201 to 225 of 452 API Design Jobs

AI Software Engineer

Hiring Organisation
Infosec
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
level role focuses on building intelligent AI agents that can plan, reason, operate security tooling and identify exploitable vulnerabilities within controlled environments. Key Responsibilities: Design, build and deploy AI agents that automate penetration testing, including planning, tool use and reasoning over security findings Develop sandboxed cyber-lab and range … infrastructure using containers and Kubernetes Deliver AI features from initial design through to production, including evaluations, guardrails and monitoring Improve agent performance through prompt engineering, tool orchestration, evaluation and token and cost optimisation Integrate security tools and enable agents to operate safely within defined scopes Work closely with security ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
software and hardware control stack —from architecture to implementation—ensuring reliability, performance, ease of use, and seamless operation of our Liquid Brain system. Design and build user interfaces and backend services (Next.js, Django, Postgres) that make interacting with complex hardware systems and multimodal data analysis tasks simple, intuitive … care deeply about both the what and the how. Proven experience in atleast a few of the following areas - designing scalable services, cloud infrastructure, API design and implementation, database design, and front‐end frameworks Curiosity for scientific workflows, new technologies, and solving problems at the intersection ...

Lead UI Developer – Single Dealer Platform (TypeScript / RxJS / React)

Location
Greater London, England, United Kingdom
shape requirements into pragmatic, iterative delivery plans. Own the front end architecture (React + TypeScript + RxJS), including state management, observables, and data flow design for live market data (WebSockets/Server Sent Events). Design and implement modular, testable, and reusable components and design system primitives … senior/lead role. WebSockets, Server-Sent Events, WebRTC or other high performance bidirectional data streaming experience. GraphQL, Protobuf, Flatbuffers or other schema-driven API design tools. Strong RxJS (or equivalent observables experience) and reactive architecture in production systems. Proven experience with real time UIs (market data streams ...

Software Engineer, Macro Quant Analytics Technology

Location
Greater London, England, United Kingdom
ideas, and satisfy your own intellectual curiosity; all while delivering real business impact for our multi-billion-dollar global business. What you’ll do Design, build, and extend core C# analytics services, APIs, and libraries used across the Macro business. Develop and operate high-performance distributed systems with strong … guarantees around correctness, latency, and scalability. Build real-time and historical analytics services supporting pricing, risk, and global market data workflows. Design and maintain time-aware (historical and real-time) data models and services, ensuring consistency across analytics use cases. Develop and integrate derived data pipelines and datasets used ...

Senior Fullstack Developer React, Azure, .NET, AI

Location
United Kingdom
backlog refinement, and sprint reviews/retrospectives Take part in regular product showcases, presenting progress and demos to senior stakeholders Raise risks, blockers, or design questions early, working with the Product Manager and technical lead to resolve them Contribute to technical decisions and help refine the technical design … Proven experience building custom React/.Net applications Solid experience with the Azure tech stack Confident working across front end and back end, including API design and integration Hands-on experience with, or strong aptitude for, AI-assisted development tools (e.g. GitHub Copilot, Codex) as part of daily ...

VodafoneThree - Solution Architect

Location
Newbury, England, United Kingdom
documenting solution designs, including key non-functional requirements such as security, performance, resilience and maintainability.You’ll possess a strong understanding of REST APIs and API design best practices.You’ll have working knowledge of event-driven architecture and related design principles.You’ll be able to communicate complex technical ...

Software Engineer III - Data Engineering- Corporate Know Your Customer

Hiring Organisation
Hackajob Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
software development and data engineering Support a culture of innovation, inclusion, and continuous improvement Required qualifications, capabilities, and skills Hands-on experience delivering system design, application development, testing, and operational stability at enterprise scale Expertise in Python and/or PySpark Knowledge of software application development and technical processes … with depth in disciplines such as cloud, AI/ML, or data engineering Experience in large-scale data processing, microservices, API design, Kafka, Redis, MemCached, observability tools (Dynatrace, Splunk, Grafana), and orchestration frameworks (Airflow, Temporal) Advanced working knowledge of relational and NoSQL databases, vector stores, data lake architectures ...

Lead Software Data Engineer - Corporate Know Your Customer

Hiring Organisation
Hackajob Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
software development and data engineering Support a culture of innovation, inclusion, and continuous improvement Required qualifications, capabilities, and skills Hands-on experience delivering system design, application development, testing, and operational stability at enterprise scale Expertise in Python and/or PySpark Advanced knowledge of software application development and technical … processes, with depth in disciplines such as cloud, AI/ML, or data engineering Experience in large-scale data processing, microservices, API design, Kafka, Redis, MemCached, observability tools (Dynatrace, Splunk, Grafana), and orchestration frameworks (Airflow, Temporal) Advanced working knowledge of relational and NoSQL databases, vector stores, data lake ...

