Principal Software Engineer (React Native)

About the Company:

Stable Kernel is a technology services firm and custom software developer building scalable software solutions for cutting-edge, innovative enterprises to move their business forward. We are headquartered in Atlanta, GA.

We’re a privately held, Great Place to Work Certified Company™ with a multi-award-winning culture and an impressive 10-plus-year trajectory of sustainable growth. At Stable Kernel, we support our employees in ways that help them do some of the best work of their lives.

About the Role:

As a Stable Kernel Principal Software Engineer, you play an essential role in setting our portfolio of world-class clients up for success through the development and delivery of their most innovative, transformational initiatives. You will collaborate daily with other engineers and product team members, make decisions that influence the path of a product roadmap, leverage software development best practices, and become a more well-rounded engineer as you learn new technologies. Your knowledgeable practice, reliability, and consultative nature make you an engineer that stakeholders and teammates trust.

Principal Software Engineers may be classified as individual contributors or people managers with individual contributor responsibilities.

Core Responsibilities Include:

• Technical Impact:
• Designing and implementing scalable, maintainable React Native components and screen flows that serve both iOS and Android from a shared codebase.
• Establishing and evolving the front-end architecture, including state management patterns, navigation structure, and shared component libraries.
• Defining and enforcing code quality standards through pull request reviews, linting rules, and automated checks.
• Building and maintaining integrations with RESTful APIs and backend-for-frontend (BFF) services, including error handling, caching, and offline-resilient patterns.
• Collaborating with design to implement UIs, animations, and interaction patterns that feel native on both platforms.
• Designing test strategies and owning CI/CD pipeline reliability for mobile builds, including unit, integration, and end-to-end testing.
• Identifying and resolving performance bottlenecks, including render optimization, memory management, and startup time improvements.
• Providing expert feedback that improves the overall delivery of work.
• Ensuring a high standard of quality across the project.
• Using AI-assisted development tools such as Claude Code or Cursor to accelerate delivery while maintaining code quality and architectural standards.
• Business Alignment:
• Clarifying strategic outcomes and influencing roadmaps and projects.
• Identifying, suggesting, and driving improvements in your customers' end-to-end experience.
• Aiding in estimating work for new business with more unknowns and coaching others in estimation best practices. 
• Interacting with Others:
• Coordinating across the entire company.
• Influencing the entire organization to make changes to support your work.
• Advising teams across the company.
• Autonomy & Ambiguity:
• Designing a long-term roadmap with no direction. 
• Translating customer and business needs and strategic direction into projects and consistently simplifying high-complexity situations.
• Coaching and mentoring others in tackling ambiguity.
• Problem-Solving:
• Decomposing strategic direction into projects:
•  Planning, communicating, and executing to solve our most challenging problems.
• Ensuring alignment with long-term objectives, fostering a culture of informed decision-making and innovation.
• Anticipating most risks and driving simplification to mitigate risks ahead of time. 
• Escalating issues while solving them in parallel ensuring others are informed.
• Leadership:
• Proposing new organization-level processes to improve key areas such as team throughput, employee happiness, or product engagement.
• Driving best practices across the organization.
• Exhibiting exceptional mentoring abilities and fostering a culture of continuous learning and improvement by
• identifying and nurturing potential in others 
• providing strategic guidance
• helping develop career paths for team members 
• Leading projects.
• Setting the strategic direction for projects or areas of technology, leading multiple project teams, and influencing decision-making at higher organizational levels. 
• Exhibiting strong capabilities in stakeholder management, negotiating, and problem-solving in complex scenarios. 
• Mentoring and developing other leaders within the team, fostering a culture of innovation, and contributing significantly to organizational goals.

Deep Expertise With:

• React Native and the React ecosystem (hooks, context, component lifecycle).
• TypeScript for type-safe front-end development.
• Native mobile development fundamentals on iOS (Swift/Objective-C) and Android (Kotlin/Java), sufficient to debug bridge issues, write native modules, and review platform-specific behavior.
• State management approaches such as Redux, Zustand, or React Context, with an understanding of when each is appropriate.
• Navigation libraries such as React Navigation.
• Mobile CI/CD pipelines, including build signing, device testing, and app distribution (e.g., Fastlane, Bitrise, Jenkins, or similar).
• SCM tools such as Git, including branching strategies suited to mobile release cadences.
• Automated testing frameworks such as Jest, React Native Testing Library, and Detox or Appium for end-to-end tests.
• Experience implementing deep linking and universal links.
• App store submission processes and over-the-air update mechanisms (e.g., CodePush or EAS Updates).
• Accessibility standards for mobile (VoiceOver, TalkBack) and responsive layout patterns.

General Requirements:

• 10+ years of development experience with an emphasis on React Native development. 
• Extensive experience serving as a trusted consultant to stakeholders and cross-functional teams, providing expert guidance on backend service design, delivery, and integration.
• Degree in Computer Science or relevant field or experience. 

Nice to Haves:

• Familiarity with feature flagging and progressive rollout tools such as LaunchDarkly or similar.
• Experience with Expo and EAS tooling for managed React Native builds, updates, and distribution.
• Experience with TanStack Query (React Query) for server-state management, caching, and data synchronization patterns.
• Experience integrating analytics and instrumentation SDKs (e.g., Firebase, Amplitude).
• Exposure to GraphQL or BFF patterns in a mobile context.
• Experience working with design systems or shared component libraries across multiple teams.

A Bit More Info:

Minimum Base Compensation: $170,000

This is a full-time position.

Stable Kernel operates a People Before Place Hybrid model, allowing most employees to choose where they can do their best work most days.

Minimal travel is associated with this role.

Our generous total compensation package includes:

• Company-subsidized health, vision, and dental plan premium options beginning on the first day of employment
• 401k with above-average company matching 
• Fully paid Group Life, Short and Long Term Disability, and AD&D insurance
• Optional Flexible Spending Account and Health Savings Account participation
• Voluntary Life, Critical Illness, and Accident insurance
• EAP and Health Advocacy program available at no cost to employees and their dependents
• $3000+ annual industry educational budget 
• Paid time off and paid holidays 

*Note – We are not sponsoring employment visas at this time. If you are currently in possession of an employment visa, it will need to be effective for at least 3 years from the date of your application for your candidacy for employment to be considered.

Stable Kernel’s culture is inclusive and expansive. We celebrate diversity in its many glorious forms and do not discriminate based on race, religion, color, national origin, gender role orientation, sexual orientation, age, marital status, veteran status, or disability status.

However, we will discriminate against those unwilling to comply with the practice of our company values:

• we work with integrity always
• we respect our work and each other
• we are dedicated to life-long learning and sharing
• we stay hungry for new challenges

If you are like-minded in this regard, we hope you will apply. We look forward to meeting you.