Skip to content
AsteraAstera

Senior Software Engineer

Builds high-performance infrastructure for brain reverse-engineering via large-scale AI models and neuroscience-informed simulations. Architects systems, optimizes RL environments, and scales research prototypes to production.

About the job

Responsibilities

  • Architect high-performance infrastructure for training large-scale models and running complex simulations.
  • Design and optimize custom RL environments informed by neuroscience.
  • Write clean, fast, production-grade code that boosts research velocity.
  • Turn research prototypes into scalable production systems.
  • Tackle technical bottlenecks from low-level optimization to high-level system design.

Qualifications

  • Produce clean, maintainable, well-tested code at startup pace, balancing rigor with quick iteration.
  • Deep experience architecting complex systems from scratch, understanding trade-offs.
  • Extreme adaptability to dive into new domains like neuroscience.
  • Track record tackling difficult engineering challenges like massive scale distributed systems or low-level optimization.

Skills

Python, Reinforcement Learning, Distributed Systems, High-Performance Computing, System Architecture, Low-Level Optimization, Scalable Production Systems, Rl Environments

Navan

Navan

New York, NY

Senior Software Engineer, AI
$113k+/yrOn-site6+ YOEML Engineering

Build customer-facing agentic AI experiences for loyalty programs, combining LLM workflows, product engineering, personalization, and safety controls. The role requires 6+ years of software engineering experience and production experience with AI or LLM-powered systems.

6sense

6sense

United States

Senior Enterprise AI Engineer, IT Operations
$127k+/yrRemote5+ YOEML Engineering

Build and deploy secure enterprise AI agents, integrations, and automated workflows that improve internal productivity and business operations. The role requires at least five years of enterprise, software, automation, or IT systems engineering experience, plus hands-on workflow and LLM application development.

Axle

Axle

United States

Senior Data Scientist, Agentic AI Systems
$130k+/yrRemote5+ YOEML Engineering

Build and operate agentic AI systems for rare disease research, including typed workflows, evaluation, observability, and production deployment. The role requires a bachelor’s degree or equivalent experience, 5+ years building production systems, and 2+ years shipping LLM-powered applications.

Black Forest Labs

Black Forest Labs

Freiburg, Germany

Member of Technical Staff - Post Training
€130k+/yrHybrid7+ YOEML Engineering

Owns end-to-end post-training for frontier multimodal generative models, spanning reward modeling, preference optimization, distillation, safety tuning, evaluation, and deployment. The role requires prior experience shipping post-training improvements and strong PyTorch expertise.

Apartment List

Apartment List

United States
Senior Software Engineer II , Marketplace
$145k+/yrRemote5+ YOEML Engineering

Build marketplace search and ranking features while supporting MLOps infrastructure, model deployment, feature stores, and real-time data pipelines. The role requires 5+ years of software engineering or MLOps experience, backend or full-stack expertise, and familiarity with cloud and machine learning tooling.