Node.js is server-side JavaScript we use to build fast backends, APIs, integrations and applications that scale well.
Software development tailored to your business needs
We help you build your custom software solutions to support your business growth. We develop complex digital solutions, such as self-service portals, IT systems, mobile applications, and more. We provide a full-service solution, from analysis and code development to sustainable maintenance.
- 15+years of software development experience
- 25+employees
- 120+completed projects
- ISO 27001certified information security
Preliminary work: we begin with analysis and collecting insights
Before starting the development process, it’s crucial to clearly define the software requirements and objectives. This involves understanding user needs, determining functionalities and features, as well as mapping out system constraints and integration requirements.
If necessary, we conduct detailed technical analysis to assess the capabilities and limitations of existing systems. We familiarise ourselves with the existing infrastructure, systems, and technologies in use. Additionally, we create a project timeline and allocate resources.
Design: we create the UX/UI solution for IT software based on user needs
We design the user interface to align with the software’s purpose and target audience. Our designs prioritise intuitiveness and simplicity. Drawing from our extensive experience, we understand that users of complex software need to quickly find essential functions, and navigation should be clear to them. This entails ensuring that all parts of the software adhere to a consistent design pattern and style.
Before finalising the design, we conduct user testing to validate the solution. This approach allows us to make informed decisions and ensure that the user experience truly aligns with user habits.
Development: we develop sustainable software using suitable technology and high-quality code
Our strength lies in crafting top-quality code for ensuring the longevity of your IT solution. Building on the groundwork laid during the initial phases, we employ technology tailored specifically to your business objectives. Our software development ensures efficiency and scalability. This means we ensure the system’s flexibility and readiness to meet future needs. Drawing on our extensive experience in developing mission-critical digital solutions, we recognize that enduring software demands high-quality code.
To ensure the utmost security, we adhere to OWASP standards. Following the completion of the software, we create documentation that explains the system’s architecture, features, and usage principles. This ensures the sustainability of the solution we create.
Maintenance & support: as a long-term partner we ensure the software’s continuity
Maintenance and support help ensure the long-term functioning and user-friendliness of the developed software. We carry out necessary software updates, manage databases, and provide user training. We are a partner to your company as a long-term software caretaker, ensuring the smooth operation, security, and sustainability of the digital solutions.
Technologies
PHP is a widely used open-source language we use to build dynamic web applications, intranets and Magento online stores.
- Accessibility (WCAG)
- At the client’s request, we bring digital solutions into line with WCAG (Web Content Accessibility Guidelines). This means that the final solution is accessible to users with diverse needs.
- Security (OWASP)
- We adhere to the principles of the OWASP security standards to ensure the security of the software. By following OWASP guidelines, we are always aware of the major security vulnerabilities associated with the use of web applications.
- Web hosting
- We work with both cloud-based (cloud hosting) and dedicated server-based (dedicated hosting) solutions. We can be your partner in providing exactly the web hosting solution that your business requires.
Our most used platforms
MedusaJS is an open-source headless e-commerce platform built on Node.js that can be shaped exactly around your business logic.
Payload is a TypeScript CMS that runs in the same app as Next.js: a convenient admin for editors and full freedom for developers.
Strapi is a popular open-source headless CMS for quickly building content and an API for websites and apps.
Directus puts a ready-to-use admin and API on top of an existing database. It suits data-heavy solutions and internal company tools well.
Amazon Web Services is the cloud platform where we host scalable web solutions: servers, databases and files in one place.
Related services
Business analysis and workflows
Business analysis and workflows: we map processes, requirements and integrations before development. Less risk, a sharper estimate. 15+ years, 120+ projects.
Finance and insurance
Internet banks, self-service portals and insurance systems for banks and insurers in the Baltics. Our clients include LHV Kindlustus, SEB, Swedbank and ERGO.
Accessibility
Accessibility audits and fixes to WCAG 2.1 AA and the European Accessibility Act (EAA), for new and live online stores alike. Ask us for an audit.
Completed projects
We have extensive experience in developing IT software and e-commerce solutions for businesses, spanning from the financial sector to insurance and pharmaceutical industries. We serve as a long-term partner for both large corporations and rapidly growing startups.
Bonnier Rights Finland: a CRM for selling translation rights with every contract and deadline under controlTranslation rights and contract management with expiry automation, an internal tool for agents.Read more
LHVWe had a unique opportunity to build a business-critical application for LHV Kindlustus to help their business grow.Read more
Äripäev: a rebuilt news site and custom CMS that is faster and costs several times less to runThe aripaev.ee frontend rebuilt from scratch, a custom CMS for the newsroom and cloud costs cut several times over.Read more
TD Baltic: a B2B portal for 2,000+ resellers running directly on the ERPA B2B portal for 2,000+ resellers in the three Baltic states, running directly on the ERP, with self-service reservations.Read more
Ahlbäck Agency: a CRM for publishing rights that also powers the public websiteA CRM for books and publishing rights that also feeds the agency’s public website through an API.Read more
Leading Quality AssuranceWe helped move a 20-year-old system to modern technology that needs less maintenance, is more secure and more configurable, and doesn’t require developer involvement for setup.Read more
Coursy: a training platform that knows who needs which courseA training platform that automatically assigns employees to the right courses by role and department.Read more
EstravelWe developed a travel insurance solution integrated with the sales process. We supported and upgraded the travel insurance system.Read more
Frequently asked questions
What kind of custom software does Opus build?
We build large-scale digital solutions such as self-service portals, information systems and mobile apps. The service covers the whole journey, from analysis and coding to maintenance.
How does a project start?
With preliminary work. We map user needs, functionality, system constraints and integrations, and analyse existing systems where needed. By the end, the right technology, the project timeline and the resources needed are clear.
How do you keep the software secure?
We follow the principles of the OWASP security standards, which keep us aware of the main threats to web applications. Opus is ISO 27001 certified.
Will the solution meet accessibility requirements?
Yes, where required. We design and build the solution to WCAG requirements, so people with different needs can use it.
What happens after launch?
We stay on as a long-term partner: updates, database management, user support and training. We can also take care of hosting and monitoring.
Get in touch
We have your back when it comes to web development, giving you the freedom to focus on building and growing your company.

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