16 of 16 Permanent GraphQL Jobs in the City of London

Excellent problem‐solving, communication, and collaboration skills. Desired: Experience with microservices and event‐driven architectures. Experience with AI‐assisted design and coding. Knowledge of GraphQL and WebSockets. Familiarity with observability tools such as OpenTelemetry and Grafana. Experience with Infrastructure as Code (Terraform). Understanding of financial markets or trading systems. ...

using modern tooling to improve reliability and evolve architecture pragmatically. Strong system design fundamentals across scalability, performance, and distributed systems, including API design (REST, GraphQL). Hands-on experience with observability tooling (Datadog, Grafana, or similar) and a data-informed approach to system health and reliability. Solid SQL and data ...

Analytics Services development API development Web development Mobile development Security Performance optimisations Tech stack Infrastructure - AWS Backend Database - PostgreSQL Backend Application - Django, Python, GraphQL Frontend Web - React, TypeScript Frontend Mobile - React Native, TypeScript 🤸🏽♂️ Benefits & Perks Competitive Salary & Options 25 days holiday Unlimited holistic health days Enhanced parental policies Pension scheme ...

Advanced Python programming AI frameworks such as AutoGen, Langflow, Tensorflow Knowledge of Infrastructure as Code, CI/CD Use of Middleware and RESTful or GraphQL APIs Microservices and MACH Architectures. HTML, CSS, Javascript frameworks such as React, or Mobile technologies such as SwiftUI, Kotlin, Flutter or React‐native CMS, DXPs ...

policies, cross-tenant migrations, automation, and multi-tenant environments. Technical skills across PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query/DAX, REST APIs, GraphQL, Dataverse, and SQL databases. Good understanding of AI governance, compliance, responsible AI, and Microsoft 365 Copilot. Excellent communication, leadership, consulting, and stakeholder management skills. Desirable ...

Microsoft Copilot, Copilot Studio, AI governance, information architecture, and responsible AI practices. Strong technical background across PowerShell, PnP, Python, JavaScript, C#, JSON, REST APIs, GraphQL, SQL, and automation. Excellent client-facing communication, leadership, stakeholder management, and consulting skills. Desirable skills: Azure AI services, Azure landing zones, infrastructure as code ...

security, scalability, and performance optimization . Experience migrating legacy content into AEM, including scripting and automating content workflows. Familiarity with Adobe I/O , GraphQL , and Content Fragment Models . Practical experience in Agile delivery , CI/CD , and DevOps environments. Strong problem-solving and debugging skills, with the ability ...

agents. Develop agent-to-agent connectivity, including message contracts, state management, retries and failure handling. Design clear, scalable APIs using REST and/or GraphQL, including authentication, authorisation, versioning and streaming interfaces such as SSE or WebSockets. Build production frontend applications using React, TypeScript and JavaScript. Work closely with … backend and integration development. Strong TypeScript/JavaScript and React experience building production applications. Strong API design experience, including REST and/or GraphQL, authentication, authorisation, versioning and streaming. Hands-on experience with MCP (Model Context Protocol) or comparable tool/plugin integration technologies, alongside an interest in AI agents ...

Firebase or similar) Backend and API Tracing a request from UI through the mobile networking layer to the backend service and back REST/GraphQL/gRPC, OpenAPI and contract inspection, API gateway and BFF patterns OAuth 2.0/OIDC token flows as implemented on device Third-party SDK inventory ...

system evolution. Ability to develop a deep understanding of unfamiliar codebases and turn investigation into sound engineering decisions. Experience designing client‐facing REST and GraphQL APIs, with sound judgment about business‐logic placement, product states, and backward compatibility. Understanding of how mobile lifecycle and network constraints affect backend design. Strong ...

engineer (iOS-leaning) but focusing on Android (with some iOS) Optimising app performance for speed, memory usage, and battery efficiency Integrating with REST/GraphQL APIs for real-time data synchronisation Collaborating closely with a genuinely cross-functional team Writing and maintaining automated tests to ensure app stability and quality ...

experienced building extensions/scripts. Experience with developing and maintaining web-focused tooling and automation (Burp extensions, custom scanners, authenticated API fuzzers, GraphQL mutation explorers, Puppeteer/Playwright scripts). Experience with source code reviewing for control flow and security flaws A passion for constructively break things Want ...

enough to read, question and validate, not necessarily to write Backend, API and integration Mobile-to-backend integration patterns: BFF, API gateway, REST/GraphQL/gRPC, versioning and contract management Identity and authorisation: OAuth 2.0, OIDC, token lifecycle, session management, step-up authentication; FAPI and Open Banking awareness Understanding ...

languages and frameworks: JavaScript, React, TypeScript, Python, and GoLang. In addition, they'll also be looking for those with hands-on use in Neo4j, GraphQL, AWS, and Kubernetes. Demonstrating..." ``` #J-18808-Ljbffr ...

multiple channels. Contribute to event-driven architectures using Kafka to support high-volume transactional workflows across Payments, Pricing, and Fulfilment domains. Design and evolve GraphQL and REST APIs, ensuring consistency, performance, scalability, and an excellent developer experience. Build resilient, low-latency solutions using distributed databases, caching technologies, and modern architectural … enable multiple teams and products. Solid understanding of distributed systems, event-driven architectures, and asynchronous messaging patterns. Must have designed API-first platforms with GraphQL and REST-based services. Comfortable working with high-volume transactional systems where reliability, performance, and resilience are critical. What's in it for you Being ...

data, in 4 weeks, picking up a large set of new technologies on the way (ground up built from low-level services like Appsync, GraphQL, not Twilio). Dennis built a lightning fast cloud document library for clinics in a few days, with <100ms traversals through preloading. Recently, when faced … currently entirely in JS/TS: Angular + Capacitor + Electron, React (internal tools), Amplitude (analytics), a fully serverless backend in AWS (Cognito, Appsync GraphQL, Lambda, DynamoDB). We have good functional & unit test coverage and CI/CD. Our stack is in a great place already: highly scalable, cost ...