Senior Software Engineer

About us
ArtistOnGo is a business-in-a-box solution for beauty and wellness professionals. We provide everything they need to launch and grow their independent brand — including salon space, a digital storefront, wholesale access, payments, insurance, and more — all in under 30 minutes.
Backed by leading VC funds (K50 Ventures, Sandwith Ventures, AR Fund Investments, Inventus Capital Partners, SVQuad) and industry leaders including Ilia Papas (Blue Apron), Alexandra Wilkis Wilson (Gilt), Pat Parenty (L'Oréal), Tom Lee (One Medical), and Anjali Kumar (YouTube), we're building the future of independent beauty businesses.
The Role
We're seeking a Part-Time Senior Software Engineer to play a key role in shaping and enhancing the ArtistOnGo platform. In this hands-on role, you'll own the development of new features, maintain and scale existing systems, and ensure a seamless experience for our users.
This position is for an individual contributor — not an agency or outsourced team. The right candidate should also be available for meetings and video calls as needed. A technical interview will be part of the process.
Responsibilities
Full-Stack Product Development: Own the end-to-end development of new features and maintain existing products, including designing, coding, testing, debugging, and deploying updates.
Bug Fixing & System Maintenance: Proactively identify and resolve issues across the stack to keep the platform stable and performant.
API & Payment Integrations: Integrate and manage third-party APIs (e.g., Square, Stripe) to power core business functionality such as payments, scheduling, and authentication.
Legacy Code & Refactoring: Work confidently with legacy Python code and refactor existing codebases to improve structure, maintainability, and performance.
DevOps & Deployment: Manage the full DevOps cycle — version control, code reviews, merging PRs, and production releases — ensuring smooth and safe deployments.
Code Quality & Testing: Uphold high standards for code quality through automated/manual testing, thorough documentation, and adherence to best practices.
What We're Looking For
Strong expertise in: Python, Django, ReactJS, Typescript, NextJS, AWS, Ruby.
Proven experience refactoring code and working with legacy Python projects.
Hands-on experience implementing Stripe or Square integrations.
Solid grasp of OOP, design patterns, data structures, and algorithms.
Comfort with Linux and command-line tools.
Proven experience in a similar role, ideally at a U.S. startup (Seed or Series A).
Track record of designing and building products from the ground up.
Excellent problem-solving skills and a strong sense of ownership.
Proficiency in spoken Portuguese is required.
Ability to quickly learn and adapt to new technologies.
Availability for team syncs via meetings/video calls when required.
Time Commitment
Approx. 4 hours per week