176 to 200 of 346 API Design Jobs in England

Lead ETRM Solutions Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Risk, and Settlements. Responsibilities Define and own the architecture for applications and services across the end‐to‐end commodities trade lifecycle. Lead the design of integrations between ETRM platforms and surrounding systems, establishing scalable patterns and standards utilizing technologies such as Java, messaging frameworks, and enterprise data platforms. Architect … monitoring, alerting, automated controls, reconciliation frameworks, and reprocessing capabilities. Govern architecture decisions with a focus on performance, scalability, maintainability, security, and cost efficiency. Lead design reviews and provide technical direction to engineering teams, promoting strong engineering standards, reusable patterns, and consistent integration approaches. Drive adoption of modern SDLC ...

Software Engineer, Macro Quant Analytics Technology

Hiring Organisation
Point72
Location
London, UK
models and services, ensuring consistency across analytics use cases.Develop and integrate derived data pipelines and datasets used in research, backtesting, and production analytics.Contribute to API design, data modeling, and system architecture for shared analytics platforms.Integrate analytics services with batch and streaming data pipelines across research and trading workflows.Partner … investment requirements into robust platform capabilities.Contribute to system reliability through testing, monitoring, and operational best practices.Participate in code reviews and technical discussions to improve design, performance, and maintainability.What’s REQUIRED3–10 years of experience developing production-quality backend software in C#, with a strong focus on distributed systems ...

UI Senior Lead Software Engineer - Commodities

Hiring Organisation
JP Morgan Chase
Location
London, UK
high-performing, inclusive team culture. This role emphasizes engineering excellence, operational readiness, and secure, compliant delivery in a fast-paced global environment.Job ResponsibilitiesLead the design and delivery of user interface capabilities across Execute, from discovery to production supportSet front-end technical direction, including architecture, standards, performance, and testing strategyPartner … technical leadership in setting standards, leading designs, and directly managing or mentoring small teams of mid-level engineersSolid software engineering fundamentals, including OO/design patterns, debugging, and documentationFamiliarity with agentic development approaches across the software development lifecycleStrong communication and people skills, with the ability to work effectively ...

UI Senior Lead Software Engineer - Commodities

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
inclusive team culture. This role emphasizes engineering excellence, operational readiness, and secure, compliant delivery in a fast‐paced global environment. Job Responsibilities Lead the design and delivery of user interface capabilities across Execute, from discovery to production support Set front‐end technical direction, including architecture, standards, performance, and testing … leadership in setting standards, leading designs, and directly managing or mentoring small teams of mid‐level engineers Solid software engineering fundamentals, including OO/design patterns, debugging, and documentation Familiarity with agentic development approaches across the software development lifecycle Strong communication and people skills, with the ability to work ...

Staff Software Engineer (Lab Technology) #4907

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
working out of our London office, you will be based at 210 Euston Road, London, NW1 2DA, in line with company needs. Responsibilites Design and implement software systems that turn raw clinical, lab, and operational data into reliable, analysis-ready datasets Partner with scientists, clinicians, lab operations, and data … understand data generation, transformation, and usage needs Develop services, libraries, data models, and workflow components that enforce data integrity, access control, and compliance by design Navigate complex data requirements such as schema evolution, blinding, consent, and privacy compliance Collaborate on cross-functional initiatives involving data quality, testing strategy, monitoring ...

UI Senior Lead Software Engineer - Commodities

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
inclusive team culture. This role emphasizes engineering excellence, operational readiness, and secure, compliant delivery in a fast-paced global environment. Job Responsibilities Lead the design and delivery of user interface capabilities across Execute, from discovery to production support Set front-end technical direction, including architecture, standards, performance, and testing … leadership in setting standards, leading designs, and directly managing or mentoring small teams of mid-level engineers Solid software engineering fundamentals, including OO/design patterns, debugging, and documentation Familiarity with agentic development approaches across the software development lifecycle Strong communication and people skills, with the ability to work ...

Senior Backend Python Engineer

Hiring Organisation
Interact Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
What were looking for: Hands-on experience running real production workloads on AWS not just deploying to it Strong Postgres/SQL skills: schema design, query tuning, migrations Solid API design chops: clear contracts, versioning, backwards compatibility Python-first mindset (FastAPI or similar) Redis experience: caching patterns ...

Software Engineer, Scale

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
regulatory, and technical domains—areas where no single existing team has full coverage, like tax systems, compliance‐driven flows, or monetization tools. Solutions Architecture: Design integrations for enterprise prospects by translating their business requirements into technical solutions. Your architectural decisions directly influence deal outcomes—from enabling multi‐million dollar … technical stakeholders. Make pragmatic decisions on when to optimize for performance vs. velocity based on business impact. Thrive in cross‐functional environments spanning Product, Design, Compliance, and Sales. Design for scale, maintainability, and production excellence. Bonus if you have Fintech, payments, or regulated industry experience. High‐scale performance ...

