bluesBrackets - LLM Product Development Agency

Build Smarter

Software

IoT experts
Embedded AI

Power Your Growth With Custom LLM & IoT-Driven Software

Every ambitious business needs effective software that gives it an edge—via LLM product development, precise LLM finetuning, or launching connected products with embedded Bluetooth. bluesBrackets delivers trustworthy React Native, Spring Boot, NRF/STM32, and enterprise-grade UX/UI for startups and CTOs.

Core Technologies For Modern Custom Software

React Native
Spring Boot
STM32

Partner With A Polish LLM Agency Built For Business Outcomes

Choosing bluesBrackets means blending emerging AI/LLM agency skills with robust, business-ready mobile and embedded development. We deliver LLM finetuning, rigorous UX audits, and IoT-enabled solutions for measurable ROI and compliance peace of mind.

Truly appreciated

I'm overly excited about our project and the nice progress we're making. With this progess I feel quite convinced we'll complete the products in time. Thanks for your hard work and dedication. Truly appreciated 👍Egil B.A. - Hearing aid company

Reliable Partner

Based on our experience so far, we can assure that this is a reliable partner, making informed and appropriate decisions, and operating in accordance with the latest standards.Agnieszka K.Alloweat - a dietary startup

We Value Professional Relationships

We are happy to recommend working with Blues Brackets because we highly value their professional relationships and their ability to act responsibly, systematically, quickly, and accurately.Tomek R.NAOKKO - a furniture industry startup

Attention to Detail

With this letter, I would like to provide a reference for Blues Brackets for their diligent and committed work on projects that were completed with attention to the smallest details and admirable punctuality.Michał B.Codelab - software house

Future-Proof Digital Investments Across Mobile, AI, and IoT

We deliver measurable ROI, fast project turnarounds, and regulatory clarity. bluesBrackets tailors deep LLM finetuning, enterprise-grade UX/UI, and seamless market fit for high-demand embedded products—ensuring your investment endures real-world challenges.

LLM Product Development & Finetuning

Drive business innovation with custom Large Language Model (LLM) solutions including chatbots, process automation, and predictive analytics. bluesBrackets manages the full cycle—from selecting and finetuning models to seamless deployment, targeting enterprise and startup needs.

Enterprise Mobile & Web Applications

Benefit from scalable React Native and Spring Boot applications delivered with cross-platform efficiency. We support startups and mature businesses, offering fast time-to-market and integrating robust backend APIs for dynamic, high-stakes environments.

Full-Cycle Embedded & Bluetooth Solutions

Transform physical products with embedded firmware, Bluetooth connectivity (NRF, STM32, ESP32), and IoT integration. Our solutions enable new revenue streams through smart device ecosystems designed for compliance and market readiness.

Dedicated UI/UX Design & Advisory

Enhance engagement and retention using enterprise-grade UX/UI practices. Our accessibility-focused, audit-driven designs provide dark mode readiness and conversion optimization across stakeholder interfaces.

Transparent Process & Technical Rigor

Our process minimizes risk—from business outcome alignment and compliance scoping to agile delivery and embedded device testing. Expect ongoing support, rapid prototyping, and real-world device quality assurance.

Proven Trust From Startups To Enterprises

Our Polish team delivers cost-effective LLM agency, embedded, and scalable app development for sectors like healthcare IoT, SaaS, and predictive analytics. We help ensure GDPR compliance, auditability, and supported growth for business-critical software.

End-to-End Expertise For Reliable Digital Projects

Develop LLM-Based Products For Competitive Advantage

bluesBrackets supports development of LLM-driven products such as NLP chatbots and custom analytics through each project stage—model selection, finetuning, integration, and secure deployment to fit business-critical demands.

Accelerate Mobile Delivery With Market-Ready Apps

Leverage cross-platform teams skilled in React Native, Node.js, and scalable backend architectures. Launch mobile solutions aligned with business vision and fast-changing market requirements.

Enhance Physical Products With Embedded & IoT

Integrate robust firmware, Bluetooth, and IoT with STM32, NRF52, and ESP32 for healthcare, logistics, and smart devices. We manage compliance and seamless cloud integration for rapid go-live.

Improve Stakeholder Experience With Expert UI/UX

Our enterprise-focused UI/UX design ensures accessibility, frictionless onboarding, and measurable conversion improvements. Benefit from advisory services and audits tailored to specific domains.

Case Study

We increase efficiency and solve key business problems by creating advanced technological solutions tailored to your needs.

Student listening to a lecture using a device supporting hard of hearing children with BLE Audio

Embedded

BLE Audio for better learning access

We supported Audinor, a company developing innovative hearing aid technologies, in building a BLE Audio device for hard of hearing children. The solution helps improve classroom communication and equal access to education in schools and kindergartens through cutting-edge wireless audio transmission.

Jun 22, 2024 — 7 min read

View of the airport terminal with passenger check-in counters

Automation

App for managing tourist transport

We helped Mr. Shuttle, a professional tour operator, build an application for managing tourist and business transport services. The solution supports airport transfers, intercity routes, and day trips — improving logistics and client experience in the travel industry.

Nov 20, 2023 — 6 min read

Proven Impact: See Real-World bluesBrackets Solutions

See how bluesBrackets delivers ROI: an LLM-powered HR analytics platform cut time-to-hire by 22% for a European staffing leader; GDPR-compliant Bluetooth medical devices combined embedded STM32 firmware and mobile apps for MedTech; and our enterprise mobile logistics platform enabled 5,000+ users with scalable Spring Boot microservices.

What is bluesBrackets’ expertise in LLM product development?
bluesBrackets specializes in LLM agency services, LLM finetuning, and high-impact custom software. The team covers model selection, advanced tuning, deployment, and integration of Large Language Models for business processes, analytics, and chatbot systems.
Which technologies does bluesBrackets use for enterprise app development?
We work with React Native, Node.js, and Spring Boot for scalable mobile and web apps. Our stack ensures cross-platform efficiency, fast launches, and integration with robust APIs and enterprise-grade architectures.
How does bluesBrackets approach embedded IoT product engineering?
Our experts deliver custom firmware and Bluetooth integrations for STM32, NRF52, and ESP32 platforms. From regulatory compliance to device-cloud engineering, we enable product owners to launch connected, secure IoT-enabled solutions.
What sets bluesBrackets apart as a UI/UX design and advisory partner?
We blend enterprise-grade UX/UI, full accessibility, and conversion optimization. bluesBrackets brings audit-driven insights for startups and enterprises, ensuring every digital interface meets real-world, stakeholder-focused demands.
How does bluesBrackets ensure transparency and compliance on projects?
Our process is defined by discovery workshops, robust scoping, agile development, device audits, and full security checks. We help startups and enterprises meet GDPR and other regulatory requirements, providing ongoing support and documented delivery methods.

Build Smarter Software With LLM & Embedded Expertise

Partner with bluesBrackets for LLM product development, expert finetuning, and enterprise-grade mobile, embedded, and UI/UX solutions. Deliver measurable ROI while accelerating innovation with proven technical robustness.

At Blues Brackets we solve real business challenges with the latest and proven technology.

Let's talk

<mail>hello@bluesbrackets.com

<phone>+48 535 462 678

Let's meet

Kraków, PolandWrocław, PolandWarszawa, Poland

Contact

Blues Brackets sp. z o. o.NIP 8842824071REGON 527681035