301 to 325 of 346 API Design Jobs in England

programming experience.* Technology/programming skills in Rust, C++, Java, KDB, Python, SQL* Extensive experience in messaging and data serialization technologies, market data processing, API design, latency optimization, code testing, build and deployment tools* Experience in taking ownership of existing technologies, building new ones, and performing technology migrations. ...

trading spaceExtensive programming experience.Technology/programming skills in Rust, C++, Java, KDB, Python, SQLExtensive experience in messaging and data serialization technologies, market data processing, API design, latency optimization, code testing, build and deployment toolsExperience in taking ownership of existing technologies, building new ones, and performing technology migrations.Working knowledge ...

responsible for writing production-grade code and guiding engineers through mentorship. You should have a strong background in JavaScript and TypeScript, comfortable with API designs and relational databases. This hybrid position demands both technical and managerial skills, emphasizing the development of a healthy engineering culture. #J-18808-Ljbffr ...

enabled technology stack, developing prototypes and guiding client adoption. You will collaborate with the Lab team and financial services clients, research emerging tools, and design practical solutions that connect data, tools and user intent to automate workflows. The role demands strong engineering and consulting experience, with emphasis on architecture … API design, #J-18808-Ljbffr ...

deployment, observability, and reliability. Raise engineering excellence and resilience: best practices and automation across code, testing, microservices/APIs, performance, and infrastructure; secure-by-design with threat modeling, logging/monitoring, incident playbooks, and disaster recovery. Partner with product, design, and operations to translate outcomes into measurable technical … building distributed systems and microservices in agile environments (Scrum/Kanban). Deep Java experience (Spring), architectural patterns for scalable, observable, testable systems; strong API design. Strong DevOps practices: CI/CD (e.g., GitLab), automated testing (JUnit/Spock), code reviews, telemetry/observability (Splunk, AppDynamics), containers (Docker ...

concept and production-grade AI solutions. Architect, develop and deploy AI-native applications leveraging Large Language Models (LLMs), agentic systems and multimodal AI technologies. Design, build and orchestrate intelligent agent workflows using the Gemini Enterprise Agent Platform, Agent Development Kit (ADK) and Agent2Agent (A2A) protocol. Develop and implement Retrieval … using modern front-end technologies such as React, Next.js and Svelte. Build robust backend services, APIs and orchestration frameworks to support AI-powered applications. Design and manage data architectures across SQL, NoSQL and vector database environments. Collaborate with business stakeholders to identify, prioritise and deliver AI use cases that ...

performance, reliability, and user trust are critical. Build and maintain iOS applications using Swift and SwiftUI. Integrate AI-powered features through backend APIs. Design UX patterns for AI interactions, including loading states, streaming responses, retries, and fallbacks. Optimize performance, memory usage, and battery efficiency. Capture user signals and feedback … support AI evaluation and iteration. Collaborate closely with backend and ML engineers on API design and system behavior. Maintain high App Store quality, stability, and production reliability. Requirements: 3+ years of iOS development experience using Swift. Hands-on experience integrating AI-powered features into mobile apps. Strong understanding ...

global technology company in London seeking a Lead Staff Software Engineer to own backend systems for a high-traffic data platform. You will design, build, and operate core services, mentor engineers, and collaborate across teams to drive technical direction in a fast-paced environment. You will lead a growing … engineering effort, run 1:1s, and participate in hiring to grow the London team. Strong experience with C#/.NET, SQL, and API design is highly valued. #J-18808-Ljbffr ...

Product team to deliver highly efficient systems. You would also: Collaborate with product managers, architects, and other stakeholders to define technical requirements and design, develop, and maintain backend systems that power our access control and security solutions. Evaluate , develop, and implement AI-powered tools and solutions to enhance products … services. Stay current with emerging AI technologies and provide technical leadership on the adoption of AI best practices across the team and participate in API design discussions and contribute to the evolution of our platform. Lead and assist a team of backend engineers, fostering a collaborative, high-performing ...

Python Engineer to build next-generation autonomous AI agents for a major global financial services hub. You will move beyond basic chatbots to design multi-step reasoning workflows and enterprise-grade Python APIs that let AI interact directly with real-world software tools.Key ResponsibilitiesAgentic Orchestration: Build stateful AI workflows … retrieval systems (RAG).What You NeedStrong Python software development experience.Hands-on experience with GenAI frameworks (LangGraph, LangChain, LlamaIndex, or CrewAI).Proven background in API design, tool-calling, and LLM orchestration.Interested? Apply today with your updated CV to set up an initial call!Randstad Technologies Ltd is a leading ...

from ten to one hundred! The role Are you someone who loves finding solutions to problems using technology? Do you enjoy working across product design, tech and commercial to bring these solutions to life? Are you self-motivated, able to take responsibility for scoping out, communicating and delivering feature … Partnering closely with customers and internal teams to support complex integrations, including leading technical discovery sessions and integration calls Developing a deep understanding of API design, payloads, schemas, permissions, and access logic to ensure scalable, secure, and intuitive platform experiences Assessing technical feasibility of new product initiatives, balancing ...

