As a Senior Software Engineer with a strong focus on web and mobile development (native iOS or Android), you will leverage your experience to design and deliver impactful features, create scalable systems, and ensure our applications are as reliable as the technicians who depend on them. This is your chance to build technology that makes work safer, smarter, and more rewarding and influencing the future of our platform.
Own impactful projects end-to-end: design, develop, and maintain mobile and web applications through to production, ensuring smooth delivery in an Agile/Kanban environment.
Create exceptional user experiences: build responsive, intuitive interfaces for native iOS (Swift) or Android (Kotlin), while contributing to cross-platform efforts in React Native.
Drive cross-team collaboration: work closely with designers, product managers, and backend engineers to translate complex needs into simple, elegant, and scalable solutions.
Shape our system performance: identify bottlenecks, resolve bugs, and implement optimizations to ensure our applications are fast, resilient, and scalable.
Champion engineering excellence: participate in code reviews, promote testing best practices, and contribute to a culture of continuous improvement.
Innovate with data and APIs: integrate RESTful APIs and GraphQL to power intelligent, data-driven user experiences.
Raise the bar for quality: partner with QA on performance, testing strategies, and secure-by-default practices that ensure our apps meet the highest standards.
Mentor and grow others: share knowledge, provide feedback, and help teammates sharpen their skills while learning from yours.
Stay curious and forward-looking: explore emerging technologies in frontend and mobile, and bring thoughtful recommendations to the team that can shape the direction of our platform.
5–8+ years of professional software engineering experience, with strong expertise in frontend and mobile application development.
Bachelor's Degree in Computer Science or related field highly preferred, but not required.
Hands-on experience in native mobile development: Swift (iOS) or Kotlin (Android).
Proven track record of delivering high-quality features and applications into production.
Proficiency in React and React Native, JavaScript/TypeScript, and modern frontend frameworks.
Fullstack experience with backend systems and APIs, including SQL (PostgreSQL) and NoSQL (DynamoDB or similar).
Experience designing and consuming REST APIs and GraphQL services.
Experience thoughtfully applying AI/LLM technologies in the software development toolchain (e.g., code generation, testing, or observability). Implementing production product features a plus (e.g., intelligent assistance, automation, or data insights).
Knowledge of scalable software architecture and modern development patterns.
Strong background in writing unit, integration, and end-to-end tests with tools such as Cypress, Appium, or similar.
Excellent communication skills and proven success working in remote-first environments.
Comfortable taking on diverse engineering challenges—ranging from new feature development to refactoring and modernization.
Bonus: published apps on the App Store or Google Play.
Experience with state management libraries (Redux, MobX, etc) and modern authentication/authorization mechanisms (JWT, OAuth).
Familiarity with unidirectional data flow patterns in frontend architectures.
Exposure to CI/CD pipelines and DevOps practices.
Understanding of observability, monitoring, and performance optimization techniques.
Interest in thoughtfully applying AI-driven tools and automation to improve developer productivity and system quality.
XOi offers a comprehensive benefits package that includes medical, dental, and health, with eligibility the 1st of the next month following your date of hire
XOi offers a 401(k), with eligibility at 90 days
XOi offers Discretionary Time Off
All new employees receive a one time $500 New Hire Stipend to support any updates needed for your home office space
All employees receive a $50/monthly stipend to be used for personal wellness and $50/ monthly stipend towards internet expenses
At XOi, we value individuality and the unique qualities we all bring to an organization. We believe we all bring experiences that have an incredible impact on our product and the experience our customers gain from using our products. We do not discriminate against employees based on race, color, religion, sex, national origin, gender, identity or expression, age, disability, pregnancy (including childbirth or other related medical condition), genetic information, protected military or veteran status, sexual orientation, or any other characteristic protected by applicable federal, state, or local laws.
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