Full Stack Engineer (React, TypeScript, AWS)

Connex Technology delivers Silicon Valley-grade engineering talent to help organizations build practical, scalable solutions that drive measurable business impact. With a high project success rate, strong efficiency gains, and very low attrition, the company offers a stable environment for engineers who want to work on impactful, real-world solutions.

Experience: 5 years

Employment Type: Full-Time

Level: Senior / Experienced Individual Contributor

About the Role:

We are looking for an experienced Full Stack Engineer to take existing React application designs and turn them into a secure, scalable, production-ready platform.

You will own the engineering lifecycle end to end, from building backend APIs and designing databases to implementing authentication, deploying infrastructure on AWS, and maintaining the application in production.

The product includes clinician-facing and patient-facing applications, requiring strong attention to data integrity, security, reliability, and performance.

This is a hands-on engineering role for someone who enjoys building products from the ground up, making technical decisions, and taking ownership of what they ship.

Key Responsibilities:

•⁠ ⁠Transform existing React designs into fully functional applications connected to production APIs and databases.

•⁠ ⁠Build and maintain frontend applications using React and TypeScript.

•⁠ ⁠Design, develop, and deploy backend APIs using Node.js or Python.

•⁠ ⁠Design relational PostgreSQL databases, including schemas, migrations, indexing, and query optimization.

•⁠ ⁠Implement secure authentication, authorization, and role-based or fine-grained access controls.

•⁠ ⁠Build and manage AWS infrastructure using Infrastructure as Code, preferably AWS CDK.

•⁠ ⁠Establish CI/CD pipelines across testing and production environments.

•⁠ ⁠Implement secure secrets management, logging, monitoring, and production troubleshooting.

•⁠ ⁠Take ownership of application performance, reliability, security, and ongoing maintenance.

•⁠ ⁠Collaborate with a small product team to make technical decisions and deliver features quickly.

Required Qualifications

•⁠ ⁠5 years of professional software engineering experience.

•⁠ ⁠Strong production experience with React, TypeScript, and Node.js or Python.

•⁠ ⁠Demonstrated experience independently building and shipping full-stack web applications.

•⁠ ⁠Strong PostgreSQL experience, including relational modeling, migrations, and performance optimization.

•⁠ ⁠Hands-on AWS deployment experience, including Infrastructure as Code and CI/CD.

•⁠ ⁠Experience implementing authentication using OIDC/JWT and secure API authorization.

•⁠ ⁠Experience taking at least one product from initial development through production launch and ongoing support.

•⁠ ⁠Ability to work independently, troubleshoot production issues, and take responsibility for engineering outcomes.

Nice to Have

•⁠ ⁠Experience developing software for healthcare, clinical, or other data-sensitive environments.

•⁠ ⁠Experience deploying AI/ML models as production services.

•⁠ ⁠Familiarity with Amazon SageMaker or Amazon Bedrock.

•⁠ ⁠Experience working in startups or as an early engineering team member.