Frontend Software Engineer

Location
Greater London, England, United Kingdom
capabilities, improving the foundations of the product, and helping define how users interact with complex energy system models. You will work closely with product, design, backend engineers, AI engineers, and energy specialists to build intuitive experiences over large datasets and complex modelling workflows. From data-heavy interfaces and interactive … make a visible impact in a small team. Responsibilities Frontend Development Deliver frontend features from implementation through to release, working closely with product and design to build high-quality user experiences. Build and deliver frontend capabilities for Scenario Builder using React and TypeScript. Implement complex UI patterns including data ...

Corporate KYC Principle Software Engineer - Executive Director

Hiring Organisation
Hackajob Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
practices and standards, and delivering high-impact software that scales. Job responsibilities Architects and implements complex, scalable engineering frameworks and solutions using modern software design principles Develops secure, high-quality production code for data-intensive applications and platforms, and reviews and mentors other engineers Creates durable, reusable software frameworks … development and automation capabilities, to improve the value realized by automation at scale. Required qualifications, capabilities, and skills Hands-on practical experience delivering system design, application development, testing, and operational stability at enterprise scale Hands-on experience designing and deploying production AI/ML systems, including LLM-based applications ...

Senior Fullstack Engineer: Build Scalable Microservices

Location
England, United Kingdom
hiring a Senior Fullstack Engineer for a growing engineering team. You'll design and build scalable, secure backend services in Python, alongside modern React frontends — with real ownership across the stack, from API design to production performance. What you'll do Build and maintain scalable microservices (REST … gRPC, GraphQL) and API endpoints in Python (FastAPI/Flask) Develop and maintain React frontends, including state management with Redux or React Query Optimise SQL/NoSQL databases (PostgreSQL, MySQL, MongoDB) for performance and reliability Implement authentication/authorisation (JWT, OAuth2, OpenID Connect) and monitor production performance What ...

Java Technical Software Engineering Lead - Vice President

Location
Greater London, England, United Kingdom
strategic leadership capabilities to deliver robust, scalable data solutions that support our organization's analytical and operational requirements. Responsibilities Lead the end-to-end design, development, and maintenance of our enterprise‐grade Data Lake platform, with particular emphasis on optimizing data ingestion workflows and acquisition methodologies Collaborate closely across … lineage Establish and maintain documentation standards, best practices, and governance frameworks for data acquisition and quality assurance processes Lead architectural discussions and to technical design decisions Skills, experience, qualifications and knowledge required Experience: Experienced Java Software Engineer with extensive professional development experience and a proven track record of delivering ...

Full Stack Engineer

Location
United Kingdom
maintain high-performing backend services in PHP with clean domain boundaries, specifically managing billing and application management systems. Craft responsive frontend user experiences: Design and implement polished, accessible user interfaces using React, TypeScript, and Node.js. Ensure production reliability & test coverage: Safeguard core functionality by writing comprehensive … development depth: 3+ years of professional software engineering experience, with strong proficiency in backend PHP development and working with large-scale production codebases. Database & API design skills: Solid grasp of SQL and relational databases, alongside hands‐on experience designing, building, and consuming REST APIs and system‐to‐system ...

Senior Lead Software Engineer - Java / Python - Risk Technology Data Strategy

Location
Greater London, England, United Kingdom
continuous improvement. As a Senior Lead Software Engineer at JPMorgan Chase within the Data Platform & Strategy team within Corporate Risk Technology, you will design, build, and enhance advanced data engineering solutions. You will play a pivotal role in delivering secure, stable, and scalable technology products that support our business … multiple technical areas. Your work will help shape the team culture and the impact of our technology solutions. Job Responsibilities: Execute creative software solutions, design, development, and technical troubleshooting to solve complex problems Develop secure, high-quality production code for data-intensive applications and review code written by others ...

Software Engineer - Core IP Security

Location
Greater London, England, United Kingdom
skills and experience. Essential: Strong experience delivering production-quality software, ideally using C#/.NET Strong understanding of software architecture, concurrency, distributed systems and API design Experience building or operating security-sensitive systems where correctness and auditability are critical Sound engineering judgement, balancing security, performance, reliability and delivery ...

Cloud-Native Senior Software Engineer (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
Instil Software Ltd is seeking experienced Senior Software Engineers to design, build, and operate scalable cloud-native solutions using Java, Python, C#/.NET and TypeScript. You’ll influence architecture, drive API design, and guide production deployments across AWS, Azure, or GCP. You’ll work with cross ...

