Voice Software Engineer

🎯 Join Us as a Voice Software Engineer

Help us build next-generation voice systems used by millions of households across the globe. We're on the lookout for experienced Voice Software Engineers to join our Voice Team working on carrier-grade VoIP solutions for Residential Gateways. If you're passionate about embedded development, Asterisk, and real-time voice performance — we want to hear from you. This is your chance to work on real products shipped worldwide, and have a direct impact on their voice quality, reliability, and feature set.

🛠️ What you’ll do:

• Design and develop advanced voice features on top of an embedded Asterisk platform.;
• Integration and optimization of FXS and DECT voice interfaces;
• Low-level development interfacing with SoC DSPs and DSPG chipsets;
• Tweak and tune performance: echo cancellation, jitter, QoS, media streams;
• Debugging and optimizing SIP signaling, media handling, and call processing;
• Collaborate cross-functionally with platform, QA, and product teams to deliver top-tier voice experiences;
• Contribute to the design, validation, and support of voice features in the field.

💪 By joining us, you gain the following: 

• Opportunity to work on exciting, international projects in cutting-edge industries like Automotive, Biotech, IoT; 
• Possibility to develop in cloud technologies;
• Becoming part of a team that believes that the next step to a promising future is to put your heart into it and make it happen; 
• Respect for your private life so you don't have to work overtime or on weekends; 
• Team Events budget to socialize outside of work; 
• Company Events to celebrate smaller and bigger successes (Summer Party, Programmer's Day, and trips abroad – so far we've been in Cape Town, Are, and Barcelona). 

🌟 Perks and benefits: 

• Fully remote work or in our office in Wrocław; 
• Free benefits such as Luxmed, Multisport, and life insurance in Nationale Nederlanden; 
• Attractive referral system (9,5k for senior, 6k for mid, 2,5k for junior); 
• Personal Training Budget with additional paid hours; 
• Passion Day - an extra day off for your hobby to spend as you please; 
• Flexible working hours with no micro-management approach. Our core hours are 9-15, the rest of the working time is up to you; 
• We provide high-quality work equipment + 2 additional monitors and accessories. 

👤 You might be a great fit if you have:

• 5+ years of experience in voice software or telecom systems:
• Proficiency in C programming for embedded environments;
• Strong hands-on experience with Asterisk and OpenWRT;
• Knowledge of FXS, DECT, and VoIP protocols (SIP, RTP, SRTP);
• Experience with embedded Linux voice stacks;
• Exposure to DSP-based architectures and low-level hardware interfacing;
• Solid understanding of voice quality optimization and telephony standards;
• Good troubleshooting skills for multi-threaded, real-time systems;
• You're based in Poland and speak English at a working level. 

⭐ Bonus points for:

• Experience with DSPG voice processors and tuning tools;
• Familiarity with SRTP, TLS, and other voice security protocols;
• Knowledge of voice codecs (G.711, G.722, Opus, etc.);
• Exposure to carrier certification and voice QA processes.