Languages
| C/C++ | Ruby |
| Java/SE/ME/EE | Perl |
| C# | XML/HTML |
| Objective-C/C++ | SQL |
| Objective-C++ | Assembly |
| JavaScript | VHDL/Verilog HDL |
| Scala | PHP |
| Python |
Frameworks & Libraries
| Django | Node.js |
| .NET | OpenGL |
| EJB | OpenCL |
| Spring | Boost/STL |
| Eclipse | OpenSSL |
| Hadoop | Ajax |
| OSGi | Matlab |
| jQuery |
Platforms
| Linux/embedded Linux | RealTIme OSes (RTOSes) |
| OSX/iOS | QNX |
| BSD | eCos |
| Android | OS20/OS21 |
| Windows/Windows Phone/Windows CE | |
Architectures
| ARM | DSP C5xxx/C6xxx |
| MIPS | AVR/AVR32 |
| Cortex | 8051 |
| x86/AMD64 | CUDA |
| SH-4 | PIC/PIC32 |
| PowerPC | FPGA ( Altera / Xilinx ) |
Databases
| Relational | NoSQL |
| Oracle | Apache Cassandra |
| DB2 | Apache Accumulo |
| SQL Server | Redis |
| SQLite | MongoDB |
| Postgress | TempoDB |
| MySQL | Apache CouchDB |
Mathematical modeling
| Signal processing | Control and fault diagnosis |
| Multivariate statistics | Audio and video processing |
| Optimization | Discrete mathematics |
| Machine learning | Finite element method |
| Numerical methods | |
Networking Protocols
| Wireless software stacks ( WiFI, ZigBee, Z-Wave, Bluetooth) |
| TCP/IP protocols |
| DOCSIS/DSL/GSM protocols |
| HTTP/REST/SOAP/SPDY |
| VoIP / Video / UPnP / DLNA |
| SSL |
| Protocol buffers |
Cloud
| Amazon AWS |
| Microsoft Azure |
| IBM Bluemix |
| Beyond.pl |
| Google Cloud Platform (App Engine, Cloud Datastore, ..) |
| CDN integration (Level3, CloudFront, Akamai, …) |
| Big Data (MapReduce) |
Hardware
| Digital & Analogue system design |
| Chip design |
| RF Hardware design (h/w – s/w co-design) |
| High-speed digital interfaces: DDR2/3, HDMI, SATA, Gigabit Ethernet, USB2/3 |
| Wireless communication: IR, RF4CE, WiFi, Bluetooth |
| Power supply, interfaces |
| Hardware prototyping |
| PCB layout (2/4/6-layer expertise and experience) |
| Mechanical metal & plastics design |
| Electromagnetic compatibility (EMC) trouble-shooting |
| Electrostatic Discharge (ESD) / Surge protection design |
| ESC & Thermal design |
| Cost optimised electronics design |
| Production ready design |
| Hardware reliability verification |
| Systems, technology & component validation |
| OEM and ODM auditing |
| Low-level Linux / Assemblers / Low-level C programming |
| High speed interface apps (USB, Eth 10/100M/1G, Wi-Fi, HDMI, PCI, SATA) |
Other skills
| Security (CA/DRM, anti-piracy, data encryption, …) |
| A/V decoding & processing (MPEG2, AVC/H.264, MP3, AAC, DTS, AC3, …) |
| Distributed computing |
| Parallel computing |
| Web browser engine development (Gecko, WebKit, Ant) |
| Digital TV (DVB, ATSC, RDK, …) |