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Telecommunications Companies Using C#

478 companies in Telecommunications are hiring C# talent, with 3,458 open roles.

478
Companies
3,458
Open Roles

C# is Microsoft's primary language for building enterprise applications, APIs, and backend systems — and when telecom companies hire for it, they're signaling active investment in modernizing billing platforms, network management tools, or customer-facing portals. With 478 telecom companies currently hiring C# talent across 3,458 open roles, this is one of the clearest indicators of mid-to-large infrastructure builds in the sector. Companies in this hiring mode are prime targets for cloud migration services, API management platforms, and enterprise middleware vendors.

Buying Signal

A telecom company posting C# roles is almost always building or upgrading a core system — think OSS/BSS platforms, provisioning engines, or internal tooling that touches millions of customer records. Sales reps at DevOps tooling, cloud infrastructure, and testing automation vendors should be treating these job postings as a trigger event, not background noise. If the hiring includes senior engineers or architects, the build cycle is likely 12-24 months — meaning the budget conversation is happening now.

Top Companies50 shown

CompanyIndustryHQ LocationSizeJobsLast SeenLinks
V
Virgin Media O2
 Telecommunications City of Westminster, United Kingdom 10,001+ 473 5w ago
Viasat
viasat.com
 Telecommunications Carlsbad, United States 5,001+ 104 6w ago
Ciena
ciena.com
 Telecommunications United States 5,001+ 47 6w ago
VodafoneZiggo
vodafoneziggo.nl
 Telecommunications Utrecht, Netherlands 5,001+ 17 6w ago
Tata Communications
tatacommunications.com
 Telecommunications Mumbai, India 5,001+ 10 7w ago
Colt Technology Services
colt.net
 Telecommunications Greater London, United Kingdom 5,001+ 9 6w ago
Syntronic - A Global Design House
syntronic.com
 Telecommunications Gothenburg, Sweden 1,001–5,000 125 6w ago
Quectel
quectel.com
 Telecommunications Minhang District, China 1,001–5,000 42 6w ago
IDT Corporation
idt.net
 Telecommunications Newark, United States 1,001–5,000 39 6w ago
VIAVI Solutions
viavisolutions.com
 Telecommunications Chandler, United States 1,001–5,000 20 7w ago
Crown Castle
crowncastle.com
 Telecommunications Houston, United States 1,001–5,000 16 7w ago
Adtran
adtran.com
 Telecommunications Huntsville, United States 1,001–5,000 14 6w ago
Teltonika
teltonika-iot-group.com
 Telecommunications Vilnius, Lithuania 1,001–5,000 13 6w ago
Mitel
mitel.com
 Telecommunications Ottawa, Canada 1,001–5,000 12 6w ago
SES Satellites
ses.com
 Telecommunications Luxembourg 1,001–5,000 11 6w ago
Chaozhou Three-circle Group Co., Ltd.
cctc.cc
 Telecommunications Chaozhou, China 1,001–5,000 10 12mo ago
Brightspeed
brightspeed.com
 Telecommunications Charlotte, United States 1,001–5,000 9 6w ago
Ceragon Networks
ceragon.com
 Telecommunications Richardson, United States 1,001–5,000 9 7w ago
Harmonic
harmonicinc.com
 Telecommunications San Jose, United States 1,001–5,000 8 6w ago
Hyperoptic
hyperoptic.com
 Telecommunications Greater London, United Kingdom 1,001–5,000 8 6w ago
Parallel Wireless
parallelwireless.com
 Telecommunications Nashua, United States 501–1,000 16 6w ago
Telesat
telesat.com
 Telecommunications Ottawa, Canada 501–1,000 10 6w ago
E-Space
e-space.com
 Telecommunications Arlington, United States 201–500 27 6w ago
SCHILLING GROUP
schillinggroup.de
 Telecommunications Neunkirchen-Seelscheid, Germany 201–500 23 6w ago
Silvus Technologies
silvustechnologies.com
 Telecommunications Los Angeles, United States 201–500 20 6w ago
KORE
korewireless.com
 Telecommunications Atlanta, United States 201–500 19 6w ago
Fastwyre Broadband
fastwyre.com
 Telecommunications 201–500 14 7w ago
InterDigital, Inc.
interdigital.com
 Telecommunications Wilmington, United States 201–500 12 6w ago
TAWAL
tawal.com.sa
 Telecommunications Riyadh, Saudi Arabia 201–500 9 6w ago
C-2 Utility Contractors, LLC
c-2utility.com
 Telecommunications United States 51–200 10 7w ago
Astrome
astrome.co
 Telecommunications Bengaluru, India 51–200 9 2mo ago
IS-Wireless
is-wireless.com
 Telecommunications Piaseczno, Poland 51–200 9 2mo ago
Logos Space
logosspace.com
 Telecommunications Mountain View, United States 11–50 13 6w ago
Vrieservice
vrieservice.nl
 Telecommunications Drachten, Netherlands 2–10 48 7w ago
Ericsson
ericsson.com
 Telecommunications Stockholm, Sweden 10,001+ 704 6w ago
Motorola Solutions
motorolasolutions.com
 Telecommunications Chicago, United States 10,001+ 124 6w ago
Rohde & Schwarz
rohde-schwarz.com
 Telecommunications Munich, Germany 10,001+ 71 6w ago
Vodafone
vodafone.com
 Telecommunications Greater London, United Kingdom 10,001+ 70 6w ago
T-Mobile
t-mobile.com
 Telecommunications Bellevue, United States 10,001+ 60 6w ago
AT&T
att.com
 Telecommunications Dallas, United States 10,001+ 47 4w ago
Huawei
huawei.com
 Telecommunications Shenzhen, China 10,001+ 45 6w ago
Comcast
comcast.com
 Telecommunications Philadelphia, United States 10,001+ 41 5w ago
Deutsche Telekom
telekom.com
 Telecommunications Bonn, Germany 10,001+ 38 5w ago
Lumentum
lumentum.com
 Telecommunications San Jose, United States 10,001+ 31 6w ago
BT Group
bt.com
 Telecommunications Greater London, United Kingdom 10,001+ 13 6w ago
Rogers Communications
rogers.com
 Telecommunications Toronto, Canada 10,001+ 13 6w ago
Orange
orange.com
 Telecommunications Issy-les-Moulineaux, France 10,001+ 12 6w ago
Singtel
singtel.com
 Telecommunications Singapore 10,001+ 12 6w ago
Vodafone Idea Limited
myvi.in
 Telecommunications Mumbai, India 10,001+ 10 7w ago
TELUS
telus.com
 Telecommunications Vancouver, Canada 10,001+ 10 7w ago