AI Platform Engineer

Hiring Organisation
The Portfolio Group
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£80000 - £100000/annum
Join a high growth international SaaS business as an AI Platform Engineer, where you will design, build, and operate the AI platform that underpins our clinets conversational assistant and wider AI initiatives. You will take responsibility for the runtime, infrastructure, and operational foundations underpinning our RAG pipelines, LLM orchestration … tolerance, caching, and autoscaling. Maintain CI/CD pipelines through GitHub and Azure DevOps. Automate embedding generation and knowledge base synchronisation. Embed secure-by-design principles, including IAM, encryption, and safe data flows. Mature governance practices, including versioning, audit logging, and compliance. What You'll Bring Proven enterprise delivery ...

Senior Backend Platform Developer, Contact Center Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Backend Platform Developer to build modern services for the company's contact center systems. This is a software engineering role first: where you will design APIs, serverless services, data flows, observability tooling, and AI-enabled workflows that support our customer and agent experience. The contact center is the domain … platforms, and using AI-assisted engineering tools to move quickly without sacrificing quality. What You'll Do: Production-grade Node.js services on AWS Lambda, API Gateway, and event-driven serverless patterns. Secure APIs and integrations across internal systems, customer data, and third-party platforms. Technical patterns, implementation standards ...

Principal Software Engineer

Hiring Organisation
Searchability (UK) Ltd
Location
Liverpool, Merseyside, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
platform and influence engineering strategy Work within a senior, AI-first engineering environment KEY POINTS Principal-level position with significant technical ownership Leading the design and development of a modern platform rebuild Strong focus on Node.js, TypeScript, React and cloud technologies Opportunity to shape engineering standards, architecture … role where you'll help shape the future of a modern, large-scale platform whilst remaining hands-on with development. You'll lead the design and delivery of scalable backend services, APIs, integrations and data flows, whilst providing architectural guidance across the wider engineering team. Although the role ...

Senior Python Developer - Agentic AI Systems

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
customer-facing solutions. The Role This role focuses on building autonomous, reasoning-driven AI systems. We are not looking for someone to build simple API wrappers. You will take complete ownership of designing and deploying sophisticated agentic architectures that drive real value for the business. Core Stack Python: Expert … level AI Frameworks: LangChain, CrewAI, AutoGPT-style frameworks Vector Databases: Pinecone, Milvus, Weaviate Architecture: LLM orchestration and tool-calling pipelines API Design: REST and GraphQL What Sets This Role Apart Deep Reasoning: Deep understanding of LLM reasoning loops. Self-Correction: Building self-correcting agent architectures. Scale: Prompt engineering ...

Lead Technical Architect Java AWS Agentic AI

Hiring Organisation
Client Server
Location
London, UK
sophisticated technology.Your role:As the Lead Technical Architect you will collaborate with Team Leads across the business to support them with technical architecture and design on large, complex, cloud based distributed systems, ensuring best practice and a cohesive structure. The tech stack is based on modern Java … understanding of agentic AI development tools and how to implement them and drive change within the businessYou have a strong knowledge of microservices architecture, API design, enterprise integration patterns, AWS cloud architectureYou have a good understanding of modern software development practices e.g. TDD, CI/CD, DevOps, SecOps ...

Network Automation Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
automation frameworks, APIs and tooling that make our network scalable, self-service and production-ready. This is a hands‐on role where you will design and ship systems that power large-scale compute and research environments. Key responsibilities of the role include: Building and evolving automation frameworks for network … ambiguity and take ownership Comfortable working in collaborative, fast‐paced engineering teams Desirable: Experience with event‐driven architectures, such as Kafka and RabbitMQ API design or platform engineering experience Knowledge of service discovery, secrets management or policy‐as‐code Understanding of large‐scale data centre networking, for example ...

Senior ML Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
reliable, and low‐latency ML solutions. In addition to technical expertise, this job requires strong collaboration skills. What you’ll own Feature Development & Delivery: Design, implement, and deploy new features and enhancements to ML products, collaborating with Product and ML Research teams to refine requirements. Technical Ownership and Stewardship … years as an ML‐focused software engineer, ML Engineer, MLOps Engineer, or similar, with hands‐on production experience Proven expertise with ML model deployment, API design, and integration into production environments Strong Python programming and relevant ML/data libraries Experience with containerization, orchestration, and AWS cloud services ...

Senior Backend Python Engineer | Flexible Work

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
professional experience in backend software development primarily using Python Strong experience with Python web frameworks such as Django or Flask Proficient with RESTful API design and implementation Experience with database systems (SQL and NoSQL) Familiarity with containerization technologies like Docker and orchestration tools Experience working with cloud platforms ...

Contract AI Software Engineer - DV Cleared

Hiring Organisation
NSD
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - £650 per day
Experience with AWS or Azure Familiarity with Docker and Kubernetes Experience working in secure or highly regulated environments Strong understanding of software architecture and API design IT WOULD BE NICE FOR THE AI SOFTWARE ENGINEER TO HAVE. Experience with RAG pipelines and vector databases Knowledge of MLOps tooling ...

