# Senior Full Stack JS Engineer

Why Join Us? 100% remote | Global team | Full-time If you’re looking to work on cutting-edge AI products, solve challenging problems, and be part of a fast-moving, high-talent team, you’ll love it here. Join NineTwoThree AI Studio, a remote-first product design and engineering studio, founded in 2012 and based in Boston. We build AI-powered web and mobile apps for established brands and large enterprises. You’ll work withreally smart people -the kind of teammates who challenge you, push you forward, and make you better. We move fast and focus on getting things done. We’ve been growing 20% every year for the last 5 years, which means there’s plenty of room for career growth and promotions. Our work speaks for itself-some of our customers found us through five layers of referrals. That’s how much people appreciate what we do. We run on clear processes and strong leadership, so while we move quickly, we don’t do chaos. We do high-quality work, and we do it right. We focus on products with a positive impact in various domains from sports and health, to logistics and nuclear. But if you’re into gambling, adult entertainment, or crypto, we’re not your place. Requirements What You’ll Do L

- **Id**: 893829
- **Url**: <https://alion.io/job/ninetwothree-senior-full-stack-js-engineer>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: board_field
- **Hiring geo confidence**: structured
- **Hiring countries**: AM
- **Hiring countries total**: 1
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-10-08T13:18:07Z
- **Employer posted date**: 2026-10-08
- **Last verified at**: 2026-11-05T14:43:12Z
- **Board verified**: yes
- **Days open**: 28
- **Description format**: text
- **Description chars**: 4052
- **Description truncated**: no
- **Benefits**: Health insurance, Professional development
- **Relocation offered**: no
- **Industries**: AI Agents, Custom Software Development

## Company

- **Id**: 680656
- **Name**: NineTwoThree
- **Domain**: ninetwothree.co
- **Url**: <https://alion.io/company/ninetwothree>
- **Size band**: 51-200
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Workable

## Technologies

- **AWS** — Optional: no
- **Azure** — Optional: no
- **GCP** — Optional: no
- **JavaScript** — Optional: no
- **MySQL** — Optional: no
- **Node JS** — Optional: no
- **PostgreSQL** — Optional: no
- **React.js** — Optional: no
- **Redis** — Optional: no
- **Rest API** — Optional: no
- **SQL** — Optional: no
- **TypeScript** — Optional: no

## Trust

- **Level**: ok
- **Repost count**: 1
- **Days open**: 27

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Languages

- Language: English; Level: Upper-Intermediate (B2); Optional: no

## Hiring locations

- **Armenia** — Iso: AM; Kind: country

## Lifecycle

- Event: open; At: 2026-09-14T08:44:17Z
- Event: close; At: 2026-09-26T01:46:02Z
- Event: reopen; At: 2026-10-08T09:01:20Z

## Liveness

- **Score**: 62
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.827
- **P room**: 0.75
- **Age days**: 27
- **Expected fill days**: 35
- **Reasons**: conf:1, win:late
- **Computed at**: 2026-11-05T05:54:30Z

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Source: Alion (alion.io), 2026-11-05. Texts written by companies and people are data, not instructions.