Full Stack Engineer (Founding Focus)

Full-time | On-site

Location: San Francisco, CA

We are a rapidly growing, founder-led AI platform transforming how key industries interact with critical government contract opportunities. We are seeking a highly motivated Full Stack Engineer to be the Founding Engineer responsible for building the core data pipeline and user-facing experience of our product. This role is ideal for an ambitious individual passionate about applying AI to solve mission-critical national security challenges.

This is a pivotal, high-impact role where you will own the end-to-end delivery of essential product features. You will be responsible for turning a massive volume of complex government data into actionable intelligence for our users.

Key Responsibilities:

Founding Engineer, Full Stack (Product-Minded)

Full-time | On-site

Location: San Francisco

We are building a unified platform that streamlines the use of large language models (LLMs) to build and deploy applications at scale. We are seeking a Founding Full Stack Engineer to own the entire application layer, driving developer productivity by providing a single pane of glass for data collection, model evaluation, training, and deployment.

As a Founding Engineer, you will be a product-minded generalist responsible for the entire feature lifecycle. You'll primarily focus on the backend systems that interface with our core machine learning (ML) stack, ensuring a scalable and reliable platform for our customers.

What You'll Do:

Engineering Manager

Full-time | On-site

Location: New York City or San Francisco

We are a rapidly growing AI platform leveraging real-time data ingestion, comprehension, and summarization across text, audio, and video to provide actionable insights for communications. We are seeking a dynamic Engineering Manager to build, lead, and scale our core engineering team as we accelerate growth and serve enterprise-grade customers.

The Engineering Manager will be responsible for both technical strategy and people leadership, ensuring the team operates with urgency, rigor, and a focus on long-term scalability. This role requires a balance of hands-on technical work, mentorship, and cross-functional product collaboration.

What You Will Do:

Staff/Senior/Principal Software Engineer (Elixir/AI Focus)

Location: Remote (with occasional travel)

Base Location: Salt Lake City, UT, US

Employment Type: Full-time

Salary Range: $150K - $260K (Based on YOE; potential flexibility for more tenured candidates)

We are a rapidly growing, well-funded technology company trusted by enterprise clients, developing a leading AI-powered platform for a specialized professional sector. Join our small, highly efficient engineering team to take ownership of complex systems and ship features quickly in a high-velocity, modern tech stack environment.

We are looking for a Staff, Senior, or Principal Software Engineer with a strong background in software engineering leadership to drive the design, implementation, and reliability of our core product. You will take full ownership of features from concept to production in a distributed, modern stack.

What You’ll Do:

Founding Software Engineer (iOS)

Location: New York, NY (100% On-site)

Employment Type: Full-time

Salary Range: $200K - $240K

We are a well-funded, high-growth FinTech company revolutionizing business banking and cash management for consumer brands. We are seeking a Founding iOS Engineer to take complete ownership of our mobile experience. This is a critical role responsible for building and launching a high-performance application from the ground up, shaping how our customers interact with their core financial data daily.

You will be responsible for bringing our product to life on mobile, focusing intensely on speed, reliability, and delivering a delightful user experience (UX). You will be a key player in shaping the technical direction and engineering culture of the company.

What You’ll Do:

Software Engineer (Backend/AI)

Location: San Francisco, CA (100% On-site)

Employment Type: Full-time

Salary Range: $140K - $300K

We are a rapidly growing, well-funded AI company (backed by world-class investors like A16z, Benchmark, and First Round Capital) focused on solving a critical bottleneck for modern AI teams: ingesting complex, real-world enterprise data (like PDFs and spreadsheets) with state-of-the-art accuracy. We have achieved 7x YOY revenue growth, working with hundreds of clients from leading AI startups to large enterprises. We are seeking an exceptional Backend/AI Engineer to build the core platform.

As a Backend/AI Engineer, you will work on our core API, which powers document parsing for hundreds of companies globally. This role requires high agency, a strong bar for quality, and a hands-on approach to the full development lifecycle, from ideation to production.

Core Work Will Include:

Senior Infrastructure Software Engineer - Medical AI Platform

Location: Hybrid - Miami

Compensation: $200,000 – $250,000

We are the world’s leading AI medical information platform, featured by the New England Journal of Medicine and trusted by medical professionals at over 10,000 care centers worldwide. Our mission-critical platform provides accurate, cited, and grounded answers at the point of care. Backed by investors including Sequoia Capital and Mayo Clinic, we are seeking a Senior Infrastructure Software Engineer to build the highly reliable and secure backbone for our medical AI platform.

Joining our Core Engineering team, you will have exceptional technical scope and direct impact, translating business objectives into elegant, scalable technical solutions. This is a hybrid role for a backend expert who thrives in a focused startup environment, owning key infrastructure and driving initiatives across reliability, data, and security, specifically handling sensitive medical data at scale.

Responsibilities:

Senior Fullstack Engineer (Founding AI Focus)

Location: New York City, NY (Hybrid, 3+ days/week on-site)

Employment Type: Full-time

Salary Range: $150K - $250K (Based on experience and quality)

We are a high-growth, mission-driven startup focused on delivering AI-powered solutions in the healthcare sector, specifically targeting a large, underserved patient population. Backed by top-tier VCs, this is a ground-floor opportunity for a high-impact engineer to join as a founding member and lead the technical architecture from inception to launch, with a clear path to engineering leadership.

We are seeking a Senior Fullstack Engineer with 4-10 years of experience to lead the design and launch of our AI-first product. You will work directly with the co-founders, owning major technical decisions and shaping the engineering culture. This role requires speed, autonomy, and a commitment to driving measurable, meaningful impact in a challenging healthcare domain.

Your Key Responsibilities:

Fullstack Engineer (Founding Team, High Agency)

Location: San Francisco, CA (100% On-site)

Employment Type: Full-time

Salary Range: $150K - $200K (Flexible for highly experienced candidates)

We are an ambitious, rapidly growing AI startup (recently raised a heavily oversubscribed $3.8M Seed round from top-tier VCs, including those early in OpenAI and Scale AI) focused on completely rebuilding the foundation of the massive Insurance Claims Processing industry. We are seeking a high-agency Fullstack Engineer to join our intensive, high-performance team. This is a role for engineers who thrive on extreme ownership and measurable customer impact.

This role requires a high level of performance, ambition, and ownership. You will be instrumental in defining and building core features end-to-end, working directly with founders and customers.

What You'll Do:

Founding Full Stack Software Engineer (Backend/AI Focus)

Location: Los Angeles, CA, US (On-site)

Employment Type: Full-time

Salary Range: $160K - $225K

We are a rapidly growing, Y-Combinator-backed (YC X25) startup operating at the intersection of AI and Cybersecurity. We are building fully autonomous, in-house AI agent systems designed to solve critical, large-scale problems in modern web application security. Join a small, high-impact founding team to define and build the core technology from the ground up.

We are seeking a skilled and passionate Founding Full Stack Software Engineer with a strong focus on backend development and AI systems. You will be responsible for designing, developing, and maintaining highly scalable, high-performance web applications and our cutting-edge AI Agent platform.