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Principal Security Engineer

Smartsheet · Bellevue, WA · posted 76 days ago

In short: Principal Security Engineer at Smartsheet in Bellevue, WA, posted 76 days ago.

By AtiveSite · Published 07/11/2026 · Updated 09/11/2026 · Every figure is linked to its source below.

Smartsheetemployer

Bellevue, WAlocation

Cybersecuritysub-niche

76 days agoposted

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The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-08-25

Employer	Smartsheet
Location	Bellevue, Washington
Field	Technology › Cybersecurity
Level	not stated
Source category	Engineering - Developers
Posted	2026-08-25 (76 days ago)
Work arrangement	On-site at the location listed
Pay	Not published in the source listing

Job description

For over 20 years, Smartsheet has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human teams with AI agents. By orchestrating the work agents do best, automating manual tasks and uncovering insights at scale, we create the space for people to focus on what truly matters: judgment, creativity, and big thinking. That is magic at work, and it’s what we show up for every day.

AI is reshaping what product security can accomplish, both as a target and as a tool. We're looking for a Principal Security Engineer to own the highest-leverage application security work at Smartsheet: leading threat modeling and product security reviews across a modern SaaS platform used by millions of customers, serving as the team's technical authority on AI security risk, and setting the technical standard for application security practice across the engineering organization.

This is the most senior individual contributor role on the Application Security team. The expectation is not just depth: it is reach. You will engage product and engineering leadership directly, drive security requirements rather than advisory recommendations, and build team capability over time. If you are a security engineer who thinks upstream, builds threat models that generate concrete test scenarios and can translate technical findings into architecture decisions and business outcomes, this role is built for you.

This role reports to the Manager, Application Security and can be based in our Bellevue, WA office or remotely from anywhere in the US where Smartsheet is a registered employer.

You Will:

Lead Threat Modeling and Product Security Reviews: Own threat modeling and product security review as the team's primary upstream capability: build models from architecture and data-flow artifacts, derive concrete abuse cases and test scenarios, and drive security requirements into designs before they ship. Define and lead the product security review service (set the service model, triage criteria, and enforcement posture) and personally execute reviews for high-risk features with documented findings and remediation timelines. Engage product and engineering directly to establish security requirements at the design phase, with the technical credibility to influence architecture decisions.
Define AI Security Methodology and Drive It Across the Practice: Define how AI security risk is assessed, monitored, and mitigated across product, engineering, and third-party AI integrations, with recognized depth on the current threat landscape: LLM workflows, agentic pipelines, MCP-based integrations, and attack classes including prompt injection, indirect injection, and tool-calling authorization gaps. Own and evolve the AI-assisted security review capability: evaluate detection value, assess build-vs-buy tradeoffs, and shape toolchain coverage as Smartsheet's AI-integrated product surface scales.
Shape AppSec Technical Direction and SDLC Controls: Serve as the technical authority for the AppSec program's SDLC control surface (secure coding guidelines, CI/CD pipeline security strategy, and toolchain direction across SAST, SCA, secrets, and IaC scanning) with the depth to influence tool decisions and resolve standards decisions that span teams without primary operational ownership. Build runbooks, standards, and documentation that create consistency and reduce single-point-of-failure risk as the team scales.
Elevate Team Capability and Engineering Organization Influence: Mentor AppSec team members on threat modeling tradecraft and security review design, and serve as the trusted technical voice with product and engineering leadership, framing risk in terms that move architecture decisions. Your judgment shapes how the team prioritizes and how the broader organization understands and invests in application security.

You Have:

10+ years in application security with a track record of sustained technical leadership in product security or AppSec engineering, including direct ownership of threat modeling programs and security review services at scale.
Ability to own threat modeling as a systematic practice (STRIDE, data-flow and architecture diagram driven), producing concrete, actionable test scenarios and abuse cases, embedded into agile design cycles as a repeatable, lightweight practice.
Hands-on experience securing AI-integrated applications (LLM workflows, agentic systems, model APIs, MCP-based integrations) with fluency in the OWASP LLM Top 10 and current AI attack classes, plus experience using AI tooling to scale security review coverage.
Experience doing architecture review and targeted manual code review for complex SaaS features, with a track record of driving remediation requirements through to implementation with enough technical credibility to influence design decisions at the engineering leadership level.
Experience mentoring engineers into threat modeling ownership and attacker-mindset review design; demonstrated track record of establishing security requirements as design-phase gates and sustaining engagement with engineering teams to drive implementation.
Sufficient depth in SAST, SCA, secrets, and IaC scanning in modern CI/CD pipelines to credibly influence toolchain direction, resolve standards decisions that span teams, and shape secure coding standards without primary operational ownership; cloud security fundamentals sufficient to tie application controls to the infrastructure they run on.
Fluent in one or more modern languages (Python, Java, TypeScript/JavaScript, Go, or equivalent); comfortable reading production codebases to surface issues tooling misses and writing or extending automation others can maintain.
Expertise communicating risk and security requirements (written and verbal) clearly across audiences from engineering ICs through executive leadership; recognized as a trusted technical voice by partner teams.
Ability to build trusted relationships across engineering, product, and security organizations; earns influence through technical credibility and sustained engagement.
Legally eligible to work in the U.S. on an ongoing basis.

