In the evolving world of healthcare, robust and secure networks form the foundation of effective and innovative care support for a patient. Today it is a matter of life and death to provide accurate and secure access to critical patient information and a technical necessity..
And as electronic medical records, mobile diagnostics, and telemedicine become increasingly integral to healthcare delivery, robust network infrastructures have become the backbone of operations.
Sunday Oladosu, a distinguished IT professional and network security architect, has emerged as a pivotal figure in this transformation. With nearly two decades of expertise in designing and implementing secure systems, Sunday has contributed significantly to advancing mobile diagnostics and healthcare data security, ensuring that providers can deliver critical services with precision and confidence.
He says: “Healthcare is about two main aspects – dealing with lives and data and each go hand in hand. Every information must be secure and accurate because any error can have serious consequences.”
Growing up in Nigeria, he discovered his interest in technology during an industrial training program, where he first delved into computer networking. This early exposure inspired him to pursue a career in IT, ultimately leading to his attainment of prestigious certifications such as Dual Cisco Certified Internetwork Expert (CCIE) and CISSP.
Sunday’s dedication to learning and determination to create systems that protect and empower has driven his success: “I’ve always been drawn to challenges that make a difference. Building secure, efficient systems technology can make life better for people.”
Revolutionizing Mobile Diagnostics with PET Coach Networks
One of Sunday’s most remarkable achievements is his work with McKesson, a leading healthcare company. With a network that includes US Oncology and over 75 oncology practices across the country, McKesson faced a daunting challenge: finding a way to bring mobile PET (Positron Emission Tomography) scans to remote communities that lacked access to permanent diagnostic facilities.
“Designing the PET coach network was both challenging and rewarding,” Sunday explains.
“We needed to ensure these mobile units could securely connect to local hospital networks and upload diagnostic data in real time. The stakes were incredibly high because any delay or breach in data transfer could directly impact patient outcomes.”
Sunday’s solution equipped each PET coach with routers, firewalls, switches, and wireless access points, enabling secure and seamless integration with hospital networks: “These vehicles essentially became mobile hubs of advanced diagnostic technology,” he says. “By securing the network connections, we ensured patient data was transmitted to centralized data centers without compromise, no matter where the coach operated.”
This innovation extended advanced diagnostic capabilities to underserved communities, making life-saving scans accessible to needy patients. The PET coach initiative is now a model for mobile healthcare solutions, a testament to Sunday’s ingenuity.
Elisha Kadiri, a seasoned Senior Systems Engineer with over 16 years of experience in IT operations, has closely worked with Sunday on various critical projects and saw his specialised ingenuity first-hand on the PET coach initiative.
He says: “His work revolutionized healthcare delivery in underserved communities, ensuring patients in remote areas had access to essential cancer diagnostics. Watching him design secure and innovative network systems was truly inspiring. He has a unique ability to solve problems and change people’s lives in the process.”
Their professional relationship highlights Sunday’s exceptional contributions to healthcare network security and his transformative impact on data infrastructure.
Elisha adds: “His technical expertise and problem-solving abilities are unparalleled.”
Sunday’s ability to tackle complex challenges with innovative solutions has earned him accolades and the trust of leading organizations like McKesson, Infosys, and BHP.
From revolutionizing mobile diagnostics to designing secure, high-performance networks for critical industries, Sunday’s work consistently delivers transformative results. His expertise in deploying cutting-edge technologies and his unwavering commitment to excellence have made him a respected leader in his field.
Ensuring Data Security in Healthcare Networks
Sunday’s focus on security has been transformative in an industry that is a prime target for cyberattacks – he has set a new standard for protecting sensitive data.
in zero-trust architectures, “Zero trust means never assuming that anyone—or any device—should have unrestricted access,” Sunday explains.
“Even with a username and password, you need to prove you are who you say you are. For example, if someone usually logs in from Los Angeles but suddenly accesses the system from New York, we flag that activity and demand further verification.”
Sunday has implemented advanced tools such as multi-factor authentication (MFA) and geo-fencing to monitor user behavior and detect anomalies: “We’ve seen situations where suspicious activity, like logging in during odd hours or from unexpected locations, was flagged early, preventing potential breaches,” he adds.
He also emphasizes the importance of auditing user privileges: “If someone hasn’t used their access for a while, we revoke it,” Sunday says.
“This not only tightens security but also minimizes the risk of insider threats.”
Major Olaniyi S. Ojo, a United States Army officer with over 20 years of distinguished service and expertise in IT and cybersecurity, has known Sunday for over two decades.
