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AI Engineer

  • Salary not listed
  • Posted 2 weeks ago · via Ashby

Hiring in some regions only

Develop AI agents using TypeScript framework for Mastra, improving accuracy and performance.

Contribute to Mastra's open-source AI framework, building and refining AI agents with a focus on accuracy. Fine-tune agents, leverage industry benchmarks, and implement agent learning features like Autoevals and Suggestions. Ship production-ready agents and applications, ensuring they meet performance standards.

Why This Role?

Be part of the team behind Gatsby, working on cutting-edge AI features with direct founder access and immediate impact.

Key Responsibilities

  • Develop and ship AI agents and agentic applications into production
  • Tune and tweak agents to enhance accuracy and performance
  • Benchmark agent results against industry datasets for fine-tuning
  • Contribute to Mastra’s agent learning features, including Autoevals and Suggestions
  • Run Mastra primitives on benchmarks to optimize configuration

Requirements

  • Proven experience shipping AI agents into production
  • Strong proficiency in TypeScript and related technologies
  • Experience tuning and optimizing AI models and agents
  • Familiarity with AI/ML benchmarks and datasets
  • Understanding of agent learning and self-improvement techniques

Required Skills

typescriptaimachine-learningagent-developmentbenchmarkingAI/ML developmentTypeScript programmingModel tuning and optimizationBenchmarking and dataset analysisCollaboration and communicationProblem-solving

Indonesia Context

Working Hours Overlap:
Flexible — work your own hours
See remote (USD) vs local pay →
View Original Description from HN Who is HiringShow more

Original description from HN Who is Hiring

Mastra | AI Engineer | REMOTE (AMER or EMEA time zones) | Full-time Mastra is the open-source TypeScript framework for building AI agents (agents, workflows, memory, evals, tracing). From the team behind Gatsby, YC-backed, https://github.com/mastra-ai/mastra Why: We’re starting to build more and more agentic features into Mastra: Trace intelligence, and we’re working on various Agent Learning features to automatically self-improve agents (Autoevals + Suggestions, Rollouts). In addition, we’ve been increasingly running Mastra primitives like memory on industry-standard benchmarks and using the results to fine-tune configuration. You have: Shipped agents and agentic applications into production Tuned and tweaked them to improve accuracy You need to be able to benchmark your results against existing datasets, or intelligently creating Apply: { https://jobs.ashbyhq.com/mastra/531a3fe8-556f-4b83-bee7-2037... } We get back to everyone.

Salary Context

Similar Engineering roles on LokerDollar pay around $150k/yr (range $1k–1040k/yr, n=616 active listings).

Market context

  • UNKNOWNThis listing states no pay. Role median is $150,000/year (n=616 pay-disclosing listings).
  • VERIFIEDMastra: 4 postings in the last 3 months, 4 all-time on LokerDollar.
  • VERIFIEDCompany first seen Sep 3, 2026.
  • VERIFIEDThis listing first seen Oct 7, 2026.
  • VERIFIEDLast verified live Oct 7, 2026.

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Company
Mastra
Job Type
full time
Location
Remote · Some regions only
Category
Seniority
mid
Posted
Oct 7, 2026

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Frequently asked questions

Is AI Engineer at Mastra a remote job?
Yes, AI Engineer at Mastra is remote, but the employer hires only in certain regions. Check the listing for location requirements before applying.
What type of employment is AI Engineer at Mastra?
This is a full time position.
How do I apply?
Click the "Apply" button on this page to go to the official application at Mastra.

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