Nice to Have:

GitLab CI/CD experience, including security policy pipeline configuration and scanning job integration.
Experience building AI-assisted security tooling or LLM-integrated review workflows that scale security review coverage.
Penetration testing depth including exploit writing or vulnerability chaining to validate exploitability and prove real-world impact.
Public-facing security contributions: conference speaking, CVE credits, published research, or industry community recognition that reflects the technical authority expected at principal level.

Current US Perks & Benefits:

Employer subsidized medical/vision and dental coverage for full-time employees
401k Match to help you save for your future (50% of your contribution up to the first 6% of your eligible pay)
Monthly stipend to support your work and productivity
Flexible Time Away Program, plus Sick Time Off
US employees are automatically covered under Smartsheet-sponsored life insurance, short-term, and long-term disability plans
US employees receive 12 paid holidays per year
Up to 24 weeks of Parental Leave
Personal paid Volunteer Day to support our community
Opportunities for professional growth and development including access to Udemy online courses
Company Funded Perks, including a counseling membership, local retail discounts, and your own personal Smartsheet account
Teleworking options from any registered location in the U.S. (role specific)

Smartsheet provides a competitive base salary range for roles that may be hired in different geographic areas we are licensed to operate our business from. Actual compensation is determined by several factors including, but not limited to, level of professional, educational experience, skills, and specific candidate location. In addition, this role will be eligible for a market competitive incentive opportunity.

US Base Salary Pay Range$205,000—$257,500 USD

Get to Know Us:

At Smartsheet, your ideas are heard, your potential is supported, and your contributions have real impact. You’ll have the freedom to explore, push boundaries, and grow beyond your role. We welcome diverse perspectives and nontraditional paths—because we know that impact comes from individuals who care deeply and challenge thoughtfully. When you’re doing work that stretches you, excites you, and connects you to something bigger, that’s magic at work. Let’s build what’s next, together.

Equal Opportunity Employer:

Smartsheet is an Equal Opportunity (EEO) employer committed to fostering an inclusive environment with the best employees. It is our policy to provide equal employment opportunities to all qualified applicants in accordance with applicable laws in the US, UK, Australia, Germany, Costa Rica, Japan, Bulgaria, India, and Singapore. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.

If there are preparations we can make to help ensure you have a comfortable and positive interview experience, please let us know.

#LI-Remote

Explore around this job

Field: Technology Sub-niche: Cybersecurity All jobs at Smartsheet Jobs in Washington Jobs in Bellevue, WA Bellevue city guide Washington state guide King County economy

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About the role

This is a — role in the Technology field (Cybersecurity) at Smartsheet.

We could not match this job title to one occupation in the official wage statistics, so no pay estimate is shown. Pay is not in the source listing; ask the employer for the range and compare in the 240 job niches.

Does the pay work here? (estimate)

Gross salary a year Filing State income tax rate %

Estimate for a wage earner: 2026 federal brackets and standard deduction (IRS), Social Security 6.2% up to $184,500, Medicare 1.45% (+0.9% above $200,000 single / $250,000 married), and a state rate you set; set your own state tax rate. It ignores credits, pre-tax deductions, local taxes and benefits. Sources: IRS: tax year 2026 inflation adjustments · SSA wage base per Federal Register notice 2025-19763.

How to prepare and behave

This is editorial guidance, not information from the employer.

Read the whole description and match your examples to its requirements; use the same words the posting uses where they are true for you.
Research the employer before the interview: what it does, who its customers are and recent news; prepare two or three questions about the work.
Arrive early (or log in early for a video call), dress one step above the daily dress code, and test your camera and audio beforehand.
Answer with short stories: the situation, what you did and the result. Give numbers when you have them and never invent them.
Be honest about gaps; say what you did to learn and how fast you can close them.
Ask about the team, the first 90 days, how success is measured and the schedule; do not open with salary and time off.
When pay comes up, know the market range for the occupation and your lowest acceptable offer before you answer; ask for the full package in writing.
Send a short thank-you message within a day, mentioning one thing you discussed.
Have code, data work or projects you can show, and be ready to think aloud: many technical interviews test how you reason, not only the answer.

