Senior AI Systems Engineer – Remote, Equity

Nuxt; Spain; Hybrid; EUR 65,000 - 100,000; Full time

Benefits offered by this job

Fully remote (EU)

Competitive equity

Small, impactful team

Job summary

2501 is building autonomous AI agents that operate in the shell to solve real production tasks, not just evals. We blend open-source and flagship models to keep systems reliable and observable.

You will own features end-to-end across our TypeScript CLI, Postgres data layer, evals, and deployments, working with multiple LLMs to extract the best results in production. Join a small, impactful team that ships quickly, learns constantly, and favors real-time collaboration, with fully remote work

Qualifications

• Shipped complex production systems.
• AI-native workflow and agents in production.
• Ownership mindset: fix what is broken.

Responsibilities

• Own features end-to-end across TypeScript CLI, Postgres data layer, evals, and deployments.
• Build tooling to make autonomous agents reliable in real production environments.
• Work with multiple LLMs - open-source and flagship - to maximize results.
• Ship fast, measure with evals, and iterate with customers.

Skills

Production systems

AI-native workflow

Ownership mindset

Tools

TypeScript CLI

Postgres

Eval systems

Job description

2501 is building autonomous AI agents that operate in the shell to solve real production tasks, not just evals. We blend open-source and flagship models to keep systems reliable and observable.

You will own features end-to-end across our TypeScript CLI, Postgres data layer, evals, and deployments, working with multiple LLMs to extract the best results in production. Join a small, impactful team that ships quickly, learns constantly, and favors real-time collaboration, with fully remote work