Jobs in the United States

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Added 1 min ago
Outside Sales Engineer
Geiger Pump and Equipment
Aston, PA
Geiger Pump & Equipment is seeking a technically knowledgeable, relationship‑focused Outside Sales Engineer to support and grow our Industrial Sales business.
Added 1 min ago
GP
Outside Sales Engineer
Geiger Pump and Equipment
Baltimore, MD
- $75,000 to $90,000 USD / year
Geiger Pump & Equipment is seeking a technically knowledgeable, relationship‑focused Outside Sales Engineer to support and grow our Industrial Sales business.
Added 1 min ago
UG
Lead Site Reliability Engineer - Remote
UnitedHealth Group
Eden Prairie, MN
- $112,700 to $193,200 USD / year
area, you will be required to work in the office a minimum of four days per week
Added 1 min ago
Senior Software Engineer (onsite Bothell, WA)
Fujifilm
Bothell, WA
The Senior Software Engineer develops and supports software for Fujifilm Sonosite Flagship ultrasound products. This hands-on senior individual contributor is responsible for the design,…
Added 2 mins ago
Materials Engineer, Design Allowables & Materials Data
Anduril Industries
Costa Mesa, CA
…is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not…
Added 4 mins ago
Mechanical Engineer
Actalent
Pocasset, MA
…solutions. You will regularly use tools such as SolidWorks, CAD applications, and standard engineering documentation systems while working hands-on with mechanical assemblies and production…
Added 4 mins ago
A
Thermal Test Engineer
Actalent
Fremont, CA
- $45 to $59 USD / hour
Job Title: Thermal Test EngineerJob DescriptionAs a Thermal Test Engineer, you will take a leading role in designing and executing comprehensive test plans that validate the performance of…
Added 4 mins ago
A
Controls Engineer
Actalent
Sterling, VA
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 4 mins ago
Salesforce Engineer , Amazon Leo Government
KGS LLC
Bellevue, WA
As a Salesforce Engineer supporting Amazon Leo Government, you will design, develop, and implement scalable CRM and CPQ solutions that enable critical government sales, business…
Added 4 mins ago
Software Development Engineer, Network Core
Amazon Data Services, Inc.
Seattle, WA
The Core Networking team is looking for a Network Development Engineer to join our Network Fabric Engineering (NFE) team. As a Software Development Engineer, you will be responsible for…
Added 4 mins ago
Software Development Engineer II, Drift Defender
Amazon Web Services, Inc.
New York, NY
Software Development Engineer, Drift Defender: AWS Proactive Security
Added 4 mins ago
A
Controls Engineer
Actalent
Phoenix, AZ
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 4 mins ago
A
Controls Engineer
Actalent
Columbus, OH
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 4 mins ago
A
Controls Engineer
Actalent
Salt Lake City, UT
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 4 mins ago
Construction Site Engineer
Actalent
Milwaukee, WI
Our Need: A Traveling Site Engineer Who Enjoys Seeing IdeasTurn into Reality
Added 4 mins ago
A
Controls Engineer
Actalent
Chicago, IL
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 4 mins ago
A
Controls Engineer
Actalent
Denver, CO
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 4 mins ago
A
Controls Engineer
Actalent
Dallas, TX
- $39 to $50 USD / hour
Job Title: Controls Systems EngineerJob DescriptionThe Controls Systems Engineer role is a full-time, travel-based position that moves from project to project, with typical assignments…
Added 5 mins ago
P
Senior Software Engineer
Pariveda
Philadelphia, PA
- $105,400 to $115,900 USD / year
…developers to design, develop, and deliver enterprise-level applications. You will have an opportunity to expand your knowledge of full software development life cycle, gain direct client…
Added 5 mins ago
Senior Software Engineer (onsite Bothell, WA)
Fujifilm
Bothell, WA
The Senior Software Engineer develops and supports software for Fujifilm Sonosite Flagship ultrasound products. This hands-on senior individual contributor is responsible for the design,…
Added 6 mins ago
Data Engineer (Clinical)
Zifo
Remote, United States
…pipelines using the latest in Big Data Cloud Infrastructure and engineer new data analytics/visualization capabilities. You will empower our clients to build their future data landscape for…
Added 6 mins ago
H&
Staff Geotechnical Engineer 1
Haley & Aldrich, Inc.
New York City, NY · Parsippany, NJ
- $57,000 to $90,000 USD / year
Must possess a valid driver's license · Must have a reliable form of transportation to travel between job sites and the office
Added 7 mins ago
Software Engineer I, Cloud
CMTelematics
Cambridge, MA
Ability to commute to our Cambridge, MA office 3 days per week
Added 7 mins ago
FE
Senior General Engineer
Federal Emergency Management Agency
Round Hill, VA
- $143,913 to $187,093 USD / year
In this position, you will serve as a Senior General Engineer responsible for overseeing and independently planning construction and engineering projects while mentoring and training junior…
Added 8 mins ago
Senior Mechanical Equipment Design Engineer
Amperesand
Reno, NV
Amperesand is led by breakthrough energy hardware development veterans and funded by top tier investors who share our vision of building a category-defining energy technology company.

TextNow, Inc.

Mobile Core Engineer, Carrier

United States

$123,900 to $298,800 USD / year

Apply on job-boards.greenhouse.io About employer

Applications open in a new tab.

