backend technology (.NET, Java Spring Boot, Node.js, etc.). Implement token-based authentication, authorization, and enforce API gateway policies. Establish best practices for API lifecycle management using Swagger/OpenAPI specifications. Design and manage sandbox environments with mock/test data for parallel system testing. Solve integration edge cases and performance bottlenecks proactively. Implement and promote 15-factor app … expertise in MuleSoft Anypoint Platform (Design Center, Runtime Manager, API Manager). Hands-on experience with API Gateway , OAuth2.0 , JWT , Client Credentials Flow , etc. Deep knowledge of RESTful APIs , OpenAPI/Swagger , and API mocking tools. Experience integrating APIs from multiple backends (.NET Core, Java Spring Boot, NodeJS, Python, etc.). Proficient in enterprise integration patterns , error handling, logging More ❯
GitHub. Desirable: Knowledge of LaunchDarkly or similar feature flagging tools. Familiarity with Agile methodologies. Experience with testing frameworks like xUnit. Knowledge of Angular or similar JavaScript frameworks. Experience with OpenAPI/Swagger. Understanding of OWASP top 10 security practices. Benefits Competitive salary, accredited Living Wage employer. 25 days holiday plus bank holidays, with options to purchase additional days. Discretionary More ❯
LaunchDarkly Familiarity with Agile methodologies and product delivery frameworks. Exposure to testing frameworks like xUnit for unit testing Comfortable with developing in Angular or similar Javascript frameworks. Familiarity with OpenAPI/Swagger for API documentation and testing Familiarity with OWASP top 10 and security web applications. Company Benefits Competitive salary - accredited Living Wage employer 25 days holiday per year More ❯
Bristol, Gloucestershire, United Kingdom Hybrid / WFH Options
Endeavour Recruitment Solutions
/or Kanban. Experience with XML development: XSD and XSLT (hands-on experience in XSLTs, DTD, XSDs). Experience with HTML DOM manipulation Familiarity with WSDL and Swagger/OpenApi web service definition formats. Experience working with stakeholders and business analysts to gather business requirements to derive functional and non-functional requirements. More ❯
Proven experience integrating systems via REST APIs, webhooks, or SDKs. Strong knowledge of one or more languages: Python, Java, C#, or Node.js. Familiarity with tools like Postman, Swagger/OpenAPI, MQTT, JSON, and XML data formats. Experience working with middleware platforms, messaging brokers, or integration layers (e.g., Azure IoT Hub, AWS IoT Core, or custom brokers). Systems Thinking More ❯
of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯
of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯
Employment Type: Permanent
Salary: £70000 - £90000/annum Hybrid, Great Benefits
of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯
Bristol, Gloucestershire, United Kingdom Hybrid / WFH Options
Twinstream Limited
Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable: Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯
Bristol, City of Bristol, United Kingdom Hybrid / WFH Options
Twinstream Limited
Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable: Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯
Employment Type: Permanent
Salary: £70000 - £90000/annum Hybrid, Great Benefits
Bristol, Avon, South West, United Kingdom Hybrid / WFH Options
Twinstream Limited
Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable: Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯
of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯
Bristol, England, United Kingdom Hybrid / WFH Options
TwinStream
Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯
Bristol, Gloucestershire, United Kingdom Hybrid / WFH Options
Just Eat Takeaway.com
and designs with colleagues. A proactive and adaptable mindset, with a passion for learning new technologies and a drive to explore innovative solutions. Familiarity with API Gateway management and OpenAPI specs. Experience with cloud platforms (e.g. Amazon AWS). At JET, this is on the menu: Our teams forge connections internally and work with some of the best-known More ❯
Cheltenham, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
evaluate technologies, libraries, and approaches for improving system reliability, auditing, and financial reconciliation accuracy. Open Standards: Support our commitment to observability and open standards. Contribute to initiatives around OpenTelemetry, OpenAPI, and other tools that improve transparency and traceability across services. About you At least 5 years of professional experience in software development, with a strong focus on Ruby on More ❯
Bath, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
evaluate technologies, libraries, and approaches for improving system reliability, auditing, and financial reconciliation accuracy. Open Standards: Support our commitment to observability and open standards. Contribute to initiatives around OpenTelemetry, OpenAPI, and other tools that improve transparency and traceability across services. About you At least 5 years of professional experience in software development, with a strong focus on Ruby on More ❯
Bournemouth, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
evaluate technologies, libraries, and approaches for improving system reliability, auditing, and financial reconciliation accuracy. Open Standards: Support our commitment to observability and open standards. Contribute to initiatives around OpenTelemetry, OpenAPI, and other tools that improve transparency and traceability across services. About you At least 5 years of professional experience in software development, with a strong focus on Ruby on More ❯