Backend System Network Programmer

2 days ago


Singapore LANTONE SYSTEMS PTE. LTD. Full time

We are seeking a highly skilled and experienced backend system/network programmer to work in our core team on FocalScope, an enterprise multichannel workflow engine.

**Key Responsibilities**:

- Develop / enhance backend services running on Windows and Linux
- Maintain / enhance VOIP channels based on RTP, SIP, and WebRTC protocols
- Develop / enhance plugins for Asterisk, IIS and FocalScope itself
- Update FocalScope backend to accommodate changes in protocols, including MS Graph API protocol, GMail API to keep the software up to current
- Develop / maintain integration with GDSes: Amadeus, TravelPort, Sabre, others as needed
- Develop / maintain integration with WhatsApp, Facebook Messenger, Viber
- Design / Develop / Implement AI driven features for FocalScope
- Develop / maintain ASR services for the backend to be consumed by frontend team
- Develop extraction pipeline for bots and intelligent agents based on LLM
- Leverage GPU/HPC hardware in FocalScope backend for AI
- Prepare prototype for a given task at low level and expose it as APIs to be consumed by other front end development teams
- Maintain and enhance FocalScope desktop client
- Diagnose and resolve issues in the backend FocalScope implementation, ensuring optimal performance, reliability and security

**Technical Skills Qualifications**:

- System programming for backend for Windows and Linux OS
- Network programming communication channels such as POP/SMTP/IMAP, 0365, Graph APIs, IM APIs, SIP and WebRTC,
- Programming and integration with Global distribution systems (GDS) such as Amadeus
- Interfacing with AI (ASR, TTS, LLM) via external services and internally via HPC APIs such as CUDA
- 10+ years of experience in cross-platform backend development (Java, JRE, C#,.net, C / C++, WinAPI and Linux POSIX API)
- 5+ years of experience in VOIP technologies (SIP, RTP, WebRTC)
- 3+ years of experience in Electron JS platform
- Good working knowledge of parallel programming techniques like lock-free data structures, actor model, async/await, structured concurrency, SIMD and etc.
- Work experience with Lua language itself and how to embed and extend the language implementation
- Work experience with Asterisk dial plans, queues, AGI protocol
- Experience in implementation of binary modules for Asterisk
- Work experience in consuming MS Graph API and GCP API
- Hands on experience with Python and PyTorch/TensorFlow frameworks for deep learning
- Hands on experience with Nvidia CUDA toolkit. Knowledge of ATI ROCm or Intel oneAPI is an advantage
- Hands on experience with Travelport / Amadeus API
- Experience in optimizing code / debugging when provided with network dumps using tools such wireshark
- Be familiar with TSQL (MS SQL Server dialect) and PSQL (PostgreSQL dialect) and be able to work with database with the ADO, ADO.NET and JDBC
- Be familiar with frontend technologies (Javascript/HTML/CSS) to be able to expose HTTP API for consumption by frontend
- Be familiar with API for WhatsApp, Facebook Messenger
- Work knowledge of version control systems, both Git and Subversion

**Other Qualifications**:

- Bachelor's Degree in Computer Science, or related technical discipline
- 10+ years technical software development experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python or equivalent experience
- 10+ years of experience in network performance analysis and optimization
- Other technical qualifications will be given due consideration as long as they are in-line with the skills required



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