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9 Contract API jobs in Sunderland + 20 miles
91 exact matches jobs are outside your preferred location
Plan and execute offensive engagements across web/mobile/API, auth flows, and business logic * 5+ years in AppSec/offensive security focused on web/API
Plan and execute offensive engagements across web/mobile/API, auth flows, and business logic * 5+ years in AppSec/offensive security focused on web/API
Work with back-end teams to align API integration and interface logic.
Work with back-end teams to align API integration and interface logic.
The platform supports everything from game deployment and integration to player session management, promotions, reporting, and third-party API connectivity.
The platform supports everything from game deployment and integration to player session management, promotions, reporting, and third-party API connectivity.
Knowledge of RESTful API design and development
Knowledge of RESTful API design and development
Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API)
Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API)
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Experience interacting with a variety of API technologies, such as REST, JSON and XML * Experience working with AWS, using services such as ECS, S3 and API Gateway (Optional)
Experience interacting with a variety of API technologies, such as REST, JSON and XML * Experience working with AWS, using services such as ECS, S3 and API Gateway (Optional)
Knowledge of API design principles, patterns (SOAP, REST), data formats (JSON, XML), and hands-on experience executing APIs through scripting.
Knowledge of API design principles, patterns (SOAP, REST), data formats (JSON, XML), and hands-on experience executing APIs through scripting.
Implement and optimize robust API integrations (REST and GraphQL) with backend systems. * Reliable delivery of API-driven features that meet product requirements. * Demonstrated experience building and maintaining API integrations (REST, GraphQL, or gRPC).
Implement and optimize robust API integrations (REST and GraphQL) with backend systems. * Reliable delivery of API-driven features that meet product requirements. * Demonstrated experience building and maintaining API integrations (REST, GraphQL, or gRPC).
Language: Java 8/21 Frameworks: Spring Boot (Tomcat, Netty), Spring Data, Spring Cloud Architecture: Microservices, REST API, Message Queues, WebSocket Database: MySQL, MyBatis, MongoDB Caching: Redis/ValKey (AWS ElastiCache), ElasticSearch Message Queue: RocketMQ Cloud: Kubernetes, AWS Monitoring: Grafana, Prometheus, Loki, Tempo, AWS CloudWatch, OpenTelemetry CI/CD: Jenkins, ArgoCD What you'll be doing
Language: Java 8/21 Frameworks: Spring Boot (Tomcat, Netty), Spring Data, Spring Cloud Architecture: Microservices, REST API, Message Queues, WebSocket Database: MySQL, MyBatis, MongoDB Caching: Redis/ValKey (AWS ElastiCache), ElasticSearch Message Queue: RocketMQ Cloud: Kubernetes, AWS Monitoring: Grafana, Prometheus, Loki, Tempo, AWS CloudWatch, OpenTelemetry CI/CD: Jenkins, ArgoCD What you'll be doing
Advanced understanding of good practice API development, integration, and testing (e.g. RESTful services, GraphQL). * Experience with both front-end (e.g. React, TypeScript) and back-end (.NET C#, ASP.NET) development, especially related to API consumption good practices such as schema validation, or event-driven architectures (e.g. webhooks).
Advanced understanding of good practice API development, integration, and testing (e.g. RESTful services, GraphQL). * Experience with both front-end (e.g. React, TypeScript) and back-end (.NET C#, ASP.NET) development, especially related to API consumption good practices such as schema validation, or event-driven architectures (e.g. webhooks).
Develop data monetization strategies, including internal value creation (e.g., operational efficiency, personalization) and external revenue models (e.g., data-as-a-service, API products).
Develop data monetization strategies, including internal value creation (e.g., operational efficiency, personalization) and external revenue models (e.g., data-as-a-service, API products).
Strong understanding of software development lifecycle (SDLC), data mapping, and API integration.
Strong understanding of software development lifecycle (SDLC), data mapping, and API integration.
Define and execute the technical strategy around customer facing platforms such as API frameworks, browser and mobile solutions, AI protocols and data processing pipelines
Define and execute the technical strategy around customer facing platforms such as API frameworks, browser and mobile solutions, AI protocols and data processing pipelines
Familiarity with application programming interfaces (API)
Familiarity with application programming interfaces (API)
SharePoint CSOM API * SharePoint Rest API v1 & 2
SharePoint CSOM API * SharePoint Rest API v1 & 2
Comfortable writing Python scripts for data wrangling and API interaction
Comfortable writing Python scripts for data wrangling and API interaction
Our mission with MAAS ("Metal as a Service") is to provide the best solution for building and running private bare-metal infrastructure, putting a cloud-style on-demand API in front of physical server provisioning, network configuration, and storage. Its components span the entire software stack: from low-level hardware detection and provisioning, to the upper level management web interface, API, and CLI.
