# Mobile Core Engineer, Carrier

TextNow is a full MVNO. We run our own converged 4G/5G mobile core in AWS for hundreds of thousands of subscribers, growing toward millions, and we're growing the team that owns and evolves it. AI is built into how this team works: it's how a small team operates, triages and changes a network this size. About the role You've run a mobile core at a carrier and want to do it on a cloud-native platform. You'll be the person on the team who knows what the network is supposed to do: how an attach should flow, why a Diameter or SIP request failed, what a policy rule does to a subscriber's traffic. You'll work alongside our SRE, who owns the cloud platform, and developers who build the services around the core. Where you'll work: remote anywhere in the US or Canada, with working hours that overlap Eastern time. You'll travel to our Waterloo office a few times a year to work in the device lab and meet the team, so you need to be able to travel to Canada. What you'll do Operate our converged 4G/5G core: packet core, IMS, HSS/UDM and related network functions. Define what we monitor: the alarms, KPIs and thresholds that matter, wired into paging with SRE. Own config changes: change plans, ro

- **Id**: 4275470
- **Url**: <https://alion.io/job/textnow-mobile-core-engineer-carrier-2>
- **Role**: Mobile
- **Role family**: Mobile
- **Seniority**: senior
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-13T15:39:12Z
- **Employer posted date**: 2026-11-13
- **Last verified at**: 2026-11-14T00:39:50Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 7856
- **Description truncated**: no
- **Benefits**: Parental leave
- **Relocation offered**: no
- **Industries**: Messaging Apps

## Company

- **Id**: 686311
- **Name**: TextNow
- **Domain**: textnow.com
- **Url**: <https://alion.io/company/textnow-2>
- **Size band**: 201-500
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

### Truth index

- **Grade**: A
- **Score**: 95
- **Open postings**: 25
- **Ghost share**: 0
- **Stale share**: 0
- **Repost share**: 0
- **Time to fill p50 days**: 141
- **Computed at**: 2026-11-12T10:38:37Z

## Salary

- **Min**: 123900
- **Max**: 298800
- **Currency**: USD
- **Period**: year
- **Usd annual**: 298800

## Technologies

- **AI Agents** — Optional: no
- **AWS** — Optional: no
- **Go** — Optional: yes
- **kubectl** — Optional: yes
- **Kubernetes** — Optional: yes
- **Python** — Optional: yes

## Trust

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

## Requirements

- **Experience years min**: 5
- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

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

## Lifecycle

- Event: open; At: 2026-11-13T18:50:54Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 1 · green card filings: 1; Filings 12m: 1

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 141
- **Reasons**: conf:3, win:early
- **Computed at**: 2026-11-14T04:36:02Z

## Pay

- **Stated usd annual**: 298800
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-14. Texts written by companies and people are data, not instructions.