Senior Java Developer Jobs in Killeen, TX (NOW HIRING)

We're hiring an Android Developer to join a small in-house Android team. The app you'll work on lives in the cab of every bus that uses SMART tagTM — it's what the driver looks at to know their route, track boardings, and confirm safe hand-offs. It's the single most critical piece of software in our product, and we're making a deliberate investment to grow Android development in-house.

You'll work day-to-day alongside a returning team member joining at the end of July, with a senior Android contractor available for technical direction during the first stretch of your tenure. Architectural calls and the map-stack modernization roadmap are set with the CTO and the contractor; your job is to ship strong feature work and modernization tasks against that direction.

What you'll work on

• Day-to-day Android feature development — a Kotlin + Jetpack Compose app deployed to tablets in vehicles every day, plus a small constellation of supporting Android utilities. You'll write code, ship features, and own bugs end-to-end.
• Contributing to our mapping and navigation modernization — we're moving to an open-source map and navigation stack. The architecture is set; you'll contribute to the migration through pilot, rollout, and operation.
• Contributing to fleet rollouts — we use Knox and MDM to control how the app reaches the tablets in vehicles. You'll be part of how releases land in the field; senior team members own the final go/no-go.
• Code quality and testing hygiene — bringing structure, tests, and CI to a codebase that's been built quickly over the years.
• Close collaboration with the broader business — directly with the CTO, the Director of Operations, our backend engineers (.NET), and our customer-facing teams. You'll translate technical trade-offs into business terms when the work calls for it.

What we're looking for

• 4–6 years of Android development, with production experience in Kotlin and Jetpack Compose. Comfortable in legacy Java where it still exists.
• You've shipped a production Android app that real users depend on, ideally one with real-time data, GPS, or background work.
• You've worked in a codebase that was built before you got there. You know how to read other people's code without itching to rewrite it.
• You've shipped to the Play Store. You know signing, release tracks, and the policy minefield around targetSdk, foreground services, and background location.
• You take direction and run with it. You can take a direction from a senior peer and build your own plan of execution without needing in-the-weeds guidance.
• You build for reliability and you remediate under pressure. You think in terms of surfacing issues before customers see them — diagnostics, logging, instrumentation that catches problems early — and when something does break in the field, you can dig in and resolve it even when the situation is stressful. A driver app needs to work.

How we work with AI tools

We use AI coding tools as part of how we ship — Copilot in the IDE, Claude or Cursor for larger refactors and exploration. We expect you to use them well, evaluate their output critically, tell us when they're wrong, and feel responsible for owning the output of these tools.

Nice to have

• Production experience with a vector map SDK — MapLibre, Mapbox, Google Maps SDK, or HERE
• Production experience with turn-by-turn navigation specifics — off-route detection, maneuver-announcement timing, TTS coordination, GPS quality filtering
• Experience with fleet, telematics, rideshare, delivery, or other vehicle-mounted Android applications
• BLE or USB peripheral integration on Android
• Comfort working in a codebase that mixes Kotlin and Java

What you can expect

• Real product impact. A working product that a lot of families depend on. Not a greenfield demo, not a rebuild for its own sake.
• Small team, growing. Decisions get made in a conversation, not in a process.
• On-site in Georgetown, Texas, just north of Austin. You'll work alongside the rest of the team in person.

U.S. Work Authorization: Only U.S. Citizens or Green Card (Permanent Resident) holders will be considered. No visa sponsorship (including STEM OPT, H-1B, or any other work visa) is available or will be provided. W-2 only.