Lead Full Stack Engineer Job Buffalo area,New York USA,Software Development

Solugenix is assisting a client in their search for a Lead Full Stack Engineer. This is a 12-month contract opportunity based out of New York, NY (Remote).

We are looking for a Lead MERN Stack Engineer with strong backend development and AWS experience to design, develop, and support scalable, high-performance applications and services. This is a backend-heavy position. The ideal candidate should have deep hands‑on experience with Node.js, Express.js, REST APIs, MongoDB, microservices, and AWS, along with working knowledge of React.js. The engineer will work closely with product, architecture, Dev Ops, QA, and other engineering teams to build secure and reliable cloud-based solutions.

Qualifications

8+ years of overall software development experience.
Strong hands‑on experience with Node.js and Express.js.
Strong experience designing and developing RESTful APIs and backend services.
Experience building microservices and distributed applications.
Strong experience with MongoDB, including schema/data modeling, aggregation, indexing, and performance optimization.
Hands‑on experience with AWS cloud services.
Experience with AWS services such as:
Lambda, API Gateway, ECS/EKS, EC2, S3, DynamoDB, SQS/SNS, Cloud Watch, and IAM.
Experience developing serverless and/or containerized applications on AWS.
Strong understanding of API security, authentication, and authorization, including OAuth/JWT.
Experience integrating applications with third‑party APIs and external systems.
Experience with Docker and containerized deployments.
Good understanding of CI/CD pipelines and modern Dev Ops practices.
Experience with Git/Git Hub and Agile development methodologies.
Strong production troubleshooting, debugging, logging, and performance‑tuning skills.
Working knowledge of React.js and frontend integration.
Excellent problem‑solving and communication skills.

Required Skills

React, Next.js, Nest.js, REST APIs, AWS Lambda, Aurora PostgreSQL, Kafka/MSK

Preferred Skills

Experience with AWS CDK, Cloud Formation, or Terraform.
Experience with event‑driven architecture using SQS, SNS, Event Bridge, or Kafka.
Experience with Kubernetes/EKS.
Experience designing highly available and scalable cloud applications.
Experience with observability and monitoring using Cloud Watch or similar platforms.
Experience with automated testing using Jest, Mocha, or similar frameworks.
AWS certification is a plus.

Responsibilities

Design and develop scalable backend applications using Node.js, Express.js, Type Script, and MongoDB.
Build and maintain REST APIs, microservices, and integration services.
Design asynchronous and event‑driven processing workflows.
Integrate backend services with web applications, external APIs, databases, and enterprise systems.
Improve application performance, scalability, reliability, and security.
Participate in architecture and technical design discussions.
Develop reusable, maintainable, and testable code.
Troubleshoot complex production issues and perform root‑cause analysis.
Work with Dev Ops teams on CI/CD, cloud deployments, monitoring, and operational improvements.
Conduct code reviews and contribute to engineering best practices.

Candidate Profile

We are specifically looking for a backend‑heavy MERN engineer, not a frontend‑focused React developer.

Pay Range for CA, CO, IL, NJ, NY, WA, and DC: $75/hour to $75/hour. Starting rate of pay offered may vary depending on factors including but not limited to, position offered, location, education, training, and/or experience.

Solugenix will consider qualified applicants with a criminal history pursuant to the California Fair Chance Act and Ordinance. Applicants do not need to disclose their criminal history or participate in a background check until a conditional job offer is made to you.…