Application Development

We offer a wide range of custom software solutions.

Got a project?

Let’s chat!

We build custom software solutions for

Sales & marketing

CRM and lead generation sofware that can aid your teams to streamline your marketing and sales effort.

Online Commerce

Custom eCommerce solutions with advanced catalog, invoicing, payment and other integrated functions.

Human Resources

Work hours, salary and other human resource automation workflows.

Stocks and logistics

Warehouse management, shipment tracking, fleet management and optimization.

Public-facing organizations

Custom software for public-facing organizations like city halls, train stations and other massively accesed systems

Workflow

Our agents can build apps written in

65
Projects Completed
30
Private Clients
5
Government Clients

The timeline for taking an application from concept to production depends heavily on its complexity, scope, and technical requirements. For standard applications, such as MVPs or modular solutions, the process typically takes 60 to 90 days following the final brief approval. This includes development, testing, and initial deployment. However, for more intricate systems like custom CRMs or enterprise-grade software built on Java/Spring or Python/Django, the timeline extends to 4 to 8 months. This accounts for advanced features, third-party integrations, security protocols, and performance optimization.

For mission-critical projects, such as legacy system migrations or distributed architectures, development can take 9 to 12 months. We emphasize a structured yet flexible approach, breaking the project into clear milestones. This ensures transparency and allows us to align with your business goals while maintaining high standards of quality and reliability. Our agile methodology enables us to adapt to evolving requirements without compromising on delivery timelines.

Yes, we can integrate existing software using APIs, microservices, or custom adapters to ensure seamless interoperability. However, our strategic recommendation is often to build a new, state-of-the-art solution tailored to your needs. This approach allows us to leverage modern architectures, such as cloud-native or containerized systems, which improve scalability, security, and long-term maintainability. When integration is necessary, we employ tools like ETL pipelines (Talend, Apache NiFi) or custom scripts in Python/Go to migrate data efficiently and minimize downtime.

Our team evaluates the return on investment (ROI) for integration versus rebuilding. For example, we recently helped a logistics client transition from a monolithic system to a Kubernetes-based Java architecture, reducing operational costs by 30%. Whether integrating legacy systems or developing from scratch, we prioritize solutions that align with your long-term business objectives, ensuring minimal disruption and maximum efficiency.

We primarily use Agile methodologies (Scrum/Kanban) for projects requiring flexibility and iterative progress, such as AI/ML development or startup initiatives. This approach involves 2-4 week sprints, incremental deliveries, and continuous feedback, supported by tools like Jira, Confluence, and GitLab CI/CD. Agile allows us to adapt quickly to changing requirements and deliver value incrementally.

For projects with strict regulatory requirements or fixed budgets, such as fintech or healthcare systems, we adopt a modified Waterfall approach. This ensures rigorous documentation, structured phases (design, development, testing, deployment), and clear validation gates. Additionally, we incorporate DevOps and Site Reliability Engineering (SRE) practices, including CI/CD pipelines and monitoring with Prometheus/Grafana, to maintain operational excellence. Our hybrid approach ensures that we balance speed and stability, tailoring the methodology to your project’s unique demands.

Our work

Case studies

Request a quote

Have questions? Feel free to write us

Contact us, present your problem and let us come up with a solution!

General enquires

info@celso.ch

Techinical & quote enquires

razvan@celso.ch

Let's go!

Ready to work with us?

Submit the form below and we will get in touch in about 24 hours.