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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer Id72455 - **Company:** Agileengine - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon Cloudfront, User Authentication, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Cloud Engineering, Code Coverage, Code Generation, Code Review, Data Governance, Software Debugging, Software Design Patterns, Programming Tools, Amazon DynamoDB, Middleware, Github, Mobile Application Software, Node.Js, OAuth, Payment Gateway, Openid Connect, Akamai, Secure Coding, Software Engineering, SQL Databases, Systems Integration, TypeScript, Datadog, Modern Ui, GitHub Copilot, ReactJS, Large Language Models, AWS Lambda, Backend, Git, Cloudformation, Vue.js, Containerization, AngularJS, Solid Principles, Graphql, React Native, Functional Programming, Api Design, Cloudwatch, Api Gateway, Restful APIs, Amazon Simple Queue Service (SQS), Terraform, Es2015, Webhooks, Software Version Control, Dynatrace, Serverless Computing, Docker, Microservices - **Published:** August 9, 2026 - **Apply:** https://www.buscojobs.com.es/senior-software-engineer-id-72455-en-madrid-ID-365811054 ## About the Role 4+ years of backend development experience; Demonstrated experience building and operating RESTful and/or GraphQL APIs at scale; Strong proficiency in one or more of: JavaScript/TypeScript (Node.js, Java, or C#); Experience with serverless architectures on AWS (Lambda, API Gateway, DynamoDB, SQS/SNS); Demonstrated experience building and operating RESTful and/or GraphQL APIs at scale; Experience with CI/CD pipelines and source control workflows (Git, GitHub Actions, Azure DevOps); Familiarity with Infrastructure as Code (Terraform or CloudFormation); Solid understanding of integration patterns: event?driven architecture, webhooks, async messaging, and pub/sub; Experience integrating with third?party platforms and vendor APIs (e.g., delivery aggregators, POS systems, loyalty platforms, or similar ecosystem partners); Ability to translate ambiguous business requirements into clear technical specifications; Collaborative mindset with a willingness to give and receive candid code review feedback; Strong debugging, root?cause analysis, and production incident management skills. Upper?intermediate English level. NICE TO HAVES DoorDash, Uber Eats, or similar delivery integrations; Payment platform integrations; Restaurant, retail, or QSR experience; Amazon Cognito expertise; Experience with multi?region AWS deployments and global traffic management (Akamai, CloudFront); Familiarity with identity and authentication patterns: OAuth 2.0, OpenID Connect, AWS Cognito; Hands?on experience with observability platforms (Dynatrace, Datadog, CloudWatch); Experience prompting, fine?tuning, or orchestrating LLMs/AI agents as part of a software delivery workflow; Experience in QSR, retail, or e?commerce domains; AWS Certified Developer - Associate or higher; Exposure to React Native or cross?platform mobile app integration patterns., 6+ years of professional software development experience Strong expertise in . NET (C#) and SQL, with a focus on backend/API development Commercial experience with modern UI frameworks, such as React, Angular and VueJs Experience with GitHub Copilot or similar AI developer tools Solid knowledge of TypeScript and modern JavaScript (ES6+) AI?empowered mindset: proven experience optimizing enterprise?level solutions with AI?assisted engineering Experience designing and consuming REST and/or GraphQL APIs Experience writing and maintaining automated tests (unit, integration, and/or UI) Strong understanding of Clean Code, SOLID principles, and design patterns Experience working on distributed, cloud?based systems Excellent debugging skills and strong root?cause analysis capabilities Understanding of secure coding principles and best practices Fluency in English Experience with cloud native technologies Experience delivering containerized solutions (Docker) #J-*****-Ljbffr ## Description Descripción del trabajo Job DescriptionAgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.WHY JOIN USIf you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!ABOUT THE ROLEWe are looking for a Senior Backend Engineer to design and build scalable middleware services powering digital ordering, payments, loyalty, and third?party integrations across a major consumer platform.You will develop serverless applications using AWS Lambda and API Gateway, build Node.js/TypeScript