Lead Software Engineering - Java/Python - Risk Data Platform & Strategy

Location
Greater London, England, United Kingdom
creativity and continuous improvement. As a Lead Software Engineer at JPMorgan Chase within the Data Platform & Strategy team within Corporate Risk Technology, you will design, build, and enhance advanced data engineering solutions. You will play a pivotal role in delivering secure, stable, and scalable technology products that support … multiple technical areas. Your work will help shape the team culture and the impact of our technology solutions. Job Responsibilities: Execute creative software solutions, design, development, and technical troubleshooting to solve complex problems Develop secure, high-quality production code for data-intensive applications and review code written by others ...

Lead Software Engineering - Java/Python - Risk Data Platform & Strategy

Location
Greater London, England, United Kingdom
creativity and continuous improvement. As a Lead Software Engineer at JPMorgan Chase within the Data Platform & Strategy team within Corporate Risk Technology, you will design, build, and enhance advanced data engineering solutions. You will play a pivotal role in delivering secure, stable, and scalable technology products that support … multiple technical areas. Your work will help shape the team culture and the impact of our technology solutions. Job Responsibilities: Execute creative software solutions, design, development, and technical troubleshooting to solve complex problems Develop secure, high-quality production code for data-intensive applications and review code written by others ...

Software Engineer, AI (Level determined by experience)

Location
United Kingdom
FedRAMP Moderate Authorized environment. For more information, please visit www.synack.com. We are looking for a Senior Software Engineer (AI), where you'll design and ship AI agents that plan, reason, drive security tooling and surface exploitable vulnerabilities, running autonomously inside sandboxed environments. It's a hands‐on senior role … from ideation through production, including evals, guardrails and monitoring. Improve how our agents work: prompting, tool orchestration, evaluation, and cost. Lead code reviews and design sessions, and help the engineers around you grow. Work closely with our security researchers to translate how they hack into how our agents operate. ...

Software Engineer London HQ

Location
Greater London, England, United Kingdom
Location: Soho, London (onsite 4 days a week) Salary: Based on experience Must hold right to work in the UK. Main responsibilities Development and Design: Write clean, efficient, and maintainable code using TypeScript, JavaScript, Node.js, and React. Design and implement robust applications and services to meet predefined requirements. … practices, such as Git, CI/CD pipelines, automated testing frameworks (e.g., Jest, Mocha), and containerisation technologies (e.g., Docker). Knowledge of RESTful API design and development, and familiarity with web services architecture. Ability to write efficient, secure, well-documented, and clean JavaScript code. Familiarity with database technologies ...

ERP Ecosystem Architect

Location
Greater London, England, United Kingdom
driving alignment across various teams with different priorities, ways of working to achieve solution standardisation. You sit at the intersection of business strategy, solution design, and delivery execution, shaping how D365 integrates and evolves globally. You work closely with integration architects, solution architects, developers, engineering/product teams … event‐driven patterns. Review and approve specifications, customisations, and integrations that impact end to end process flows across multiple systems. Facilitate cross‐system design alignment with solution owners (POS, WMS, EDI, middleware, data platform, identity/security), ensuring decisions are understood, documented, and governable. Support environment and build strategy ...

Lead Solution Architect

Location
Leeds, England, United Kingdom
Infrastructure and Data, you will provide the technical direction needed to create a more consistent, connected and resilient technology landscape. This is a technical design and architectural governance role. The Lead Solution Architect will influence how solutions are delivered but will not be responsible for project delivery, software development … operational support. What You’ll Be Doing As Lead Solution Architect, you will: Lead the design of enterprise solutions across applications, integrations, cloud platforms and data services Translate business requirements into clear solution architectures and technical designs Assess solution options and recommend approaches that balance cost, complexity, scalability ...

Java Full Stack Developer

Location
Greater London, England, United Kingdom
Spring Cloud, and related ecosystem technologies. Experience developing modern user interfaces using React and/or Angular . Deep understanding of Microservices Architecture , including design, development, deployment, and support of distributed systems. Experience with Cloud-Native Development principles and cloud platforms (AWS, Azure, and/or Google Cloud Platform … . Strong knowledge of API design , system integration, and event-driven architectures. Experience in Performance Engineering , application optimization, monitoring, troubleshooting, and capacity planning. This client will only accept workers operating via a PAYE engagement model. AMS’s payroll service is in partnership with Giant, we have worked with ...

Staff Software Engineer (Lab Technology) #4907

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 ...

Laravel Developer

Location
Greater London, England, United Kingdom
typical day might look like: Develop and maintain Laravel applications with clean, efficient code Integrate third-party services and APIs into web applications Design and implement RESTful APIs and microservices Collaborate with cross-functional teams to define and implement new features Write comprehensive tests and ensure code quality Responsibilities … Develop and maintain Laravel applications with clean, efficient code Integrate third-party services and APIs into web applications Design and implement RESTful APIs and microservices Collaborate with cross-functional teams to define and implement new features Write comprehensive tests and ensure code quality Optimize application performance and scalability Stay ...