Senior Software Engineer ID72455

AgileEngine•Downey, CA

3d•Hybrid

About The Position

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. 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.

Requirements

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

Responsibilities

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