Senior Software Engineer II

The Role:

We are seeking an experienced Senior Software Engineer II to guide a dedicated project team focused on building world-class IoT and connected device solutions. This is a hands-on leadership role for a deep technical expert in Bluetooth/BLE and embedded systems who is passionate about delivering high-quality code and mentoring other engineers.

While you will be the go-to expert for your team's domain, you will also collaborate with other technical leads to contribute to and uphold our shared engineering standards. You will spend ~50% of your time at the keyboard, leading by example to solve the toughest technical challenges alongside your team.

What you'll do:

• Lead the technical execution of a project, guiding your team from architecture through to delivery in close collaboration with Delivery Managers and client Product Owners and Project Managers.
• Architect and build robust, scalable solutions with a focus on mobile (React Native), web (ReactJS), and IoT (Bluetooth/BLE) connectivity.
• Set the technical direction for your team, making key decisions on implementation, testing, and deployment.
• Mentor and grow your teammates, fostering a culture of technical excellence through code reviews, pairing, and knowledge sharing.
• Champion engineering best practices within your team and contribute to our company-wide standards for quality and testing (Appium/Playwright).

Requirements (candidate must have this experience):

• 10+ years of professional experience in software development. This role requires the seasoned judgment that comes from a career spent shipping complex systems and learning from a wide variety of real-world challenges.
• Proven experience in a technical leadership role, with a track record of mentoring engineers and delivering complex projects, including: 1. Planning, scheduling, monitoring and correcting team activities 2. Responsible for performance and quality of work and 3. Continuous improvement.
• Deep, hands-on expertise with Bluetooth/BLE and NFC enabled IoT devices and a strong understanding of communication protocols: 1. Extensive experience with multiple pairing/bonding strategies and complex interactions with devices and 2. Expert understanding of mobile OS requirements and constraints when communicating with Bluetooth and NFC devices.
• Expert-level React Native, ReactJS  and TypeScript development: 1. Mobile specific feature implementation (camera, NFC, GPS, accelerometer, biometrics, background services, push notifications, etc.) and 2. Vite or NextJS for web.
• Experience with Test Driven Development (TDD) - Unit, integration and end-to-end functional testing.
• Experience with Cybersecurity - Zero Trust, Authentication, RBAC/ABAC, app level encryption.
• App Management: ability to publish to the Apple App Store and Google Play Store while maintaining compliance within app store policies.
• Experience working with cloud platforms (AWS/GCP/Azure) and consuming modern APIs (REST, GraphQL) and a strong understanding of cloud architecture patterns.
• Experience with Agile and Scrum methodologies, including working with product owners and stakeholders for scope definition and effort estimation.
• A background demonstrating rigorous, disciplined thinking (e.g., a technical Bachelor's degree or equivalent experience that shows deep problem-solving skills).

Preferences (you’d be a strong fit if…)

• Experience with embedded software development (e.g., Arduino, STM32), even if recreational.
• Experience developing mobile app test automation (bonus for experience with test automation for bluetooth functionality).
• Experience with TypeScript / NodeJS cloud service development (e.g. NestJS / Express).
• Experience developing native mobile apps (Swift/Kotlin) or Flutter cross-platform mobile apps.
• Previous development experience with medical device software under design controls within an ISO 13485 Quality Management System and/or experience with HIPAA.
• Interest in healthcare and delivering quality products that improve patient outcomes
• Familiarity with day-to-day tool/system stack: 1. AI tools to assist development 2. Agile and Scrum methodologies and 3. Jira, Confluence, Slack, GitHub, Lucidchart, Postman.

Who is Orthogonal:

Orthogonal is a software development and consulting firm that creates medical device software, such as smartphone apps that talk to medical device hardware operating directly on the human body. We take on some of the most challenging healthcare problems facing our loved ones, the healthcare system and society today.

Orthogonal develops Software as a Medical Device (SaMD), digital therapeutics (DTx) and other types of connected medical devices. Our industry-leading experience enables the rapid development, launch and continuous improvement of connected and compliant products – and we offer this innovative approach to our clients so that they can build their own SaMD product development workflows.

Over the last decade, Orthogonal has worked with partners – ranging from startups to Fortune 500 firms – to develop software for their connected devices and bring them to market in a highly regulated space. By accelerating the product innovation pipeline at medical device companies, diagnostic firms and pharmaceutical manufacturers, we enable our partners to modernize patient care and gain a competitive advantage.

Our work is full-stack and multi-faceted, often involving:

• Connected Medical Devices: Engineering solutions for hardware like nerve stimulators and implanted sensors.
• Mobile & Web Applications: Creating intuitive apps for patients and data-rich portals for clinicians.
• Cloud Platforms: Building scalable systems for remote patient monitoring and AI-driven insights.

Salary Range and Benefits:

• Location: Remote, United States (must be able to travel as-needed for periodic on-site client support)
• Annual salary range: $120,000-$200,000
• Medical, dental, and vision insurance
• 401k & 401k matching (up to 3%)
• Remote Work
• Company-provided technology
• 32 PTO days per year
• Strong work-life balance
• Flexible work schedule within regular business hours

Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time. We are unable to hire outside of the U.S. for this role.