10/06/2026 updated
100 % available
AI Product Builder | SaaS, Business Applications & Integrations
Kraków, Poland
Only remote
MSc Computer Science, DePaul University (2010); Bachelor Computer Science, WSB-NLU (2008)About me
I turn business needs into working software. Through SoftwareLabs, I build SaaS products, business applications and integrations, from requirements to deployment. I use Claude Code and Codex and take responsibility for the delivered solution.
JavaScriptPHPApplication Programming Interfaces (APIs)Amazon Web ServicesApplication Integration ArchitectureBusiness SoftwareSoftware as a ServicePostgreSQLMySQLNode.jsRabbitMQRedisAngular 2+Next.jsSymfony
I build business applications and SaaS products, from understanding client workflows and defining requirements to architecture, development, deployment and maintenance. I have worked in software since 2007 and run SoftwareLabs, a Polish software business, since 2013.
My background covers PHP and Symfony, Angular, JavaScript and TypeScript, React and Next.js, Node.js, PostgreSQL and MySQL. I work with REST APIs, ERP integrations, data modelling, roles and permissions, AWS, Docker, Redis, RabbitMQ and CI/CD. I also have experience in OWASP-focused application security, code reviews and production releases.
I currently use Claude Code and Codex to develop products, direct coding agents and validate application behaviour. I take responsibility for requirements, technical decisions and the delivered solution. My work also includes LLM API integrations and business process automation.
Selected work:
Tact MES (tactmes.com): a manufacturing execution system for small and medium-sized manufacturers, connecting orders, planning, shop-floor reporting and inventory. I own the product concept, requirements, architecture and development.
Timesy (timesy.pl): a SaaS application for time tracking and project profitability, combining working hours, billing rates and internal costs. I am responsible for the domain model, permissions, reporting and deployment.
Raiseberry: a production management system covering planning, materials, reporting, packing and shipping.
Dolineo: backend and frontend development of an employee training and onboarding SaaS, including integrations, security and production releases.
I work directly with clients on new applications, MVPs, integrations and the continued development of existing systems. Website: softwarelabs.pl.
Experience
Professional experience10+ years
Freelancer since2013
Languages
EnglishGoodPolishNative speaker
Project history
Work directly with clients to analyse business processes, define requirements and scope, and design application architecture. Responsible for development, validation, production deployments and maintenance. Build and develop SaaS products including Tact MES and Timesy. Designed and built a production management system for Raiseberry covering planning, materials, reporting, packing and shipping. Currently use Claude Code and Codex to direct development and validate results.
Developed backend and frontend features for an employee training, onboarding and skills development SaaS. Worked with clients on new modules and handled integrations, application security, OWASP-focused code reviews and production releases. Technologies included PHP, Symfony, Angular, MySQL, Redis, RabbitMQ, REST and SOAP APIs, and AWS. Used Claude Code during the later part of the engagement.
Developed architecture and features for the Matrecis platform, configured applications and servers, and worked on platform security. Collaborated with the development team in English. Technologies: PHP, PostgreSQL, RabbitMQ, AWS, Docker and REST APIs.