Seldon - MTS: Senior Fullstack

San Francisco, California, United States - Hybrid$175k - $200k+ Equity1w ago

In Office Senior NA Artificial Intelligence Product Designer Senior Researcher

Requirements

• End-to-End Systems Builder: You’ve invested 6+ years building production systems and understanding how data and logic flow from backend to frontend. You’re comfortable moving across the stack - and care deeply about how everything fits together. • End-to-End Systems Builder: • Product Engineer at Heart: You don’t build features - you build outcomes that help users make decisions. You know when to go deep, when to simplify, and when to ship to learn. • Product Engineer at Heart: • AI-Native, User-Focused: You’re excited by LLMs, agents, and simulation systems - and you don’t just build for the tech, you build for the user. You translate complex behavior into insights. • AI-Native, User-Focused: • High Ownership, Low Ego: You take responsibility for outcomes, not just code. You surface problems early, adapt quickly, and prioritize being effective over being right. • High Ownership, Low Ego: • Comfortable at the Frontier: You thrive when the product isn’t in "maintenance mode.” You’re comfortable making decisions with incomplete information and building the playbook as you go. • Comfortable at the Frontier: • Uncomfortable with “It Just Works”: You crave the why, understand what worked or failed, and how to improve it. You drive clarity, debuggability, and elegant systems. • Uncomfortable with “It Just Works”: • All Backgrounds Welcome: Some of us are dropouts, some have PhDs. Some are tech veterans, some are first-timers. What matters - how you think, how you build, and how you work in teams. • All Backgrounds Welcome: • Bonus: Experience designing agentic systems or LLM-powered products, building internal tools or complex product workflows, and working in highly regulated environments. • Bonus:

Benefits

• $175K – $200K • Offers Equity • Type: Full Time, Hybrid • Type: • Team: Engineering • Team: • Focus: Senior Fullstack • Focus: • The Timing: The entire product stack was designed for a world where building software was expensive. That world is gone. The next generation of companies will be built around understanding human behavior before anything goes live. • The Timing: • The Team: A deeply ambitious, unusually diverse group of researchers, engineers, founders, and operators who care about building something meaningful together. • The Team: • The Problem: Deep science with real impact. We leverage behavioral modeling, cognitive science, and cutting-edge AI to solve real product challenges for real customers. • The Problem: • The Traction: Real interest from some of the most sophisticated companies and organizations in product, research, finance, and government. • The Traction: • The Backing: Backed by MaC VC, Protagonist, Weekend Fund and scouts at a16z, along with a team of MIT researchers and leaders from Discord, Airbnb, Meta, and Google. • The Backing: • The Member Of Staff Philosophy: You don't care about titles — you value extreme ownership. • The Member Of Staff Philosophy: • Health (US only): 100% paid medical, dental & vision • Health • PTO: 28 days (inc 5 company-wide days on stats) • Environment: Beautiful offices in SoMa & Tower Bridge optimized for deep collaboration • Environment: • WFH: 2 days/week (Mon & Fri) to catch up on laundry, save time commuting, and let your cat walk across the keyboard • Adventures: Team dinners, offsites, and events throughout the year • Adventures: