126 to 144 of 144 API Design Jobs

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 Responsibilities Agentic Orchestration: Build stateful … workflows using LangGraph or LangChain . API & Backend Engineering: Write robust Python backends enabling LLMs to execute Function Calling and tool-use. Context & Memory: Optimize prompt engineering, context windows, and retrieval systems (RAG). What You Need Strong Python software development experience. Hands-on experience with GenAI frameworks ( LangGraph ...

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 ...

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 ...

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 ...

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/ ...

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/ ...

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 ...

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 ...

Back EndHybrid – 2 days per week in the officeJava, PostgreSQL, APIWe are looking for an experienced Back End Developer with excellent Java, PostgreSQL and API skills due to software development moving from an outsourced model to in-house.Working alongside the development team you will:Be highly involved with knowledge … deployment configuration.Design and implement new back-end features, enhancements, and bug fixes in Java, following agreed coding standards and architectural principles.PostgreSQL data model – schema design, migration management (Flyway/Liquibase), indexing strategy, and query optimisation.Design, document, and maintain RESTful and/or GraphQL APIs, ensuring consistency, versioning, and thorough ...

distribution by working across third party platform distributors and directly with client distribution platforms. 2. Product Discovery & Requirements Definition Lead structured product discovery and design sessions with clients, business, technology, operations. Translate business and client needs into clear product requirements, technical specifications, and prioritised backlog items. Own product documentation … distribution architectures, including APIs, event/batch delivery, entitlement models, and access controls. Demonstrated ability to work effectively with senior engineers and architects on design and tradeoff decisions. Experience defining API/FTP/Web distribution requirements. Preferred:Knowledge of the index business preferred. Experience with agentic solution ...

Role:We are seeking an experienced Full-Stack Engineer (5-7 years) to join a leading global financial institution in London. You will design, build, and maintain high-performance, cloud-native applications supporting critical financial operations.Key Responsibilities:Design and deliver end-to-end applications using Java (Spring Boot … stack software development experience.Core proficiency in Java, Spring Boot, and ReactJS.Hands-on experience with AWS, Kubernetes, and Kafka.Strong grasp of multithreading, microservices architecture, and API design.Financial services, Investment Banking, or Risk domain experience is highly advantageous.Ability to work from the London office 3 days per week.How to Apply:Submit ...

Role: We are seeking an experienced Full-Stack Engineer (5-7 years) to join a leading global financial institution in London. You will design, build, and maintain high-performance, cloud-native applications supporting critical financial operations. Key Responsibilities: Design and deliver end-to-end applications using Java (Spring … proficiency in Java, Spring Boot, and ReactJS . Hands-on experience with AWS, Kubernetes, and Kafka . Strong grasp of multithreading, microservices architecture, and API design. Financial services, Investment Banking, or Risk domain experience is highly advantageous. Ability to work from the London office 3 days per week . ...

regions with a wide range of strategies.As a Senior Software Engineer, you will work closely with a talented team of engineers to collaboratively design and develop robust software solutions essential for facilitating global trading operations. This includes systems such as trading systems, exchange connectivity solutions, monitoring systems, and integration … professional experience in C++ , Rust, Java and PythonDemonstrated expertise in network communication, including multicast and WebSockets.Proficiency in inter-process messaging, micro-service architectures, and API design.Familiarity with Functional Programming and Immutable Design.Experience with trading systems is desirableExcellent oral and written communication skills.Bachelor's degree in Computer Science or equivalent.Join ...

powered capabilities, from natural language input to smart suggestions, that make creating workflows faster and more intuitive.You'll collaborate across engineering, product, and design to bring generative AI and LLM-based enhancements into the core user experience. You'll improve existing AI integrations, develop new ones, and shape … those insights into our roadmapRequirements5+ years of experience building web-based products, ideally in B2B SaaS startupsStrong fullstack development skills with TypeScript, Node.js, and API designExperience shipping AI-powered features in production with LLM APIs (OpenAI, Anthropic, etc.) and understanding of how to translate machine intelligence into user value. ...

requires clear ownership of data, well-defined integration patterns, and controlled transitions between systems. The Senior Data & Integration Architect provides the architectural leadership to design these flows, define boundaries, and ensure that the service can operate reliably throughout this evolution.Role PurposeThe Senior Data & Integration Architect is responsible for defining … platform teamsEnsure architectural consistency across domains and delivery streamsRequired ExperienceSenior-level experience in solution architecture with strong focus on:Data architectureSystem integration and API designComplex application landscapesExperience in large-scale transformation programs, such as:Service transitionsCarve-outs or M&A environmentsMulti-platform coexistence scenariosSolid understanding of:Data ownership ...

drive architectural decisions will be essential. Responsibilities Define and maintain the end-to-end solution architecture across the rewards portal and wider Salesforce ecosystem. Design integration patterns across Salesforce, customer identity, APIs, mobile applications and enterprise platforms. Translate business and technical requirements into scalable, resilient and maintainable solution designs. … Define the architecture for SSO, customer identity integration and associated authentication journeys. Review and assure API designs, data flows, integration components and system dependencies. Support the design of mobile and in-app webview customer experiences. Produce architecture artefacts, solution options, design decisions and technical roadmaps. Coordinate suppliers ...

users manage their card programsPartner with engineering to bring new Stripe Issuing product solutions to the UK and European marketsCollaborate with other Stripe teams (design, legal, risk, compliance, engineering, etc.) early in the product development lifecycle and jointly shape product plans that lead with delightful and helpful user experiencesOwn … roadmap and go-to-market, with product marketing, of EMEA Stripe IssuingAct as the voice of the user in product and API designs, gathering direct feedback from customersEnsure we're building in a scalable, performant wayWho you areWe're looking for someone who:Brings 8+ years of experience ...