Source Job

$175,000–$195,000/yr
US Canada Unlimited PTO 12w maternity 12w paternity

  • Build evaluation frameworks for AI agents, including datasets and metrics for real-world task performance.
  • Design experiments to compare models and tools, identifying regressions and trade-offs.
  • Investigate agent failures and improve performance across models, harnesses, and tooling.

Python Machine Learning AI Agents Software Engineering Data Science

20 jobs similar to Research Engineer

Jobs ranked by similarity.

Global

  • Design and build automated evaluation pipelines for AI agents.
  • Develop testing frameworks for reasoning, multi-turn conversations, and adversarial scenarios.
  • Own the evaluation architecture and integrate observability tools in a fully remote team.

A company building production-grade AI agents and systems. They operate in a fully remote, globally distributed environment with a culture focused on innovation, autonomy, and continuous improvement.

AI Engineer

Elicit
$185,000–$320,000/yr
US 4w PTO

  • Build evaluations to measure and improve AI reasoning in complex, high-stakes decisions.
  • Collaborate with engineers, product, and domain experts to turn observed failures into testable improvements.
  • Own the quality of shipped systems, from code reviews to monitoring and integration.

Elicit builds AI systems that help research and business teams make evidence-based decisions on high-stakes questions. They are a remote-friendly, collaborative team that values rigorous thinking, experimentation, and in-person retreats.

Global

  • Design and build challenging evaluations and executable environments for coding and long-horizon agents.
  • Develop scoring logic and verifiers to detect reward hacks and trace failures through model outputs and harness code.
  • Build and scale RL data pipelines for generating and curating challenging coding and agentic tasks.

Prime Intellect is building the open superintelligence stack, providing infrastructure for post-training frontier AI models and open-source models trained for long-horizon tasks. The company has raised $150M from top investors and is a mission-driven team passionate about accelerating science and AI.

$130,000–$200,000/yr
US

  • Develop AI methods and algorithms for reliable agents.
  • Design simulations and evaluations for agent behavior.
  • Partner with product and engineering to ship research.

The company builds an AI agent platform focused on making agents reliable in production. It is a research-driven environment with a collaborative, startup-oriented culture.

$130,000–$200,000/yr
US

  • Develop and improve methods, algorithms, and systems across the lifecycle of reliable AI agents.
  • Create new approaches for simulating, evaluating, and optimizing agent behavior in real-world settings.
  • Partner with product and engineering teams to bring AI research into practical applications.

The company builds infrastructure for reliable AI agents in production, targeting enterprise workflows. It is a focused team of researchers and engineers working collaboratively on advancing agentic AI.

US

  • Design and build Reddit's agent optimization harness for evaluating and improving AI agents across engineering workflows.
  • Develop Reddit-specific evaluation environments, offline replay, automated evaluation, and regression detection.
  • Partner with Platform Engineering, Infrastructure, and Developer Productivity to integrate agent capabilities.

Reddit is a community of communities built on shared interests, passion, and trust, with 100,000+ active communities and ~130 million daily active users. We are one of the internet's largest sources of information, fostering open and authentic conversations.

$130,000–$200,000/yr
US

  • Develop and improve AI methods, algorithms, and systems across the lifecycle of reliable agents.
  • Create new approaches for simulating, evaluating, and optimizing agent behavior in real-world settings.
  • Turn research ideas into working systems, prototypes, and production-facing capabilities.

The company is a research-focused team developing methods and systems to make AI agents more reliable in production. It operates as a small team with a culture of original research, experimentation, and close collaboration with product and engineering.

Global

  • Build the Learning Gym, a sandboxed environment for training and evaluating AI agents on real Niural workflows with ground-truth reward signals.
  • Engineer verifiers, run reinforcement learning loops, and establish honest baselines to prove agent improvements generalize.
  • Write first-author research papers and internal technical reports, and represent the work externally through preprints and talks.

Niural is a global payroll, Employer of Record (EOR), Agent of Record (AOR), and Contractor Management platform. It is a relentlessly ambitious team focused on building foundational internet infrastructure for the AI era.

Global 7w PTO

  • Build and own evaluation infrastructure for Circle's AI agents.
  • Diagnose quality breakdowns across the agent pipeline.
  • Grow datasets and lead the AI Quality engineering team.

Circle builds an AI-powered all-in-one platform for digital businesses, uniting audiences with discussions, live streams, events, chat, courses, and payments. It's a fully remote team of about 270 people from 30+ countries, with an async culture and annual global offsites.

$80–$150/hr

  • Design evaluations of conceptual reasoning in AI safety, covering governance, alignment, macrostrategy, and economics.
  • Develop rubrics that separate genuine reasoning from plausible-sounding filler.
  • Iterate on tasks with frontier models and collaborate with a top research team.

