Descripción del trabajo Job Description

AgileEngine is an Inc. 5000 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 US

If 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 ROLE

We 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 DO

- Develop 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 HAVES

- 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 general 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 BENEFITS

- Professional 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.

Requirements

- 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)

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📌 Senior Software Engineer Id72455 (Madrid)
🏢 AgileEngine
📍 Madrid