20+ years in critical infrastructure
N1Solutions is a team of virtualisation, systems, database and application platform engineers. We design, deploy, migrate and tune production environments - from VMware clusters, through Oracle, SQL Server, Tomcat, JBoss and WebLogic, to Kubernetes with a full CI/CD pipeline and infrastructure described as code.
The technologies we work with every day
Expertise
Virtualisation, clusters, server systems, databases, middleware and container platforms are the foundation a company works on every day. When it stops, the whole organisation stops with it. That is why only engineers with more than 20 years of experience work on it - each a specialist in their own technology.
We take over production environments entirely, or support your administrators wherever deep specialisation is needed.
We design and maintain virtualisation platforms and high availability clusters.
We build and maintain the system layer underneath business-critical applications.
The full database lifecycle: architecture design, deployment, migration across versions and platforms, replication and production maintenance.
The layer your application actually runs on. We deploy, cluster and tune application servers.
We look for the cause, not the symptom. We analyse execution plans, instance configuration, the storage layer and host resources.
We run the whole chain - from building the cluster, through the CI/CD pipeline, to live production systems with autoscaling and observability.
Configuration written as code instead of living in administrators’ heads: repeatable, versioned and reproducible in minutes.
We design cloud and hybrid environments with a clear cost rationale, and move existing systems into them.
We move production systems across versions, platforms and locations. Every migration has a test plan and a rollback scenario.
Backups that actually restore. We test the restore, not just the backup job.
We know about the problem before your users do. Metrics, logs and alerts joined into one picture of the environment.
Method
Whether we are building a vSphere cluster, migrating an Oracle database, tuning WebLogic or standing up a CI/CD pipeline, we follow the same six-stage cycle: audit and design first, then deployment with testing, and maintenance at the end. Every stage ends with documentation, and every production change has a rollback scenario prepared in advance.
Hosts, storage, network, licensing and inter-system dependencies.
Sizing, failure domains, addressing and the high availability model.
Hosts, cluster, storage, network and system hardening.
Failover, performance and restore from backup.
Migration in a maintenance window with a rollback scenario.
Monitoring, patching and capacity reviews.
Versions, load, execution plans and bottlenecks.
RAC, Data Guard, AlwaysOn or streaming replication.
Engine upgrade or data move without downtime.
Queries, indexes, instance parameters and the I/O layer.
Backup policy and regular restore testing.
Wait statistics, patch sets and performance reports.
JVM requirements, libraries, integrations and dependencies.
Topology, load balancing, session handling and failover.
Data sources, JMS queues, certificates, permissions.
Deploy, rolling restart and artefact versioning.
Heap, garbage collector, thread and connection pools.
Heap and thread dumps, logs and application monitoring.
Application, manifests and infrastructure in one repository.
Compilation, unit tests, image in a private registry.
Integration tests and image vulnerability scanning.
Argo CD or Flux syncs the cluster with the repository.
Ingress, certificates, secrets and autoscaling.
Metrics, logs and alerts from day one in production.
We agree what must be identical across every environment.
Terraform modules and Ansible roles in the repository.
A test environment built from code alone.
Existing systems brought under code, step by step.
Plan and apply in the pipeline, reviews and approvals.
Rehearsed environment rebuilds after an outage.
Typical engagements
A short overview of the work that comes up most often. If any of it sounds familiar, describe your situation in the form - we will come back with specific technical questions.
We move Oracle databases across servers, versions and data centres using Data Guard and logical replication. The cutover itself takes minutes, and the rollback scenario is ready before we start.
An engine upgrade rehearsed beforehand on a copy of the production environment, with execution plans verified and performance compared before and after the change.
We diagnose hanging domains and rising response times: thread and heap dump analysis, garbage collector selection, thread pools and database connection pools.
Cluster inventory, handover of credentials, verification of backups and licensing, documentation gaps filled and monitoring switched on. Usually two to four weeks, with no downtime.
Ongoing care of your instances: replication and high availability, query tuning, backups with restore testing, and monitoring with alerting.
We move systems to AWS, Microsoft Azure, Google Cloud and Oracle Cloud - entirely or in a hybrid model. Target costs are calculated before the decision, not after it.
Containerising existing applications and running them on OpenShift or another Kubernetes distribution, together with networking, storage and the deployment pipeline.
Building the cluster with networking, storage, ingress and security policies, plus a pipeline that ships the application to production with a single merge.
Why N1Solutions
We work in stable teams - your environment is handled by the people who designed it, or who took it over and documented it from scratch. Every change is documented, every recommendation is backed by numbers, and every production deployment has a rollback plan prepared beforehand.
Response and resolution times written into the contract, with engineering on-call outside business hours.
From hypervisor, through operating system and middleware, to database and CI/CD pipeline. We never send you to another vendor.
Configuration in Ansible and Terraform instead of tribal knowledge. You can rebuild the environment without us.
Before and after: response times, load, backup windows. We show the improvement on a chart, not in prose.
How we work together
A transparent start with no surprises. The first technical call is free and non-binding.
We inventory hosts, clusters, database instances and dependencies. You receive a report of risks, bottlenecks and priorities.
We propose the target architecture, migration plan, maintenance windows and rollback scenario. Pricing is transparent.
We work within agreed windows, test failover and restore, and measure performance before and after the change.
Ongoing administration, monitoring, regular architecture reviews and a modernisation roadmap for coming quarters.
Support models
Every model is priced individually - based on the number of nodes, database instances and the availability window you need.
A one-off deployment, migration or performance audit.
project-based pricing
Ongoing administration during business hours.
from PLN 4,000 / month, net
For production environments with no downtime window.
individual pricing
A database slowing down, an unstable cluster, a WebLogic that keeps hanging, a migration that stalled - describe the situation and we will propose concrete next steps.
FAQ
No. We work on the server layer: virtualisation, operating systems, databases, middleware and container platforms. If you need end-user support, we are happy to recommend a trusted partner.
Yes, that is our most common model. We step in where deep specialisation is needed, or provide on-call cover and holiday relief for in-house administrators.
In most scenarios, no. We use replication, Data Guard, AlwaysOn and vMotion so that the cutover takes minutes. Every migration plan includes a rollback scenario and is tested outside production.
Response times are written into the SLA: within one hour under the Maintenance model and within 30 minutes for critical incidents under Mission Critical 24/7. Tickets blocking production jump the queue.
Inventory, handover of access credentials, verification of backups and licensing, filling documentation gaps, and finally switching on monitoring. It usually takes two to four weeks and requires no downtime.
Everything remains the property of your company. We keep it in an encrypted password manager and hand it over on request - including when our cooperation ends.
Contact
We reply within one business day. Briefly describe your environment and the problem - we will come back with specific technical questions.
+48 728 923 302
Mon-Fri 8:00-18:00
ul. Adama Branickiego 11/107
02-972 Warsaw, Poland
we work across Poland - remotely and on site
N1Solutions
VAT ID PL 526-276-78-40