Know your rights as a candidate and an employee:

The city

The job is in Bellevue, WA. Below is what the official statistics say about living and working there.

How Bellevue compares. Among the 80 largest places in Washington, Bellevue is #5 by population, #5 for college degrees (#1 = most), #75 for rent (#1 = cheapest), #7 for household income (#1 = highest). Its county, King County, is #1 of 39 counties for average pay ($132,279).

The place in numbers

Bellevue has 151,847 residents (ACS 2020–2024), about 1.9% of the population of Washington. It covers 33 square miles of land, which works out to roughly 4,537 people per square mile. The median age is 38.5, about the same as the state median (38.5 against 38.3).

Housing

The median gross rent is $2,572 a month (rent plus utilities), 46% above the state median ($2,572 against $1,760). Over a year that is 18.6% of the median household income. US housing guidance treats housing as affordable when it takes 30% of income or less, so the typical household is under that line. The median home value is $1,340,300, which is 8.1 times the median household income ($165,576); a ratio above 5 usually means buying is out of reach without savings or a second income. 52.0% of households own their home, 18% below the state average (52.0% against 63.8%).

Work and pay

The Seattle-Tacoma-Bellevue, WA metropolitan area has 2,086,210 jobs in the BLS wage survey, and the median pay across all occupations is $72,610 a year, 42% above the national median ($72,610 against $50,980). The biggest occupation groups are office and administrative support (212,900 jobs, median $59,660); business and financial operations (201,160 jobs, median $101,950); computer and mathematical (194,970 jobs, median $156,000). The area is most specialised in computer and mathematical (2.8 times) and architecture and engineering (1.4 times), where the share of workers is well above the national share. The best-paying groups with at least 5,000 jobs are management ($168,110) and computer and mathematical ($156,000). In 2026M09 the unemployment rate of King County was 4.8%. 67.0% of residents aged 16 and over are in the labour force. The city lies in King County; its jobs, pay by industry and GDP are on the county page.

Getting around

Among workers, 45.6% drive alone, 5.1% use public transit, 4.5% walk, 35.5% work from home. 11.1% of workers commute 45 minutes or more, 34% below the state average (11.1% against 16.9%). Remote work is more common than in the state as a whole, which widens the set of employers a resident can work for without moving.

People and education

72.1% of adults aged 25 and over hold a bachelor's degree or higher, 82% above the state share (72.1% against 39.6%). 43.5% of residents were born outside the United States, 181% above the state share (43.5% against 15.4%). The poverty rate is 7.2%, 27% below the state rate (7.2% against 9.9%).

Climate

The warmest month is Aug, averaging 63°F (17.1°C), and the coolest is Dec at 34°F (1.0°C). About 1,737 mm (68 inches) of precipitation falls in a year; Nov is the wettest month (256 mm) and Jul the driest (27 mm). These values come from NASA satellite-based climatology on a grid of about 50 km, so they describe the wider area, not a weather station in the city.

Nearby cities to compare

Closest cities in this guide: Mercer Island (4 miles, similar rent); Sammamish (6 miles, rent 11% higher); Redmond (6 miles, rent 6% lower); Issaquah (6 miles, similar rent). Rent differences are against Bellevue; use the Compare tab to put any two cities side by side.

Full guide to Bellevue →Washington guide All jobs in Bellevue

Official links for Bellevue

These links go to official sources and open in a new window. The first one is the government's or company's own site as listed in Wikidata (property "official website"); check it before relying on it.

Where to live

CITY Official statistics Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year (via Census Reporter) · Data: ACS 2020–2024

Places within 50 miles (straight line) of Bellevue, WA that have a guide, with what living there costs. No pay estimate is shown because the title did not match one occupation.

Sort:

