DSP Software Engineer Embedded/Telecom/English

1. Voice Digital Signal Processing (DSP): In-depth knowledge of DSP algorithms including Echo
Cancellation, Tone Detection, Voice Activity Detection, Compression/Decompression, and
De-Jitter Buffering, as applied in VoIP systems. Knowledge of VoIP speech codec, such as G.711,
G.729a, G.722, iLBC, iSac, and Opus.
2. Working experience on FAX and Modem: In-depth knowledge of fax protocol T.30 and fax over IP
protocol T.38. Modem data pump protocol such as V.32bis and V.34. knowledge of data link
protocol V.42 and V.14.
3. Telephony Signaling: Knowledge of telephony signaling protocols (FXS/FXO) and a strong grasp
of related electrical characteristics such as impedance, voltage, and current.
4. Embedded Systems & Linux Device Drivers: Hands-on experience in embedded systems
software development and Linux device driver implementation.
5. Programming & Debugging: Proficient in C, Python, and shell scripting. Thorough understanding
of SoC chip architectures, code generation such as GCC, CLANG or any compiler provided by
DSP vendors, and debugging tools such as gdb or any IDE provided by chip vendors. Familiar
audio analyzer such as Audacity and Cool Edit, and network protocol analyzer such as
Wireshark.
6. Hardware Project Development: Demonstrated experience in developing hardware projects from
the ground up.
7. AI for productivity and innovation: Experience using AI to streamline and automate
development/testing workflows, troubleshooting or customer support. Knowledge of AI
frameworks such as LangChain, MCP, LLM integration and prompt engineering for building AI
solutions.
8. Communication & Collaboration: English in communication skills with the ability to coordinate
effectively with cross-functional teams.

- Bachelor's or Master's degree in Computer Science, Computer Engineering, or Electrical Engineering

- At least 5 years of embedded system working experience in Telecom industry. Familiar with AI-powered coding tools (e.g., GitHub Copilot, Claude, ChatGPT) for code generation, testing, and debugging.
- Experience applying AI/ML to enhance voice processing (e.g. speaker recognition, voice quality improvement or voice AI applications) for next-generation VoIP technology.
- Familiarity with automated testing tools (e.g. pyATS), and CI/CD pipeline management using Jenkins.
- Experience in Docker container development.
- Knowledge of basic DSP algorithm, such FFT, FIR, IIR, correlation.
- Knowledge of packet lost concealment algorithm for VOIP.

• Young, dynamic, open, friendly working environments
• Opportunities to work with cutting edge technologies
• Opportunities to work onsite at customer's offices in US, Germany, India, Taiwan ...
• Working time: Monday - Friday

Company's Benefits

• Professional Certificate Sponsorship
• Family funeral Support

Extra Holiday

• Sick leave (full paid): 3 days
• Christmas
• Parental leave (for male staff): 8 days
• Wedding leave: 5 days
• Extra holidays for loyal staff

Financial Supports

• Lunch allowance
• OT meal allowance
• Team building allowance monthly
• SNAP Award quarterly
• Birthday gift
• 13th monhly salary + performance awards + project awards
• Wedding and having babies

Insurance

• Accident Insurance 24/24
• Health Insurance

Events & Activities

• Women's day
• Company quarterly events
• Christmas
• Year End Party
• Company's annual trip
• Team building monthly
• Sport clubs: Football, Badminton, Table Tennis