478 companies use C#. Want the full list?

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▲Market Signal

Nearly 3,500 open roles across fewer than 500 companies means an average of 7+ C# positions per employer — this isn't exploratory hiring, it's scaled delivery. Telecom companies are committing engineering headcount at a level that points to multi-year platform programs.

⦿Stack Intelligence

C# hiring paired with .NET, Azure, and SQL Server is a strong signal of a Microsoft-aligned enterprise stack — which narrows the vendor opportunity considerably. These companies are already in the Microsoft ecosystem, making them natural buyers for Azure-native services, Entra ID integrations, and ISVs certified on the Microsoft commercial marketplace.

C# Hiring Landscape

Where and how companies hire C# talent

By Country

United States
138
United Kingdom
51
China
25
Canada
35
Germany
49
India
44
Spain
22
Peru
5

Top Roles

Compliance Officer689Field Sales Representative118Enterprise Account Executive21Embedded Software Engineer19Senior Software Engineer14Embedded Software Engineer - Viasat Government12Major Account Executive, Mid-Market Sales12Client Partner, Enterprise Sales11Account Executive10Software Architect10Software Developer10Physiotherapist9

Related Technologies

.NETMicrosoft AzureSQL Server

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Frequently Asked Questions

What is C#?

C# is the primary language used to build enterprise software on Microsoft's .NET platform — from internal tools to customer-facing applications handling millions of transactions. In telecom, it typically powers billing, provisioning, and network management systems. When a company hires for it, they're building something that will run in production for years.

Why should sales teams track C# hiring?

C# hiring in telecom correlates with active platform builds, not maintenance cycles — making it a reliable trigger for outreach from infrastructure, cloud, and DevOps vendors. A team scaling from 3 to 10 C# engineers is likely evaluating CI/CD pipelines, cloud hosting, and data tooling simultaneously.

Who should be selling to companies that use C#?

Vendors best positioned to sell into C# telecom shops include cloud infrastructure providers (especially Azure partners), DevOps and testing platforms, API management vendors, and Microsoft-aligned SaaS ISVs.