Liftoff Jobs

A curated index of open roles at top-tier AI companies.

Weekly digest

Week of 27 April 2026

99 new roles this week across 26 companies; the biggest movers: Genesis AI (+26), xAI (+11), K2 Space (+9).

Research

  1. Member of Technical Staff - Post-Training and RL — xAI · Late Stage · SF Bay Area · $180K–600K · 23 weeks ago Develops Grok, an AI platform offering reasoning, code, voice, image, and video capabilities through a unified
  2. Research Engineer, Post-Training Model Evaluations — Anthropic · SF Bay Area · $500K–850K · 23 weeks ago Develops Claude, an AI assistant, with research focused on AI safety and alignment
  3. AI Research Engineer, Post-Training — Lovable · Series B · Stockholm, SE · 23 weeks ago AI platform that generates production-ready web applications and websites from natural language descriptions
  4. Foundation Models — Genesis AI · Seed · SF Bay Area · 23 weeks ago Develops general-purpose robots powered by foundation models for physical tasks across factories, hospitals, a

All research roles →

ML engineering

  1. Software Engineer, Productivity - Model Performance — OpenAI · SF Bay Area · $230K–385K · 23 weeks ago Develops AI systems including large language models like ChatGPT for research and commercial use
  2. Inference — Genesis AI · Seed · SF Bay Area · 23 weeks ago
  3. Inference — Genesis AI · Seed · Paris · 23 weeks ago
  4. Robot Learning — Genesis AI · Seed · Paris · 23 weeks ago
  5. Robot Learning — Genesis AI · Seed · SF Bay Area · 23 weeks ago

All ML engineering roles →

Applied AI

  1. Deployment Lead (DL), FDE - Singapore — OpenAI · Singapore · 23 weeks ago
  2. GTM Engineer — LangChain · Series B · New York · 23 weeks ago Framework and platform for building, testing, deploying, and monitoring LLM-powered agents
  3. Customer Success Engineer (CSE), GPU Cluster — Together AI · Seed · SF Bay Area · $260K–290K · 23 weeks ago Together AI is a cloud-based platform specializing in artificial intelligence infrastructure and tools

Infrastructure

  1. Staff+ Infrastructure Engineer, Cluster Infrastructure — Anthropic · SF Bay Area · $320K–485K · 23 weeks ago
  2. Staff+ Software Engineer, Node Infra — Anthropic · SF Bay Area · $320K–485K · 23 weeks ago
  3. GPT Infrastructure Lead — OpenAI · SF Bay Area · $293K–385K · 23 weeks ago
  4. Software Engineer, GPT Infrastructure — OpenAI · SF Bay Area · $293K–385K · 23 weeks ago
  5. Software Engineer, Productivity - Networking — OpenAI · SF Bay Area · $230K–385K · 23 weeks ago
  6. Technical Threat Investigator, Threat Intel Engineering — OpenAI · SF Bay Area · $347K–510K · 23 weeks ago
  7. Performance Engineer (Inference, Training & GPU) — World Labs · SF Bay Area · $200K–300K · 23 weeks ago Builds 3D world generation models that create spatially consistent environments from text, images, and video

All infrastructure roles →

Data

  1. AI Tutor - Russian — xAI · Late Stage · Remote · 23 weeks ago
  2. Data Agent — Genesis AI · Seed · SF Bay Area · 23 weeks ago
  3. Data Agent — Genesis AI · Seed · Paris · 23 weeks ago
  4. Data Infrastructure — Genesis AI · Seed · Paris · 23 weeks ago

All data roles →

Software

  1. Engineering Manager, Cooperative Systems — OpenAI · Seattle · $400K–445K · 23 weeks ago
  2. Senior Ground Software Engineer — K2 Space · Series D · Los Angeles · $150K–200K · 23 weeks ago Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
  3. Software Engineer - Search Ranking — xAI · Late Stage · SF Bay Area · $180K–440K · 23 weeks ago
  4. Software Engineer - Back End — Distyl AI · Series B · SF Bay Area · 23 weeks ago Builds customized generative AI systems and operating platforms for enterprise transformation
  5. Perception Engineer — Mach Industries · Series C · Huntington Beach, CA · $125K–220K · 23 weeks ago Develops low-cost autonomous aerospace and defense systems including drones, munitions, and propulsion compone
  6. Platform — Genesis AI · Seed · SF Bay Area · 23 weeks ago

