Backend Engineer This role is for one of the Weekday's clientsSalary range: Rs 13000000 - Rs 16000000 (ie INR 130-160 LPA)Min Experience: 5 yearsLocation: LondonJobType: full-timeWe are seeking a Senior Backend Engineer to build and scale intelligent backend systems powering AI-driven applications. This role focuses on designing robust APIs, developing scalable microservices, and integrating advanced AI capabilities such as Large Language Models (LLMs) and agentic workflows into production environments.You will play a key role in shaping backend architecture, enabling seamless communication between systems, and ensuring high performance, reliability, and scalability. Working closely with product, AI, and engineering teams, you will help translate complex requirements into efficient, production-ready solutions.Key ResponsibilitiesDesign and develop scalable backend systems using Python and modern frameworks like FastAPIBuild and maintain RESTful APIs and microservices architecture for high-performance applicationsIntegrate and operationalize LLMs and agentic AI workflows into backend systemsCollaborate with AI/ML teams to deploy and optimize intelligent features in productionWork with databases such as PostgreSQL, MongoDB, and Redis for efficient data handlingEnsure system reliability, performance optimization, and scalability across servicesContribute to architectural decisions and evaluate trade-offs for backend designCollaborate with cross-functional teams to deliver end-to-end product featuresTroubleshoot, debug, and resolve complex production issuesFollow best practices in code quality, testing, and deploymentWhat Makes You a Great Fit5–9 years of backend development experience with strong proficiency in PythonHands-on experience with FastAPI or similar frameworks (Flask/Django)Practical experience working with Large Language Models (LLMs) and AI-driven systemsUnderstanding of agentic AI concepts or autonomous workflowsStrong knowledge of REST APIs, microservices architecture, and distributed systemsExperience with databases like PostgreSQL, MongoDB, and RedisFamiliarity with cloud platforms such as AWS, GCP, or AzureStrong problem-solving and debugging skillsAbility to design scalable, maintainable, and high-performance backend systemsEffective communication and collaboration skills in cross-functional environments This role is for one of the Weekday's clientsSalary range: Rs 13000000 - Rs 16000000 (ie INR 130-160 LPA)Min Experience: 5 yearsLocation: LondonJobType: full-timeWe are seeking a Senior Backend Engineer to build and scale intelligent backend systems powering AI-driven applications. This role focuses on designing robust APIs, developing scalable microservices, and integrating advanced AI capabilities such as Large Language Models (LLMs) and agentic workflows into production environments.You will play a key role in shaping backend architecture, enabling seamless communication between systems, and ensuring high performance, reliability, and scalability. Working closely with product, AI, and engineering teams, you will help translate complex requirements into efficient, production-ready solutions. Key ResponsibilitiesDesign and develop scalable backend systems using Python and modern frameworks like FastAPIBuild and maintain RESTful APIs and microservices architecture for high-performance applicationsIntegrate and operationalize LLMs and agentic AI workflows into backend systemsCollaborate with AI/ML teams to deploy and optimize intelligent features in productionWork with databases such as PostgreSQL, MongoDB, and Redis for efficient data handlingEnsure system reliability, performance optimization, and scalability across servicesContribute to architectural decisions and evaluate trade-offs for backend designCollaborate with cross-functional teams to deliver end-to-end product featuresTroubleshoot, debug, and resolve complex production issuesFollow best practices in code quality, testing, and deploymentWhat Makes You a Great Fit5–9 years of backend development experience with strong proficiency in PythonHands-on experience with FastAPI or similar frameworks (Flask/Django)Practical experience working with Large Language Models (LLMs) and AI-driven systemsUnderstanding of agentic AI concepts or autonomous workflowsStrong knowledge of REST APIs, microservices architecture, and distributed systemsExperience with databases like PostgreSQL, MongoDB, and RedisFamiliarity with cloud platforms such as AWS, GCP, or AzureStrong problem-solving and debugging skillsAbility to design scalable, maintainable, and high-performance backend systemsEffective communication and collaboration skills in cross-functional environments