Software Engineer, Platform / Applied AI (Full-Stack)

Be an Early ApplicantFull Time

San Francisco, California, USPosted Today

Role Overview

David Joseph & Company is hiring a Software Engineer, Platform / Applied AI (Full-Stack). This is a full-time role in San Francisco, California. Part of David Joseph & Company's Fullstack hiring, posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.

Salary Context

Salary is not disclosed in this posting. Market median for Fullstack roles is $145k-$210k (based on 77 comparable listings). Many employers share specifics during the interview process or after an initial screen.

Resume Keywords to Include

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PythonJavaScriptTypeScriptGoNext.jsNode.jsAWSGCP

Job description

San Francisco, CA

On-site
Full-time Compensation: $180,000–$220,000 + competitive equity

About The Company

An AI research lab pushing the boundaries of artificial intelligence through novel datasets and experimentation, with the frontier foundation-model labs as its customers. Backed by top-tier investors, growing fast with strong revenue traction, and building out its founding engineering team.

Founded 2025

11–50 people
Industry: AI research / data infrastructure

The Role

As one of the core engineers, you'll help build the data infrastructure shaping the next generation of frontier models. You'll be one of the first hires, own entire projects end-to-end, and see your impact immediately.

What You'll Be Doing

Build and scale complex data-capture workflows across web (Next.js) and desktop (Python)
Architect and optimize high-throughput data pipelines under heavy load
Collaborate with the founding team to define product strategy and ship features fast
Set engineering best practices and lay the groundwork for future team growth

Tech stack: Next.js / JavaScript / TypeScript, Python, Go

GCP/AWS (serverless, cloud functions)
Kubernetes
Redis
Elasticsearch
Kafka / RabbitMQ
NoSQL
APIs

Requirements

Must come from a top university (US/Canadian/UK), top quant firm, or have founding engineer experience.
Strong coding fundamentals in Node.js / TypeScript, Python and/or Go.
Deep understanding of distributed systems, scalability challenges, and system design.
Familiarity with cloud platforms (GCP/AWS), Kubernetes, APIs, NoSQL databases.
Ability to reason about trade-offs and balance speed vs reliability.
Strong communication skills and a bias toward ownership, curiosity, and delivering simple solutions to complex problems.
Bonus: Experience with RL environments, agentic systems, or human-in-the-loop workflows.

Green Flags

GitHub is filled green, a builder at heart
Experience working with AI-agents and RL environments
Preferably someone who has worked at a top tier quant firm or as a founding eng (or multiple internships) at high-growth startups
Has trialed or succeeded in past fast-paced startup roles with strong references.
Works autonomously, yet collaboratively, and doesn't burn out under heavy load.
We want a SWE that can pretty much work banker hours
Ex-founders where their product is pretty sophisticated and complex

Red Flags

Isn't proactive
Can't articulate why they want to pivot into AI ops or join a startup now.
Worked cushy tech jobs (FAANG PM, etc.) and may not be used to intense work environments.
Wants work life balance

Why Join

Founding role — own and define the data infrastructure from day one, with immediate visible impact
Build the data infrastructure shaping frontier-model development, serving the frontier AI labs
Fast-growing company with strong revenue traction and a path to lead and grow an engineering team
Competitive salary + equity (4-year vest), daily lunch & dinner, free gym membership, health insurance

Details

Location: San Francisco, CA
Work policy: On-site
Compensation: $180,000–$220,000 + equity
Visa sponsorship: O-1, OPT
Employment type: Full-time

About David Joseph & Company

David Joseph & Company

davidjoseph.co

FullstackOn-site

All open roles at David Joseph & Company Visit website

Frequently Asked Questions

How do I apply for the Software Engineer, Platform / Applied AI (Full-Stack) position at David Joseph & Company?

Use the Apply button above to submit your application directly to David Joseph & Company. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Where is the Software Engineer, Platform / Applied AI (Full-Stack) position at David Joseph & Company located?

This position is based in San Francisco, California. David Joseph & Company has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Software Engineer, Platform / Applied AI (Full-Stack) at David Joseph & Company earn?

David Joseph & Company has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Software Engineer, Platform / Applied AI (Full-Stack) role at David Joseph & Company posted?

This role was posted on July 11, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.