Senior App Developer (iOS + Android + BLE)

Front-end Development for Hardware Products

Kalogon, a smart seating startup based in Melbourne, seeks an App Developer (iOS + Android + BLE) to help us ensure our software applications meet the needs of our customers who use our connected hardware products across all of our product lines. The ideal candidate will have experience implementing beautiful mobile apps for use with hardware products, understanding & contributing to overall software architecture, and be nimble & collaborative across teams.

What You’ll Do

• Contribute to the mobile codebase end-to-end for iOS and Android
  • Maintain and lightly extend our existing React Native (TypeScript)
  • Create modular, cohesive react components to be used in current and future products
  • Work with our team to develop new apps to supersede legacy solutions
• Define long-term architecture
  • Make the structural decisions today that keep the app healthy, performant, and extensible for years
  • Focus on dependency-light, performant, and maintainable designs
• Integrate with hardware over BLE
  • Handle pairing, data transfer, and OTA updates with reliability and clear user feedback
• Design and build great experiences
  • Work closely with Product, Marketing, and Design to ship polished, cohesive UI/UX
• Collaborate
  • Work within a small engineering team, mentor peers, and communicate trade-offs to non-engineers

Must-Have Experience

• 7+ years professional software development, including multi-year stewardship of at least one shipped product, apps listed on an app store preferred.
• React Native & TypeScript (enough to debug, patch, and ship updates).
• Mobile UX / UI : proven track record of designing and delivering polished interfaces on iOS and/or Android.
• Project Architecture : demonstrated ability to make foundational technical choices that scale over multiple releases.
• BLE : practical experience with Bluetooth Low Energy on either platform.
• Cross-team collaboration : turning feedback from marketing, sales, and design into product improvements.

You must share examples of past work (github repos, downloadable apps, etc) to apply, if it’s not your best then feel free to add disclaimers. Please include at least one with source code for us to review. Provide image examples (screens, code, or portfolio) that show your design sensibilities.

Nice-to-Have

• C, C++, Python for misc tooling and project context.
• Native iOS (Swift) or Android (Kotlin/Java) modules and bridging.
• Embedded / microcontroller firmware exposure (OTA workflows, BLE GATT design).
• HIPAA certification or experience with HIPAA compliance

Employment Details

This is a full time, in-office role based in the Kalogon offices in Melbourne, Florida.
Kalogon will consider candidates who can be in office 2 - 3 days a week in lieu of full time in office.

Other benefits include:

• Equity
• 401k with matching
• 20 days off per year
• 5 all-team holidays, 3 floating holidays

Reports To: Engineering Manager

Work with: Research & Development, Production, Marketing & Sales

People with disabilities are encouraged to apply. If you required a disability-related accommodation for your application, please email us at [email protected]

How We Work

• Small, fast-moving team with a future-facing focus.
• Some opportunity to work from home, flexible hours.
• Lightweight processes; we value clear code, thoughtful design, and shipping.

About the company and our products

Kalogon is a venture-backed small business based in Melbourne, Florida, composed of top engineering talent from SpaceX, NASA, and Siemens. Our mission is to eliminate the stresses of sitting and improve health through inventive seating technology.

Kalogon’s flagship medical product is a customized smart cushion, Orbiter Med, that relieves pain and fatigue experienced by individuals who use wheelchairs. We have three other products in the medical space: Bondar (back support), Booster (smart cushion accessory), and our original Orbiter (smart cushion).

Beyond healthcare, we’re expanding into defense and aviation with three U.S. Air Force Direct to Phase II SBIR contracts to design custom seating for B-52 and E-4B aircrew, and a commercial aviation proof of concept.

Our product, development, and production teams leverage lean startup methodology to rapidly improve our technology in close partnership with our customers and partners. At the core of our approach is empathy-driven design, ensuring that we deeply understand the challenges our users face and create solutions that directly address their needs, enhancing both comfort and quality of life.

Learn more at