Our mission with MAAS ("Metal as a Service") is to provide the best solution for building and running private bare-metal infrastructure, putting a cloud-style on-demand API in front of physical server provisioning, network configuration, and storage. Its components span the entire software stack: from low-level hardware detection and provisioning, to the upper level management web interface, API, and CLI.
Institutional User Experience (UX/API) This includes driving excellence across both the Web UI and API architecture, ensuring resilience, scalability, and ease of integration for institutional clients. * Proven ability to translate complex financial and security requirements into intuitive, compliance-aware user journeys for web platforms and B2B API integrations.
Institutional User Experience (UX/API) This includes driving excellence across both the Web UI and API architecture, ensuring resilience, scalability, and ease of integration for institutional clients. * Proven ability to translate complex financial and security requirements into intuitive, compliance-aware user journeys for web platforms and B2B API integrations.
Define and maintain the roadmap for sportsbook platform capabilities such as risk controls, bet management systems, admin portals, promotional tools and API services.
Define and maintain the roadmap for sportsbook platform capabilities such as risk controls, bet management systems, admin portals, promotional tools and API services.
Want a 3D Career? Join Norgine. At Norgine, our colleagues Dare themselves to be different and try new things, Drive to achieve their goals and beyond, and Develop themselves and their community. We call it the 3D career at Norgine and it offers you a fully-rounded experience with no limits. Bring everything about yourself that youre proud of, whether thats your passion for making a difference, focus on others well-being, or intellectual curiosity to unleash in a fast-paced environment and supportive community. In return, get a sense of belonging, a long-term career with ongoing development and upskilling, and a company that cares about peoples wellness as much as you do. Norgine: Transforming Healthcare, Backed by Over a Century of Expertise. We have an exciting opportunity for an Enterprise Architect to join Norgine.
Want a 3D Career? Join Norgine. At Norgine, our colleagues Dare themselves to be different and try new things, Drive to achieve their goals and beyond, and Develop themselves and their community. We call it the 3D career at Norgine and it offers you a fully-rounded experience with no limits. Bring everything about yourself that youre proud of, whether thats your passion for making a difference, focus on others well-being, or intellectual curiosity to unleash in a fast-paced environment and supportive community. In return, get a sense of belonging, a long-term career with ongoing development and upskilling, and a company that cares about peoples wellness as much as you do. Norgine: Transforming Healthcare, Backed by Over a Century of Expertise. We have an exciting opportunity for an Enterprise Architect to join Norgine.
Description - About the team: At Vintage Cash Cow, technology is how we scale impact. Every customer journey, from sending in pre-loved items to getting paid, is powered by the systems we design, the products we build, and the data we unlock. Our Technology & Data team is at the heart of this transformation driving greenfield product development, experimenting with fresh ideas, and bringing innovative solutions to life. Were building modern, scalable, and customer-focused platforms that set the standard for the re-commerce industry. This is a team where curiosity meets craft: blending creativity, technical excellence, and a product mindset to deliver experiences that feel simple, rewarding, and future-proof. About the role: Were looking for a Senior Full Stack .NET Developer to shape the next generation of Vintage Cash Cows platforms.
Description - About the team: At Vintage Cash Cow, technology is how we scale impact. Every customer journey, from sending in pre-loved items to getting paid, is powered by the systems we design, the products we build, and the data we unlock. Our Technology & Data team is at the heart of this transformation driving greenfield product development, experimenting with fresh ideas, and bringing innovative solutions to life. Were building modern, scalable, and customer-focused platforms that set the standard for the re-commerce industry. This is a team where curiosity meets craft: blending creativity, technical excellence, and a product mindset to deliver experiences that feel simple, rewarding, and future-proof. About the role: Were looking for a Senior Full Stack .NET Developer to shape the next generation of Vintage Cash Cows platforms.
Crawley, United Kingdom - We dont just build technology. We build hope f or everyone dealing with cancer. Are you passionate about building software that makes a real difference? At Elekta, were looking for a Senior Software Development Engineer to help drive innovation in our Radiation Therapy Treatment systems. Youll be developing cutting-edge workflow, delivery, and imaging software for medical devicesworking within a safety-critical environment where software quality is paramount and embedded into our CI/CD pipelines. Guided by system architecture and technical leadership, youll collaborate in agile teams to deliver impactful solutions that improve patient outcomes worldwide. * Define, design, develop and maintain application components, services and APIs on the Elekta Domain-based service-oriented platform, hosted on containers.