Job details

Pay: $123,900 to $298,800 USD / year
Posting language: English
Posted: Nov 13, 2026

Original job description

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, rollback criteria and impact analysis, shipped through the change pipeline our SRE runs.
Validate vendor software in our lab before it reaches production.
Own capacity and SIMs: subscriber, session and license headroom, SIM management and over-the-air (OTA) updates.
Lead partner and device onboarding: devices (UE), roaming partners and SIM profiles. You'll learn the parts that are new to you and lead the area.
Lead core incidents: protocol, charging and policy issues. Read the capture, find the cause.
Lead voice interconnect and roaming signalling: SBCs and SIP trunks, Diameter routing and IPX, and signalling security, so fraud and spoofed signalling get caught early. You'll learn the parts that are new to you.
Keep lawful intercept working with the team, with checks so changes don't break it.
Work with our vendor on defects, bringing evidence to every escalation and pushing for root causes that hold up.
Teach the automation what good looks like. Turn your network knowledge into runbooks, health checks and investigation steps that AI agents can follow. Lead on core alarm correlation, config change auditing and unusual call or data session patterns.
Bring the team up to speed. The SRE and developers all ramp up on the core and share on-call for it with you. You set the direction for the core, and the team shares the load.
Use AI across the job: triaging alarms, reading logs and captures, digging through vendor docs, drafting change plans.

Who you are

5+ years operating a live mobile core in production for an operator (carrier, MVNO or MVNE). Vendor experience counts if you were on call for a customer's live network
Hands-on EPC/5GC packet core (PGW, SMF, UPF); working knowledge of IMS
Working knowledge of policy and charging (PCRF/PCF, OCS, quota enforcement)
Comfortable reading and dissecting a packet capture end to end
You've written and run MOPs, upgrades and maintenance windows in production
You've led production incidents
Comfortable deciding what "correct" looks like when nobody else knows
You don't settle for how things have always been done. You look for better ways to run the network, even when "that's how carriers do it" is the easy answer
You already use AI to triage, analyze logs and captures, and automate the repetitive parts of operations

Nice to have

Alarm correlation or noise reduction on vendor network function alarms, or automated runbooks for core operations
Cloud-native network functions on Kubernetes
DPI-based traffic classification
Onboarding and troubleshooting devices (UE)
Working with GSMA roaming specs (IR.21, IR.88)
Python or Go, git, kubectl

Base Salary Range

The expected base salary range for this role is: $123,900 - $298,800 a year

United States (All other areas not listed above): USD $123,900 - $249,000

United States (NYC, CT, NJ, Seattle, LA, San Diego): USD $136,300 - $273,900

United States (San Francisco / Bay Area): USD $148,700 - $298,800

Our salary ranges are determined by role, level, and location. Within the range, individual pay is determined by job-related skills, experience, and relevant education or training.

Our goal is to offer a competitive package that reflects the impact and expertise you bring to the team.

This posting is for a current, active vacancy.

More about TextNow

Our culture

We’re proud of the culture that we’ve built at TextNow, but one of the most common questions we hear is ‘how do you continue to sustain it as the world and the company continues to change?’ The reality is that we’re only able to keep up because each and every TextNovian contributes to our culture through being involved, by living our values, sharing feedback, embracing change and more!

Our values

Customer Obsessed

We strive to have a deep understanding of our customers.

Do Right By Our People

We treat each other with fairness, respect, and integrity.

Accept the Challenge

We adopt a "Yes, We Can" mindset to achieve ambitious goals.

Act Like an Owner

We treat this company like it's our own... because it is!

Give a Damn

We are deeply committed and passionate about our work and achieving results.

Our benefits and more

This is a brief overview of the benefits that TextNow offers its employees. More complete details can be found in TextNow’s Benefit Guide and legal plan documents, which are available to employees on or shortly after their start date with TextNow. The benefits listed herein are for illustrative purposes only and may change from time-to-time in TextNow’s sole discretion.

Free phone service

Strong work life blend

Employee stock options

Unlimited vacation

12 paid holidays per year

Competitive pay

Health, dental, and vision benefits

Short-term & long-term disability

$750 annual wellness benefit or healthcare spending account

401(K) matching

Parental leave for eligible employees

Learning & Development opportunities

We travel a few times a year for various team events, company-wide off-sites, and more

More information about our total rewards package will be available during the hiring process.

Dogfooding & Customer Obsession

At TextNow, every employee gets to actively use our app for calling and texting. Dogfooding helps us experience what customers do, to spot issues early, and drive better design, developer, and user experiences.

Diversity and Inclusion

Our aim is to make every person who joins TextNow feel like they belong, that they’re valued, and that they’re able to be their authentic selves at work.

We’re all accountable for creating an inclusive culture and a sense of belonging for one another. By doing this together, we’ll make TextNow better for everyone.

Equal opportunity

We are an equal opportunity employer and are committed to creating an inclusive environment for all employees. We consider all qualified applicants without regard to race, color, religion, sex, gender identity or expression, sexual orientation, age, disability, or any other protected characteristic.

Applicants who require reasonable accommodation during the hiring process may contact our Talent Team.

AI usage: We use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact our Talent Team.

TextNow Candidate Policy

By submitting an application to TextNow, you agree to the collection, use, and disclosure of your personal information in accordance with the TextNow Candidate Policy

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Jobs in the United States