Trusted by Europe's leading organizations
DNA Solutions migrates critical Oracle and SAP environments to modern architectures without disrupting ongoing operations. Our engineering teams validate the data row by row and remove technical debt across high-volume transaction pipelines.
Trusted by Europe's leading organizations
High-volume environments cannot absorb the operational risk of a big-bang migration. DNA Solutions runs the legacy and target systems in parallel, synchronizing databases through Change Data Capture, and validates the output row by row before any switchover. Our senior team has 20+ years of engineering experience across Oracle, SAP, and enterprise cloud platforms.
DNA Solutions designs technology that lands on your bottom line. European enterprises trust us with extreme data volumes and critical financial pipelines.
See client resultsDNA Solutions built and maintains a Deloitte-audited billing platform processing €300M in audited transactions every month.
By optimizing software licensing fees for a major European organization, DNA Solutions delivered over €1M in yearly cost savings.
A senior team of engineers and consultants across Europe.
T-Systems, Satellic, European Commission: our longest engagements last because we deliver.
Legacy debt sits at the database and the application level. We work both, with continuity and vendor independence as fixed constraints.
We start by auditing large Oracle estates to map the schema, the dependencies and the workloads that carry the highest licensing cost. We then move those workloads onto PostgreSQL or cloud-managed databases, using Change Data Capture to keep source and target synchronized throughout the transition. The migration stays reversible until you are ready to switch over, so the legacy system remains the source of truth until the new platform has proven itself on your real data.
We run the legacy and target systems concurrently rather than switching over in a single step. Automated scripts compare the outputs of both systems row by row and confirm full reconciliation at every cycle, so any discrepancy surfaces before it reaches production. A client segment is moved permanently to the new architecture only once its results match the legacy output. This keeps transaction-critical operations available throughout the migration and removes the risk of a hard cutover.
We decouple tightly bound monolithic applications into independent services along clear domain boundaries. Each service owns its data and its deployment cycle, so your teams can scale individual components against their real load and ship targeted updates without triggering system-wide regressions. We sequence the decoupling so the application keeps running at every step, extracting one bounded context at a time rather than rewriting the platform in one pass. The result is a system that is easier to operate, test and extend.
Legacy estates often carry proprietary database and middleware licences that no longer match actual usage. The audit quantifies the current licensing footprint and identifies workloads that can move to open-source or cloud-managed databases without functional loss. Where it makes sense, we map those workloads onto PostgreSQL or a managed cloud database to exit licensing costs entirely rather than carrying them into the new platform. Savings depend on the existing footprint, so we size them during the audit phase before committing to a target architecture.
DNA Solutions modernizes critical Oracle and SAP environments for high-volume enterprises. From database migration to application decoupling, we remove technical debt while keeping operations running.
What we buildWe audit large Oracle estates and identify reducible licensing costs. We map these workloads onto PostgreSQL or cloud-managed databases, using Change Data Capture for continuous synchronization throughout the transition.
We run the legacy and target systems concurrently. Automated scripts validate the outputs row by row and confirm full reconciliation before any client segment is permanently moved to the new architecture.
We decouple tightly bound monolithic applications into independent services. This lets enterprises scale individual components and deploy targeted updates without triggering system-wide regressions.
Telecom and tolling run transaction-critical systems that cannot stop. The modernization discipline holds across both; the events and regulations around it do not.
OSS/BSS, billing, and charging systems modernized for European telecom operators, with continuity on critical transaction pipelines.
Migration of toll and road-charging databases to modern architectures, with parallel running to keep collection systems available during switchover.
How we migrate and decouple critical systems for European enterprises without disrupting operations.
A scalable microservices architecture that rates high volumes of GPS events and applies multi-country tax rules to generate unified invoices.
Rating pipeline, multi-country
A single payment gateway unifying transactions across a multi-product platform, with reconciliation built in.
One gateway, every productSenior decision-makers on the infrastructure, tolling and financial platforms DNA Solutions has modernized.
"DNA works with us to deliver digital systems at scale so that we can serve our customers digitally. They are both reactive to requests and proactive with ideas and proposals."
"The quality of the people I worked with and the seriousness of the project management stood out. DNA built a backend and app for a highway toll system, and the human side of the company is truly remarkable."
"I appreciated the collaborative spirit and the effort to deliver a reliable solution within a reasonable budget. The step-by-step approach with a demo before deployment made all the difference."
The questions that matter before touching a transaction-critical system.
DNA Solutions never runs a big-bang cutover. We keep the legacy and target systems running in parallel and use Change Data Capture to keep the two databases synchronized while both stay available to your operations. At every billing or processing cycle, automated scripts compare the outputs of both systems row by row and confirm full reconciliation, so any discrepancy is caught before it can affect production. A client segment is migrated permanently only once the target system matches the legacy output to the cent. Because the legacy system remains the source of truth until that point, the migration stays fully reversible. This is how we keep transaction-critical environments available throughout the transition instead of betting everything on a single switchover window.
DNA Solutions focuses on critical Oracle and SAP environments, including billing, charging, and high-volume data pipelines where downtime is not an option. On the database side, we map Oracle estates onto PostgreSQL or cloud-managed databases and use Change Data Capture for continuous synchronization during the move. On the application side, we decouple monolithic systems into independent services where doing so reduces operational risk and lets your teams deploy components separately. We also modernize the integration layer between these systems and the surrounding ERP and reporting stack. Our senior team brings 20+ years of engineering experience across these platforms, applied on billing, charging and data infrastructure for European operators, so the modernization path we propose is grounded in systems we have run in production.
It often can. In one engagement, DNA Solutions removed over €1M in yearly software licensing fees for a European enterprise client by modernizing legacy infrastructure. The work starts with an audit that maps the existing estate, quantifies the current licensing footprint and flags the workloads that carry the most cost without depending on proprietary features. We then identify which of those workloads can move to open-source or cloud-managed databases, typically PostgreSQL or a managed cloud database, without functional loss. Each candidate is migrated under the same parallel-running and reconciliation discipline we apply everywhere, so cost reduction never comes at the expense of data integrity. Because savings depend entirely on your current footprint, we size them during the audit phase and present them before any commitment, rather than promising a figure up front.
We migrate in stages, by client segment or workload, never in a single big-bang cutover. The sequence is planned during the audit so the lowest-risk workloads move first and the team builds confidence on real data before touching the most critical flows. Each stage is validated and reconciled against the legacy system, output by output, before it is moved permanently. Because the legacy and target systems run in parallel during this window, the impact of any issue is contained to the segment being migrated, and a rollback affects only that segment. For a full enterprise migration from a legacy Oracle or SAP estate, expect the program to span several months of phased moves rather than a single release. This keeps high-volume, transaction-critical environments available throughout the migration cycle.