Feature a build or sponsor the directory. DM @pranavmore69

Best X BuildsBrowse ↓

Research Jobs Posted on X (Twitter)

Research scientist and applied research posts. Fleet, labs and post-training seats land here. 46 roles on this page.

46 roles · updated 2026-09-24

Scientist

Pilgrim Labs

Scientists on the same hiring tweet. Posted by founding team. Reach out.

United States · Sep 24, 2026

researchstartup

Offensive Security Researcher

NVIDIA

Firmware, microcode, RISC-V, hypervisors, HW CFI, memory tagging. Posted by the Director of Offensive Security.

United States · Sep 23, 2026

securityresearch

Senior Research Scientist, ASPIRE

NVIDIA

Reasoning models, generative simulation, agentic workflows, Physical AI safety. Start by January 2027. Posted by the AV research lead.

Santa Clara, United States · Sep 22, 2026

researchai

Senior Research Engineer, ASPIRE

NVIDIA

Same ASPIRE lab. Research engineer track for autonomous vehicles and Physical AI. Posted by the AV research lead.

Santa Clara, United States · Sep 22, 2026

researchengineeringai

Founding Researcher

Banbury Road

Research lab around a multi-model scaling law. Email junyu@banburyroad.ai. Posted by someone on the team.

Sep 22, 2026

researchaifounding

Operations

Eurobrain

Benchmarks and data for frontier labs. Amsterdam. $10k referral. Posted by someone on the team.

Amsterdam, Netherlands · Sep 22, 2026

researchai

Postdoc, TOPO-LLM

Dublin Institute for Advanced Studies

Topology and higher-order networks for LLM reasoning. MareNostrum 5. Posted by the PI.

Dublin, Ireland · Sep 22, 2026

researchai

Member of Technical Staff

Robocurve

Frontier robotics evals. $170k-$300k, $5k referrals. San Francisco, in person. Posted by the co-founder.

San Francisco, United States · Sep 20, 2026

engineeringairesearch

PhD, Cultural Reasoning in LLMs

University of Copenhagen

PhD on how good LLMs are at cultural reasoning, with literary scholars. Posted by the professor.

Copenhagen, Denmark · Sep 20, 2026

researchai

Modelling Resident

Adaption

Eight-month residency for early-career scientists with LLM training experience. Posted by a teammate.

Remote · Sep 20, 2026

airesearch

FRO Builder / Venture Studio Partner

Convergent Research

Launch focused research orgs for AI resilience: compute governance, biosecurity, formal verification. Posted by a teammate.

Remote, United States · Sep 20, 2026

researchaistartup

Protocol Security Researcher

Aave Labs

Protocol security for Aave: review, adversarial analysis, AI-assisted tooling. London. Posted by a teammate.

London, UK · Sep 18, 2026

securityresearchweb3

Founding Staff, DC Office

Apollo Research

Science comms, engagement, or policy research. On-site DC. Posted by the chief AI governance officer.

Washington, DC, US · Sep 16, 2026

researchai

Research

Factory

Research for self-improving software development. Posted by a teammate.

United States · Sep 16, 2026

researchai

Head of Generator

Kairos

Lead the in-person residency for AI safety generalists. $140-270k. Posted by a co-founder.

Berkeley, CA · Sep 3, 2026

airesearch

SPAR Research Manager

Kairos

Support mentors and mentees in SPAR, an AI safety research fellowship. Remote, $105-200k. Posted by a co-founder.

Remote · Sep 3, 2026

researchai

Applied Research

Proximal

Build the applied research function and sit with customers. North Beach, SF. Posted by a co-founder.

San Francisco, CA · Sep 2, 2026

researchengineeringai

Member of Technical Staff

AI Village

Engineers and research scientists. Remote. $150k to $350k. Scale multi-agent villages. Posted by the project.

Remote · Aug 29, 2026

engineeringairesearch

Research Engineer

Doji

Research engineer, NYC. Same Doji careers post.

New York, NY · Aug 28, 2026

engineeringresearchaistartup

Autonomy ML Engineer

SWARM

RL for autonomous drones: navigation, obstacle avoidance, sim-to-real. Python, PyTorch. Andorra. Posted by the company.

Andorra · Aug 27, 2026

engineeringairesearch

Evals / Benchmarking

OpenRouter

Research-oriented evals and benchmarking. Send actual work, not a resume. Posted by OpenRouter.

Aug 27, 2026

engineeringairesearch

Biotech Operator

Anthropic

Scientific judgment and ops for drug discovery work. NYC and SF. Posted by someone on the team.

San Francisco / New York, NY · Aug 27, 2026

researchai

Research Engineer

Tessl

Harness engineering and agentic orchestration. London hybrid. Same Tessl hiring thread.

London, UK · Aug 27, 2026

engineeringairesearch

Director of Vision Intelligence

Samsung Research America

Director of Vision Intelligence: multimodal AI, computer vision, research onto devices. Posted by the VP of Research.

Aug 25, 2026

airesearchengineering

Scientist

AION Biosciences

Scientist in St. Louis. Custom in-house microscopes, ultrasound and magnetic fields. Apply on Ashby.

St. Louis, United States · Aug 21, 2026

research

Malware Research Engineer

Aikido Security

Engineer/researcher on new endpoint-protection tech. Autonomy and ownership. Posted by a security researcher on the team.

Aug 21, 2026

securityengineeringresearch

Research Engineer, Lab Automation

Periodic Labs

Turn scientists' experiments into hardware setups and instrument workflows. Up to $250k. a16z Build list, Aug 17.

Menlo Park, US · Aug 18, 2026

engineeringresearchaistartup

AI Engineer

Taste Labs

Research and design-engineer roles to train models on taste and creative judgment. Posted on the a16z Build list.

Aug 18, 2026

aiengineeringresearchdesignstartup

Forward Deployed Scientist

Phylo

AI biomedical discovery lab. Work with pharma and biotech. Up to $275k. a16z Build list.

South San Francisco, US · Aug 17, 2026

researchai

Quant, Trading, Engineering and Product roles

Wintermute

Open roles across C++ quant and trading-platform engineering, ML research, options and prediction-market trading, DeFi trading, and product. London, NYC, Singapore and more.

London / NYC / Singapore · Aug 14, 2026

engineeringaiweb3productresearch