Trajectory Labs is a startup automating AI safety research. We build safety and alignment evals, red-teaming programs, and RL environments for frontier AI labs. As a one-year-old company, we've been featured in major frontier lab safety reports and led high-impact red-teaming efforts.

$190,000–$270,000/yr
US

  • Take new AI products from idea to production
  • Talk to users and turn vague needs into clear workflows and designs
  • Build the tools used to test, evaluate and monitor agents

They are a late-stage, venture-backed enterprise AI company shipping new AI products from zero to one. They are assembling a small, high-ownership team focused on speed, product judgment, and customer impact.

US

  • Research and define end-to-end AI system requirements from capability to behavior to user impact.
  • Work closely with ML, backend, and mobile engineers on system design, evaluation, and iteration.
  • Define and evolve evaluation frameworks across offline metrics, online experiments, and human feedback.

Europe 6w PTO

  • Own agent quality end-to-end for Bliro's chat and voice agents, including prompting, context, and model evaluation.
  • Build eval sets, LLM judges, and benchmarks to measure quality, latency, and cost with statistical rigor.
  • Establish a repeatable process for improving agent quality and set the long-term technology roadmap.

Bliro builds an AI assistant that handles desk work for field sales teams, with over one million customer touchpoints documented. Backed by leading investors and trusted by German Mittelstand companies, it's a small, high-performing team that values ownership and continuous improvement.

$150,000–$300,000/yr
Global

  • Build and post-train agents for scientific research, including literature search, code execution, and domain tool use.
  • Develop RL and multi-agent methods for proposing, testing, and critiquing hypotheses, with strong baselines and evaluation.
  • Design verifiers, reward signals, and reproducible experimental loops for scientific workflows, ensuring evidence-based improvements.

Prime Intellect builds the open superintelligence stack, providing infrastructure for frontier AI labs to train, evaluate, and deploy models at scale. The company has raised $150M from top investors and operators, and is building a culture focused on frontier research, real infrastructure, and go-to-market for a new category.

US

  • Build and ship LLM-powered applications and AI agent workflows.
  • Design systems for reasoning, planning, memory, tool use, and multi-step execution.
  • Optimize AI systems for quality, latency, and cost, and establish production practices for observability and evaluation.

Gina's Tech Jobs is a technology recruiting firm that connects companies with engineering and IT professionals. They focus on remote and onsite placements, offering personalized recruitment services and career support.

US Unlimited PTO 17w maternity 17w paternity

  • Build AI applications, agents, skills, connectors, and workflow automations that solve business problems.
  • Translate ambiguous business needs into AI-native workflows and own engineering from discovery to production launch.
  • Work closely with internal teams to embed AI solutions and drive measurable gains in quality, speed, and cost.

Reddit is a community of communities built on shared interests, passion, and trust. With 100,000+ active communities and about 130 million daily active visitors, it is one of the internet's largest sources of information.

North America

  • Conduct research on enterprise agentic AI, including agent memory, continuous learning, safety, and privacy.
  • Leverage unique access to real enterprise deployments to test hypotheses and advance the state of the art.
  • Publish at top-tier venues and collaborate with cross-disciplinary teams to influence product decisions.

ServiceNow is the AI control tower for business reinvention, bringing together AI, data, and workflows to help 85% of the Fortune 500 work smarter. The company is a global leader with over 8,100 customers, building an AI-native culture where technology and talent are unstoppable together.

$170,000–$220,000/yr
US

  • Own the context layer: manage what Mimo knows, when, and at what cost, with retrieval and memory as one budget.
  • Define tool contracts and build evaluation practice: schemas, results, failure modes, and regression gates for every change.
  • Shape how Mimo reasons, asks, explains, and recovers, and decide which model runs where.

MimoLabs builds Mimo, an agentic system for making physical things, from design to production across 3D printing, CNC, and laser cutting. We are a small, VC-funded, experienced team based in Detroit and remote across the US, fast, adaptable, and honest.

  • Building multi-agent systems and implementing agent-based workflows and AI automation solutions.
  • Developing and optimizing prompt engineering strategies, including evaluation and iteration.
  • Integrating LLMs and AI models into cloud-based applications and APIs while researching new AI tools.

Software Mind develops impactful software solutions for global companies, partnering with tech giants and unicorns on transformative projects. The company builds cross-functional engineering teams and embraces a culture of openness, respect, grit, and cooperation.

$275,000–$300,000/yr
US Europe

  • Set technical direction for production agent systems, including orchestration, tool use, memory management, and failure recovery.
  • Build and operate shared foundations: evaluation frameworks, observability, execution controls, and model access with routing and failover.
  • Work with security and platform teams to ensure scoped permissions, data isolation, audit trails, and safe execution of tools and code.

Cobalt runs AI agents in production that test real customer applications, operating at the forefront of the pentesting industry. The company is rapidly expanding, offering a collaborative culture with mentorship, competitive compensation, and a focus on growth.