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JAVA programming services

Reliable Java systems for complex business processes.

Free consultation: align requirements, integrations, and a delivery plan.

  • Spring-based services and APIs
  • Integrations and data processing
  • Testing and long-term maintainability
5.0 / 5 • 17 reviewsReply within 1 business dayNDA available
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We’ll propose a safe delivery plan: milestones, risks, and ownership.

Founder photo

I’m Mantas, founder of Notas IT.

We help organizations replace Excel chaos with structured backend systems.

I work directly with our clients to ensure every solution fits real operational needs — not just technical theory.

Services

Enterprise-ready Java delivery — from architecture to stable production operations.

Discovery & architecture

We clarify requirements, design robust architecture, and plan delivery with clear milestones.

Backend development

Reliable APIs and backend systems built with Spring and proven patterns for long-term maintainability.

Microservices & integrations

Service decomposition, messaging, and integrations with internal and external systems.

Cloud-native delivery

Container-ready services, environments, and deployment patterns that scale with demand.

Modernisation & refactoring

Upgrade legacy code, improve performance, and reduce technical debt safely.

Support & reliability

Monitoring, incident response support, and iterative improvements to keep production stable.

Features

The technical foundations we use to build fast, reliable Java systems.

Spring Boot ecosystem

Clean structure, dependency management, and production-grade patterns.

API-first approach

REST/GraphQL design, documentation, and versioning that supports growth.

Security best practices

AuthN/AuthZ, least privilege, and secure-by-default decisions.

Performance tuning

Profiling, caching, and careful resource usage for stable throughput.

CI/CD & testing

Automated checks, tests, and release pipelines to reduce regression risk.

Observability

Structured logging, metrics, and tracing hooks to make operations easier.

Benefits

Results you can expect when Java development is engineered for production.

Higher reliability

Stable services with fewer regressions thanks to practical quality gates.

Scalability that lasts

Architecture and performance choices that handle growth without rework.

Maintainable systems

Clear code structure and conventions that keep future changes safe.

Stronger security baseline

Security built into design and implementation to reduce risk.

Why us

A pragmatic engineering team that communicates clearly and ships predictably.

Experienced Java engineers

We’ve built production systems and know what “enterprise-ready” means in practice.

Clear ownership & communication

Predictable delivery, honest status, and decisions documented in plain language.

Quality-focused delivery

Reviews, testing, and practical standards to keep releases safe.

Long-term partnership mindset

We help you evolve the system after launch, not just ship a release.

Our Clients

    • State Enterprise Centre of Registers
      State Enterprise Centre of Registers
    • Higiene Institute
      Higiene Institute
    • Government Of The Republic Of Lithuania
      Government Of The Republic Of Lithuania
    • State Digital Solutions Agency
      State Digital Solutions Agency
    • Municipality of Panevėžys
      Municipality of Panevėžys
    • Rada
      Rada
    • History Museum of Trakai Town
      History Museum of Trakai Town
    • Beljana
      Beljana

Reviews

Notas IT
5.0 / 5 • 17 reviews
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Reviews are machine-translated from Lithuanian by DeepL.
Tomas Gelažūnas
Young, energetic, with a wealth of knowledge, a great team, always on time with assigned work, both on and off the clock (when needed). Always advising on the best way to do things. Handles both small and large projects well. Definitely recommend!
Diana Gedminčė
Excellent professionals!
Kamilė Mačiulskienė
Valdas Gedmincius
If you don't know what you want, but you know you need something, these guys will not only suggest a solution, but also alternatives or the best option, so all you have to do is to choose the solution you want and you'll get fast results!

About Us

Nice to meet you!

Notas IT is a programming services company that has been operating since 2019. The company currently employs 7 specialists to develop innovative, growth-generating solutions. We are constantly developing applications and web systems to help our clients not to get lost in the vast amount of data.

We believe that by working together we can become an important part of your business, always helping you to meet the challenges of your programming work and fulfilling your most demanding needs.

We work efficiently using artificial intelligence solutions to help you get the job done faster and save costs for the client.

Programming is our daily activity and passion. We work every day to create the most productive and user-friendly applications possible.

Why is the Java programming language dominant in the Enterprise sector?

The Java programming language is very closely linked to the Oracle Corporation, which is also the owner of the Oracle database, which has a very strong capacity to ensure the integrity of information. As a result, many information systems have been developed and need to be maintained and extended.

Why is Notas IT Java Developer the right choice?

Java programming is one of Notas' strategic IT service areas. All Java programmers have Oracle OCA Java SE 8 certification from Oracle Corporation, confirming their deep knowledge of the Java programming language, making Notas IT Java Programmer the right choice for your business growth.

How is the development and maintenance of Java-based software?

Projects based on the Java programming language are very different. Projects based on older versions of the Java programming language run on older generations of servers (GlassFish, JBoss), while newer ones run on Apache Tomcat or Docker infrastructure. The software development process is strongly influenced by this, with different deployment processes and different locations for the tracking files.

Our Java programming team has experience from Java 7 to Java 24, so we will find a way to develop and maintain your business system with confidence.

Is Java programming relevant for new projects?

We believe that this question can be answered most accurately by knowing the client's business segment and the programming technologies used in the company's other projects. If the other projects are based on Java and the organisation is willing to invest in stability, we would strongly recommend the Java programming language for new projects.

FAQ

Java development — FAQ

Do you build APIs and integrations?

Yes — we design and implement stable APIs and integrate with external systems.

Can you work with existing codebases?

Yes. We can take over, stabilize, and extend existing Java systems.

What stack do you use?

Commonly Spring Boot, SQL databases, message queues, and modern CI/CD.

Do you provide ongoing support?

Yes — monitoring, bug fixes, and planned development.

Contact us

Contact us for a free consultation