engineering leadership to influence technical architecture decisions, ensuring solutions are scalable, maintainable, and aligned with platform direction. Ensure delivery quality through close collaboration with design, engineering, and QA - holding a high bar for what ships. Launch & Growth Own the end-to-end launch of significant features and capabilities, partnering … card scheme rules (Visa, Mastercard), authorisation and settlement flows, interchange, and regulatory frameworks. Strong technical fluency - ability to engage with engineering teams on architecture, API design, and system integration decisions. Demonstrated experience mentoring or coaching other product managers. Excellent stakeholder management skills with experience influencing senior leaders ...

quality and accessibility. This hybrid role requires at least 7+ years of software experience, proficiency in Go or Python, and strong data modeling and API design skills. #J-18808-Ljbffr ...

integrating with external solutions. Collaboration with frontend, growth and sales teams is key to delivering customer-focused innovations. We value a strong backend foundation, API design skills, and knowledge of cloud infrastructure, data structures, and security fundamentals. #J-18808-Ljbffr ...

Conveo.ai is seeking a Senior Product Engineer to own end-to-end internal tooling—Slack/React interfaces, API design, and AI-powered features. You’ll shape product direction, partner with cross-functional teams, and drive technical strategy across the stack, including LLM integrations. You’ll work ...

Basel III/IV, CCAR, counterparty limit monitoring, or live exposure calculations. Core Tech Stack: Expert-level C#/.NET (.NET Core), scalable API design, and solid OOP/architectural principles. Data & High Performance: Strong SQL skills, experience handling large data volumes, and working with event-driven/ ...

experiences. The ideal candidate should have over 12 years of experience in Android application development and must possess a strong command of Kotlin and API design. This position offers an opportunity to work within a vibrant team focused on innovative solutions in the travel industry. #J-18808-Ljbffr ...

something you are passionate about.The Java Scala developer will be involved in:Web application greenfield developmentWeb analytics & business intelligenceMachine learning, risk modelling, fraud detection.API design and provisionIntegration patterns & messagingHybrid cloud infrastructureJavaScript application developmentWeb application performanceScalabilityExceptional knowledge of low-high level systems coupled with true programming ability.Java Scala Developers MUST ...

technology organisation delivering mission-critical systems that support national security and help protect the UK. Working as part of empowered DevOps teams, you'll design, develop, deploy and maintain cloud-based applications and services, collaborating with engineers and end users to solve complex technical challenges. The Role … opportunity to work with cutting-edge cloud technologies, contribute to innovative solutions and continue developing your skills within a supportive engineering community. Key Responsibilities •Design, develop and maintain secure cloud solutions using AWS. •Build and support applications and services across AWS environments. •Work within agile DevOps teams to deliver ...

infrastructure in a hybrid work environment. The ideal candidate will have a strong background in distributed systems, particularly with Rust, and possess skills in API design and implementation. Join Neara to help shape new solutions in the financial sector, ensuring reliability and compliance while working with innovative technologies. ...

time, AI-native platform for in-store grocery experiences. We seek a senior backend-focused engineer who can own end-to-end delivery from API design to production, partnering with Product and Platform teams to ship complex, customer-facing features at pace. You will work in a fast ...

SeniorSoftware Engineer II, you will work with a passionate team that delivers scalable, reliable, and innovative solutions that accelerate scientific discovery. Key responsibilities:Design and implement graph-based search services. Develop applications using Java, Spring Boot, Spring, GraphQL, and GraphQL Federation. Integrate with databases, web services, or AWS services … systems or search platforms.Proven track record building scalable backend systems and APIs.Strong expertise in Java and the Spring Boot ecosystem.Hands-on experience with GraphQL API/REST APIs design.Solid background in cloud-native architectures with AWS and Kubernetes (EKS). An advocate of best practices for rapid development ...

Engineer on the AI team, you'll own significant parts of the Agentic stack that power Elliptic's copilot. You'll lead the design of agentic workflows, drive technical decisions on how we build and operate LLM-based features, and help raise the engineering standard across the team. … lead to take complex problems from ambiguity to shipped product, and you'll mentor more junior engineers as the team grows.What you will do:Design and build agentic workflows and AI-powered features that power Elliptic's copilot, using LLM frameworks such as LangChain or LangGraph.Lead the design ...

party integrations. You will work closely with Product Owners, Frontend Developers, DevOps, and QA to ensure smooth, efficient, and secure platform operations. Key Responsibilities Design and implement backend systems capable of handling thousands of concurrent player connections across multiple services. Develop scalable, modular microservices to support game logic, session … management, and operational services. API Development. Ensure low‐latency data processing to support live casino game engines. Collaborate with the product team to build new features, improve system performance, and support business requirements. Work with relational databases such as PostgreSQL and Oracle to ensure reliable and efficient data operations. ...

detection and scanning tools.As a Software Engineer, you will take ownership of designing, developing and operating these systems across service backends, cryptographic libraries, API integrations and hardened infrastructure. The software you build must meet the highest standards of correctness, auditability and availability.You will work on both new capabilities … following skills and experience:Essential:Strong experience delivering production-quality software, ideally using C#/.NETStrong understanding of software architecture, concurrency, distributed systems and API designExperience building or operating security-sensitive systems where correctness and auditability are criticalSound engineering judgement, balancing security, performance, reliability and deliveryClear communication skills ...