# Full-Stack Engineer, Agent Evaluation & Reliability

About the Role Join an AI team building backend infrastructure for agent evaluation and continuous improvement. This backend-leaning full-stack role offers ownership of architecture and product decisions while turning complex systems into useful customer-facing features. What You'll Do Build and maintain backend systems that power agent evaluation and continuous improvement. Design data models for evaluation datasets, experiment runs, agent traces, knowledge versions, findings, and customer-defined quality criteria. Develop and support enterprise integrations, including authentication, OAuth, webhooks, incremental syncs, backfills, rate limits, retries, and monitoring. Own features end to end, from technical design and implementation through deployment, observability, customer feedback, and iteration. Work directly with customers to diagnose system failures and turn individual needs into reusable product capabilities. Debug distributed workflows and improve system reliability. What We're Looking For Two to four years of experience in a full-stack or backend engineering role building and shipping production systems. Production experience with TypeScript and Node.js or Bun, Po

- **Id**: 3982743
- **Url**: <https://alion.io/job/true-talent-solutions-partners-full-stack-engineer-agent-evaluation-reliability-4>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: junior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: San Francisco, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 2
- **Visa sponsorship**: yes
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-09T17:45:23Z
- **Employer posted date**: 2026-11-09
- **Last verified at**: 2026-11-09T20:19:23Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 2017
- **Description truncated**: no
- **Relocation offered**: no

## Company

- **Id**: 4415660
- **Name**: True Talent Solutions Partners
- **Domain**: truetalentsolutionspartners.com
- **Url**: <https://alion.io/company/true-talent-solutions-partners>
- **Is staffing agency**: yes
- **Employer type**: agency
- **Is intermediary**: no
- **Ats vendor**: Ashby

## Salary

- **Min**: 120000
- **Max**: 180000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 180000

## Technologies

- **LLM** — Optional: no
- **Machine Learning** — Optional: no
- **Node JS** — Optional: no
- **PostgreSQL** — Optional: no
- **TypeScript** — Optional: no
- **JavaScript** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 0

## Requirements

- **Experience years min**: 2
- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-09T20:19:23Z

## Visa

- Country: US; Licensed sponsor: no; Adverts offering sponsorship 24m: 97; Sanctioned now: no; Evidence: Offered visa sponsorship in 97 of its adverts here in 24 months; Filings 12m: 0

## Liveness

- **Score**: 52
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.516
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 4
- **Reasons**: conf:0, agency, win:early, comp:junior,brand
- **Computed at**: 2026-11-09T21:02:34Z

## Pay

- **Stated usd annual**: 180000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-09. Texts written by companies and people are data, not instructions.