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Black NapkinBlack Napkin

Black Napkin

From napkin sketch to production software.

Tailored solutions for banks and large organizations — and for stationery shops, gyms, and growing businesses. Full development cycle, with deep Java backend expertise.

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sketch → ship

Services

From discovery to deploy — the same discipline for complex programs and lean operations.

  • Software development

    Full cycle: analysis, implementation, testing, code review, deployment, and support. Specialized in Java and Spring, with back-end and full-stack delivery.

  • Consulting & technical leadership

    Architecture, standards, mentoring, and continuous quality improvement — supporting technical decisions in corporate environments and smaller businesses.

  • Infrastructure & high availability

    Environments, cloud, observability, and operating practices for stable, secure systems ready to scale.

  • Integrations, APIs & generative AI

    Microservices, RESTful APIs, and system integration. We also apply LLMs and Human-in-the-Loop practices to optimize the SDLC with quality and security.

Software engineer working in a modern workspace

About Black Napkin

Well-drawn ideas become software that works.

Senior Software Development Engineer

We are a software development and IT consulting company. Our name comes from that classic moment: sketching a solution on a napkin — then making it real with solid engineering.

With more than 12 years of experience developing, evolving, and supporting large-scale corporate systems, we work with large, mid-size, and small companies. We specialize in Java and the Spring ecosystem, delivering back-end and full-stack solutions, microservices architecture, RESTful APIs, system integration, databases, and high-availability environments.

Our background includes strong work in financial and corporate sectors, plus international projects. We take part in the full software cycle — from analysis and solution design to implementation, testing, code review, deployment, and support — with experience in technical leadership, standards, mentoring, and continuous quality improvement.

We also apply Generative AI to software development: LLMs, prompt and context engineering, and Human-in-the-Loop practices to optimize the SDLC, always focused on quality, security, performance, and maintainability.

Portfolio

Examples of the challenges we solve — from mission-critical to day-to-day operations.

  • Enterprise

    Critical systems & operations

    Internal platforms and high-responsibility workflows, with security, access roles, and dashboards for continuous operations.

  • Architecture

    Modernization & APIs

    Restructuring integrations and backends into more stable, observable, and evolvable services.

  • Local business

    Tailored digital presence

    Portals, sites, and lean systems for small and mid-size companies — focused on clarity, self-service, and practical results.

Contact

Tell us the challenge — from a bank to a local shop. We will help shape the next step.