SignalWire

SignalWire offers a Programmable Unified Communications (PUC) platform with powerful APIs for voice, video, messaging, and AI. This platform enables businesses to build and scale next-generation…

www.signalwire.com

SignalWire

SignalWire offers a Programmable Unified Communications (PUC) platform with powerful APIs for voice, video, messaging, and AI. This platform enables businesses to build and scale next-generation…

www.signalwire.com

HQRemote

Team Size81

Open JobsUnknown

Total Funding$42M

Latest Fundraise4 years ago

TL;DR

What they do: Programmable Unified Communications platform (voice, video, messaging, AI) with developer-first APIs and SDKs

Founding: Founded Dec 2017 by the creators of FreeSWITCH

Infrastructure: Operates a fully owned global telecom infrastructure focused on low-latency real-time communications

Funding (total): USD 41,600,000 (multiple rounds through Mar 2022)

Headcount (reported): 81 employees

Company Overview

Problem Domain

Real-time communications and programmable telecom for contact centers and developer-built communications applications

Founded

2017

Industry

Communications / CPaaS

Tech Stack

APIs

SDKs

WebRTC

SIP/PSTN

Proprietary telecom control plane

AI agent integrations

Funding Track Record

Seed- 2019-01

Seed round recorded Jan 2019 (amount not specified in provided evidence)

Series A- 2019-08

11500000.00 USD

Series A amount reported as $11.5M (Aug 2019)

Series B- 2021-06

30000000.00 USD

Dealroom lists a $30.0M entry for Jun 2021; press cites a $30M Series B led by Prosperity7 Ventures

Series B- 2022-03-23

Most recent funding event listed Mar 23, 2022 (some sources list investor participation including T-Mobile Ventures)

Investor Signal

“Participation by investors including Prosperity7 Ventures and T-Mobile Ventures”

Founders

What we do

Join the Team

Software Engineer - WebRTC & VoIP

On-SiteES

On-Site • ES

SignalWire is looking for an European-based WebRTC Software Engineer to help support our European expansion. SignalWire offers engineers the opportunity to build new services and systems critical to the success of a dynamic, fast-growing company-- to push forward the boundaries of communication and grow their career as SignalWire grows.

Please note: This role is only available to candidates who live in Europe and do not require sponsorship. Job Duties:

Add new features to SignalWire’s CXML, RELAY, SWML, and Call Fabric products
Review peers’ designs and pull requests
Provide Tier 3 support for VoIP and WebRTC problems, joining customer calls when needed
Create unit and integration tests for CI/CD
Work with QA to ensure new features are testable

Qualifications:

Must be eligible to work within Europe without sponsorship.
Hands-on experience with C programming language
Experience extending C language VoIP/WebRTC applications like FreeSWITCH, Asterisk, Janus, Kamailio, OpenSIPS, rtpengine, or coturn
Familiarity with Docker and Git
Knowledge of WebRTC, SIP, SDP, RTP, SRTP, DTLS-SRTP, ICE, TURN, STUN, RFC2833/RFC4733, G.711
Hands-on experience with Typescript/JavaScript a bonus
Browser WebRTC API experience a bonus

Startup jobs. A lot of them.

Your next opportunity is in here somewhere. Sign up to explore 70,000+ startups and their open roles. No spam. No gamification. Just jobs.

70,000+

Startups

80,000+

Open Roles

4,600+

New This Week

Mobile Developer

InternshipNew York, US

Internship • New York, US

Technical Writer

InternshipNiš, RS

Internship • Niš, RS

Frontend Developer

InternshipUtrecht, NL

Internship • Utrecht, NL

Technical Writer

Part-timeTel Aviv

Part-time • Tel Aviv

Product Designer

Part-timeAustin, US

Part-time • Austin, US

Machine Learning Engineer

Full-timeAustin, US

Full-time • Austin, US