51 to 70 of 70 OpenAPI Jobs in London

Product & Solution Design Additional required experiences: Understanding of REST APIs, microservices architecture and cloud-based environments Knowledge of TM Forum frameworks (eTOM, SID, OpenAPI) is a plus Knowledge of Telecom and satellite systems Tools based scaled Agile delivery and DevOps – using in-house technical delivery, systems integrators and product ...

with LLM tooling such as LangChain, Claude or the OpenAI APIs. Python or similar for data integration and API work. REST APIs, JSON, OpenAPI specifications, Snowflake or other cloud data warehouses. CRM platforms such as Veeva, Salesforce or HubSpot. What success looks like after twelve months ...

with MCP, or with LLM tooling such as LangChain, Claude or the OpenAI APIs.Python or similar for data integration and API work.REST APIs, JSON, OpenAPI specifications, Snowflake or other cloud data warehouses.CRM platforms such as Veeva, Salesforce or HubSpot.What success looks like after twelve monthsYou are the technical lead ...

TanStack Query at depth: query-key design, cache invalidation, stale policies and prefetch through route loaders. Third-party integration. Identity verification, document upload and OpenAPI-generated API clients. Roles and permissions. Enforced in the interface as well as the API. Testing as a habit. Vitest, React Testing Library ...

actually behaves. Experience with ERP or supply-chain systems, Salesforce, Microsoft 365, Google Workspace, Slack, data warehouses, object stores, message brokers, Airbyte, Meltano, Singer, OpenAPI, MCP or similar integration ecosystems is useful. So is experience with schema registries, change-data capture, data lineage, temporal data, knowledge graphs ...

with global teams.Exceptional English and Chinese communication skills are highly valued.Preferred qualifications:Experience with global card networks (Visa, Mastercard, Amex) and banking partners.Familiarity with OpenAPI/Swagger, Postman, GitHub, or API client tooling.Hands-on experience as a developer is a plus.Knowledge of regulatory compliance, KYC/AML, and card ...

Exceptional English and Chinese communication skills are highly valued. Preferred qualifications: Experience with global card networks (Visa, Mastercard, Amex) and banking partners. Familiarity with OpenAPI/Swagger, Postman, GitHub, or API client tooling. Hands-on experience as a developer is a plus. Knowledge of regulatory compliance, KYC/ ...

Back End languages Python, Golang, or Java. Schema-driven experiences: Experience building dynamic, schema-driven UIs and services from structured contracts such as the OpenAPI Specification (OAS) or JSON Schema. API gateway configuration: Professional experience configuring API gateways - Kong, Envoy, Akamai/CloudFront including routes, services, upstreams, and plugins. ...

coordinating with agile teams and stakeholders. The role requires hands-on experience with webMethods products (Integration Server, API Gateway, Universal Messaging, Designer, Swagger/OpenAPI) and collaboration tools like #J-18808-Ljbffr ...

engineer for a 5-day onsite contract. Rate 400 GBP/day inside IR-35. You will build schema-driven UIs and services from OpenAPI/JSON Schema, configure API gateways (Kong, Envoy, CloudFront), work in a GitOps delivery model, and use CLI/tooling for gateway onboarding. Experience ...

Hands-on experience designing schemas for relational databases, messaging, data lakes/lakehouses (Databricks, Snowflake, or equivalent), and API/message formats (JSON Schema, OpenAPI, Avro, Protobuf). Strong understanding of metadata and lineage management.• 5+ years of experience, or demonstrated delivery against requirements in data modelling, data architecture ...

Experience in designing and implementing model/metric endpoints as part of a platform ecosystem with clear contracts and SLOs (e.g., FastAPI/Flask, OpenAPI), deploying via AWS Lambda/API Gateway or containers How we work Hybrid with in‐person collaboration at our Vauxhall HQ and flexibility ...

authentication; able to read technical documentation and hold your own in design discussions with engineers. Hands-on experience with API tooling (Postman, Swagger/OpenAPI) and using Claude to accelerate your prototyping, design, and vibe-coded concepts, before engineers make them production-grade. A track record of shipping ...

We are recruiting for a Software Engineer Consultant on behalf of one of the UK's fastest-growing technology consultancies, ranked in the Financial Times FT1000 Europe's Fastest-Growing Companies list in both 2025 ...

persist-client, stale-while-revalidate cache design, and offline-first hydration patterns Comfortable working within a codegen API layer (Orval or equivalent) — understanding the OpenAPI contract, extending generated hooks without breaking the pipeline, and knowing when to step outside it Solid understanding of layered storage architecture — in-memory state ...

WebMethods Developer Pay Rate: Up to £690 per day umbrella only Clearance Required: Active MOD SC Duration: 6 months Location: Hybrid - 1 day per week in the office in either Bristol or London Job Description ...

WebMethods Developer Pay Rate: Up to £690 per day umbrella only Clearance Required: Active MOD SC Duration: 6 months Location: Hybrid - 1 day per week in the office in either Bristol or London Job Description ...

ABOUT US:LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our ...

with Product, Design, and Data Science. This is a full stack role with a leaning towards frontend. Our frontend stack includes VueJS, TypeScript, and OpenAPI; our backend stack is primarily Java (Spring Boot) and Python, with some legacy Go. We're constantly evolving how we build and deliver software … frontend, and Java (Spring Boot) or Python services on the backend, that handle streaming responses, dynamic visualisations, and complex state management. Integrate seamlessly: Use OpenAPI contracts to build reliable integrations across survey-building, audience, and insights services — including where Compass (https://www.askattest.com/compass) powers AI-assisted ...

We’re working with a fast-growing technology business using AI and large-scale data to transform how organisations conduct due diligence and risk research. This is an opportunity for a technically confident Product Manager ...