Senior Android Engineer

Trax; Kraków; On-site; PLN 167,400 - 279,000; Full time

Benefits offered by this job

Cafeteria package

Home office allowance

Potential for Tech Lead role

Job summary

TraxRetail in Kraków is seeking an experienced Android Engineer to take on a technical leadership role. You will shape the Android mobile engineering team while maintaining hands-on involvement with coding.

Responsibilities include developing core features of the GoSpotCheck app, mentoring other engineers, and collaborating with global teams. The ideal candidate has 5+ years of Android development experience and strong communication skills, with opportunities for advancement.

Qualifications

• 5+ years of professional Android development experience with Kotlin.
• Strong understanding of modern Android architecture patterns.
• Track record of mentoring engineers.

Responsibilities

• Develop core features of the GoSpotCheck Android application.
• Drive architecture decisions and code quality standards.
• Mentor and support fellow engineers.

Skills

Android development with Kotlin

Modern Android architecture patterns (MVVM, Clean Architecture)

Jetpack libraries (Compose, Navigation, Room)

Mentoring other engineers

Excellent communication skills

On-device ML and camera/AR integrations

Tools

CI/CD pipelines (GitHub Actions, Bitrise)

On-device ML frameworks (TensorFlow Lite)

Job description

Whether you’re in sales or engineering, operations, or finance, from Boston to Tokyo, Mexico City to Tel Aviv, we’d love to have you join our team

Join Trax and be part of a team committed to transforming retail on a global scale

We are looking for an experienced Android Engineer ready to step into a technical leadership role — someone who combines deep platform expertise with the communication skills and vision to guide a growing mobile team. This is a role where you will shape how our Android and cross‑platform mobile engineering operates, while staying hands‑on with the code.

About Trax

FORM powers the world’s two billion mobile workers as they change companies and industries for good, with mobile technology that improves execution from the frontline. FORM solutions include the AI‑enabled task management platform GoSpotCheck, Trax’s image recognition technology, and FORM OpX, all of which activate and connect teams in the field – with leaders, missions, and each other – so they can deliver success in the enterprise. With more than 25 years of experience, FORM supports 100,000+ global users from some of the world’s more recognizable global brands in 45 countries.

Requirements

Requirements:

• Developing and maintaining core features of the GoSpotCheck Android application used by retail field teams worldwide
• Acting as the technical counterpart to the Mobile Engineering Manager — driving architecture decisions, code quality standards, and technical direction for the Android team
• Mentoring and supporting fellow engineers through code reviews, pairing sessions, and technical guidance
• Collaborating closely with iOS, QA, backend, and ML/IR teams across the US, Poland, Hungary, and Ukraine
• Contributing to cross‑team technical discussions, sprint planning, and roadmap prioritization
• Identifying and driving improvements in build pipelines, testing strategies, and development workflows
• Experimenting with emerging Android technologies, including Jetpack Compose, on‑device ML, and camera/AR integrations

Who You Are:

• 5+ years of professional Android development experience with Kotlin.
• Strong understanding of modern Android architecture patterns (MVVM, Clean Architecture, multi‑module projects)
• Experience with Jetpack libraries (Compose, Navigation, Room, WorkManager, CameraX)
• Track record of mentoring other engineers or leading technical initiatives.
• Experience working in international, distributed teams
• Excellent communication skills — able to articulate technical trade‑offs to both engineers and non‑technical stakeholders
• Eagerness to take ownership beyond your own code — team processes, architecture decisions, and delivery outcomes
• English language: Advanced level

Nice‑to‑haves:

• Experience with CI/CD pipelines for mobile (GitHub Actions, Bitrise, Fastlane)
• Familiarity with on-device ML frameworks (TensorFlow Lite, MediaPipe).
• Experience with ARCore or camera‑based capture workflows
• Background in retail tech, field service, or enterprise mobile applications.
• Experience profiling and optimizing app performance, battery usage, and network efficiency
• Familiarity with cross‑platform considerations (coordinating with iOS/Swift teams on shared features)

What we offer:

• Working on state‑of‑the‑art technology with an international team
• Wide range of fringe benefits: cafeteria package, home office allowance
• Potential path to a formal Tech Lead role with real influence over team direction
• Working on a mobile app with a large, active user base across global markets
• Collaboration with ML and image recognition teams pushing the boundaries of on‑device AI
• Access to modern tools and technologies of your team’s choice

Exact compensation may vary depending on skills, experience, and location within Poland.