microservices, design event?driven architectures with SQS/SNS, and implement infrastructure as code with Terraform.The role includes active use of AI?assisted development tools as a core part of the daily engineering workflow.WHAT YOU WILL DODevelop serverless applications using AWS Lambda and API Gateway;Build and maintain Node.js/TypeScript microservices;Design event?driven architectures using SQS/SNS;Build infrastructure as code using Terraform;Leverage AI?assisted development tools (GitHub Copilot, Claude, and similar) as a core part of daily engineering work - from code generation and refactoring to test coverage and documentation.Champion AI tooling adoption across the team;Create integrations with delivery providers and payment platforms;Collaborate with business stakeholders and product teams to understand functional and technical requirements; translate those into scalable, maintainable architecture and implementation plans;Conduct constructive code reviews and provide technical design guidance to peers and junior engineers, raising the overall quality and consistency of team output;Enforce data governance, security policies, and compliance standards throughout the software development lifecycle;Implement secure authentication and identity flows using Amazon Cognito.MUST HAVES4+ years of backend development experience;Demonstrated experience building and operating RESTful and/or GraphQL APIs at scale;Strong proficiency in one or more of: JavaScript/TypeScript (Node.js, Java, or C#);Experience with serverless architectures on AWS (Lambda, API Gateway, DynamoDB, SQS/SNS);Demonstrated experience building and operating RESTful and/or GraphQL APIs at scale;Experience with CI/CD pipelines and source control workflows (Git, GitHub Actions, Azure DevOps);Familiarity with Infrastructure as Code (Terraform or CloudFormation);Solid understanding of integration patterns: event?driven architecture, webhooks, async messaging, and pub/sub;Experience integrating with third?party platforms and vendor APIs (e.g., delivery aggregators, POS systems, loyalty platforms, or similar ecosystem partners);Ability to translate ambiguous business requirements into clear technical specifications;Collaborative mindset with a willingness to give and receive candid code review feedback;Strong debugging, root?cause analysis, and production incident management skills.Upper?intermediate English level.NICE TO HAVESDoorDash, Uber Eats, or similar delivery integrations;Payment platform integrations;Restaurant, retail, or QSR experience;Amazon Cognito expertise;Experience with multi?region AWS deployments and global traffic management (Akamai, CloudFront);Familiarity with identity and authentication patterns: OAuth 2.0, OpenID Connect, AWS Cognito;Hands?on experience with observability platforms (Dynatrace, Datadog, CloudWatch);Experience prompting, fine?tuning, or orchestrating LLMs/AI agents as part of a software delivery workflow;Experience in QSR, retail, or e?commerce domains;AWS Certified Developer - Associate or higher;Exposure to React Native or cross?platform mobile app integration patterns.PERKS AND BENEFITSProfessional growth: Mentorship, TechTalks, and personalized growth roadmaps.Competitive compensation: Competitive USD?based compensation and budgets for education, fitness, and team activities.Exciting projects: Modern solutions with Fortune 500 and top product companies.Flextime: Flexible schedule with remote and office options.Requirements6+ years of professional software development experienceStrong expertise in .NET (C#) and SQL, with a focus on backend/API developmentCommercial experience with modern UI frameworks, such as React, Angular and VueJsExperience with GitHub Copilot or similar AI developer toolsSolid knowledge of TypeScript and modern JavaScript (ES6+)AI?empowered mindset: proven experience optimizing enterprise?level solutions with AI?assisted engineeringExperience designing and consuming REST and/or GraphQL APIsExperience writing and maintaining automated tests (unit, integration, and/or UI)Strong understanding of Clean Code, SOLID principles, and design patternsExperience working on distributed, cloud?based systemsExcellent debugging skills and strong root?cause analysis capabilitiesUnderstanding of secure coding principles and best practicesFluency in EnglishExperience with cloud native technologiesExperience delivering containerized solutions (Docker)#J-*****-Ljbffr ## Related Videos - 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