We're looking for a Senior Engineering Manager, Voice Interoperability Engineering to build the team that builds and maintains all external connections into our proprietary WebRTC-based Voice platform. This is a crucial role responsible for managing the interfaces that bridge our modern system with legacy external vendors and the public telephone network (SIP/VOIP). You will build a talented team of engineers and have a direct impact on our market reach, scalability, and the reliability of our core Trader Voice application.

Responsibilities

• Build and mentor a team of engineers, fostering a culture of innovation, collaboration, and technical excellence.
• Drive the technical execution of our roadmap for interoperability solutions, specifically focusing on integrations like private wires, dial tone, and intercom over SIP.
• Manage the infrastructure and project delivery for our Session Border Controllers (SBCs), with an eye toward vendor consolidation and optimization.
• Oversee the evaluation of a scalable PBX solution to enhance or replace our existing FusionPBX/Freeswitch system. This could involve building a new solution in-house, sourcing a third‑party product, or solving for scalability bottlenecks in our current setup.
• Work closely with product management, operations, and other engineering managers to ensure seamless integration and deployment of new features.
• Stay up-to-date with the latest technologies and industry trends in VoIP, SIP, and WebRTC.
• Proven experience in an engineering management role, preferably leading teams that work on real‑time communication systems and interoperability solutions.

Qualifications

• Deep expertise in SIP protocols.
• Extensive experience with VoIP infrastructure, including Session Border Controllers (SBCs) and PBX systems.
• Strong understanding of network architecture and real‑time media transport.
• Experience with Freeswitch or FusionPBX is a plus.
• A strategic mindset with the ability to translate technical roadmaps into actionable project plans.
• Experience in WebRTC protocols and transport.
• Excellent communication skills with the ability to articulate complex technical concepts to both technical and non‑technical stakeholders.
• Required: Strong foundation in computer networking fundamentals (e.g., TCP/IP, DNS, routing, switching, and network security).
• Desired: Experience with networking on public cloud platforms, particularly AWS (e.g., VPC, Direct Connect, and other cloud networking services).

About Our Company

We've spent the last 10 years building a communication and markets technology company, powered by interconnected platforms: messaging, voice, directory and analytics. Over 1000 institutions use our modular technology built for global finance. Security is in our DNA with uncompromising data protection, end‑to‑end encryption and resilient architecture, all created on a foundation of trust with our customers.

But that was only chapter one. We're now building on our purpose‑built network, expanding AI‑powered, real‑time collaboration, redefining flexibility with fully cloud‑native software with our trader voice product, and rethinking the industry's approach to identity verification, connection and intelligence. The opportunity and our ambition are huge. But we need passionate, dedicated individuals to get there. At Symphony we work hard and fast. Our unique blend of technology and financial services makes it an environment you won't get elsewhere.

Benefits and Perks

• Competitive salary
• Bonus Plan
• Benefits and perks vary based on location.
• Regional specific competitive benefits
• Build your own benefits (BYOB) perk
• Many other fun and exciting benefits and activities!