MERN Stack Developer

Ethereum Technologies LLC; Dallas (TX); On-site; USD 77,000 - 110,000; Full time

Job summary

Ethereum Technologies in Dallas, TX is seeking a MERN Stack Developer to design, develop, and maintain scalable full-stack applications using MongoDB, Express.js, React.js, and Node.js. The ideal candidate will have strong backend expertise in Node.js, Express.js, and TypeScript, and hands-on experience building RESTful APIs, microservices, and cloud-native applications.

The role requires AWS services, database optimization, application security, and modern software development practices.

Qualifications

• 6+ years in full-stack development with MongoDB/Express/React/Node.
• Strong experience designing RESTful APIs and microservices.
• Proficient in AWS services and cloud-native apps.
• Solid knowledge of JS/TS and software security practices.
• Hands-on with Git workflows and CI/CD pipelines.

Responsibilities

• Design, develop, and maintain full-stack apps using MERN stack.
• Build backend services and RESTful APIs with Node.js/TypeScript.
• Create microservices and event-driven architectures.
• Optimize MongoDB schemas, queries, and indexing.
• Integrate frontend with backend systems and APIs.
• Develop cloud-native apps on AWS (Lambda, API Gateway, ECS/EKS).
• Implement authentication with OAuth/JWT and secure APIs.
• Improve performance, scalability, and reliability through optimization.
• Develop automated tests with Jest/Mocha and support CI/CD pipelines.
• Containerize with Docker and deploy via Kubernetes.

Skills

Full-stack development

RESTful APIs

Node.js

Express.js

React.js

TypeScript

AWS

Microservices

Security best practices

CI/CD

Education

Bachelor's degree in CS/IT/SE

Tools

MongoDB

AWS Lambda

API Gateway

ECS/EKS

S3

DynamoDB

Kafka

Git/GitHub

Jest/Mocha

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title: MERN Stack Developer

Location: Dallas,TX

Duration: 12 Months + Extension

Bill Rate: $68/hour (C2C)

Job Type: W-2, 1099, C2C

Client: To Be Discussed Later

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Summary

The MERN Stack Developer will design, develop, and maintain scalable, secure, and high-performance full-stack applications using MongoDB, Express.js, React.js, and Node.js. The ideal candidate will have strong backend development expertise in Node.js, Express.js, and TypeScript, along with hands-on experience building RESTful APIs, microservices, and cloud-native applications. This role requires experience with AWS services, database optimization, application security, and modern software development practices.

Key Responsibilities

• Design, develop, and maintain full-stack web applications using MongoDB, Express.js, React.js, and Node.js
• Build scalable backend services and RESTful APIs using Node.js, Express.js, and TypeScript
• Design and implement microservices and event-driven application architectures
• Develop and optimize MongoDB schemas, aggregation pipelines, indexing strategies, and database queries
• Integrate frontend applications with backend services, third-party APIs, and enterprise systems
• Build and maintain cloud-native applications using AWS services, including Lambda, API Gateway, ECS/EKS, EC2, S3, and DynamoDB
• Implement asynchronous processing and messaging workflows using SQS, SNS, or Kafka
• Implement authentication, authorization, and application security using OAuth, JWT, and secure API practices
• Improve application performance, scalability, availability, and reliability through code and database optimization
• Develop automated unit and integration tests using Jest, Mocha, or similar testing frameworks
• Build and maintain CI/CD pipelines and support automated application deployment
• Use Docker and Kubernetes for containerization and application deployment
• Troubleshoot production issues, perform root-cause analysis, and implement long-term solutions
• Participate in code reviews, technical design discussions, Agile ceremonies, and sprint planning

Basic Qualification

• Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related discipline; equivalent professional experience may be considered
• 6+ years of professional experience in full-stack software development
• Strong hands-on experience with MongoDB, Express.js, React.js, and Node.js
• Experience designing and developing RESTful APIs, microservices, and distributed applications
• Strong knowledge of MongoDB database design, data modeling, indexing, and query optimization
• Hands‑on experience with Git, GitHub, branching, merging, and pull request workflows
• Practical experience deploying and maintaining applications on AWS

Preferred Skills And Experience

• Strong experience with AWS Lambda, API Gateway, ECS/EKS, EC2, S3, DynamoDB, SQS, SNS, and CloudWatch
• Experience with React.js, Next.js, NestJS, and modern frontend development frameworks
• Knowledge of Redis, Kafka, and event-driven architecture
• Experience with PostgreSQL, Aurora PostgreSQL, or other relational database technologies
• Familiarity with Docker, Kubernetes, Terraform, and cloud infrastructure automation
• Experience implementing CI/CD pipelines using Jenkins, GitHub Actions, or GitLab CI/CD
• Knowledge of serverless architecture, cloud‑native development, and microservices design
• Experience with automated testing using Jest, Mocha, Supertest, or similar tools
• Strong understanding of API security, OAuth, JWT, authentication, and authorization
• Experience with application monitoring, logging, debugging, and performance tuning
• Ability to work independently, collaborate with cross‑functional teams, and deliver quality solutions

Additional Requirements

• Must be comfortable working with distributed teams across different time zones
• Must have strong communication, analytical, and problem‑solving skills
• Ability to manage development tasks independently and meet project deadlines
• Must follow secure coding standards, documentation practices, and software quality guidelines
• Must participate in code reviews, technical discussions, and Agile development activities

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.