Mobile Application Developer

As a Mobile Application Developer (Software Developer) on our Engineering team you will build and evolve the iOS and Android apps that HVAC/R technicians rely on in the field. You will design features that pair phones with our service tools over Bluetooth Low Energy (BLE) and Wi-Fi and NFC capture and visualize live sensor data (pressure temperature refrigerant mass micron levels combustion readings) and embed AI capabilities that turn raw data into clear actionable guidance for the technician.

This role sits at the intersection of mobile engineering embedded device communication and applied AI. You will partner closely with firmware engineers product managers UX designers and most importantly working HVAC/R technicians whose feedback shapes every release.

Unified Experience & Ecosystem Vision:
Centralizing app development under one developer ensures a consistent user experience across all service tools while supporting INFICONs vision of a cohesive branded ecosystem.

Intellectual Property Protection:
A dedicated developer helps safeguard proprietary technologies and app-related assets reducing the risk of IP exposure and ensuring tighter control over sensitive components.

Developer Consolidation & Cost Efficiency:
Currently four separate developers contribute to fragmented efforts and rising costs. Consolidation streamlines development reduces update fees and improves overall cost management.

Internal Capability & Agility:
Limited internal knowledge of app architecture and platforms hinders responsiveness. A centralized approach builds internal expertise enabling faster more flexible updates and better long-term scalability.

Connectivity & Scalability Requirements:
With most INFICON Service Tools products requiring app or OTA connectivity a unified development strategy ensures support for a wide range of toolsfrom full-featured applications to lightweight firmware utilities.

Mobile Application Development

• Design build and maintain features for our iOS (Swift / SwiftUI) and Android (Kotlin / Jetpack Compose) apps with selective use of cross-platform frameworks (React Native or Flutter) where appropriate.

• Build clean intuitive UIs optimized for one-handed use in attics mechanical rooms on rooftops and in gloves not in a quiet office.

• Implement an offline-first architecture so technicians can keep working in basements walk-in coolers and remote sites with no connectivity then sync cleanly when theyre back online.

• Write well-tested maintainable code with strong attention to performance battery life and crash-free sessions on a wide range of devices.

• Make AI-assisted development a core part of how you work. Use AI coding assistants and agentic tools to accelerate everyday development while keeping a high bar for code quality security and maintainability

Phone-to-Tool Communication

• Own and extend the mobile-side stack that pairs and communicates with HVAC/R service instruments over Bluetooth Low Energy (BLE) Wi-Fi Direct and NFC including connection management reconnection logic and firmware-version compatibility.

• Implement reliable streaming and logging of live sensor data system pressures superheat/subcool vacuum levels refrigerant charge temperature differentials combustion readings and leak-rate data.

• Collaborate with firmware engineers on BLE GATT profiles message schemas OTA firmware updates pushed through the app and diagnostic flows for field troubleshooting.

• Integrate with adjacent ecosystems used in the trade: refrigerant tracking and reporting platforms EPA Section 608 compliance workflows dispatch / field service management (FSM) systems and customer-facing report delivery (PDF email e-sign).

• Help evolve our SDK so third-party HVAC/R apps can talk to our tools the same way our first-party app does.

Cross-Functional Collaboration

• Partner with product managers UX designers firmware engineers and cloud/back-end engineers to ship end-to-end features.

• Participate in field visits and ride-alongs with HVAC/R technicians to observe real installs start-ups and service calls and translate what you see into product improvements.

• Contribute to code reviews architecture discussions sprint planning and engineering hiring.

What Youll Love About This Role

• Your code ships to technicians who use it in the field every single day and they will tell you exactly what they think.

• Youll work at the leading edge of AI applied to the skilled trades where small UX wins translate into real time saved on a real job site.

• You get to design across the full stack of a connected product: hardware firmware mobile cloud and AI.

• Modern tooling supportive team and a product roadmap that takes mobile and AI seriously not as side projects.

• Experience with OTA firmware update flows initiated from a mobile app.

• Familiarity with field service management (FSM) integrations ServiceTitan Housecall Pro FieldEdge BuildOps Salesforce Field Service or similar.

• Experience generating PDF service reports e-signatures and customer-facing documentation directly from a mobile app.

• Contributions to open-source mobile BLE or AI tooling.

Qualifications :

Required Qualifications:

• Mobile experience: 3 years of professional mobile development with shipped apps on the App Store and/or Google Play.

• Native or cross-platform proficiency: Strong skills in at least one of: native iOS (Swift / SwiftUI / UIKit) native Android (Kotlin / Jetpack Compose) or a major cross-platform framework (React Native or Flutter). Comfort working across both platforms is a strong plus.

• Hands-on AI integration: Demonstrated experience integrating AI/ML into a real product running on-device models with Core ML TensorFlow Lite or ML Kit.

• BLE / connected-device experience: Production experience integrating mobile apps with Bluetooth Low Energy peripherals or other wireless hardware (smart sensors wearables IoT devices medical devices industrial tools etc.). You understand GATT pairing background modes and the realities of flaky radio environments.

• APIs & data: Solid grasp of REST/JSON authentication (OAuth 2.0 / OIDC) real-time data handling (WebSockets MQTT or similar) and local persistence (SQLite Core Data Room).

• Engineering fundamentals: Strong testing habits (unit UI and device testing) CI/CD for mobile source control with Git and clear written and verbal communication.

• Education: Bachelors degree in Computer Science Software Engineering or equivalent practical experience.

Preferred Qualifications:

• Direct experience building apps for the HVAC/R refrigeration plumbing electrical or broader skilled trades market or for field service technicians in any industry.

• Familiarity with HVAC/R concepts: refrigeration cycles superheat/subcool evacuation and micron readings refrigerant types (A2L and beyond) combustion analysis EPA Section 608 reporting and AHRI/ASHRAE workflows.

• Experience shipping on-device AI features at scale model quantization latency tuning hybrid on-device / cloud inference patterns.

Additional Information :

The expected salary range for this position is between $90000 and $130000 per year. The actual compensation will be determined based on experience location and other factors permitted by addition INFICON employees are eligible for a profit-sharing bonus with a target of 10% as well as 401K match up to 8% (vesting schedule). 

INFICON provides a dynamic work environment that promotes diversity equity and inclusion. Our employees experience ongoing green initiatives flexible work hours and a variety of health and wellness programs.

INFICONs forward-thinking approach offers countless opportunities to design support and manufacture a diverse product portfolio that expands globally. Our Lean and Agile work environment offers competitive compensation relocation assistance a discretionary bonus and generous employee benefits; major medical dental health vision 401K vacation and sick time tuition reimbursement and more!

INFICON is committed to ensuring that our online application process provides an equal opportunity to all job seekers that apply without regard to race religion ethnicity national origin citizenship gender age protected veteran status disability status genetic information sexual orientation or any other protected characteristic. A notice describing Federal equal employment opportunity laws is available here to reaffirm this commitment.   Any contact that would like to request a reasonable accommodation to participate in the application process should contact .

INFICON Inc. strictly complies with all aspects of the Export Administration Regulations (EAR) including those sections dealing with deemed exports to foreign nationals.

Remote Work :

No

Employment Type :

Full-time