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SYSTEM EDGE (USA) L.L.C.

Back End Developer

Hybrid

Sterling, United states

$ 65 /hour

Senior

Freelance

12-09-2025

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Skills

Communication JavaScript TypeScript MySQL MongoDB PostgreSQL GraphQL GitHub GitLab CI/CD DevOps Docker Kubernetes Version Control Agile methodologies Problem-solving Architecture Databases git Azure node.js AWS cloud platforms Agile CI/CD Pipelines Microservices

Job Specifications

Job Description: We are seeking a highly experienced Senior Node.js API Developer with over 7 years of expertise in building and maintaining scalable, secure, and efficient backend systems. The ideal candidate will be responsible for designing, developing, and optimizing RESTful APIs and microservices, collaborating with cross-functional teams to deliver high-quality solutions, and ensuring the performance and security of our backend infrastructure.

Key Responsibilities:

Design, develop, and maintain RESTful APIs and microservices using Node.js and Express.js.
Write clean, well-documented, and efficient code adhering to best practices.
Collaborate with front-end developers, product managers, and other stakeholders to deliver integrated solutions.
Optimize application performance, scalability, and security.
Implement authentication, authorization, and data validation mechanisms.
Conduct code reviews and mentor junior team members.
Integrate third-party APIs and external services.
Deploy and monitor applications using cloud platforms such as AWS, Azure, or Google Cloud.
Build and maintain CI/CD pipelines for automated testing and deployment.
Document API designs and technical specifications.
Stay updated with the latest industry trends and incorporate innovative solutions.

Qualifications:

7+ years of professional experience in Node.js development.
Strong proficiency in JavaScript and TypeScript.
Extensive experience with Express.js or similar frameworks.
Solid understanding of RESTful API principles, GraphQL (preferred).
Experience with microservices architecture and containerization (Docker, Kubernetes).
Proficiency with databases such as MongoDB, MySQL, PostgreSQL.
Knowledge of authentication/authorization protocols (JWT, OAuth).
Hands-on experience with cloud deployment and serverless technologies.
Familiarity with version control tools like Git.
Excellent problem-solving and communication skills.
Ability to work in a fast-paced, Agile environment.

Key Skills:

Node.js & Express.js
RESTful API & GraphQL design
Microservices architecture
Database: MongoDB, MySQL, PostgreSQL
Authentication & Authorization (JWT, OAuth)
Cloud Platforms: AWS, Azure, Google Cloud
Containerization & Deployment: Docker, Kubernetes
Version Control: Git, GitHub, GitLab
Agile methodologies & DevOps practices

About the Company

System Edge is an IT consultancy and software development company established in 1995. Headquartered in Iselin, New Jersey, with offices in the USA, Europe, and India, we are recognized by various state agencies and the NMSDC. Our commitment to excellence and creating innovative solutions has allowed us to form lasting partnerships with clients for over two decades. We are certified by the State of New York and other states and are prime vendors to many Federal, State, and Fortune 500 companies. Our services are reasonably p... Know more