Senior Software Engineer

VarianceSan Francisco, California

Apply with Sonara

Automate your job search with Sonara.

Submit 10x as many applications with less effort than one manual application.¹

Reclaim your time by letting our AI handle the grunt work of job searching.

We continuously scan millions of openings to find your top matches.

Overview

Schedule

Full-time

Career level

Senior-level

Remote

On-site

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Job Description

Role

At Variance, we are teaching machines to make the hardest judgement calls at scale. That means building AI agents for the high-precision gray-area of risk investigations, fraud, and identity reviews.

We’re a small, talent-dense team in San Francisco tackling problems that touch billions of events and entities. Our customers include Fortune 500 companies and global marketplaces, and we’re scaling systems that free millions of hours of human effort.

We’re looking for a Senior Software Engineer who wants to own product and technical decisions end-to-end. You’ll work directly with the founders to build and scale AI-powered systems where precision, speed, and trust matter deeply.

You’re a fit if you:

Have 4+ years of professional software engineering experience or equivalent
Care deeply about craftsmanship and have strong opinions about product quality, system design, and code quality
Thrive in high-ownership environments and want to drive projects end-to-end, from backend architecture to polished UI to production
Have strong fundamentals and can ramp quickly in our stack: React/Next.js, TypeScript, MySQL, and ClickHouse
Are comfortable making pragmatic technical tradeoffs in ambiguous, fast-moving environments
Have experience building reliable systems at scale and debugging issues in production
Enjoy collaborating closely with product, design, and leadership to turn fuzzy problems into shipped systems
Raise the bar for the team through technical leadership, mentorship, and high standards

What you’ll do

Own product features and systems end-to-end, from architecture and implementation to launch and iteration
Lead technical decisions across the stack, balancing speed, quality, maintainability, and scale
Build AI-powered interfaces and decision systems that operate in real time with high precision and user trust
Work directly with the founders on frontier problems in fraud, abuse, and risk
Scale our product into new industries and workflows through rapid pilots, live demos, and fast feedback loops
Improve engineering velocity by shaping internal tools, patterns, and standards
Help define the technical foundation of the company as we grow

Our culture

We believe in ownership, urgency, and craft. We enjoy spirited debate, wild ideas, and building things we're proud of. We're fully in-person in San Francisco.

What we offer

Competitive salary and meaningful equity
Health care: we offer platinum-level medical, dental, and vision insurance
Unlimited PTO, sick leave, and parental leave
Up to $100 in reimbursement for personal health & wellness expenses each month
401(k) plan

Automate your job search with Sonara.

Submit 10x as many applications with less effort than one manual application.

Apply with Sonara Apply manually

FAQs About Senior Software Engineer Jobs at Variance

What is the work location for this position at Variance?

This job at Variance is located in San Francisco, California, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.

What pay range can candidates expect for this role at Variance?

Employer has not shared pay details for this role.

What employment applies to this position at Variance?

Variance lists this role as a Full-time position.

What experience level is required for this role at Variance?

Variance is looking for a candidate with "Senior-level" experience level.

What benefits are offered by Variance for this role?

Variance offers following benefits: Health Insurance, Dental Insurance, Vision Insurance, Paid Vacation, Paid Sick Leave, Parental and Family Leave, Flexible/Unlimited PTO, 401k Matching/Retirement Savings, and Health & Wellness Programs for this position. Actual benefits may vary depending on the employer's policies and employment terms.

What is the process to apply for this position at Variance?

You can apply for this role at Variance either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.