Open Nexus: Secure Cloud Expansion
Open Nexus is the undisputed leader in the Polish public procurement market, holding a 33.6% share of the entire sector. The scale of the company’s operations is best illustrated by the fact that in 2024, transactions worth 4.5% of Poland’s entire GDP were processed through its flagship service, platformzakupowa.pl. The world of Open Nexus is one of precise procedures, rigorous requirements, and pressure for zero-downtime performance.
Industry: FinTech, Public Procurement
Challenge: Severe business limitations caused by outdated on-premise infrastructure: lack of scalability, growing technical debt, high maintenance costs, and non-compliance with national digital trust standards essential for the public sector.
Solution: Design and implementation of a new architecture on Google Cloud Platform (GCP), assuming full responsibility for the environment under a Managed Services model, and covering the platform with proactive 24/7 monitoring and maintenance.
Key Outcomes:
Achieved full scalability and eliminated technical debt.
Met legal requirements and ensured compliance with key public cloud regulations by utilizing the Google Cloud region in Poland.
Implemented tangible cost optimization mechanisms (including automation).
Guaranteed platform stability and performance under a rigorous SLA.
The Challenge: Building Technological Foundations for New Scale
The dynamic growth of Open Nexus and its expanding client base were evidence of success, but they created a natural need to evolve the existing on-premise infrastructure. It was time for technology to catch up with business ambitions. Together, we identified the key goals of this transformation:
Enabling Unlimited Scaling: The goal was to create an elastic environment where the platform could grow without limits, ensuring every new business success is supported by reliable and efficient technology.
Accelerating Innovation: We wanted to equip the IT team with modern tools and free them from the constraints of the old architecture, allowing them to fully focus on deploying new features and raising security standards.
Meeting Key Market Standards: Adapting to the requirements of the National Cloud Operator (Operator Chmury Krajowej) was a strategic priority, paving the way to strengthen credibility in the public sector and enable further expansion.
Standardization and Optimization of Environments: It was crucial to unify the previously scattered environments (production, development, test) to increase the efficiency and fluidity of deployment processes.
A pivotal moment for technological evolution had arrived. The company decided to transition from a model that had reached its natural limits to a mature and scalable partnership based on market best practices and a solid technological governance framework.
Partnership for Compliance: Choosing a Cloud and Local Market Expert
Open Nexus sought a partner who understood not just cloud technology, but primarily the specifics of the Polish market and its regulatory requirements. Open Nexus chose Tenesys due to our proven track record in complex migrations and expert knowledge of solutions meeting the highest national cloud security standards. This gave Open Nexus the confidence that we understood their unique challenge the need to combine modern technology with rigorous legal and security requirements.
Migration and Maintenance Strategy: Four Steps to a Reliable Cloud
In response to the identified problems, we presented a transparent plan for transformation and assuming responsibility for the environment:
Audit and Strategy: We began with a deep audit of the outdated on-premise infrastructure and an analysis of business needs to design a new, optimal architecture in Google Cloud.
Implementation and Migration: We migrated data and applications to the new GCP environment, utilizing the Google data center in Poland—critical for compliance with critical infrastructure requirements.
Maintenance and 24/7 Monitoring: Immediately post-migration, we covered the entire platform with constant, proactive monitoring, guaranteeing its stability and security from day one.
Taking Full Responsibility (Managed Services): By gradually implementing further improvements, such as automation and cost optimization, we took full, ongoing responsibility for the maintenance, monitoring, and development of the client’s infrastructure under an SLA.
Transformation: Measurable Success and New Quality
The new operational strategy immediately translated into business value. Instead of managing incidents as they occurred, we introduced a culture of prevention based on reliability engineering. Unified environments and intelligent monitoring unleashed the team’s full potential, giving them new confidence in scaling services and full cost transparency.
Technology as a Guarantee of Compliance: The New Reality for Open Nexus
For Open Nexus, technology has ceased to be merely operational support—it has become an active tool for gaining a market advantage. Instead of focusing on maintaining performance, the team can now confidently showcase the capabilities of a system that exceeds the rigorous requirements of the public sector. An elastic and scalable platform, supported by a reliable partnership, allows Open Nexus not only to react to market needs but, above all, to actively shape its future and consolidate its leadership position.
“Cooperation with Tenesys is proof of the highest professionalism. We definitely recommend them as a partner.”
Krzysztof Swarzyński
DevOps Engineer at Open Nexus Sp. z o.o.