5 of 5 Permanent API Design Jobs in the City of London

Application Security Specialist Our client is looking to hire mid-level API & Application Security Specialist to join them on a 6-month initial contract, to work remotely with some occasional trips to the London site. This role will be operating INSIDE IR35 Key Skills Required: Deep knowledge of OWASP … API Top 10 Able to review Swagger/Open API specs for vulnerabilities Advise on secure API design patterns Familiar with fallback controls such as WAF's, API gateways Experience using SIEM/logging tools to track API threats Familiarity with NIST, OWASP SAMM … or internal security frameworks Experience producing risk dashboards/reports for API's Able to translate technical risks into business language, collaborating with key stakeholders If interested in this role, please apply today More ❯

Application Security Specialist Our client is looking to hire mid-level API & Application Security Specialist to join them on a 6-month initial contract, to work remotely with some occasional trips to the London site. This role will be operating INSIDE IR35 Key Skills Required: Deep knowledge of OWASP … API Top 10 Able to review Swagger/Open API specs for vulnerabilities Advise on secure API design patterns Familiar with fallback controls such as WAF's, API gateways Experience using SIEM/logging tools to track API threats Familiarity with NIST, OWASP SAMM … or internal security frameworks Experience producing risk dashboards/reports for API's Able to translate technical risks into business language, collaborating with key stakeholders If interested in this role, please apply today More ❯

integration. If you enjoy working with both established and emerging technologies in a collaborative environment, we d love to hear from you. Key Responsibilities Design, develop, and maintain scalable web applications using .NET and Vue.js. Support and enhance legacy systems built with older .NET and Vue.js versions. Optimize database … least 3 years of experience building modern front-end applications with Vue.js (including both Vue 2 and Vue 3). Strong understanding of RESTful API design and integration. Proficient in object-oriented programming and applying SOLID principles in real-world projects. Comfortable working in Agile or Scrum-based … process automation tools such as Camunda. Proficient in automated testing using frameworks like NUnit or Playwright. Understanding of architectural patterns such as Domain-Driven Design (DDD), event-driven systems, and microservices. Knowledge of Behavior-Driven Development (BDD) and Test-Driven Development (TDD) methodologies. What s on Offer 4 Wellbeing More ❯

ll work side-by-side with the Founder & CEO to bring Tetto from concept to product-market fit and beyond. You'll lead the design and build of our MVP, data infrastructure, and API-first architecture, setting the foundation for how we acquire, underwrite, and serve customers in … and launch the MVP using lean, modern technologies (utilising low/no-code, AI-powered IDEs, external APIs, pre-built insurance tools where useful) Design, integrate, and manage data pipelines across property data, IoT, geospatial risk, customer behavior, and third-party APIs Build Tetto's own API layer … startup or fast-scaling tech company Proven ability to ship MVPs fast , with a pragmatic approach to technical debt and iteration Deep understanding of API design and integration , including building API endpoints that can embed into third-party platforms Experience with data architecture and enrichment , particularly around More ❯

This role requires leadership skills, cross-functional collaboration, and the ability to drive the development of a new global data platform. Key Responsibilities Architectural Design in cloud based environments: Develop and implement robust IT architecture strategies for cloud and hybrid environments, leveraging AWS best practices. Design scalable, secure … Implement and manage cloud-native services, including compute, storage, databases (SQL & NoSQL), and serverless architectures. Ensure cost-efficient and optimized cloud usage. Networking Focus: Design and implement secure networking solutions using AWS networking services such as VPCs, Transit Gateway, Direct Connect, VPN, Route 53, and CloudFront. Configure and troubleshoot … scenarios, including hybrid cloud setups. Manage network performance and security standards, including SLAs, bandwidth, latency, and IPSec VPN configurations. Data Platform Implementation: Lead the design and development of a new global data platform (PaaS) Ensure scalable storage solutions (data lakes, data warehouses) to handle structured and unstructured data. Implement More ❯