Software Engineer (AI)

Hiring Organisation
Searchability NS&D
Location
London Area, United Kingdom
Experience with AWS or Azure Familiarity with Docker and Kubernetes Experience working in secure or highly regulated environments Strong understanding of software architecture and API design IT WOULD BE NICE FOR THE AI SOFTWARE ENGINEER TO HAVE.... • Experience with RAG pipelines and vector databases • Knowledge of MLOps tooling ...

Lead Software Engineer (UI) — Digital Markets Execution Technology (DMET), Execute

Hiring Organisation
JP Morgan Chase
Location
London, UK
high-signal workflows at scale. This role emphasizes engineering excellence, operational readiness, and secure, compliant delivery in a fast-paced global environment.Job ResponsibilitiesLead the design and delivery of user interface capabilities across Execute, from discovery to production supportSet front-end technical direction, including architecture, standards, performance, and testing strategyPartner … delivering real-time or data-intensive user experiencesDemonstrated technical leadership in setting standards, leading designs, and mentoring teamsSolid software engineering fundamentals, including OO/design patterns, debugging, and documentationFamiliarity with agentic development approaches across the software development lifecycleStrong communication skills and ability to work effectively in global, cross-functional ...

Lead Software Engineer (UI) â Digital Markets Execution Technology (DMET), Execute

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
workflows at scale. This role emphasizes engineering excellence, operational readiness, and secure, compliant delivery in a fast‐paced global environment. Job Responsibilities Lead the design and delivery of user interface capabilities across Execute, from discovery to production support Set front-end technical direction, including architecture, standards, performance, and testing … time or data‐intensive user experiences Demonstrated technical leadership in setting standards, leading designs, and mentoring teams Solid software engineering fundamentals, including OO/design patterns, debugging, and documentation Familiarity with agentic development approaches across the software development lifecycle Strong communication skills and ability to work effectively in global ...

Principal Engineer – GPU Driver & System Software

Hiring Organisation
Jobleads-UK
Location
Cambridgeshire and Peterborough, England, United Kingdom
Principal Engineer – GPU Driver & System Software Category Chip Design Location Cambourne Experience More than 8 Years Work Expe. Education Master's Degree Job Description MediaTek Incorporated is a global fabless semiconductor company that enables nearly 2 billion connected devices a year. We are a market leader in developing innovative … gaming, and its Wi‐Fi 6 chipsets are powering the latest networking equipment for faster computing experiences. With market leader position of MediaTek SoC design, MediaTek GPU IP team is committed for industry‐leading, feature rich and PPA competitive GFX IP optimization, customization and development. The GFX IP will ...

Application Architect

Hiring Organisation
Fourth
Location
London, UK
architecture of key strategic initiatives across Fourth. Working as an embedded member of delivery teams, you will provide hands-on architectural leadership, helping engineers design, build and evolve scalable, maintainable and resilient software solutions.You will apply Fourth's application architecture standards, patterns and engineering principles, whilecontributing to their ongoing … practical delivery experience.· Produce architectural designs, decision records, and technical documentation that clearly communicate solution intent and support long-term maintainability.· Participate in architecture, design, and code reviews, providing constructive feedback and helping ensure consistency with established architectural principles.· Collaborate with business, product, engineering, and fellow architects to understand ...

Lead Engineer, Risk Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
clean, maintainable, performant applications; promote best practices, and collaborate closely with our quantitative and product teams. What You’ll Do High-Performance JVM Engineering: Design and build high-quality, scalable and performant low/zero-GC JVM services and APIs Technical Translation & Risk Modeling: Understand risk models & decompose complex … experience in architecting highly performant, low-latency systems. Testing Methodologies: In-depth knowledge of testing methodologies, including TDD, back testing and stress testing Software Design Excellence: Well versed in Agile methodologies, DRY, Clean Code, API design and micro-services. Technical Ecosystem: Experience in a full range ...

Senior Software Engineer: Build Scalable, Secure Systems

Hiring Organisation
Jobleads-UK
Location
Wimbledon, England, United Kingdom
software engineer to contribute across the full SDLC with Engineering, DevOps, and Product. You will turn business requirements into robust, secure technical solutions and design scalable, high-performing applications and services. The role requires hands-on TypeScript (React, AWS CDK), API design, and a strong focus ...

Junior Solutions Architect

Hiring Organisation
Proactive Appointments
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
their career in Solution Architecture or is ready to transition from Business Analysis or Integration Developmen t into a role where you'll help design innovative enterprise integration solutions for a diverse client base. Working alongside experienced Solution Architects and delivery teams, you'll gain valuable exposure to enterprise … integration projects while developing your expertise in solution design, architecture best practices, and modern iPaaS technologies. This is a fantastic opportunity for someone who enjoys combining technical knowledge with business engagement and wants to develop into a senior architecture role. Key Responsibilities Support the design and documentation ...