15 of 15 Permanent RESTful Jobs in Hertfordshire

Senior Backend Developer - Fintech & Payment Orchestration(High-Risk Payments, iGaming & Fintech)

Hiring Organisation
Payomatix Technologies
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
high-volume and high-risk transactions globally. Key Responsibilities Architecture & Development Design scalable microservices architecture for payment routing and orchestration. Develop and maintain secure RESTful APIs for PSP and bank integrations. Implement high-availability systems for transaction processing. Optimize real-time transaction routing logic for maximum approval rates. Payment Integrations ...

Software Engineer (Applied AI)

Hiring Organisation
Euphoric
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
understanding of both scale and quality from larger tech organisations. Hands-On Full Stack Skills: Proficiency in React/Typescript and/or Python (RESTful APIs, data pipelines), plus comfort with deploying and maintaining services on modern cloud platforms (GCP preferred, AWS or Azure also fine). Applied AI/ ...

Senior Software Engineer

Hiring Organisation
Ryft
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
control Familiarity with NoSQL databases AWS experience Experience with CI/CD tools (e.g., Github) Nice to Have Experience with microservices architecture Familiarity with RESTful APIs Exposure to Docker or Kubernetes Experience with React or Native App development If you're excited about working in a fast-paced, collaborative environment ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
applications. This is purely a tech-heavy role—business knowledge is helpful but not required. What You'll Be Doing: Design, develop, and maintain RESTful APIs using .NET technologies (C#, ASP.NET Core). Redesigning and refactoring high-activity tables to improve performance and maintainability Developing frameworks and tooling for real ...

Senior Python Developer (CFML Migration)

Hiring Organisation
EXTREVO
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
enhancing backend systems in Python Supporting and maintaining the existing CFML codebase Contributing to the architecture and implementation of the migration Building and maintaining RESTful APIs Working closely with the CTO and distributed UK team Following modern development practices (Git, CI/CD, structured workflows) As a Senior Python Developer ...

Martech Solution Architect

Hiring Organisation
Akkodis
Location
Stevenage, England, United Kingdom
needs Required Skills and Experience: Strong experience with AEM and Adobe Campaign Proficiency in Java, JavaScript, React, HTML, CSS, and working with AEM components RESTful API development and experience integrating MarTech stack components (such as Sprinklr, Papirfly and Piwik Pro) Understanding of Cloudflare, CDN performance tuning and web security best ...

Senior Fullstack Engineer

Hiring Organisation
TRAKD
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
JavaScript, TypeScript, component-based frameworks). Solid testing discipline across unit, integration, and end-to-end testing. Experience designing and building backend services using RESTful APIs. Proven ability to simplify systems and influence technical direction across teams. Good understanding of CI/CD and modern delivery practices. Comfort working closely ...

Senior Software Engineer

Hiring Organisation
hackajob
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
Django or Ruby (with willingness to learn the other) Advanced experience in Java or Rust (with willingness to learn the other) Familiarity with Python RESTful API and GraphQL development Database design and optimization (Postgres, MySQL, Redis) Experience leveraging AI tools to accelerate development is a plus Soft Skills: Proven ability ...

Application Development Officer

Hiring Organisation
East Herts Council
Location
Hertford, Hertfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
appropriate - Developing integrations including Extract, Load, Transform (ELT/data conversion) between various inhouse and 3rd party systems, using a number of techniques, e.g. RESTful, SOAP, XML, JSON, CSV, and SQL Databases - Acting as a general-purpose database administrator (DBA) to ensure that database systems are secure, patched, maintained, tuned ...

React Developer

Hiring Organisation
Akkodis
Location
Stevenage, England, United Kingdom
Develop scalable and reusable React.js components using TypeScript. Translate UX/UI designs into responsive and accessible web interfaces. Integrate front-end applications with RESTful and GraphQL APIs. Implement secure authentication, session management, and data handling. Optimise applications for performance, accessibility, and cross-browser compatibility. Maintain consistent styling using frameworks … emerging front-end technologies and best practices. Required Experience 3+ years’ experience building front-end applications using React.js and TypeScript. Proven experience integrating with RESTful APIs and managing asynchronous data. Background in front-end delivery for cloud-hosted or enterprise-scale applications. Working within Agile delivery environments. Deploying applications through ...

.NET Developer

Hiring Organisation
Noir
Location
Bishop's Stortford, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £65,000 per annum
10.0 - Social Networking Site - Bishop's Stortford (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is the world's largest social-networking web site and they have ambitions … training per year and exposure to cutting edge technologies such as: .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Azure, Bootstrap, Agile and MongoDB. Additionally you will follow an official structured career progression program. Location: Bishop's Stortford, Hertfordshire, UK/ ...

.NET Developer – St Albans

Hiring Organisation
Noir
Location
St Albans, England, United Kingdom
Growing Social Media Firm – St Albans, Hertfordshire (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is on a quest to transform how people discover, view and share content … development principles. Our client can provide you with industry recognized training in: .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Bootstrap and MongoDB. Our client has a flat organization, which means that they believe great ideas can come from anywhere and anyone. From ...

.NET Developer

Hiring Organisation
Noir
Location
Hatfield, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £65,000 per annum
10.0, C# 14 - Digital Download Site - Hatfield (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer)With operations in over 20 countries our client has fast become a major player within … Azure SQL. You will be trained in all aspects of: .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Azure, Bootstrap, Agile and MongoDB. Top performers can expect to receive their first promotion (and pay rise) within 6 months. Our client offers ...

Java Software Engineer

Hiring Organisation
Primis
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
navigating inefficient processes. Key Responsibilities Translate merchant and partner needs into high-quality, scalable backend solutions Design and build robust Java-based systems and RESTful APIs Improve development processes through automation, simplification, and applied engineering experience Collaborate to ensure technically sound, observable, and testable deliverables Contribute to estimation, planning … Spring Core (IoC and Dependency Injection) Strong experience with relational databases, schema design, complex queries, and performance optimisation Experience designing and implementing scalable RESTful APIs Hands-on experience building high-availability, high-concurrency systems at scale Strong understanding of Design Patterns, Refactoring, and Object-Oriented Design principles Experience with ...

.NET Developer

Hiring Organisation
Noir
Location
Hertford, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £70,000 per annum
Developer, .NET 9, C# - Global Record Label - Hertford (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce that our client … .NET Core, C# and Azure SQL. Our client can provide training into: .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Solid, DRY, LINQ and MongoDB. My client offers flexible working hours, home working and amazing offices (onsite cinema ...