Crawley, United Kingdom - We dont just build technology. We build hope f or everyone dealing with cancer. Are you passionate about building software that makes a real difference? At Elekta, were looking for a Senior Software Development Engineer to help drive innovation in our Radiation Therapy Treatment systems. Youll be developing cutting-edge workflow, delivery, and imaging software for medical devicesworking within a safety-critical environment where software quality is paramount and embedded into our CI/CD pipelines. Guided by system architecture and technical leadership, youll collaborate in agile teams to deliver impactful solutions that improve patient outcomes worldwide. * Define, design, develop and maintain application components, services and APIs on the Elekta Domain-based service-oriented platform, hosted on containers.
Role: Java Engineer - Native Apps - Location: London office / Hybrid (2 days per week in the office) Reporting to: Engineering Manager - Rightmoves Native Apps are central to how millions of people find their next home. We are investing in creating faster, smarter, and more personalised mobile experiences, built on modern technology, powered by data, and driven by teams who care deeply about quality and collaboration. As part of this transformation, the Native Apps engineering group is becoming a space for experimentation and innovation, where backend systems and mobile experiences come together more seamlessly than ever before. Joining now means helping to shape how we design, build, and scale the technology that powers the UKs most trusted property platform, while contributing to an inclusive engineering culture that values learning, creativity, and impact. The Role
Role: Java Engineer - Native Apps - Location: London office / Hybrid (2 days per week in the office) Reporting to: Engineering Manager - Rightmoves Native Apps are central to how millions of people find their next home. We are investing in creating faster, smarter, and more personalised mobile experiences, built on modern technology, powered by data, and driven by teams who care deeply about quality and collaboration. As part of this transformation, the Native Apps engineering group is becoming a space for experimentation and innovation, where backend systems and mobile experiences come together more seamlessly than ever before. Joining now means helping to shape how we design, build, and scale the technology that powers the UKs most trusted property platform, while contributing to an inclusive engineering culture that values learning, creativity, and impact. The Role
About Kinaxis: About Kinaxis - Elevate your career journey by embracing a new challenge with Kinaxis. We are experts in tech, but its really our people who give us passion to always seek ways to do things better. As such, were serious about your career growth and professional development, because People matter at Kinaxis. In 1984, we started out as a team of three engineers based in Ottawa, Canada. Today, we have grown to become a global organization with over 2000 employees around the world, and support 40,000+ users in over 100 countries. As a global leader in end-to-end supply chain management, we enable supply chain excellence for all industries. We are expanding our team in Europe and around the world as we continue to innovate and revolutionize how we support our customers. Our regional offices serve as centralized hubs where employees and customers from across
About Kinaxis: About Kinaxis - Elevate your career journey by embracing a new challenge with Kinaxis. We are experts in tech, but its really our people who give us passion to always seek ways to do things better. As such, were serious about your career growth and professional development, because People matter at Kinaxis. In 1984, we started out as a team of three engineers based in Ottawa, Canada. Today, we have grown to become a global organization with over 2000 employees around the world, and support 40,000+ users in over 100 countries. As a global leader in end-to-end supply chain management, we enable supply chain excellence for all industries. We are expanding our team in Europe and around the world as we continue to innovate and revolutionize how we support our customers. Our regional offices serve as centralized hubs where employees and customers from across
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Location: London Office / Hybrid (3 days a week working from home) Reporting to: Engineering Manager Customer domain - The Role - As a Senior Full Stack Engineer, you will play a key role in delivering high-quality, customer-facing software and services that power the customer experience at Rightmove. While the focus of the role is front-end engineering ( 70% React, Typescript), you will also contribute to the design and development of our backend services (30% Java, Spring Boot, Kafka), ensuring seamless end-to-end delivery. Youll work in an autonomous cross-functional team of engineers, designers, and product managers, building features that scale to millions of users and thousands of agents. Youll take ownership of technical decisions, mentor others, and help evolve our engineering practices with a modern mindset. Key Responsibilities
Location: London Office / Hybrid (3 days a week working from home) Reporting to: Engineering Manager Customer domain - The Role - As a Senior Full Stack Engineer, you will play a key role in delivering high-quality, customer-facing software and services that power the customer experience at Rightmove. While the focus of the role is front-end engineering ( 70% React, Typescript), you will also contribute to the design and development of our backend services (30% Java, Spring Boot, Kafka), ensuring seamless end-to-end delivery. Youll work in an autonomous cross-functional team of engineers, designers, and product managers, building features that scale to millions of users and thousands of agents. Youll take ownership of technical decisions, mentor others, and help evolve our engineering practices with a modern mindset. Key Responsibilities
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