Sr. API Developer

Derex Technologies Inc•Jersey City, NJ

1d•Onsite

About The Position

Derex Technologies Inc is seeking a Sr. API Developer with expertise in Node.js, Nest.js, MongoDB, AWS, and Java for a long-term position in NJ. The role involves designing, developing, and maintaining applications, building scalable RESTful APIs and microservices, optimizing database performance, and developing cloud-native applications on AWS. The developer will also integrate Generative AI capabilities, collaborate with cross-functional teams, and ensure code quality and application reliability. Experience in the insurance domain, particularly mortgage insurance, is preferred.

Requirements

Bachelor's degree in Computer Science, Engineering, or a related field.
5–8 years of software development experience.
Strong problem-solving, analytical, and communication skills.
Experience working in Agile development teams
Strong experience in NestJS, Node.js, and TypeScript
Hands-on experience with MongoDB
Experience with AWS Cloud services and cloud-native application development
Good understanding of Microservices Architecture and REST APIs
Experience with Docker, Kubernetes, and CI/CD pipelines
Experience using Generative AI tools (e.g., GitHub Copilot, Amazon Q, OpenAI APIs, Claude) to improve development productivity and build AI-enabled solutions
Familiarity with Prompt Engineering, AI-assisted development, and LLM integrations
Knowledge of application security, Git, Agile methodologies, and DevOps practices
Insurance Domain Experience
Experience in the Mortgage Insurance domain is preferred.
Experience working with insurance platforms or enterprise policy systems is an advantage.

Nice To Haves

Experience with event-driven architectures and messaging platforms.
Knowledge of Infrastructure as Code (Terraform/CloudFormation).
Exposure to Guidewire or other insurance platforms.
Experience integrating AI services, vector databases, RAG, or AI agents into enterprise applications.
Passion for continuous learning and adopting emerging AI technologies.

Responsibilities

Design, develop, and maintain applications using NestJS and Node.js.
Build scalable RESTful APIs and microservices for enterprise insurance applications.
Design and optimize MongoDB data models and database performance.
Develop and deploy cloud-native applications on AWS.
Able to develop golden records, mapping, data lineage, ontology services using Mongo DB and NestJS.
Integrate Generative AI capabilities into applications where applicable.
Collaborate with architects, product owners, QA, and DevOps teams throughout the software development lifecycle.
Participate in technical design discussions, code reviews, and sprint planning.
Write clean, maintainable, and well-tested code following engineering best practices.
Troubleshoot production issues and continuously improve application performance and reliability.