Senior/Lead Full Stack Engineer Id79143

Agileengine; Mar del Plata; On-site; ARS 181,395,000 - 226,744,000; Full time

Benefits offered by this job

Mentorship

Tech Talks

Growth roadmaps

USD-based pay

Fortune 500 projects

Flextime

Job summary

AgileEngine is seeking a Senior Full Stack Engineer to build and maintain cloud-native applications using React on the frontend and Node.js and C# on the backend. You will design, develop, and optimize data solutions across SQL, PostgreSQL, and DynamoDB, with a strong focus on performance, scalability, and reliability.

This 6-month project engages in serverless and containerized AWS services, Terraform, and GitLab CI/CD, with automated testing using Jest and Playwright.

Qualifications

• 5+ years of proven experience as a Full Stack Engineer.
• Strong proficiency in React; solid experience with Node.js and C#.
• Deep expertise in SQL with PostgreSQL and DynamoDB; performance tuning.
• Hands-on experience with core AWS services (SQS, Lambda, ECS, CloudFront, EventBridge).
• Experience with Terraform and GitLab CI/CD; Jest and Playwright.

Responsibilities

• Build and maintain full-stack apps using React, Node.js, and C#.
• Design, develop, and optimize SQL queries and data models across PostgreSQL and DynamoDB.
• Improve database performance, scalability, and reliability.
• Develop serverless and containerized AWS services (Lambda, ECS, SQS, EventBridge).
• Collaborate with cross-functional teams to deliver scalable solutions.
• Write automated tests with Jest and Playwright; maintain CI/CD pipelines with Terraform and GitLab.

Skills

React

Node.js

C#

SQL

PostgreSQL

DynamoDB

AWS

Terraform

GitLab CI/CD

Jest

Playwright

English

Tools

Terraform

GitLab CI/CD

AWS

Job description

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 Full Stack Engineer to build and maintain cloud-native applications using React on the frontend and Node.js and C# on the backend. You will design, develop, and optimize data solutions across SQL, PostgreSQL, and DynamoDB, with a strong focus on database performance, scalability, and reliability. You will also build serverless and containerized services across AWS, including Lambda, ECS, SQS, and EventBridge, write automated tests with Jest and Playwright, and maintain infrastructure and CI/CD pipelines using Terraform and GitLab. This is a 6-month project engagement.

WHAT YOU WILL DO

• Build and maintain full-stack applications using React, Node.js, and C#.
• Design, develop, and optimize SQL queries, data models, and database interactions across PostgreSQL and DynamoDB.
• Troubleshoot and improve database performance, scalability, and reliability.
• Build serverless and containerized AWS services using Lambda, ECS, SQS, EventBridge, and related AWS services.
• Collaborate with cross-functional teams to deliver scalable, high-quality solutions.
• Write automated tests using Jest and Playwright to ensure application quality.
• Maintain infrastructure and CI/CD pipelines using Terraform and GitLab.

MUST HAVES

• 5+ years of proven experience as a Full Stack Engineer.
• Strong proficiency in React.
• Solid experience with both Node.js and C#.
• Deep expertise in SQL, including advanced querying, joins, aggregations, CTEs, window functions, query optimization, and performance tuning.
• Strong hands‑on experience with PostgreSQL and AWS DynamoDB.
• Experience designing data models, troubleshooting database issues, and working with database‑intensive applications.
• Deep, hands‑on experience with core AWS services, including SQS, Lambda, ECS, CloudFront, ALB, and EventBridge.
• Experience with Terraform and GitLab CI/CD.
• Experience with Jest and Playwright.
• Excellent problem‑solving, analytical, and communication skills, with the ability to collaborate effectively with technical leads and product managers.
• Upper-intermediate English level.

NICE TO HAVES

• Docker and Kubernetes.
• Microservices architecture and serverless computing patterns.
• Experience with database migrations or large-scale data modernization projects.
• Other front-end frameworks (Angular, Vue.js).
• Financial services background.
• Performance profiling, monitoring, and observability tools.

PERKS AND BENEFITS

• Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.
• Competitive compensation: USD-based pay with education, fitness, and team activity budgets.
• Exciting projects: Modern solutions with Fortune 500 and top product companies.
• Flextime: Flexible schedule with remote and office options.

Requirements

Experience: 5+ years of proven experience as a Full Stack Engineer. Front-end: Strong proficiency in React. Backend: Solid experience with both Node.js and C#. Databases (High Priority): Deep expertise in SQL, including advanced querying, joins, aggregations, CTEs, window functions, query optimization, and performance tuning. Strong hands‑on experience with PostgreSQL and AWS DynamoDB. Experience designing data models, troubleshooting database issues, and working with database‑intensive applications. Cloud (AWS): Deep, hands‑on experience with core AWS services, including SQS, Lambda, ECS, CloudFront, ALB, and EventBridge. DevOps/IaC: Experience with Terraform and GitLab CI/CD. Testing: Experience with Jest and Playwright (preferred, but secondary to strong database expertise). Excellent problem‑solving, analytical, and communication skills, with the ability to collaborate effectively with technical leads and product managers.