All software roles →

Hardware

  1. Senior/Principal DFT Engineer — Fractile · Series B · Bristol - The Crescent · 23 weeks ago Builds specialized processors that fuse computation with memory to run large language models up to 25x faster
  2. Senior/Principal DFT Engineer — Fractile · Series B · Bristol · 23 weeks ago
  3. Principal Mechanisms Engineer, Optical — K2 Space · Series D · Los Angeles · $175K–200K · 23 weeks ago
  4. Principal Solar Manufacturing Engineer — K2 Space · Series D · Los Angeles · $175K–200K · 23 weeks ago
  5. Construction Manager, Electrical - Memphis — xAI · Late Stage · Southaven, MS · 23 weeks ago
  6. Construction Manager, Structural - Memphis — xAI · Late Stage · Southaven, MS · 23 weeks ago
  7. Senior Navigation & Guidance Engineer — K2 Space · Series D · Los Angeles · $160K–235K · 23 weeks ago
  8. Senior Power Electronics Engineer — K2 Space · Series D · Los Angeles · $160K–210K · 23 weeks ago
  9. Senior Solar Design Engineer — K2 Space · Series D · Los Angeles · $140K–175K · 23 weeks ago
  10. Senior Solar Manufacturing Engineer — K2 Space · Series D · Los Angeles · $140K–175K · 23 weeks ago
  11. Commissioning Engineer – Propulsion, Electrical, & Mechanical Systems — Saronic · Series D · Franklin, LA · 23 weeks ago Saronic Technologies develops advanced autonomous surface vessels for naval and maritime applications
  12. Shipyard Industrial Engineer — Saronic · Series D · Franklin, LA · 23 weeks ago
  13. Construction Superintendent, Electrical (Night Shift) - Memphis — xAI · Late Stage · Southaven, MS · 23 weeks ago
  14. Construction Superintendent, Electrical - Memphis — xAI · Late Stage · Southaven, MS · 23 weeks ago
  15. Construction Superintendent, Mechanical (Night Shift) - Memphis — xAI · Late Stage · Southaven, MS · 23 weeks ago

All hardware roles →

Product

  1. Associate Product Manager — Fireworks AI · Series D · SF Bay Area · $160K–180K · 23 weeks ago Inference engine for deploying and fine-tuning open-source AI models with low-latency, high-throughput serving
  2. Product Management, Human Data Platform — Anthropic · SF Bay Area · $305K–385K · 23 weeks ago

Go-to-market

  1. Head of Marketing — Genesis AI · Seed · SF Bay Area · 23 weeks ago
  2. Principal Sales Engineer – Warehouse Robotics Systems — Skild AI · SF Bay Area · $100K–300K · 23 weeks ago Builds foundation models for general-purpose robots that adapt across hardware and tasks
  3. Business Development Manager — Genesis AI · Seed · SF Bay Area · 23 weeks ago
  4. Account Executive, AI Native Team — Fireworks AI · Series D · SF Bay Area · $240K–280K · 23 weeks ago
  5. Enterprise Account Executive, Spain — Sierra · Late Stage · Madrid, ES · 23 weeks ago Conversational AI platform that deploys customized agents across chat, voice, email, and SMS for customer supp
  6. Strategic Account Executive - Brazil — ElevenLabs · Series C · Brazil · 23 weeks ago AI platform generating realistic speech, music, and sound effects across 70+ languages

All go-to-market roles →

Operations

  1. Incident Response Manager - Product & Engineering — Anthropic · Dublin · $290K–365K · 23 weeks ago
  2. Technical Program Manager, Cloud Inference — Anthropic · SF Bay Area · $290K–435K · 23 weeks ago
  3. Technical Program Manager, Launches — Anthropic · SF Bay Area · $365K–435K · 23 weeks ago
  4. Technical Program Manager, Research — Anthropic · SF Bay Area · $365K–435K · 23 weeks ago
  5. Research Program Manager - Model Development — Reflection AI · Series B · New York · 23 weeks ago Builds open AI models that enable anyone to control and shape intelligent systems
  6. Research Program Manager - Model Evals and Safety — Reflection AI · Series B · New York · 23 weeks ago

All operations roles →

General

  1. Robotics — Genesis AI · Seed · SF Bay Area · 23 weeks ago
  2. Robotics — Genesis AI · Seed · Paris · 23 weeks ago

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