51 to 75 of 423 API Development Jobs

Senior Back-end Engineer

Hiring Organisation
Calyptus
Location
Slough, Berkshire, UK
Employment Type
Full-time
100s of high-paying roles. Sign up now at and let the opportunities come to you. Key responsibilities: Technical Architecture: lead the design and development of backend services for our SaaS B2B platform, focusing on creating an open architecture that integrates various players in the private equity ecosystem Microservices … build and maintain microservices using Java 21 and Spring Boot, ensuring scalability, reliability, and performance API Development: develop and optimise RESTful APIs to support our frontend applications built with React and TypeScript Platform Integration: ensure seamless integration of our platform with third-party systems used by PE firms ...

Senior Back-end Engineer

Hiring Organisation
Calyptus
Location
England, United Kingdom
/app.calyptus.co/auth/candidate/sign-up and let the opportunities come to you. Key responsibilities: Technical Architecture: lead the design and development of backend services for our SaaS B2B platform, focusing on creating an open architecture that integrates various players in the private equity ecosystem Microservices … build and maintain microservices using Java 21 and Spring Boot, ensuring scalability, reliability, and performance API Development: develop and optimise RESTful APIs to support our frontend applications built with React and TypeScript Platform Integration: ensure seamless integration of our platform with third-party systems used by PE firms ...

Senior Back-end Engineer

Hiring Organisation
Calyptus
Location
City of London, London, United Kingdom
/app.calyptus.co/auth/candidate/sign-up and let the opportunities come to you. Key responsibilities: Technical Architecture: lead the design and development of backend services for our SaaS B2B platform, focusing on creating an open architecture that integrates various players in the private equity ecosystem Microservices … build and maintain microservices using Java 21 and Spring Boot, ensuring scalability, reliability, and performance API Development: develop and optimise RESTful APIs to support our frontend applications built with React and TypeScript Platform Integration: ensure seamless integration of our platform with third-party systems used by PE firms ...

Senior Back-end Engineer

Hiring Organisation
Calyptus
Location
London Area, United Kingdom
/app.calyptus.co/auth/candidate/sign-up and let the opportunities come to you. Key responsibilities: Technical Architecture: lead the design and development of backend services for our SaaS B2B platform, focusing on creating an open architecture that integrates various players in the private equity ecosystem Microservices … build and maintain microservices using Java 21 and Spring Boot, ensuring scalability, reliability, and performance API Development: develop and optimise RESTful APIs to support our frontend applications built with React and TypeScript Platform Integration: ensure seamless integration of our platform with third-party systems used by PE firms ...

Guidewire Insurance Integration Architect

Hiring Organisation
Accenture
Location
London Area, United Kingdom
team: We are seeking a highly skilled General Insurance & London Markets Integration Architect with experience in Guidewire applications to lead the design, development, and implementation of integration solutions for large-scale insurance carriers. This role is critical in ensuring seamless connectivity between Insurance platforms (e.g., Guidewire PolicyCenter, BillingCenter, ClaimCenter … Responsibilities: Integration Architecture & Solution Design Architect scalable, high-performance, and secure integration solutions for Insurance policy, billing, and claims platforms including Guidewire InsuranceSuite Define API-first integration strategies using RESTful API services to enable seamless data exchange between insurance applications, reinsurers, brokers, and third-party platforms. Implement microservices ...

Guidewire Insurance Integration Architect

Hiring Organisation
Accenture
Location
City of London, London, United Kingdom
team: We are seeking a highly skilled General Insurance & London Markets Integration Architect with experience in Guidewire applications to lead the design, development, and implementation of integration solutions for large-scale insurance carriers. This role is critical in ensuring seamless connectivity between Insurance platforms (e.g., Guidewire PolicyCenter, BillingCenter, ClaimCenter … Responsibilities: Integration Architecture & Solution Design Architect scalable, high-performance, and secure integration solutions for Insurance policy, billing, and claims platforms including Guidewire InsuranceSuite Define API-first integration strategies using RESTful API services to enable seamless data exchange between insurance applications, reinsurers, brokers, and third-party platforms. Implement microservices ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
process flow diagrams, conducting time-motion studies, identifying bottlenecks and inefficiencies, and redesigning processes to be machine-readable and automation-ready using methodologies. Python Development - Strong proficiency in Python programming including object-oriented design, asynchronous programming, error handling, and writing clean, maintainable code. Experience with key libraries including Pandas … business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
process flow diagrams, conducting time-motion studies, identifying bottlenecks and inefficiencies, and redesigning processes to be machine-readable and automation-ready using methodologies. Python Development - Strong proficiency in Python programming including object-oriented design, asynchronous programming, error handling, and writing clean, maintainable code. Experience with key libraries including Pandas … business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £700 per day
process flow diagrams, conducting time-motion studies, identifying bottlenecks and inefficiencies, and redesigning processes to be machine-readable and automation-ready using methodologies. Python Development - Strong proficiency in Python programming including object-oriented design, asynchronous programming, error handling, and writing clean, maintainable code. Experience with key libraries including Pandas … business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. ...

C# .NET Software Developer $95/hr Srinivasa Kandi

Hiring Organisation
VALIANT TECHNOLOGIES LLC
Location
Atlanta, Georgia, United States
Employment Type
Any
Salary
USD 95 Hourly
team! You can work remote a couple of days a week as well! This company is looking for candidates who have a passion for development! Requirements What You MUST HAVE: Senior level Dev Experience with .NET C# - 10+ years Angular 13 experience is required! - LATEST version of Angular required … Full stack Software Development and experience Re-factoring Web Applications experience is a plus! REST API Development Learn mobile development! 4 year degree Preferred (Prefer Computer Science or similar) Note: If you are interested, please share your updated resume and suggest the best number & time ...

Senior Software Engineer

Hiring Organisation
General Motors
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 80,000 - 100,000 Annual
successful delivery of high-quality products. Key responsibilities include: Design and implementation of robust, scalable applications using Java, Spring, and Spring Boot. Lead development efforts on IoT projects, ensuring integration from hardware through to back-end systems and UI. Write clean, maintainable, and efficient code while adhering to best … front end UI. Drive root cause analysis and systemic remediation in a timely manner. Skills Required: 6+ years of professional experience in software development with a focus on Java, Spring, and Spring Boot. Strong understanding of IoT technologies, including experience with connected devices, sensors, and protocols. Proven experience ...

MEAN Stack Developer (CRM System Development)

Hiring Organisation
Enhanced Payment Systems
Location
Chicago, Illinois, United States
Employment Type
Any
Salary
USD Annual
Location : Chicago Experience : 3+ years in MEAN stack development Employment Type : Full-Time Job Description : We are seeking a highly skilled and motivated MEAN Stack Developer to join our dynamic team. The primary role will involve developing and maintaining our custom CRM system. The ideal candidate will have … building scalable and efficient applications using MongoDB, Express.js, Angular, and Node.js, with a focus on AWS cloud integration. Key Responsibilities : Participate in the development and enhancement of our CRM system. Ensure the AWS platform, including Lambda services and MongoDB databases, is up-to-date and fully optimized. Collaborate with ...

Software Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Standards: FHIR, HL7, SNOMED CT (training available) What We're Looking For Solid commercial experience with PHP and Laravel Experience with React.js for frontend development Strong understanding of API development and relational databases Exposure to cloud platforms or containerisation is a bonus Passion for building technology that ...

Java Full stack Developer

Hiring Organisation
HCLTech
Location
Bradford, UK
Employment Type
Full-time
refer to HCLTech' s Candidate Data Privacy Notice. Job Description- We are seeking a skilled and passionate Java Fullstack Engineer to join our agile development team. You will play a key role in designing and building scalable backend microservices, configuring cloud-native DevOps pipelines, and contributing to our credit … focus on performance and reliability. Work closely with architects and product owners to define technical solutions aligned with business goals. Required Skills & Experience Backend Development: 5–15 years of experience with Java, Spring Boot, and microservices architecture. DevOps & Cloud: Hands-on experience with GCP, AWS, or Azure; familiarity with ...

Java Full stack Developer

Hiring Organisation
HCLTech
Location
Leeds, England, United Kingdom
refer to HCLTech’ s Candidate Data Privacy Notice. Job Description- We are seeking a skilled and passionate Java Fullstack Engineer to join our agile development team. You will play a key role in designing and building scalable backend microservices, configuring cloud-native DevOps pipelines, and contributing to our credit … focus on performance and reliability. Work closely with architects and product owners to define technical solutions aligned with business goals. Required Skills & Experience Backend Development: 5–15 years of experience with Java, Spring Boot, and microservices architecture. DevOps & Cloud: Hands-on experience with GCP, AWS, or Azure; familiarity with ...

Senior Front-End Developer - React

Hiring Organisation
Reed
Location
Seaton Delaval, Whitley Bay, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £62,000 per annum, Inc benefits
Access to a dedicated wellbeing hub and staff support networks Flexible working arrangements to suit your lifestyle Generous annual leave and pension scheme Professional development through extensive training programmes Salary sacrifice schemes for childcare, electronics, and savings Opportunities to work on innovative projects that impact real lives The Role … Senior Front-End Developer, you’ll lead the design and development of secure, scalable web applications using modern Typescript/JavaScript frameworks. You’ll work in an agile, cross-functional team, contributing to strategic digital initiatives and mentoring junior developers. Key Responsibilities: Develop and maintain high-quality front ...

Mulesoft Architect

Hiring Organisation
Adroit People Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£420 per day
department requirements. Strong communication and presentation skills Mulesoft Platform Architect or Mulesoft Integration Architect certification is an advantage. Qualifications: Practical experience in MuleSoft API Development, MuleSoft Flow development and MuleSoft cloud hub Demonstrate good proficiency working with the MuleSoft Anypoint Platform MuleSoft Certified: MuleSoft … certification Knowledge of API-management and micro-services 15 to 20+ years hands on experience in integration development, testing and deployment experience. Senior level integration experience as a Senior Mulesoft Developer/Architect+ Experience in MuleSoft other integration technologies. Should be able to drive KPIs and value-adds ...

