Nelcosoft

Nelcosoft is a Polish software development company founded in 2004 with 18+ years of experience building custom web and mobile applications, CRM and ERP systems. The company has delivered 220+ projects to 200+ clients and operates with a focus on clean architecture and SOLID principles. Rather than chasing trends, Nelcosoft emphasizes code readability, reusability, and long-term maintainability—engineering for products that can scale without breaking apart. The team treats itself as a technology partner responsible for the stability and performance of client systems, not just a vendor shipping code.

Services and capabilities

Nelcosoft's service portfolio divides into three main areas: web development, mobile development, and cloud solutions. On the web side, the company builds web applications, custom websites, online stores, e-commerce platforms, internal business systems, and SaaS products. They handle the full stack: design, architecture, development, QA, and infrastructure. Their mobile practice covers native iOS and Android apps plus cross-platform solutions using React Native and Flutter, with explicit expertise in e-commerce, logistics, delivery tracking, and client portals. Cloud services include AWS, Azure, and Google Cloud infrastructure design; CI/CD automation; and migration work.

The technology stack spans Next.js, React, TypeScript, Node.js, and NestJs on the application side, with PostgreSQL for databases, Docker for containerization, and AWS for hosting. They work with REST and GraphQL APIs. On e-commerce specifically, Nelcosoft emphasizes high-performance platforms that handle large catalogs, multi-language and multi-region sales, payment gateway integrations, shipping provider connections, and CRM/ERP system links. They include technical SEO optimization and analytics integration from the start.

The development process follows a defined 11-stage workflow: qualification and business goal analysis; discovery and stakeholder interviews; scope definition and technical specification; estimation and contract negotiation; UX/UI design with user flows and design systems; architecture and CI/CD setup; sprint-based development with code reviews; QA and acceptance testing; production deployment with monitoring; ongoing support and maintenance; and analytics-driven scaling. They offer SLA-based support for projects after launch.

How they work

Nelcosoft engages through fixed-price projects, staff augmentation, and dedicated team models. They conduct detailed qualification and discovery phases before estimation to reduce uncertainty. Projects are delivered using sprint-based development with regular demos and code reviews. The company positions itself as taking responsibility for results: stability, scalability, and long-term value rather than simply completing tasks. Support spans bug fixes, feature additions, infrastructure scaling, and performance optimization post-launch.