in Microsoft Azure. Proficiency in C# and .NET Core for server-side development. Excellent Coding skills and best practices - Strong experience of Azure services, including but not limited to Azure App Service, Azure Functions, Azure SQL Database, and Azure DevOps. Experience with containerization technologies (e.g., Docker) and orchestration (e.g., Kubernetes) is a plus. Familiarity with cloud security best practices and compliance requirements. Knowledge of database systems, MS SQL, and NoSQL databases. Experience with version cont
NEWFEATURED
This role is within the GPU Modelling Team, where we have a great opportunity for an experienced developer. Our models are written in C++ and implement in detail the micro-architecture of our GPU products. * Develop and maintain C++ models of GPU micro-architectures. * Take ownership of specific model components and features. * Debug and correlate model behavior against hardware. Knowledge of GPUs, computer graphics, or modelling platforms (e.g. SystemC) is a plus. Our engineers lead innovation in physical IP, AI and machine learning, cloud architecture, automotive tech, and every aspect of computing that matters. They are extensively used by teams within Arm for different use cases and are delivered to external partners. We are a distributed team, an
This role is within the GPU Modelling Team, where we have a great opportunity for an experienced developer. Our models are written in C++ and implement in detail the micro-architecture of our GPU products. * Develop and maintain C++ models of GPU micro-architectures. * Take ownership of specific model components and features. * Debug and correlate model behavior against hardware. Knowledge of GPUs, computer graphics, or modelling platforms (e.g. SystemC) is a plus. Our engineers lead innovation in physical IP, AI and machine learning, cloud architecture, automotive tech, and every aspect of computing that matters. They are extensively used by teams within Arm for different use cases and are delivered to external partners. We are a distributed team, an
)
Position: AI Engineer / AI Agent / Backend AI Engineer We're looking for an AI Engineer to design and deliver scalable AI/ML systems and agentic applications. * Work on cutting-edge AI innovation - Location: Remote - Work Type: Contract - You'll work on LLMs, RAG pipelines, model deployment, and cloud-native solutions that drive real-world impact. * Strong coding skills in Java / TypeScript /Python * Experience with LLMs, NLP, and ML frameworks (Hugging Face, PyTorch, TensorFlow, LangChain) * Cloud & DevOps expertise (AWS/Azure, Docker, Kubernetes, CI/CD pipelines) * Knowledge of microservices, APIs, distributed systems - Why join us? * Collaborative, cross-functional environment * Competitive salary + growth opportunities - We encour
Position: AI Engineer / AI Agent / Backend AI Engineer We're looking for an AI Engineer to design and deliver scalable AI/ML systems and agentic applications. * Work on cutting-edge AI innovation - Location: Remote - Work Type: Contract - You'll work on LLMs, RAG pipelines, model deployment, and cloud-native solutions that drive real-world impact. * Strong coding skills in Java / TypeScript /Python * Experience with LLMs, NLP, and ML frameworks (Hugging Face, PyTorch, TensorFlow, LangChain) * Cloud & DevOps expertise (AWS/Azure, Docker, Kubernetes, CI/CD pipelines) * Knowledge of microservices, APIs, distributed systems - Why join us? * Collaborative, cross-functional environment * Competitive salary + growth opportunities - We encour
NEWFEATURED
Role: Solution Engineer (Digital Solutions) Are you a seasoned backend engineer with a passion for solving real-world problems through modern technology? Join a high-impact digital solutions team that partners with a portfolio of safety, environmental, and healthcare-focused businesses to drive digital transformation. * Collaborating with technical teams across multiple businesses to design and develop scalable, secure digital solutions. * Understanding of solution architecture principles - scalability, security, maintainability. £55,000 - £65,000 GBP - 10% Bonus - Hybrid WORKING - Location: Central London, Greater London - United Kingdom Type: Permanent - Salary: £55,000-£65,000 + 10% Bonus - Location: London (Hybrid 2/3 day split) Do you enjoy working across diverse
Role: Solution Engineer (Digital Solutions) Are you a seasoned backend engineer with a passion for solving real-world problems through modern technology? Join a high-impact digital solutions team that partners with a portfolio of safety, environmental, and healthcare-focused businesses to drive digital transformation. * Collaborating with technical teams across multiple businesses to design and develop scalable, secure digital solutions. * Understanding of solution architecture principles - scalability, security, maintainability. £55,000 - £65,000 GBP - 10% Bonus - Hybrid WORKING - Location: Central London, Greater London - United Kingdom Type: Permanent - Salary: £55,000-£65,000 + 10% Bonus - Location: London (Hybrid 2/3 day split) Do you enjoy working across diverse
PREMIUM
)
NVIDIA is looking for a passionate, world-class computer scientist to work in its Compute Developer Technology (Devtech) team as an AI Developer Technology Engineer. AI travel agents will know your preferences and arrange every detail of your family vacation. Where engines made us stronger and powered the first industrial revolution, AI will make us smarter and power the next. * Work directly with key customers to understand the current and future problems they are solving and provide the best AI solutions using GPUs. * Strong knowledge of C/C++, software design, programming techniques, and AI algorithms. * Some travel is required for conferences and for on-site visits with developers. Come, join our AI Compute DevTec
NVIDIA is looking for a passionate, world-class computer scientist to work in its Compute Developer Technology (Devtech) team as an AI Developer Technology Engineer. AI travel agents will know your preferences and arrange every detail of your family vacation. Where engines made us stronger and powered the first industrial revolution, AI will make us smarter and power the next. * Work directly with key customers to understand the current and future problems they are solving and provide the best AI solutions using GPUs. * Strong knowledge of C/C++, software design, programming techniques, and AI algorithms. * Some travel is required for conferences and for on-site visits with developers. Come, join our AI Compute DevTec
NEW
)
As a PSA Engineer - Generation, you will be responsible for maintaining, optimising, and enhancing Energy Management Systems (EMS) to ensure reliable and efficient system performance. Edinburgh (Remote First) Salary Neg D.O.E - You'll play a key role in diagnosing and resolving technical issues, deploying updates, and supporting mission-critical generation control applications. Key Responsibilities * Administer and optimise the Energy Management System (EMS) through configuration, performance tuning, and security patching. * Execute technical corrective actions to restore failed or degraded EMS services. * Conduct code reviews, deployments, testing, and monitoring of break/fix patches and system modifications. * Strong experience in power system applications (Generation), including Automatic Generation Control (AGC), Load Frequency Control, Load Forec
As a PSA Engineer - Generation, you will be responsible for maintaining, optimising, and enhancing Energy Management Systems (EMS) to ensure reliable and efficient system performance. Edinburgh (Remote First) Salary Neg D.O.E - You'll play a key role in diagnosing and resolving technical issues, deploying updates, and supporting mission-critical generation control applications. Key Responsibilities * Administer and optimise the Energy Management System (EMS) through configuration, performance tuning, and security patching. * Execute technical corrective actions to restore failed or degraded EMS services. * Conduct code reviews, deployments, testing, and monitoring of break/fix patches and system modifications. * Strong experience in power system applications (Generation), including Automatic Generation Control (AGC), Load Frequency Control, Load Forec
FEATURED