About Fusemachines

Founded in 2013, Fusemachines is a global provider of enterprise AI products and services, on a mission to democratize AI. Leveraging proprietary AI Studio and AI Engines, the company helps drive clients’ AI Enterprise Transformation, regardless of where they are in their Digital AI journeys. With offices in North America, Asia, and Latin America, Fusemachines provides a suite of enterprise AI offerings and speciality services that allow organizations of any size to implement and scale AI. Fusemachines serves companies in industries such as retail, manufacturing, and government.

Fusemachines continues to actively pursue the mission of democratizing AI for the masses by providing high-quality AI education in underserved communities and helping organizations achieve their full potential with AI.

Type: Full-Time, Remote (6-month contractual job with possibility of extension)

Required Skills:

Android

Kotlin, coroutines/Flow, up-to-date Android architecture
VpnService: building and managing a VPN tunnel, routing, DNS handling, per-app VPN, always-on VPN behaviour




TUN interface concepts: packet capture/forwarding, MTU, TCP/UDP basics as they apply to tunnelling
Strong networking fundamentals: TCP/UDP, TLS, DNS, HTTP(S), proxies, NAT concepts, latency/packet loss handling
NDK/JNI experience (C/C++) for integrating VPN cores (strongly preferred)
Release hardening: R8/Proguard, crash/ANR monitoring, Play Console workflows
Building and shipping native libraries for multiple ABIs (arm64-v8a, armeabi-v7a)
Experience with Gradle/CMake native builds

Protocols

WireGuard (keypairs, allowed-ips, handshake/keepalive behaviour)
OpenVPN (TLS, config formats, cypher suites, connection stability)
IKEv2/IPsec (EAP/TLS or PSK auth options, MOBIKE, NAT-T), strongSwan
Shadowsocks / custom tunnelling (optional)

Security & privacy

Android Keystore, secure storage, encryption, certificate handling/pinning where appropriate
Threat modelling, least-privilege design, priva

📌 Senior Android Engineer – VPN/Networking (Pune)
🏢 Fusemachines
📍 Pune