# Founding Software Engineer - Backend

About Hypercubic At Hypercubic, we’re building AI systems that can understand, reason about, and rearchitect large-scale legacy applications running on mainframes and COBOL. We work at the intersection of program analysis, knowledge extraction, and agentic systems, applied to some of the most critical enterprise software in the world (banks, insurance, airlines, government, and more). We’re a small, deeply technical team in San Francisco, backed by top investors, and working with some of the largest organizations in the world. Learn why we're excited about mainframe modernization. About the Role We’re looking for a backend engineer with unusually strong engineering and design taste. You will work directly with the CTO to design, prototype, and productionize AI-powered systems from first principles. This is a founding role with meaningful ownership over architecture, product direction, and engineering culture. It is suited for someone with strong fundamentals and comfortable operating across abstraction layers, from low-level system reasoning to high-level interactions. What You’ll Do Rapidly prototype new concepts and features to validate ideas before full implementation. Ship AI-

- **Id**: 864531
- **Url**: <https://alion.io/job/hypercubic-founding-software-engineer-backend>
- **Role**: Backend
- **Role family**: Backend
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: San Francisco, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: yes
- **Relocation package**: yes
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-05-26T18:58:05Z
- **Employer posted date**: 2026-11-03
- **Last verified at**: 2026-11-07T00:26:03Z
- **Board verified**: yes
- **Days open**: 164
- **Description format**: text
- **Description chars**: 3510
- **Description truncated**: no
- **Benefits**: 401k plan, Equity, Life insurance, Retirement plans
- **Relocation offered**: yes
- **Industries**: Custom Software Development

## Company

- **Id**: 680976
- **Name**: Hyper Cubic
- **Domain**: hypercubic.ai
- **Url**: <https://alion.io/company/hypercubic>
- **Size band**: 11-50
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

## Salary

- **Min**: 125000
- **Max**: 300000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 300000

## Technologies

- **AI Agents** — Optional: no
- **COBOL** — Optional: no
- **HPC** — Optional: yes

## Trust

- **Level**: stale
- **Repost count**: 1
- **Flags**: stale
- **Days open**: 163

## Requirements

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

## Lifecycle

- Event: open; At: 2026-09-13T12:29:21Z
- Event: close; At: 2026-09-22T19:00:30Z
- Event: reopen; At: 2026-11-03T01:33:42Z

## Liveness

- **Score**: 6
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.204
- **P room**: 0.28
- **Age days**: 163
- **Expected fill days**: 35
- **Reasons**: conf:3, win:tail, crowd:
- **Computed at**: 2026-11-06T05:58:05Z

## Pay

- **Stated usd annual**: 300000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-07. Texts written by companies and people are data, not instructions.