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Software Engineer Compiler I (Full Time) – United States
Cisco
Austin, TX · San Jose, CA · Milpitas, CA · Dallas, TX · RTP, NC
- Full-time
As a Compiler Software Engineer II, you will architect, implement, and optimize advanced compilation, code analysis, and debugging toolchains that power Cisco's core networking platforms.…
Added 1 min ago
Senior Software Engineer – Splunk Framework & Runtime Services
Cisco Systems, Inc.
Remote, United States
As a Senior Software Engineer on the Framework & Runtime Services team, you’ll design and develop the foundational tools, frameworks, and services that enable Splunk engineering teams to…
Added 1 min ago
Software Engineer in Test 182143
CTI Consulting
westlake, TX
your knowledge of testing and testability to influence better software
Added 4 mins ago
Senior Software Engineer
Fusion Technology
Hanover, MD
10+ years of experience as a software engineer within the DoD
Added 4 mins ago
Senior DevOps Engineer
Fusion Technology
United States
…Information Services Division's Headquarters. Founded in 2007 by an Engineer-by-trade, Fusion Technology dedicates our valuable resources to providing comprehensive IT services and…
Added 5 mins ago
Software Engineer, Infrastructure Applications
Apple
Sunnyvale, CA
We are currently seeking a highly motivated Infrastructure Software Engineer. The ideal candidate should possess a strong background in both Java Spring Boot backend development and React…
Added 6 mins ago
GA
Senior Technical Sourcer
GC AI
Remote, United States
- $120,000 to $190,000 USD / year
- A record of sourcing senior and staff-level software engineers, including hard-to-fill AI/ML and infrastructure roles.
Added 6 mins ago
MS
Vice President, Lead Cybersecurity Engineer
Morgan Stanley
Alpharetta, GA · Alpharetta
- $185,000 USD / year
Telecommuting permitted up to 2 days per week
Added 6 mins ago
MS
Director, Lead Cybersecurity Engineer
Morgan Stanley
Alpharetta, GA · Alpharetta
- $191,000 USD / year
Telecommuting permitted up to 2 days per week
Added 7 mins ago
Software Engineer
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Advanced Software Engineer
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Manassas, VA
As a software engineer you’ll be a member of a cross functional team responsible for developing cybersecurity software for the US Navy submarine and surface fleet. This team is responsible…
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Electrical Engineer 1
United Launch Alliance
Centennial, CO
As an Electrical Engineer on the ULA Airborne Avionics team, you will be joining a team of Electrical/Avionics Engineers responsible for developing, testing, and integrating hardware and…
Added 7 mins ago
Flight Controls Engineer 2
United Launch Alliance
Centennial, CO
As a Flight Controls Engineer on the ULA Airborne Avionics team, you will be a key Technical Engineer with a strategic supplier responsible for developing, testing, and integrating hardware…
Added 8 mins ago
Structures Lead Mechanical Design Engineer
GE Aerospace
Evendale, OH
Clearance: Must have or have the ability to obtain a U.S
Added 9 mins ago
Senior Cloud Infrastructure Engineer
QuVa - Advancing Healthcare Possibilities
Sugar Land, TX
The Senior Cloud Infrastructure Engineer serves as a senior technical leader supporting Quva's hybrid cloud environment spanning private cloud, Microsoft Azure, Amazon Web Services (AWS),…
Added 9 mins ago
Staff Systems Engineer
nLIGHT
Longmont, CO
All applicants must possess or be qualified to obtain a U.S
Added 9 mins ago
Space Systems Engineer
CACI
Sterling, VA · Sarasota, FL · Denver, CO · Sterling · Sarasota · Denver
We are seeking a highly skilled and motivated Systems Engineer who excels at decomposing complex problems to support our client in designing and actualizing the next generation space…
Added 9 mins ago
Sr. Consulting Engineer (Federal - TS/SCI and FSP required)
Neo4j
Washington, DC
Job Title: Sr. Federal Consulting Engineer (TS/SCI and FS Poly required)
Added 9 mins ago
Depot Engineer
Live Nation Worldwide, Inc.
Austin, TX
…for the deployment, management, and support of hardware and software used across client venues and live events. This includes asset lifecycle management, configuration, and logistics to…
Added 11 mins ago
Principal Video Engineer-Xumo
Comcast (CC) of Willow Grove
OR
This role entails leading the end-to-end development of scalable, secure, and high-performing software applications and resilient, low-latency media workflows. The position spans the full…
Added 11 mins ago
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Electrical Engineer (HYBRID - Arlington, VA)
Chinook Systems
Arlington, VA
- $120,000 to $180,000 USD / year
As an Electrical Engineer on our government-focused team, you will be primarily focused on performing code enforcement reviews and inspections. You will be adept at interpreting and…
Added 11 mins ago
CS
Manufacturing Engineer I (Full Time) - United States
Cisco Systems, Inc.
Maynard, MA
- Full-time
As an Associate Manufacturing Engineer, you'll help bring innovative optical products from development into high-volume manufacturing. You'll collaborate with cross-functional engineering…
Added 12 mins ago
Assistant Professor of Instruction
University of Texas Arlington
TX
Candidates for assistant/associate/full professor of instruction must have earned (by the start date) a Ph.D · Candidates for lecturer/senior lecturer positions must have earned (by the start date) a M.S
Added 12 mins ago
MS
Director, Lead Cybersecurity Engineer
MS Services Group, Inc.
Alpharetta, GA
- $191,000 USD / year
Telecommuting permitted up to 2 days per week
Added 12 mins ago
MS
Vice President, Lead Cybersecurity Engineer
MS Services Group, Inc.
Alpharetta, GA
- $185,000 USD / year
Telecommuting permitted up to 2 days per week

TextNow, Inc.

Mobile Core Engineer, Carrier

United States

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

Apply on job-boards.greenhouse.io About employer

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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