376 to 400 of 466 Permanent API Design Jobs

with Meraki APIs and other infrastructure systems to surface network and sensor insights Run proofs of concept for new in-restaurant technology such as kiosks or next-generation POS Design scalable configuration frameworks to support new hardware and future rollouts Contribute to incident response and ensure system reliability Partner with Operations and suppliers to enable smooth rollouts and minimise … and PowerShell for Windows-based automation and device integration Expert-level skills in TypeScript and Node.js Infrastructure as Code ( Terraform ) and CI/CD pipeline experience Solid understanding of API design and distributed system architecture Experience building modern UIs with Next.js or React Knowledge of networked devices , hardware APIs , and device provisioning Familiarity with Windows device management and More ❯

execute against both short-term and long-term roadmaps. Work in a variety of languages and technologies, including Ruby, Java and Typescript. Provide hands-on technical leadership (architecture/design, vision/direction/requirements setting, and incident response processes) for team members. Work with leaders across the company to create and drive toward the longer term vision of … are a bonus, not a requirement. Minimum requirements 10+ years of technical production experience 5+ years in a strategic technical leadership role Experience leading engineering team(s) working on API design, abstractions, frameworks, or client libraries (e.g. building internal or external developer products). Proven track record of delivering pragmatic solutions that accelerate business growth Ability to adjust More ❯

in tight cycles. This is an early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight … guardrails). Essential Requirements 3-6+ years building production backends/services , with shipped work and clear ownership. Strong Python (FastAPI) and database skills ( PostgreSQL/MongoDB ); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. Comfortable with Redis (caching/sessions) and common queue/messaging More ❯

in tight cycles. This is an early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight … guardrails). Essential Requirements 3-6+ years building production backends/services , with shipped work and clear ownership. Strong Python (FastAPI) and database skills ( PostgreSQL/MongoDB ); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. Comfortable with Redis (caching/sessions) and common queue/messaging More ❯

in tight cycles. This is an early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight … guardrails). Essential Requirements 3-6+ years building production backends/services , with shipped work and clear ownership. Strong Python (FastAPI) and database skills ( PostgreSQL/MongoDB ); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. Comfortable with Redis (caching/sessions) and common queue/messaging More ❯

in tight cycles. This is an early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight … guardrails). Essential Requirements 3-6+ years building production backends/services , with shipped work and clear ownership. Strong Python (FastAPI) and database skills ( PostgreSQL/MongoDB ); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. Comfortable with Redis (caching/sessions) and common queue/messaging More ❯

in tight cycles. This is an early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight … guardrails). Essential Requirements 3-6+ years building production backends/services , with shipped work and clear ownership. Strong Python (FastAPI) and database skills ( PostgreSQL/MongoDB ); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. Comfortable with Redis (caching/sessions) and common queue/messaging More ❯

Manchester) Up to £160,000 + Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency ( Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance … and performance standards What You'll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge of More ❯

Manchester) Up to £160,000 + Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You’ll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

Manchester) Up to £160,000 + Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You’ll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

Manchester) Up to £160,000 + Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You’ll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

Manchester) Up to £160,000 + Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You’ll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

Manchester) Up to £160,000 + Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You’ll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

Manchester) Up to £160,000 + benefits/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40s) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You'll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

Manchester)Up to £160,000 + benefits/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience … are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security … compliance, and performance standards What You'll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge More ❯

a regular on-site presence (2 days onsite). Key Skills: - 5 years professional experience with TypeScript, JavaScript, and Node.js - Experience with frameworks such as React and NextJS, and API Design - Excellent communication skills with stakeholders and team members - Solid understanding of web development fundamentals and performance optimisation techniques - Ability to design, develop, test, deploy, and continuously More ❯

cloud services is advantageous. Microservices and Distributed Systems : Deep understanding of microservices architecture and distributed systems, including knowledge of Back-end For Front-end (BFF) architecture (a plus). API Design and Development : Solid experience in designing and developing RESTful APIs, ensuring they are scalable, secure, and efficient. More ❯

cloud services is advantageous. Microservices and Distributed Systems : Deep understanding of microservices architecture and distributed systems, including knowledge of Back-end For Front-end (BFF) architecture (a plus). API Design and Development : Solid experience in designing and developing RESTful APIs, ensuring they are scalable, secure, and efficient. More ❯

cloud services is advantageous. Microservices and Distributed Systems : Deep understanding of microservices architecture and distributed systems, including knowledge of Back-end For Front-end (BFF) architecture (a plus). API Design and Development : Solid experience in designing and developing RESTful APIs, ensuring they are scalable, secure, and efficient. More ❯

cloud services is advantageous. Microservices and Distributed Systems : Deep understanding of microservices architecture and distributed systems, including knowledge of Back-end For Front-end (BFF) architecture (a plus). API Design and Development : Solid experience in designing and developing RESTful APIs, ensuring they are scalable, secure, and efficient. More ❯

cloud services is advantageous. Microservices and Distributed Systems : Deep understanding of microservices architecture and distributed systems, including knowledge of Back-end For Front-end (BFF) architecture (a plus). API Design and Development : Solid experience in designing and developing RESTful APIs, ensuring they are scalable, secure, and efficient. More ❯

building something that lasts. What will you be doing: Own critical parts of the UI and its architecture, ensuring performance, usability, and resilience. Bring strong views on frontend patterns, API design, and how the frontend and backend fit together (they currently use Python, REST, GraphQL, microservices). What They Are Looking For: Proven expertise in JavaScript and React More ❯

building something that lasts. What will you be doing: Own critical parts of the UI and its architecture, ensuring performance, usability, and resilience. Bring strong views on frontend patterns, API design, and how the frontend and backend fit together (they currently use Python, REST, GraphQL, microservices). What They Are Looking For: Proven expertise in JavaScript and React More ❯

building something that lasts. What will you be doing: Own critical parts of the UI and its architecture, ensuring performance, usability, and resilience. Bring strong views on frontend patterns, API design, and how the frontend and backend fit together (they currently use Python, REST, GraphQL, microservices). What They Are Looking For: Proven expertise in JavaScript and React More ❯

building something that lasts. What will you be doing: Own critical parts of the UI and its architecture, ensuring performance, usability, and resilience. Bring strong views on frontend patterns, API design, and how the frontend and backend fit together (they currently use Python, REST, GraphQL, microservices). What They Are Looking For: Proven expertise in JavaScript and React More ❯