Sr. Software Engineer - Platform Permissions

AppFolio, Inc.; Santa Barbara, Northern (CA, KY); Hybrid; USD 138,000 - 190,000; Full time

Job summary

AppFolio Senior Software Engineer - Platform Permissions will join a team that designs and operates the authorization platform powering roles, policies, and access checks across the product suite.

You will drive performance improvements for permission checks, build interfaces and tooling for teams to add access control, migrate legacy logic, and mentor engineers while delivering safe, observable changes in a hybrid work environment.

Qualifications

• 7+ years of professional software engineering experience building and operating production systems.
• Fluency with AI coding agents and willingness to use AI for development.
• Depth in Ruby on Rails, Go, or React with TypeScript, or the ability to learn quickly.
• Track record designing and owning non-trivial Platform systems end-to-end.

Responsibilities

• Design, build, and operate the authorization platform—the roles, policies, and access checks that other teams rely on.
• Improve the speed and reliability of permission checks as usage grows and set performance/availability goals.
• Build interfaces, libraries, and tooling for teams to add access control to their features.
• Lead the migration of legacy permissions logic to the modern authorization platform.
• Provide thoughtful design reviews and clear written proposals to guide team decisions.
• Mentor engineers and partner with product, security, and engineering teams on access-control needs.

Skills

Ruby on Rails

Go

React with TypeScript

AI coding agents

Security-sensitive systems

Technical communication

Mentorship

Job description

Sr. Software Engineer - Platform Permissions

Software EngineeringSanta Barbara,CaliforniaDallas,TexasSan Diego,CaliforniaRemote - San Francisco,CARemote - Denver,CORemote - Atlanta,GARemote - Chicago,ILRemote - Washington DC,United States

AppFolio is more than a company. We're a community of dreamers, big thinkers, problem solvers, active listeners, and multipliers. At every opportunity, we set the pace while delivering innovation built to carry real estate into the future. One in which every experience feels effortless, yet meaningful. Where customers are empowered to take on any opportunity. We show up as one team, connected by our values to be a force for good. Because together, we have the power to create extraordinary outcomes for our customers, our communities, and ourselves.

The Senior Software Engineer on the Permissions team will help build the authorization platform - the roles, policies, and access checks that other teams build on top of

Your impact

• Design, build, and operate the authorization platform - the roles, policies, and access checks that other teams build on top of
• Improve the speed and reliability of permission checks so they stay fast as usage grows, and set the performance and availability goals that keep them there
• Build the interfaces, libraries, and tooling that other engineering teams use to easily add access control to their own features, so they can move quickly and safely
• Lead the migration of older, hard-to-maintain permissions logic onto the modern authorization platform, reducing risk and complexity along the way
• Raise the technical bar through thoughtful design reviews, pragmatic code review, and clear written proposals that help the team make good decisions together
• Mentor engineers, share context generously, and partner with product, security, and engineering teams to turn ambiguous access-control needs into simple, well-understood systems
• Own quality end-to-end - automated testing, controlled rollouts (with feature flags), and observability - so authorization changes ship safely without disrupting the teams that depend on them

Qualifications

• Work comfortably across the stack - backend services and customer-facing interfaces - and pick up new languages and tools as needed
• Diagnose and improve performance and reliability in systems that serve high request volumes
• Drive to root causes and cut unnecessary complexity rather than patch symptoms
• Experience with authorization, authentication, or other security-sensitive systems is a plus
• Communicate proactively and clearly in writing and conversation, explaining technical trade-offs to both engineers and non-engineers
• Collaborate generously across your team and with engineering teams org-wide - giving and receiving feedback well and helping others do their best work
• Prioritize team delivery over individual productivity

Must have

• 7+ years of professional software engineering experience building and operating production systems
• Fluency with AI coding agents - experience with any of the available agents, understanding of common concepts, and willingness to learn and utilize AI for building
• Depth in some of the languages we use - Ruby on Rails, Go, or React with TypeScript - or the ability and desire to become effective in them quickly
• A track record of designing and owning non-trivial Platform systems end-to-end

Location

Location Find out more about our locations by visiting our site .

All late-stage candidates complete an in-person meeting with an AppFolian as part of our hiring process.

The base salary that we reasonably expect to pay for this role is $138,400 - $190,300

The actual base salary for this role will be determined by a variety of factors, including but not limited to the candidate’s skills, education, experience, etc.

Please note that base pay is one important aspect of a compelling Total Rewards package. The base pay range indicated here does not include any additional benefits or bonuses/commissions that you may be eligible for based on your role and/or employment type. Regular full-time employees are eligible for benefits - see here .

About AppFolio

AppFolio is the technology leader powering the future of the real estate industry. Our innovative platform and trusted partnership enable our customers to connect communities, increase operational efficiency, and grow their business. For more information about AppFolio, visit appfolio.com.

Why AppFolio

• Grow | We enable a culture of high performance, where delivering results is recognized by opportunities for growth and compelling total rewards. Our challenging and meaningful work drive the growth of our business, and ourselves.
• Learn | We partner with you to realize your potential by investing in you from the start. We're cultivating a team of big thinkers through coaching and mentorship with our best-in-class leaders, and giving you the time and tools to develop your skills.
• Impact | We are creating a world where living in, investing in, managing, and supporting communities feels magical and effortless, freeing people to thrive. We do this by innovating with purpose while cultivating a culture of impact. We learn as much from each other as we do our customers and our communities.
• Connect | We excel at hybrid work by fostering an environment that feels flexible, personal and connected, no matter where we are. We create space to fuel innovation and collaboration, and we come together to celebrate, connect, and succeed.
• Paddle as One.

Learn more at appfolio.com/company/careers

Statement of Equal Opportunity

At AppFolio, we value diversity in backgrounds and perspectives and depend on it to drive our innovative culture. That's why we're a proud Equal Opportunity Employer, and we believe that our products, our teams, and our business are stronger because of it. This means that no matter what race, color, religion, sex, sexual orientation, gender identification, national origin, age, marital status, ancestry, physical or mental disability, or veteran status, you're always welcome at AppFolio.