19+
years in software outsourcing
S3Corp. offers comprehensive software development outsourcing services ranging from software development to software verification and maintenance for a wide variety of industries and technologies
Software Development Center
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Empowering global enterprises with scalable network management software, secure hotspot infrastructure, and high-performance backhaul solutions. Partner with a telecom IT outsourcing company in Vietnam.
S3Corp provides telecom software development outsourcing for wire and wireless networking solutions. With 19+ years of experience, engineers in Vietnam build the software behind hotspots, wireless access points, metro networks, 4G/5G backhaul, centralized network management controllers, core and edge network routers, switches, and firewalls.
As a network management software development company, S3Corp combines Application Development, Quality Assurance, and DevOps teams. The company also delivers wireless network software engineering services and IT outsourcing for the telecommunications industry to clients such as Singtel.
Core and Edge Network Router Solutions
Enterprise Network Management and Firewall Systems
High-Density Hotspot Infrastructure Solutions
Multimedia Metro Network Deployment
4G/5G Backhaul Solutions
Broadband Wireless Access Point Solutions
Centralized Network Management Controller
Not sure which offering fits?
Describe your network project to an engineer.
Talk to an EngineerFour challenges slow most network programs: scale, security, latency, and management. Each one has a software answer that S3Corp builds and integrates.
Use high-density hotspot infrastructure solutions that balance load across every access point. S3Corp builds broadband wireless access point solutions and a scalable enterprise wireless network setup for stadiums, malls, and campuses. The team also delivers secure public Wi-Fi hotspot integration and custom hotspot authentication software development.
Deploy a unified threat management firewall implementation at the edge. S3Corp delivers enterprise network management and firewall systems with filtering, intrusion prevention, and encrypted traffic control. Read more on the data security domain page.
Replace legacy links with a low-latency backhaul network for enterprise traffic. S3Corp builds 4G/5G backhaul solutions and supports multimedia metro network deployment for voice, video, and IoT data.
Use a centralized network management controller. A zero-touch provisioning network controller configures new devices remotely, so your teams skip manual site visits.
S3Corp is a telecom IT outsourcing company in Vietnam with 19+ years of experience. Teams deliver offshore software development for wire and wireless projects at international standards, while optimizing cost and performance.
Four strengths define how S3Corp delivers.
Engineers know L2/L3 protocols and build core and edge network router solutions. S3Corp has delivered 400+ projects across 8+ industries since 2007, including telecom work for Singtel.
The offshore model optimizes R&D cost and keeps international standards. Ho Chi Minh City sits one hour behind Singapore, which eases daily overlap. See why outsourcing to Vietnam works.
Outsource network switch application development, driver and low-level development, firmware, and Web or mobile management apps to one team.
Short sprints reduce time-to-market. ISO/IEC 27001:2022 certified processes, audited by DNV, protect your source code.
Check five things: domain proof, protocol depth, security, communication, and delivery process. The table shows what S3Corp offers on each.
| What to check | What S3Corp offers |
|---|---|
| Domain proof | Telecom delivery for Singtel, within 400+ projects across 8+ industries. |
| Protocol depth | Engineers experienced in TCP/IP, SNMP, 802.11, and IPTV. |
| Security | ISO/IEC 27001:2022, audited by DNV. |
| Communication | Delivery from Ho Chi Minh City since 2007, one hour behind Singapore. Explore collaboration models. |
| Delivery process | A written 6-step lifecycle with Agile sprints. |
Want a second opinion on your network architecture?
Get a Free Architecture ReviewS3Corp covers the full delivery cycle, from a new build to keeping an existing system running.
Wire and wireless software runs on standard protocols, systems languages, and cloud platforms. S3Corp picks each layer by job: protocols for device communication, C/C++ and Go for speed, and React for management dashboards.
| Layer | Technologies | Used for |
|---|---|---|
| Protocols & Standards | TCP/IP, RADIUS, 802.11 a/b/g/n/ac/ax (Wi-Fi 6), SNMP, TR-069, SDN/NFV | Device communication, authentication, remote management |
| Languages & Frameworks | C/C++, Python, Java, Go, React/Next.js | Firmware, services, automation, dashboards |
| Infrastructure & Cloud | AWS, Azure, on-premise servers | Host the centralized network management controller |
| Media & Streaming | IPTV, video streaming (Wowza Streaming), QoS | Multimedia metro networks, CCTV streaming |
| Traffic & Security | Load balancing, traffic shaping, firewall and intrusion prevention | Application switches, unified threat management firewalls |
QA and testing validate firmware and controllers on real and simulated devices. DevOps practices automate builds and releases.
Telecom software development outsourcing works best when the model matches your scope. S3Corp offers three models.
Dedicated developers, QA, and BAs work as part of your company. Best for long roadmaps and wireless network software engineering services.
Fixed-scope delivery for clear requirements, such as custom hotspot authentication software development.
Highly specialized engineers join your team fast during release sprints.
Explore all collaboration models offered by S3Corp.
Client: Singtel | Domain: Wire & Wireless | Services: Application Development, DevOps Services
Singtel needed a web and mobile app that shows CCTV camera locations on a map and gives 24x7 live access to video streams, from the office or a phone.
Challenge
Show millions of CCTV records on a map without slowing the system, while adding advanced video features across web and mobile.
What S3Corp built
Engineers split the map into small areas and load only the data in view. Markers group into clusters by zoom level, so the map stays fast.
Result
Most features gained performance and reliability. Development cost and integration cost into the central system went down.
Stack: Google Maps, Leaflet, Cesium 3D, Wowza Streaming, AngularJS, native Android.
Read the full CCTV case study | All case studies
S3Corp renewed its ISO/IEC 27001:2022 certification in October 2025, audited by DNV, an independent certification body. For network software, this matters because your code and test data often describe how your infrastructure works. Read the renewal announcement.
Security practices in every project
Clients include Singtel, Ruckus, Razer, and Absolute. S3Corp serves clients in 25+ countries and does not disclose client information, under defined security policies.
Connect with the engineers at S3 Corporation for a free technical consultation and architecture advice.
Get a Free QuoteS3Corp builds software for hotspot systems, multimedia metro networks, 4G/5G backhaul, broadband wireless access points, centralized management controllers, core and edge routers and switches, and application switches with network management and firewall systems. Engagements range from full development to maintenance.
S3Corp protects data through ISO/IEC 27001:2022 certified processes audited by DNV, least-privilege access, multi-factor authentication on critical systems, and encryption at rest and in transit. Engineers build unified threat management firewall features and end-to-end data encryption into the product.
Yes. S3Corp integrates through APIs, SNMP, and TR-069. Engineers work with equipment from vendors such as Cisco, Juniper, and Ruckus, and build one centralized network management controller for the full system.
Yes. S3Corp optimizes system architecture to handle tens of thousands of simultaneous connections. Typical uses include high-density hotspot infrastructure in stadiums, shopping centers, and large campuses.
Onboarding takes four steps, and each one ends with a clear deliverable:
S3Corp has delivered software from Ho Chi Minh City since 2007. Vietnam balances cost efficiency with engineering quality, and Ho Chi Minh City sits one hour behind Singapore. Engineers communicate well in technical English, and flexible working hours support global collaboration.
Yes. Migration, enhancement, maintenance, and support are core services under DevOps Services. Share your codebase and requirements, and S3Corp proposes how to start.
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Web and mobile app showing geographical locations of CCTV’s with some functions: - 24x7 live access to any CCTV video streams, via the web at the office or via mobile