Place ⇅	Distance from the job city ⇅	Median rent ⇅	Median home value ⇅	Median household income ⇅	Commute 45+ min ⇅	Rent as % of occupation pay ⇅	Open jobs there ⇅
Bellevue, WA	0 mi	$2,572	$1,340,300	$165,576	11.1%	n/a	Jobs
Mercer Island, WA	4 mi	$2,502	$2,000,001	$219,069	8.7%	n/a	—
Sammamish, WA	6 mi	$2,857	$1,407,300	$239,690	18.2%	n/a	—
Redmond, WA	6 mi	$2,409	$1,167,800	$162,560	9.8%	n/a	Jobs
Issaquah, WA	6 mi	$2,590	$963,000	$154,669	12.8%	n/a	—
Kirkland, WA	7 mi	$2,401	$1,115,400	$150,414	10.8%	n/a	—
Renton, WA	8 mi	$1,998	$672,600	$100,432	22.0%	n/a	Jobs
Union Hill-Novelty Hill, WA	9 mi	$2,556	$1,218,500	$185,369	15.4%	n/a	—
Seattle, WA	9 mi	$2,030	$938,600	$123,860	13.9%	n/a	Jobs
Tukwila, WA	10 mi	$1,898	$489,000	$78,381	14.6%	n/a	—
Fairwood, WA	10 mi	$2,233	$733,200	$122,134	28.0%	n/a	—
Cottage Lake, WA	11 mi	$2,740	$1,230,700	$213,106	12.7%	n/a	—
Kenmore, WA	11 mi	$1,949	$920,800	$139,764	19.3%	n/a	—
Burien, WA	12 mi	$1,782	$638,800	$91,318	15.5%	n/a	—
Bothell, WA	12 mi	$2,346	$925,100	$140,427	16.6%	n/a	—
SeaTac, WA	13 mi	$1,660	$519,700	$81,104	14.7%	n/a	—
Shoreline, WA	14 mi	$1,985	$811,100	$112,751	17.1%	n/a	—
Kent, WA	15 mi	$1,909	$587,800	$92,302	22.9%	n/a	—
Bothell West, WA	15 mi	$2,511	$824,900	$153,449	29.0%	n/a	—
Mountlake Terrace, WA	15 mi	$2,004	$667,300	$107,687	17.8%	n/a	—

Career paths

We could not match this title to one occupation, so here are the other sub-niches in Technology, where your skills may carry over:

Data, analytics and AI (3366) Software engineering (4089) Cloud, IT and infrastructure (1040) Product management (836)

Distances

CITY Calculation (straight line) Source: U.S. Census Bureau Gazetteer (coordinates) · Data: 2024

How far Bellevue, WA is from the 20 largest US cities, in straight-line miles (not driving distance). Click a column to sort.

Sort:

From ⇅	Straight-line distance (miles) ⇅	Population of that city ⇅
Seattle, WA	9 mi	754,195
San Francisco, CA	683 mi	830,235
San Jose, CA	712 mi	990,138
Los Angeles, CA	958 mi	3,857,263
Denver, CO	1,016 mi	718,877
San Diego, CA	1,055 mi	1,389,526
Phoenix, AZ	1,102 mi	1,642,323
Oklahoma City, OK	1,515 mi	697,125
Fort Worth, TX	1,650 mi	963,194
Dallas, TX	1,673 mi	1,307,930
Chicago, IL	1,723 mi	2,711,226
Austin, TX	1,760 mi	979,539
San Antonio, TX	1,776 mi	1,479,835
Indianapolis, IN	1,860 mi	885,860
Houston, TX	1,880 mi	2,328,253
Columbus, OH	2,000 mi	914,802
Charlotte, NC	2,274 mi	903,844
Philadelphia, PA	2,365 mi	1,579,706
New York, NY	2,399 mi	8,483,844
Jacksonville, FL	2,443 mi	977,670

Nearby cities with open jobs (within 120 miles)

Sort:

City ⇅	Straight-line distance ⇅	Open jobs ⇅
Redmond, WA	6 mi	385
Seattle, WA	9 mi	887
Lynnwood, WA	17 mi	5

The employer

Smartsheet is the employer in this listing. See all its open jobs here →

We do not hold headcount or revenue for this employer. Check its careers site and, if it is listed on a stock exchange, its public filings (SEC EDGAR search).

What it is like to work at a company (culture, schedules, benefits) is not in the source data, so we do not describe it. Read the description and ask the questions under "How to prepare".

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FAQ

What is the Principal Security Engineer job at Smartsheet?

A private-sector role in technology (cybersecurity) listed 76 days ago. The full description is on this page and on the employer's page.

Where is this job?

Bellevue, WA.

How do I apply?

Use the "View this job and apply on the employer's page" button. AtiveSite does not receive applications.

How much does it pay?

The listing does not publish pay, and we could not match the title to one official occupation.

What is the cost of living there?

Median rent in Bellevue is $2,572 a month and median household income $165,576 (ACS 2020–2024).

How old is this listing?

It was posted on 2026-08-25 (76 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse cybersecurity jobs in Washington.

Sources and terms

Job data: Smartsheet careers page public feed (listing dated 2026-08-25). The job disappears from this site when it disappears from the source.
Wages and projections: BLS OEWS (May 2025) and Employment Projections 2025–35.
City and county figures: Census Bureau ACS 2020–2024, BEA, BLS QCEW and LAUS, NASA POWER climatology; distances from Census Gazetteer coordinates.

AtiveSite is not affiliated with or endorsed by the employer or any government agency, and does not process applications. Verify every detail with the employer before acting.

Sources

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