Principal Software Engineer, Full-Stack

Ollie

Principal Software Engineer developing APIs and maintaining technical infrastructure for Ollie's subscription pet food service. Collaborative work in a small team environment with a focus on reliable and performant code.

Posted 7/20/2026full-time🇺🇸 United StatesLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and maintaining APIs and technical infrastructure, with a strong focus on Python frameworks, JavaScript frontend frameworks, and relational databases. Proven ability to collaborate in an agile environment, optimize performance, and enhance customer experience through innovative solutions.

Highest-signal resume keywords

Python Frameworks (Django, Flask)API Development (REST, OAuth2)JavaScript Frontend Frameworks (React, Angular)Relational Databases (PostgreSQL, MySQL)Version Control (Git, SVN)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

API DevelopmentPython ProgrammingJavaScript ProgrammingSQL LanguageUnit TestingPerformance OptimizationAutomationCode ReviewIntegration with 3rd Party ServicesTechnical Documentation

Soft Skills

Communication SkillsCollaboration SkillsSelf-Starter AttitudePositive MindsetTeamwork

Tools & Technologies

DjangoFlaskReactAngularPostgreSQLMySQLGitSVNAI Models and ToolingREST APIs

Industry Keywords

Agile EnvironmentSoftware Development LifecyclePerformance Trade-offsCustomer ExperienceTechnical Infrastructure

Tech Stack

Tools & technologies

AngularDjangoFlaskJavaScriptMySQLPostgresPythonReactSQLSubversion

About the role

Key responsibilities & impact

Design, build, and maintain APIs, interfaces, and technical infrastructure that power Ollie’s subscription platform.
Contribute to all stages of the software development lifecycle- from planning to implementation, deployment, and maintenance.
Collaborate closely with engineers and product managers in an agile environment to deliver high-quality, impactful features.
Develop and integrate 3rd-party services to enhance functionality and improve the customer experience.
Write reliable, performant, and well-tested code that scales with our growing business.
Continuously improve existing systems through refactoring, performance optimization, and automation.
Participate in code reviews, knowledge sharing, and technical discussions to uphold best practices and foster team learning.
Troubleshoot production issues and help maintain a stable and resilient platform.
Stay curious- explore new tools, technologies, and techniques to improve developer experience and product quality.

Requirements

What you’ll need

You have 7+ years of professional experience building applications in a Python framework (Django, Flask, etc.)
You have 10+ years of experience building API systems, including technologies such as REST, OAuth2 and integrations with 3rd party services using REST APIs and JSON
You have an understanding and professional experience working in a Javascript frontend framework (React, Angular, Etc.)
You have an understanding of and professional experience using a relational database (PostgreSQL, MySQL, etc.) including SQL language.
You have strong technical knowledge and deep understanding of time/maintainability/quality trade-offs
You have experience writing unit tests
You have experience with using version control (git, svn, etc.)
You have excellent communication & collaboration skills
You have experience using AI models and tooling (Claude code, Cursor, etc)
You’re a self-starter, positive and excited to work with a small dedicated team
You are passionate about using technology to streamline business processes

Benefits

Comp & perks

Competitive salary
Sponsored 401k program with employer match up to 4%
Comprehensive health coverage including medical, dental and vision
Unlimited vacation policy that you're encouraged to use
Paid parental leave
1-week paw-ternity leave for new dog parents
Free Ollie subscription
Inspiring pack members!