Senior Software Engineer, Developer Tools

The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-09-22

Job description

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. 

At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. 

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

The App Test team builds the test automation platform that enables Roblox engineers to deliver reliable, high-quality experiences across the Roblox Universal App. Our systems span test frameworks, execution and orchestration, device-farm infrastructure, debugging tools, dashboards, and the supporting infra that power end-to-end testing across mobile, desktop, console, and VR.

As a Senior Software Engineer on the App Test team, you will design, build, and scale tools and  services that power the test automation lifecycle. You will work on foundational systems that enable engineers to author, select, execute, debug, maintain, and triage tests efficiently, while helping evolve our platform toward an AI-native testing experience.

You will have the opportunity to solve complex engineering problems across distributed systems, cross-platform automation, developer tooling, and AI orchestration. Your work will help teams identify regressions earlier, improve release confidence, and deliver software faster without compromising quality.

You will:

• Build and scale test automation infrastructure: Design, implement, and evolve the frameworks, runners, orchestration services, device-farm integrations, and supporting infrastructure that power reliable end-to-end testing across Roblox's supported platforms
• Advance the AI-native test lifecycle: Develop intelligent tooling that improves test authoring, selection, execution, maintenance, and failure triage, using AI to reduce manual effort and make testing more accessible and effective
• Develop test orchestration and intelligence: Build systems that connect test planning, test selection, execution, and failure analysis, enabling more efficient use of test infrastructure and faster feedback to engineers
• Improve test reliability and debugging: Build tools and services that improve test stability, observability, failure diagnosis, and maintenance across a large and evolving test ecosystem
• Shift quality earlier in the development lifecycle: Integrate automated quality checks and actionable test feedback into development and CI/CD workflows to help teams identify and resolve issues earlier
• Drive projects end to end: Take ownership of technical initiatives from problem definition, design, and implementation through production deployment, adoption, measurement, and continuous improvement
• Collaborate across engineering: Partner with application, platform, QA, infrastructure, and developer productivity teams to develop scalable solutions that address the needs of engineers across Roblox

You have:

• Software engineering experience: Experience designing, building, testing, and operating production software, with a track record of solving complex engineering problems in large codebases
• Programming fundamentals: Strong programming skills in C++, Python, Go, or another modern programming language, with an emphasis on writing maintainable, reliable, and well-tested code
• Automation and infrastructure experience: Experience building test automation frameworks, developer tools, distributed systems, CI/CD infrastructure, or other engineering platforms
• Systems and architecture: Experience designing and evolving services or frameworks, with an understanding of scalability, reliability, observability, and operational excellence
• Cross-platform engineering: Experience developing or supporting systems across multiple platforms or environments, such as Windows, macOS, Linux, Android, or iOS
• Ownership and collaboration: Ability to take ownership of projects, work effectively across teams, communicate technical decisions clearly, and deliver solutions that improve the experience of engineers who use your tools

Nice to have

• Experience with cross-platform test automation frameworks such as Appium, Selenium, or comparable tools, including mobile, desktop, or game testing
• Experience building CI/CD, release engineering, developer productivity, or internal platform systems
• Experience applying LLMs, agents, or other AI techniques to developer tools, including test authoring, intelligent test selection, test maintenance, failure analysis, or automated debugging
• Experience working with large-scale software development workflows and integrating automated quality checks into the development lifecycle

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.

Explore around this job

Field: Technology Sub-niche: Software engineering All jobs at Roblox Jobs in California Jobs in San Mateo, CA San Mateo city guide California state guide San Mateo County economy Pay for this occupation (BLS) All 87 open jobs for this occupation

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About the role

This is a — role in the Technology field (Software engineering) at Roblox.

The closest occupation in the official wage statistics is Software developers (a match by name, so treat it as an estimate). Nationally its median pay is $135,980 a year (BLS OEWS, May 2025), employment is projected to change by +10.2% between 2025 and 2035, and the typical entry route is: Bachelor's degree.

In the San Francisco-Oakland-Fremont, CA area the median for this occupation is $186,640 a year with 69,030 jobs (BLS OEWS, May 2025). This is a statistic for the occupation, not an offer from this employer.

Pay by state and metro area for this occupation →

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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:

• U.S. Equal Employment Opportunity Commission: prohibited employment practices
• U.S. Department of Labor: Wage and Hour Division
• CareerOneStop (U.S. Department of Labor): job search help, interview tips and resumes
• USA.gov: avoiding job scams

The city

The job is in San Mateo, CA. Below is what the official statistics say about living and working there.