Database Principal Engineer

Hiring Organisation
Whitehall Resources
Location
Sheffield, England, United Kingdom
advancements in engineering practices, evaluating and recommending innovative solutions as appropriate. * Support the Platform Lead and identify solutions to engineering gaps/challenges. * Facilitate development of cross-functional capabilities to address common gaps/challenges. * Act as key point of contact for engineering decisions from a technical and risk … databases infrastructure capabilities work. * Expertise in infrastructure components, performance tuning, and capacity planning. * Understanding of, and hands on experience of, micro services, software development, infrastructure automation, api development and basic application system's design. * Strong understanding experience on Site Reliability Engineering, DevOps Capabilities (CI/CD/ ...

Senior Fullstack Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
experience working as a Full Stack Developer within the public sector Active Security Clearance (SC) Strong proficiency in Java and Spring Boot for Backend development Solid experience with React and Next.js for Frontend development Hands-on experience working with Cloud environments (AWS) Experience implementing CI/CD pipelines … familiarity with Docker/Kubernetes Skilled in API development and microservices architecture Strong technical and leadership capabilities Nice to have: Immediate availability Previous experience delivering greenfield development If you're interested in this role, click 'apply now' to forward an up-to-date copy of your ...

Mule soft Architect

Hiring Organisation
InfinityQuest Ltd,
Location
London, United Kingdom
Employment Type
Contract
Practical experience in MuleSoft API Development, MuleSoft Flow development and MuleSoft cloud hub Demonstrate good proficiency working with the MuleSoft Anypoint Platform MuleSoft Certified: MuleSoft MCD or MCA certification Knowledge of API-management and micro-services 15 to 20+ years hands on experience in integration development …/SQL will be considered an advantage. Understanding of interface automated testing and troubleshooting. Experience working as a member of a small agile software development team, eg, participating in planning sessions and interpreting user stories, doing code reviews, pair programming. ...

Senior Software Engineer - Pensions, ISA and Investments

Hiring Organisation
Hargreaves Lansdown
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Part Time
Salary
£80,000
processes. Responsible for documenting all solutions, produced to agreed team standards. Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed … support the development team. Continually develop both technical and interpersonal skills. Providing engineering support for existing applications when necessary. About You Professional experience with AWS, full stack TypeScript with React on the front end, IaC, CI/CD Experience with unit, integration, and end to end testing tools ...

Senior Full Stack Developer (SC Cleared)

Hiring Organisation
Montash
Location
England, United Kingdom
major digital programme. This role involves delivering secure, scalable applications across Java and React ecosystems, contributing to new greenfield services, and supporting cloud-native development on AWS. *Active SC clearance (mandatory)* You will work within an engineering team responsible for designing, building, and maintaining high-performance systems that support … Docker, Kubernetes) • Collaborate with architects and senior engineers to drive technical decisions • Participate in code reviews, documentation, and best-practice engineering processes • Support greenfield development activities across the platform Required Skills & Experience • Extensive full stack development experience • Strong proficiency with Java, Spring Boot • Solid experience with React ...

Mule soft Architect

Hiring Organisation
Avensys Consulting UK
Location
City of London, London, United Kingdom
department requirements. Strong communication and presentation skills Mulesoft Platform Architect or Mulesoft Integration Architect certification is an advantage. Qualifications: Practical experience in MuleSoft API Development, MuleSoft Flow development and MuleSoft cloud hub Demonstrate good proficiency working with the MuleSoft Anypoint Platform MuleSoft Certified: MuleSoft … certification Knowledge of API-management and micro-services 15 to 20+ years hands on experience in integration development, testing and deployment experience. Senior level integration experience as a Senior Mulesoft Developer/Architect+ Experience in MuleSoft other integration technologies. Should be able to drive KPIs and value-adds ...

Mule soft Architect

Hiring Organisation
Avensys Consulting UK
Location
London Area, United Kingdom
department requirements. Strong communication and presentation skills Mulesoft Platform Architect or Mulesoft Integration Architect certification is an advantage. Qualifications: Practical experience in MuleSoft API Development, MuleSoft Flow development and MuleSoft cloud hub Demonstrate good proficiency working with the MuleSoft Anypoint Platform MuleSoft Certified: MuleSoft … certification Knowledge of API-management and micro-services 15 to 20+ years hands on experience in integration development, testing and deployment experience. Senior level integration experience as a Senior Mulesoft Developer/Architect+ Experience in MuleSoft other integration technologies. Should be able to drive KPIs and value-adds ...

Senior Backend Developer

Hiring Organisation
The Portfolio Group
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£65000 - £80000/annum
applications. This is a highly collaborative role for someone with a passion for software craftsmanship and continuous improvement. Using your 5+ years of backend development experience, you'll enhance core product features, design scalable systems, and work closely with relevant stakeholders to deliver technical solutions that drive real value. … Beyond your individual contributions, you'll mentor junior developers, champion best practices, and drive meaningful improvements in our development processes and tools. This is an opportunity to make a real impact; both through the systems you build and the team culture you help shape. As a Senior Backend Developer ...