AWS Backend Developer (Node.js / NestJS)

Description

Job Summary: Q Digital System is seeking an AWS Backend Developer (Node.js / NestJS) for a high-complexity project, developing backend services and evolving cloud-based solutions on AWS, participating in the full development lifecycle. Key Highlights: 1. Backend service development and evolution using Node.js and NestJS. 2. Contribution to the design and operation of AWS components. 3. Participation in solutions involving complex cloud integrations. **AWS Backend Developer (Node.js / NestJS)** **Q Digital System** is looking for an **AWS Backend Developer (Node.js / NestJS)** to join a high-complexity technology project focused on backend service development, system integration, and evolution of cloud-based solutions on AWS. We seek a professional with solid hands-on experience in **Node.js and NestJS**, as well as practical experience in **AWS, microservices architecture, API integration, asynchronous processing, and cloud deployments**, capable of participating across the entire development lifecycle: analysis, design, development, testing, deployment, and continuous improvement. **What will be your challenge?** You will be responsible for the development, maintenance, and evolution of backend services built on **Node.js \+ NestJS**, and for contributing to the design and operation of **AWS** components oriented toward availability, resilience, security, and asynchronous processing. You will participate in solutions requiring integration among cloud services, databases, and enterprise/legacy systems, working under sound software architecture and development practices. **Key Responsibilities** * Design, develop, maintain, and optimize **APIs and backend services using Node.js and NestJS**. * Analyze requirements, estimate complexity, and identify technical risks. * Apply **Clean Architecture, SOLID, Clean Code, and design patterns**. * Design integrations via **REST APIs and decoupled services**. * Implement asynchronous and event-driven processes using **AWS** services. * Develop and maintain components on **AWS ECS Fargate, Lambda, SQS, Step Functions, and EventBridge**. * Work with **RDS MySQL and Supabase PostgreSQL**, performing query optimization and performance analysis. * Apply **Security by Design**, secure credential management (**Secrets Manager**), and vulnerability prevention. * Implement caching mechanisms using **Redis**. * Participate in **Code Reviews**, unit testing, and integration testing. * Participate in **CI/CD** pipelines and deployments to QA, UAT, and Production environments, including **ECS Fargate**. * Define and maintain infrastructure-as-code using **Terraform or AWS CDK**. * Implement security best practices using **IAM, Secrets Manager, SSM Parameter Store, WAF, and encryption**. * Configure and use **CloudWatch** for monitoring, metrics, logs, and alerts. * Participate in diagnosing and resolving incidents and performance issues. * Propose architectural, resilience, performance, and cloud cost improvements. * Document technical solutions, configurations, and operational procedures. **Mandatory Requirements** * **More than 4 years of experience** in enterprise software development. * Solid and demonstrable experience with **Node.js and NestJS**. * Experience integrating and developing systems using **REST APIs (legacy) and backend services**. * Experience applying **SOLID, Clean Code, and Clean Architecture**. * Experience with design patterns such as **Repository, Factory, Singleton**, among others. * Practical experience consuming **AWS** services, primarily: * ECS Fargate * Lambda * SQS * Step Functions * EventBridge * API Gateway * ALB * S3 * Secrets Manager * Experience with **MySQL and PostgreSQL**. * Experience in **SQL query optimization and performance analysis**. * Experience in unit, integration, and automated testing. * Practical experience with **Redis / caching**. * Experience with **Git, Pull Requests, and conflict resolution**. * Experience implementing or participating in **CI/CD** processes. * Experience in **application security and Security by Design**. * Experience with **ECS Fargate, API Gateway, ALB (advanced proficiency)**. * Experience with **Lambda, Step Functions, EventBridge**. * Experience with **SQS, SNS, and event-driven patterns**. * Experience with **Terraform or AWS CDK**. * **Knowledge of IAM and application security**. * **Experience with CloudWatch, CloudWatch Synthetics, logging, metrics, and monitoring**. * Experience with **IAM, Secrets Manager, SSM Parameter Store**. * Experience with **AWS WAF and perimeter security**. * Experience with **Site-to-Site VPN / hybrid networks**. * Experience with **RDS MySQL, ElastiCache/Redis**. * **Ability to diagnose technical and performance issues**. **Additional Assets (Preferred but Not Required)** * **Experience in telecommunications companies**. * **Experience in technological modernization or legacy system migration**. * **Experience with event-driven architecture (Event-Driven Architecture)**. * **Experience with SNS**. * **Experience with Site-to-Site VPN / hybrid architectures**. * **Experience with CloudWatch Synthetics**. * **Knowledge of Supabase**. * **Experience with RabbitMQ or Kong**. * **Knowledge of Docker/Kubernetes**. * **Experience in AWS cost optimization / FinOps**. **What Are We Looking For In You?** Beyond your technical expertise, we seek professionals who stand out for: * **Strong analytical and problem-solving skills**. * **Logical thinking and holistic solution vision**. * **Quality and code maintainability orientation**. * **Rigor in idempotency, traceability, and data consistency processes**. * **Ability to work with critical systems and complex integrations**. * **Effective communication with development, DevOps, infrastructure, and functional teams**. * **Proactivity and autonomy in identifying improvement opportunities**. * **Commitment to solution security, performance, and availability**. * **Mindset of continuous learning.Modality and Conditions** **Modality:** Hybrid – 3 days onsite and 2 days remote **Working Hours:** Monday to Friday, 9:00 a.m. to 6:00 p.m. **Location:** San Isidro, Lima, Peru **Why Take on This Challenge?** You’ll have the opportunity to work in a high-complexity technology environment, directly contributing to the development of **Backend \+ AWS Cloud** solutions, integration architecture, resilience, and enterprise system modernization. If you are a professional who enjoys solving complex problems, building scalable solutions, and working with modern cloud technologies, **we want to meet you**. **Apply now and become part of this technological challenge.** Salary: S/.4,800.00 \- S/.5,500.00 per month Workplace: Hybrid in San Isidro, Lima