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Symmetry · 17 hours ago

Staff Software Engineer - Payroll Platform

Syracuse-Auburn Area

Full-time

Hybrid

Lead/Staff

$163K/yr - $204K/yr

8+ years exp

Symmetry is the payroll infrastructure for software & payroll platforms powering the paychecks of over 64 million workers each year. They are seeking a Staff Software Engineer to join Gusto’s Payroll Platform team, focusing on building backend product infrastructure and designing APIs for payroll experiences. The role involves collaborating with various teams to enhance payroll capabilities and ensure compliance.

Bookkeeping and PayrollComputerFinTechInternetSoftware

Growth Opportunities

Responsibilities

Design, build, and maintain backend services and APIs that support core payroll workflows and are consumed by multiple Gusto engineering teams

Own a primary domain within the Payroll Platform, taking responsibility for system health, correctness, scalability, and long-term evolution

Act as a technical partner to other engineering teams, collaborating closely to understand their needs, guide platform adoption, and co-design solutions that scale across use cases

Author and drive architecture and design documents, contributing to technical direction while balancing near-term delivery with long-term platform goals

Improve system performance, reliability, and observability as we scale payroll processing for hundreds of thousands of businesses

Collaborate cross-functionally with Product, Design, Data, Compliance, and Operations to deliver compliant and customer-impacting solutions

Routinely leverage AI-assisted development tools to accelerate development, improve code quality, and documentation, and help normalize and spread effective usage across the team

Qualification

Backend developmentAPI designSystem designPerformance optimizationScalabilityAI-assisted developmentReliabilityTechnical partnershipRubyCollaboration

Required

+ 8+ years of professional software engineering experience, with a strong focus on backend development

Experience building and scaling internal platforms, shared services, or foundational APIs that support multiple product teams

Proven ability to work independently on ambiguous problems, from understanding the business need through delivery and iteration

Strong system design skills, including experience with performance optimization, scalability, and reliability in production systems

Actively uses AI-assisted development tools (LLMs, Claude Code, Cursor) in daily engineering work and is comfortable helping teams adopt effective, responsible usage

Experience collaborating across teams and acting as a technical partner in a product-focused engineering organization

Proficiency in one or more backend programming languages; experience with Ruby is strongly preferred but not required