Demo

Senior/Staff Software Engineer

Maxima
San Mateo, CA Full Time
POSTED ON 11/18/2025
AVAILABLE BEFORE 5/16/2026

About Us:

Maxima is the first agentic AI platform for enterprise accounting, purpose built to deliver SOX compliant, real time close. Our founders have experience coming from both sides of the problem: from overseeing the finance org at Rubrik, to building month-end close systems at Twitter and Netflix. We have raised the largest seed in history in the accounting space from Kleiner Perkins & Audacious Ventures and are backed by finance leaders at companies such as Rippling, OpenAI, and UI Path.


Role Overview:

As a founding engineer, you will be at the core of building our product from the ground up. You’ll have the opportunity to shape both the front-end and back-end architecture, working closely with the founders and early customers to solve complex financial problems.


Key Responsibilities:

  • Lead full-stack development of key product features such as reconciliations, flux analysis, and accruals automation


  • Build and maintain robust integrations with financial systems including ERPs, HRIS, Procurement software, and CRMs


  • Design and implement core components of the backend platform, including the jobs framework, flexible data ingestion, and complex financial modeling


  • Ensure best practices in software development, including code quality, automated testing, and CI/CD


  • Collaborate with the founding team on product strategy, feature prioritization, and customer feedback loops


  • Build and maintain planning and agentic workflows using the state of the art large language models


  • Collaborate on technical decisions on scalability and security


  • Help build the engineering team and culture


Required Skills:

  • Bachelor’s or master’s degree in computer science or related field


  • 4 years of experience in full-stack development, preferably with early-stage startups


  • Strong experience building financial systems is preferred


  • Proficiency in front-end technologies such as React, NextJS


  • Strong back-end development experience with Go or similar technologies


  • Strong experience with relational databases and modeling


  • Familiarity with cloud infrastructure (AWS, GCP)


  • Ability to understand basic machine learning concepts and quickly ramp up on


  • Startup mentality with a passion for rapid prototyping, testing, and iterating on feedback


  • Fintech or accounting software experience is a plus


Why Join Us:

  • Be a core part of a mission-driven startup looking to transform accounting processes.


  • Work in a fast-paced environment where your decisions directly impact product direction and company growth.


  • Opportunity to grow with the company and build a technical team from the ground up.


  • Competitive salary, equity, and benefits (401k, unlimited PTO)


Join us in revolutionizing accounting month-end close and making accounting operations more efficient for businesses everywhere!

Salary.com Estimation for Senior/Staff Software Engineer in San Mateo, CA
$167,962 to $201,905
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