Full Stack Developer

Full Stack Developer
New York, NY (Remote)
Long-Term Contract
JPC - 20701

Solugenix is assisting a client in their search for a Full Stack Developer. This is a long-term contract opportunity based out of New York, NY (Remote)

Qualifications:

• Bachelors in Engineering.
• Business/legacy: Mendix Sales Platform supporting wholesale auctions, bidding, inventory-to-market, and buyer-facing workflows.
• Frontend: React + TypeScript.
• Backend/API: NestJS / Node.js on AWS Lambda behind regional REST API Gateway with Amazon Cognito authorizer. Strong in API development
• Application data: Amazon Aurora PostgreSQL Multi-AZ; 10 schemas; read replica for reporting and exports. Full historical reconciliation is required.
• Streaming: Apache Kafka on Amazon MSK.
• Identity/security: Microsoft Entra ID -> SAML -> Amazon Cognito; Secrets Manager, Parameter Store, and KMS; NAT Gateway for outbound egress.
• Integrations: Oracle ERP (integration endpoint only), Deposco, SharePoint, SendGrid, and Fivetran CDC into Snowflake.

Responsibilities:

• Build production features in React/TypeScript and NestJS/Node.js running on AWS Lambda.
• Reverse-engineer undocumented Mendix workflows, business rules, integration behavior, and edge cases; convert discovered behavior into implementation notes and automated tests.
• Implement REST endpoints behind API Gateway/Cognito and integrate with downstream systems including Oracle ERP, Deposco, SharePoint, SendGrid, and relevant data pipelines.
• Develop against Aurora PostgreSQL: schema changes, SQL, transactions, indexes, query tuning, data validation, and migration/reconciliation logic.
• Implement Kafka/MSK producers and consumers with attention to message contracts, ordering, duplicate delivery, idempotent handling, retries/recovery, and operational diagnostics.
• Support exact migration of full historical data, investigate reconciliation breaks, and collaborate with QA until parity evidence is complete.
• Participate in mirror/parallel validation, cutover rehearsals, pre/post-cutover verification, and rollback readiness.
• Write unit/integration tests, perform peer reviews, remediate security/quality findings, and support CI/CD and production incident troubleshooting.
• Use Claude Code, Cursor, GitHub Copilot, or equivalent AI-assisted tools as part of daily engineering to navigate unfamiliar legacy code, generate test scaffolds, explain code paths, and accelerate refactoring - with human validation of all generated output.

Pay Range for CA, CO, IL, NJ, NY, WA, and DC: $70/hour to $80/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. After making a conditional offer and running a background check, if we are concerned about conviction that is directly related to the job, applicants will be given the chance to explain the circumstances surrounding the conviction, provide mitigating evidence, or challenge the accuracy of the background report.

About the Client
Our client is an American financial services company. It ranks among the world's oldest and largest investment management organizations. They have offices globally.

About Solugenix
Solugenix is a leader in IT services, delivering cutting-edge technology solutions, exceptional talent, and managed services to global enterprises. With extensive expertise in highly regulated and complex industries, we are a trusted partner for integrating advanced technologies with streamlined processes. Our solutions drive growth, foster innovation, and ensure compliance-providing clients with reliability and a strong competitive edge.
Recognized as a 2024 Top Workplace, Solugenix is proud of its inclusive culture and unwavering commitment to excellence. Our recent expansion, with new offices in the Dominican Republic, Jakarta, and the Philippines, underscores our growing global presence and ability to offer world-class technology solutions. Partnering with Solugenix means more than just business-it means having a dedicated ally focused on your success in today's fast-evolving digital world.

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