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Senior Full-Stack Engineer

Job in New York, New York County, New York, 10261, USA
Listing for: Heyiris
Full Time position
Listed on 2026-02-16
Job specializations:
  • Software Development
    AI Engineer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 150000 - 200000 USD Yearly USD 150000.00 200000.00 YEAR
Job Description & How to Apply Below
Position: Senior Full-Stack Engineer New York •
Location: New York

Compensation: $150,000 - $200,000 | Equity Package

We’re looking for a Senior Full-stack Engineer with real startup experience who is comfortable owning features end-to-end — from backend APIs and data models to frontend user experiences.

This is a hands-on engineering role. You will design, build, review, and ship production features across the stack, working closely with backend, frontend, Generative

AI, Product, and Dev Sec Ops  teams.

Our AI-native platform is fundamentally transforming how enterprise revenue teams manage RFPs, security questionnaires, and compliance documentation—the critical bottleneck that delays deal closure and strains high-performing sales teams. We ve engineered a solution that compresses weeks of manual work into minutes, delivering unprecedented speed and accuracy. Leading organizations including Corelight and Build Ops have already integrated our platform into their revenue operations.

We are executing against a massive market opportunity: over $10 trillion in annual transaction value flows through RFP processes, representing virtually unlimited automation potential.

Responsibilities Full-stack Feature Development
  • Build and own end-to-end product features spanning backend services and frontend experiences
  • Translate product requirements into scalable technical implementations
  • Ensure features are performant, secure, and maintainable across the stack
Backend Systems & APIs
  • Design and implement backend APIs using Django and Django REST Framework
  • Contribute to core SaaS systems such as document ingestion, processing, and lifecycle management
  • Build and maintain long-running and asynchronous workflows
  • Design and optimize Postgre

    SQL schemas, indexes, and queries
  • Integrate caching and background processing where appropriate
Frontend Application Development
  • Build and maintain frontend features using React and Type Script
  • Develop reusable components and application-level patterns
  • Integrate frontend applications with backend APIs and real-time updates
  • Collaborate closely with design and product to deliver intuitive user experiences
  • Contribute to frontend performance, accessibility, and maintainability
SaaS Features & Platform Capabilities
  • Build and evolve core SaaS capabilities including:
  • Fine-grained permissioning and role-based access control
  • Notifications and user-facing workflow updates (including Server-Sent Events)
  • Secure integrations with external enterprise systems
  • Ensure workflows are observable, reliable, and scalable
Generative

AI Feature Integration
  • Implement user-facing features powered by Generative

    AI workflows
  • Collaborate with Generative

    AI engineers to integrate AI outputs into product experiences
  • Ensure AI-powered features are understandable, reliable, and actionable for users
  • Account for AI system limitations and failure modes in product design
AI-Augmented Engineering

We expect this role to actively use AI tools to increase development velocity and quality.

You should be comfortable:

  • Using AI coding assistants such as Cursor, Claude Code, and Copilot
  • Applying LLMs for code generation, refactoring, debugging, testing, and documentation
  • Using AI tools to accelerate development while maintaining code quality
  • Demonstrating meaningful productivity gains through effective AI tool usage
Collaboration & Engineering Excellence
  • Work closely with backend, frontend, Generative

    AI, Product, and Dev Sec Ops  teams
  • Participate in code reviews and contribute to shared engineering standards
  • Improve system reliability, test coverage, and developer experience
  • Contribute to a culture of ownership, clarity, and continuous improvement
Requirements Fullstack Engineering
  • 6+ years of professional software engineering experience
  • Proven experience building fullstack SaaS applications in production
  • Strong backend experience with Python and Django / Django REST Framework
  • Strong frontend experience with React and Type Script
  • Experience designing and consuming REST APIs
Backend & Data
  • Solid understanding of relational databases (Postgre

    SQL preferred)
  • Experience with asynchronous workflows and background processing
  • Familiarity with caching, performance optimization, and scalability concerns
  • Experience with Docker and containerized development
Frontend & UX
  • Experience building complex user-facing applications with React
  • Comfort working with state management, API integration, and frontend tooling
  • Ability to collaborate effectively with designers and product managers
GenerativeAI
  • Hands-on experience working with Generative

    AI-powered features
  • Experience integrating AI workflows into real product surfaces
  • Understanding of AI system behavior, limitations, and failure modes
Preferred Qualifications
  • Experience working in fast-growing startups
  • Prior ownership of significant product areas as a senior engineer
  • Experience with real-time updates (SSE or similar)
  • Familiarity with CI/CD pipelines and deployment workflows
  • Experience operating systems under real customer load
  • Familiarity with Model Context Protocol (MCP) or similar approaches for structured LLM tool and context…
Position Requirements
10+ Years work experience
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