Top Tech Jobs & Startup Jobs in NYC, NY

Prepare and submit customer invoices for federal contracts, maintain billing setups in Deltek Costpoint, support accounts receivable and collections, reconcile final invoices, ensure contract and regulatory compliance, and coordinate with internal teams to resolve billing issues and support contract closeouts.

Design, build, and maintain backend services, data processing, REST APIs, and Electron-based thick client desktop applications. Ensure secure, scalable client-server architectures, process structured data at scale, support containerized development and automated build pipelines, collaborate with designers, and mentor junior engineers while following Agile best practices.

Design, build, and optimize scalable, secure backend services, APIs, and data pipelines to support thick-client desktop applications (e.g., Electron). Focus on performance, concurrency, data modeling, authentication/authorization, and integration with DevSecOps pipelines. Collaborate on schema design, code reviews, CI/CD, containerization, and secure communications in regulated environments.

Perform enterprise web application, API, and database penetration tests; analyze authentication/authorization and business logic flaws; draft technical reports; validate remediations; automate tests; coordinate with owners and SOC teams; research emerging APT threats and threat emulation techniques; support corporate proposals and agency cybersecurity initiatives.

The Senior Solutions Architect designs and develops IT and network engineering solutions for government entities, supports business capture, and crafts proposal responses.

The role involves developing and sustaining a mission-critical command and control system using React.js and TypeScript, optimizing frontend performance, and mentoring junior engineers in an Agile environment.

Seeking a Senior Full Stack Developer focused on backend architecture to design, maintain, and mentor within an Agile environment, utilizing Java and .NET.