SaaS on-premise connectivity is the problem every fintech provider eventually hits — and it’s harder than it looks. Your application is cloud-native, scalable, and ready to serve hundreds of financial institutions. But the core banking data those FIs depend on? It’s on-premise, behind a firewall, inside an environment you don’t control.
That gap between your SaaS application and FI core banking data is where fintech deals stall, onboarding drags, and engineering teams get buried in connectivity support. Here’s why it’s hard — and how the fastest-growing fintech providers are solving it.
Why SaaS on-premise connectivity is uniquely hard for fintech
Most SaaS connectivity challenges assume both sides of the connection are managed by the same organization. Fintech-to-FI connectivity is different in every way that matters.
Community banks and credit unions run core banking systems — Jack Henry, Fiserv, FIS — in on-premise data centers they control. They set the firewall rules. They decide when maintenance windows happen. Their IT teams vary from sophisticated to barely there. And they’re not going to change their infrastructure to accommodate your deployment timeline.
That’s why SaaS integration is hard in fintech specifically. It’s not a technology problem — it’s a structural one. Every FI is a different environment, and you have to connect to all of them.
What breaks at scale
One or two FI connections with a VPN-based SaaS connector is manageable. At 50 it starts to hurt. At 200 it’s a full-time job:
- Every new FI requires custom configuration on both sides — no repeatability
- VPN patching must be coordinated individually with each FI’s IT team. CISA consistently flags unpatched VPNs as a top attack vector in financial services
- Overlapping IP subnets cause routing conflicts that take weeks to resolve
- Compliance logging becomes inconsistent across connections, creating FFIEC and PCI-DSS audit gaps
- A single misconfigured firewall at one FI can take down a critical connection
This is why legacy VPN fails as a SaaS on-premise connectivity solution for fintech at scale. It was built for environments one team controls — not for inter-organizational connectivity across hundreds of variable FI environments.
How AI-managed NaaS solves SaaS on-premise connectivity for fintech
Trustgrid is AI-managed Network-as-a-Service built for fintech — the SaaS connectors layer that bridges your cloud-native application to on-premise FI core banking data, without the operational overhead of legacy VPN.
No hardware, no firewall changes at the FI
Trustgrid deploys as a software agent at the FI end, establishing an outbound connection that requires no inbound firewall rules. No hardware to ship. No IT configuration required on the bank’s side. That’s what SaaS on-premise connectivity should look like — invisible to the FI, fully managed by you.
One portal for all FI connections
Every connection is managed, monitored, and supported from a single portal — whether you have 10 FI connections or 500. Security patches push simultaneously across all connections without any coordination with individual FI IT teams. That’s why SaaS integration is hard with VPN and straightforward with Trustgrid.
Built-in compliance across every connection
SOC 2 Type II certified, with centralized audit logging across every FI connection. FFIEC and PCI-DSS compliance is met at the platform level — consistent across every environment, every audit.
Deploy in one day
New FI connections go live in one day without requiring IT expertise at the bank. Core banking as a service connectivity that actually scales — fast onboarding, zero friction, full visibility from day one.
The fintech companies winning on SaaS on-premise connectivity
The fintech providers scaling fastest have removed connectivity as a bottleneck. When a new FI goes live in one day instead of six weeks, your sales cycle shortens, your margins improve, and your engineering team gets back to building product.
Trustgrid is trusted by 2,000+ financial institutions across the US because it was built for exactly this problem.
See how fintech providers connect SaaS applications to on-premise FI data with Trustgrid → for SaaS applications.
Chief Technology Officer
Steven Stites is the CTO and Co-Founder of Trustgrid, where he leads the vision and engineering teams behind the company’s innovative platform for secure networking and edge computing solutions. With over 20 years of expertise in network security, distributed computing, and cloud infrastructure, Steven brings deep industry experience to establishing Trustgrid as a trusted provider for secure, scalable application connectivity across FinTech, HealthTech, SaaS, and enterprise environments.
Leadership at Trustgrid
As CTO and Co-Founder, Steven drives the technical strategy, product development, and architectural direction at Trustgrid. He focuses on creating solutions that bridge modern hybrid ecosystems, empowering SaaS and cloud application providers to connect securely to on-premise resources with maximum reliability and performance. Steven’s guidance is central to Trustgrid’s integration of SD-WAN, Zero Trust Network Access (ZTNA), and edge computing into a unified platform, simplifying deployment, elevating data security, and supporting enterprise-grade operational scale .
Professional background
Before founding Trustgrid in 2017, Steven held senior technical leadership roles at Cisco, where he served as Senior Technical Leader for IoT Cloud and Cloud Web Security. At Cisco, he architected and led customer engagement for major SaaS security products, designing enterprise-scale networking and security solutions and overseeing technical vetting for large-scale technology acquisitions. Earlier in his career, Steven spent over a decade at IBM as a technical lead, driving development for network monitoring and distributed application performance products, and began as a software engineer researching sonar and signal processing at Applied Research Labs. He holds a bachelor’s degree in Electrical and Electronics Engineering from The University of Texas at Austin .
Building the Future of Connectivity
Steven’s vision at Trustgrid centers on advancing secure, cloud-like connectivity across modern digital environments, ensuring frictionless integration between public cloud, data center, and on-premise resources. His background in high-performance network design and distributed security shapes Trustgrid’s commitment to eliminating complexity in deploying, monitoring, and supporting thousands of application connections. He is also an inventor, with patents for secure network technologies and is recognized as a strategic leader with a rare blend of deep technical expertise and business insight .
About Steven Stites
Steven is a passionate technology executive and product architect based in Austin, Texas. His approach emphasizes pragmatic problem-solving, strong team leadership, and client advocacy, helping organizations leverage networking and security innovations to enable secure, scalable applications. He is highly regarded for his ability to clarify complex technical challenges, mentor teams, and deliver solutions that balance technical excellence with cost efficiency. Steven is deeply interested in machine learning, cloud security, and agile product development.
Connect with Steven
https://www.linkedin.com/in/srstites/
Or
Contact him at www.trustgrid.io