Senior Full Stack Engineer (Start-up)

Interlix Staffing; New York (NY); Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity ownership

Standard company benefits including PTO and health coverage

High-ownership culture

Job summary

A venture-backed B2B SaaS company in Manhattan is seeking a Senior Full Stack Engineer skilled in Python, Django, React, and TypeScript. The role involves designing and maintaining product features, integrating backend and frontend systems, and ensuring reliable data flow. Ideal candidates will possess over 5 years of experience and a strong ownership mindset in a fast-paced startup. This full-time position offers a competitive salary ranging from $180,000 to $240,000, equity ownership, and standard company benefits.

Qualifications

• 5+ years of professional full stack software engineering experience.
• Strong hands-on experience with Python and Django.
• Professional experience using React and TypeScript in production applications.

Responsibilities

• Design, build, and maintain full stack product features from concept to production.
• Develop responsive frontend experiences using TypeScript and React.
• Own features end-to-end including development, testing, deployment, debugging, and ongoing improvements.

Skills

Python

Django

React

TypeScript

API integration

Full stack development

Job description

Senior Full Stack Engineer (Python, React, TypeScript)

Location: Manhattan, New York (Hybrid – 3 Days In-Office Per Week)

Compensation: $180,000–$240,000 base salary (DOE) + 0.5%–1% equity

Company Overview

Our client is a venture-backed B2B SaaS company that has raised over $4 million in funding to build the modern software platform for the global metals supply chain. The company is building mission‑critical tools that power sales, CRM, procurement, and operational execution for metal fabricators, service centers, and machine shops across North America.

Position Overview

We are seeking a Staff Software Engineer to join a small, highly collaborative engineering team based in Manhattan. This role is designed for an experienced engineer who thrives in high-ownership startup environments and enjoys building production‑ready features end‑to‑end. You will be responsible for designing, building, shipping, and maintaining core product features across backend APIs, frontend interfaces, and integrations.

Key Responsibilities

• Design, build, and maintain full stack product features from concept to production.
• Build and maintain backend services primarily in Python (preferably Django)
• Develop responsive frontend experiences using TypeScript and React
• Connect frontend and backend systems and ensure reliable data flow across the platform.
• Own features end‑to‑end including development, testing, deployment, debugging, and ongoing improvements.
• Write and maintain automated tests and ensure production‑quality releases
• Groom technical tickets, improve specifications, and drive execution with high accountability
• Participate in system design discussions and help shape long‑term technical architecture.
• Troubleshoot bugs and support production systems with a customer‑impact mindset
• Work on third‑party integrations including APIs, email systems, and AI‑enabled services when needed.
• Contribute to technical direction and system improvements as the product scales
• Occasionally support third‑party integrations and AI‑adjacent features (not the core focus)

Qualifications

Required Qualifications

• 5+ years of professional full stack software engineering experience.
• Strong hands‑on experience with Python and Django.
• Professional experience using React and TypeScript in production applications.
• Proven ability to ship complete features independently (backend + frontend + integration)
• Experience building and consuming APIs.
• Strong ownership mindset with accountability for production outcomes.
• Comfortable working in a fast‑paced startup‑style environment.
• Comfortable owning features through build, release, and post‑release support/bug fixing
• Based in New York City or planning to relocate

Preferred Qualifications

• Experience working in B2B SaaS products.
• Familiarity with GraphQL or modern API architectures.
• Exposure to AI‑powered features or third‑party service integrations.
• Experience working with distributed engineering teams.
• Startup or high‑growth company experience.

Technical Stack

Core Technologies:

• Python, Django
• React, TypeScript

Additional Technologies (Nice to Have):

• GraphQL
• API integrations

Compensation & Equity

• Location: Manhattan, NY (in‑office 3 days/week)
• Base Salary: $180,000 – $240,000 USD (Depending on experience)
• Equity: 0.5% – 1% ownership.
• Employment Type: Full‑time W2.
• Benefits: Standard company benefits including PTO, paid holidays, and health coverage.

Why Join

• Build core infrastructure powering a multi‑billion‑dollar industry.
• High‑ownership culture with fast decision‑making and minimal bureaucracy.
• Work directly on revenue‑driving product features.
• Gain meaningful equity ownership in a rapidly scaling SaaS platform.
• Join a high‑impact team where your work ships quickly and matters immediately.

We look forward to reviewing your applications!