Full Stack Developer/Engineer

JSR Tech Consulting; Newark (NJ); On-site; USD 83,000 - 90,000; Full time

Job summary

JSR Tech Consulting seeks a full‑stack engineer to partner with product owners and delivery teams to build modern applications. You will code, test, and debug new and existing software, focusing on React.js frontend, Node.js backend, and microservices deployed in AWS.

You will collaborate in an agile environment to deliver high-quality software and delightful customer experiences. You will design APIs, implement tests, and stay current with cloud and container technologies, contributing to

Qualifications

• Proficient in modern frontend with React.js (hooks, state mgmt, components).
• Backend experience with Node.js and RESTful API design.
• Experience with Java, Spring Boot, and microservices architecture.
• Familiarity with AWS services, Docker, and CI/CD pipelines.
• Ability to design and integrate REST/GraphQL APIs; familiarity with data stores.

Responsibilities

• Partner with product owners, tech leads, designers, engineers, and delivery professionals.
• Code, test, and debug applications to solve complex business problems.
• Help deliver innovative products, services, and customer experiences in an agile environment.
• Build applications using current coding practices and sound architecture.
• Write unit, integration, and functional tests; fix issues from QA and support.
• Stay current on emerging technologies and share ideas with the team.
• Analyze data to solve problems of varying scope.

Skills

React.js

Node.js

Java

Spring Boot

RESTful APIs

Microservices

AWS services

CI/CD

Cloud infrastructure

PostgreSQL

MongoDB

Testing & QA collaboration

Tools

Docker

AWS ECS

AWS EKS

Express/NestJS

GraphQL

API Gateway

Lambda

CloudWatch

REST/GraphQL APIs

Terraform

Job description

• $60 - $65 per hour on W2, depending on experience
• No C2C

About the Role

• Partner with product owners, tech leads, designers, engineers, and delivery professionals
• Code, test, and debug new and existing applications to solve complex business problems
• Help deliver innovative products, services, and customer experiences in an agile environment

Responsibilities

• Build applications using current coding practices, modern design patterns, and sound architectural principles
• Develop high quality, well documented, and efficient code that meets company standards
• Work with product owners to define feature stories and with tech leads on technical design
• Write unit tests, integration tests, and functional automation
• Research and resolve issues found by QA or product support
• Stay current on emerging technologies and share feedback and ideas with the team
• Analyze data and solve problems of varying scope

Required Skills

• Strong hands-on experience with React.js (hooks, state management, component-based architecture)
• Backend development experience with Node.js (Express/NestJS) and RESTful API design
• Experience with Spring Boot and Java
• Experience designing and integrating REST/GraphQL APIs and microservices
• Hands-on experience with AWS services (EC2, S3, API Gateway, Lambda)
• Docker containerization and deployment to AWS ECS or EKS
• CI/CD pipelines and automated deployments in AWS
• Understanding of cloud infrastructure concepts (VPC, IAM, load balancing, auto scaling)
• Database experience with PostgreSQL, MongoDB, or other NoSQL, including query optimization
• Monitoring and logging tools such as CloudWatch