Defense technology providing scalable maritime surveillance network data in real time around the globe.

Mobile Developer – React Native

Frontend EngineerSoftware EngineerFull TimeRemoteTeam 1-10Since 2023H1B No SponsorCompany Site LinkedIn

Location

United States

Posted

142 days ago

Salary

Not specified

Bachelor Degree3 yrs expEnglishAndroidFfmpegFirewallsJestKotlinReactReact NativeSqlite

Job Description

• Create beautiful, easy-to-use, atomic components. Make them adaptable for internationalization to allow the app to scale as the number of features and languages the app supports grows. • End-to-end ownership: feature delivery, performance, reliability, and release operations for both apps. • Offline-first architecture: model data for local-first UX (SQLite/Room or similar), implement sync, conflict resolution, and schema migrations. • Streaming & media: implement and optimize live video ingest/playback, jitter buffers, reconnection, Adaptive Bitrate Streaming (ABR), and Quality of Service (QoS) telemetry. • Kotlin native modules: design and maintain native modules with Kotlin when necessary. • Harsh-network engineering: handle satellite/maritime and field conditions such as high latency, packet loss, power/thermal constraints, and others. • Security by design: SRTP key management, TLS/DTLS, cert pinning, Android Keystore, and privacy-preserving telemetry. • Tooling & quality: tests (unit/integration), CI/CD, profiling, etc.

Job Requirements

Bachelor’s degree in Computer Science, Electrical Engineering, or related field.
Proven experience in hardware and software engineering, with a strong understanding of product lifecycle management.
Familiarity with smart technologies and solutions, particularly in analyzing and supporting deployed systems.
Excellent problem-solving skills and the ability to work collaboratively in a fast-paced environment with people across the globe in various time zones.
Strong communication skills, both written and verbal, to effectively interact with contractors and stakeholders.
3+ years building mobile apps, 2+ years focused on React Native at scale (navigation, animations, perfect memory/threading management).
Strong Android/Kotlin skills with production RN or fully native apps deployed to the Google Play Store.
Hands-on with offline-first architectures and local databases (SQLite + ORM/query builders like Kysely, Room, or equivalent).
Real-time video experience on mobile:
Protocols: RTSP, SRTP; transports: TCP/UDP.
Stacks: ExoPlayer, ffmpeg-kit, etc.
Concepts: RTP timing, packetization, jitter buffering, keyframe cadence, reconnect/backoff, and Adaptive Bitrate Streaming (ABR).
Networking: understanding of sockets, firewalls, mDNS/zeroconf, WebSockets, QoS metrics (latency, jitter, loss, stall rate).
Proven testing practice with Jest.
Comfortable migrating apps from earlier Expo versions to the latest Expo/React Native/Android releases, config plugins, and bare when needed.