How San Mateo compares. Among the 145 largest places in California, San Mateo is #72 by population, #132 for rent (#1 = cheapest), #28 for college degrees (#1 = most), #29 for household income (#1 = highest). Its county, San Mateo County, is #2 of 58 counties for average pay ($196,441).

The place in numbers

San Mateo has 103,105 residents (ACS 2020–2024), about 0.3% of the population of California. It covers 12 square miles of land, which works out to roughly 8,497 people per square mile. The median age is 38.3, about the same as the state median (38.3 against 37.9).

Housing

The median gross rent is $3,077 a month (rent plus utilities), 51% above the state median ($3,077 against $2,036). Over a year that is 24.1% 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 $1,618,700, which is 10.5 times the median household income ($153,504); a ratio above 5 usually means buying is out of reach without savings or a second income. 49.9% of households own their home, 11% below the state average (49.9% against 55.9%).

Work and pay

The San Francisco-Oakland-Fremont, CA metropolitan area has 2,373,920 jobs in the BLS wage survey, and the median pay across all occupations is $74,260 a year, 46% above the national median ($74,260 against $50,980). The biggest occupation groups are office and administrative support (226,320 jobs, median $62,120); management (223,100 jobs, median $176,340); business and financial operations (207,030 jobs, median $112,960). The area is most specialised in computer and mathematical (1.9 times) and life, physical, and social science (1.8 times), where the share of workers is well above the national share. The best-paying groups with at least 5,000 jobs are management ($176,340) and computer and mathematical ($167,770). In 2026M09 the unemployment rate of San Mateo County was 3.9%. 68.9% of residents aged 16 and over are in the labour force. The city lies in San Mateo County; its jobs, pay by industry and GDP are on the county page.

Getting around

Among workers, 57.7% drive alone, 4.9% use public transit, 2.7% walk, 24.8% work from home. 15.8% of workers commute 45 minutes or more, 19% below the state average (15.8% against 19.4%). 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

57.8% of adults aged 25 and over hold a bachelor's degree or higher, 56% above the state share (57.8% against 37.1%). 36.2% of residents were born outside the United States, 34% above the state share (36.2% against 27.0%). The poverty rate is 8.2%, 32% below the state rate (8.2% against 12.0%).

Climate

The warmest month is Sep, averaging 61°F (16.0°C), and the coolest is Jan at 51°F (10.7°C). About 515 mm (20 inches) of precipitation falls in a year; Dec is the wettest month (115 mm) and Jul the driest (2 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: Foster City (3 miles, rent 14% higher); Belmont (3 miles, rent 7% lower); Burlingame (4 miles, rent 9% lower); San Carlos (5 miles, rent 7% lower). Rent differences are against San Mateo; use the Compare tab to put any two cities side by side.

Full guide to San Mateo →California guideAll jobs in San Mateo

Official links for San Mateo

• Official website of San Mateo: cityofsanmateo.org
• Census Bureau data profile for San Mateo
• Official website of San Mateo County: smcgov.org
• Official state website: ca.gov
• BLS Economy at a Glance: California

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

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Career paths

Occupations close to Software developers in the official classification, with pay, outlook and whether there are open jobs for them on this site right now.

Distances

This job has no single city we can place on the map (remote, flexible or unmatched location), so no distance table is shown. Browse all Technology jobs with distances from any of the 20 largest cities.

The employer

Roblox 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".

Other open jobs at Roblox

Similar jobs

Same sub-niche: Software engineering

More jobs in San Mateo, CA

All Software engineering jobs → · All Technology sub-niches →

FAQ

What is the Senior Software Engineer, Developer Tools job at Roblox?

A private-sector role in technology (software engineering) listed 48 days ago. The full description is on this page and on the employer's page.

Where is this job?

San Mateo, CA.

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. For the closest occupation (Software developers) the national median is $135,980 a year (BLS OEWS, May 2025).

What is the cost of living there?

Median rent in San Mateo is $3,077 a month and median household income $153,504 (ACS 2020–2024).

How old is this listing?

It was posted on 2026-09-22 (48 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse software engineering jobs in California.

Sources and terms

• Job data: Roblox careers page public feed (listing dated 2026-09-22). 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

• BLS OEWS (wages and employment by occupation, May 2025)
• BLS Employment Projections 2025–35
• BLS Local Area Unemployment Statistics
• BLS JOLTS
• BLS State and Metro Area Employment
• Census Bureau American Community Survey (via Census Reporter)
• BEA GDP by state and Regional Price Parities
• IRS 2026 tax adjustments
• U.S. Department of Labor, minimum wage by state
• Tax Foundation state income tax rates 2026
• USAJOBS
• USCIS
• U.S. Department of State, visas
• NASA POWER climatology
• GeoNames / Census Gazetteer (coordinates)