Their long-standing relationship and professional interactions have given Major Olaniyi a deep appreciation for Sunday’s exceptional capabilities and transformative work in network security and engineering.
He says: “His dedication to mentoring and fostering talent in the IT field is inspiring. His commitment to developing the next generation of network security professionals ensures that his knowledge and expertise will leave a lasting legacy, strengthening the nation’s technological capabilities for years to come.”
Hybrid Cloud Migration: Securing Data in Motion
Sunday’s work often involves the complex task of migrating healthcare systems to the cloud. One of his standout projects was transitioning McKesson’s infrastructure to a hybrid cloud environment using AWS.
“Hybrid environments are particularly tricky because they require seamless communication between cloud-based applications and on-premise systems,” he notes.
“For example, you might have an application server in the cloud that needs to communicate with a database stored on-premise. Securing that data in motion is critical.”
Sunday designed an architecture with advanced encryption protocols and secure VPN tunnels to address this: “Data security isn’t just about protecting information at rest; it’s about ensuring that every bit of data in transit is equally secure,” he says.
His efforts safeguarded patient data and optimized operational efficiency for McKesson, enabling them to scale their services effectively.
With over two decades of expertise in IT and a proven track record in digital transformation and strategic planning, Mahhendher Devadass has had the honor of collaborating with Sunday on pivotal network and data infrastructure initiatives.
Mahhendher has observed firsthand Sunday’s extraordinary ability to deliver secure, innovative, and highly efficient IT solutions through their work together.
“What makes Sunday exceptional is his ability to integrate cutting-edge technology into real-world solutions seamlessly,” Mahhendher says.
“From expanding healthcare access with McKesson’s mobile PET coaches to enhancing data centers for Agropur, his work consistently demonstrates both innovation and impact.”
Improving Telehealth and Wi-Fi Networks
Sunday’s contributions extend beyond large-scale projects to everyday operational improvements. He has designed secure systems to support telemedicine, ensuring that virtual consultations are effective and safe.
“With telemedicine becoming more prevalent, healthcare providers need networks that can handle video consultations without compromising patient confidentiality,” Sunday explains. “End-to-end encryption is non-negotiable in these scenarios.”
Additionally, Sunday has optimized hospital Wi-Fi networks to support critical applications, including electronic medical records (EMRs) and diagnostic equipment.
“Healthcare professionals rely on uninterrupted connectivity to do their jobs,” he says. “My goal is to ensure that the network is never a barrier to delivering quality care.”
Omeiza Avazi, an Associate Professor at the University of Ilorin, Nigeria, has closely followed Sunday Oladosu’s career and achievements.
With over two decades of academic and research experience, Dr. Avazi has seen firsthand the remarkable expertise and innovative solutions Sunday brings to network security and IT infrastructure.
“Sunday’s innovative approach to network modernization is extraordinary,” Avazi says, “His upgrades to wide area networks, replacing outdated infrastructure with advanced Ethernet technology and secure 5G solutions, have not only improved efficiency but have also set new standards for reliability and security in the industry.”
Innovation Through Automation
A significant part of Sunday’s expertise lies in his ability to streamline processes through automation. “Manual configurations are time-consuming and prone to errors,” he says.
“I’ve introduced automation tools like Ansible and Python to simultaneously deploy configurations across thousands of devices. This not only saves time but also enhances accuracy and consistency.”
Sunday recalls a specific instance where automation made a massive difference: “We were tasked with updating the configurations for thousands of devices across multiple locations. Doing this manually would have taken weeks, but with automation, we completed it in hours.”
Shaping Tomorrow’s Healthcare
Sunday is committed to further advancing healthcare IT through innovation and education. “I believe in sharing knowledge,” he says.
“I mentor junior engineers and conduct training sessions to ensure the next generation is equipped to handle the evolving challenges of IT and network security.”
Sunday is straightforward when asked what drives him: “I wake up every day excited about the challenges ahead. Whether it’s troubleshooting a complex issue, designing a new network, or mentoring a colleague, I’m passionate about making a difference.”
Undoubtedly, Sunday is a visionary whose work has revolutionized healthcare networks. From designing secure mobile PET coach systems to implementing cutting-edge security measures and advancing automation, Sunday’s contributions have profoundly impacted how healthcare providers operate.
“In healthcare, every second counts, and so does every byte of data,” Sunday says. “I take pride in knowing that my work supports these organizations and contributes to better patient outcomes.”
As the healthcare demands for IT continue to grow, experts like Sunday Oladosu will remain essential, ensuring that the industry stays secure, efficient, and innovative.
