# em27code

> Full-service, AI-native software house. We design, build and run web platforms, mobile apps, AI agents, SaaS products, cloud and data systems.

em27code brings strategy, design, engineering and operations together in one company. We work with startups, mid-sized businesses, enterprises and public institutions that need software they can depend on.

We started from a simple observation: AI has changed how software can be made, but not what makes software good. Clear goals, sound architecture, careful testing and honest communication still decide whether a product succeeds.
So we combined the two. Our engineers work with the best agentic tools available, and every line of code is still owned, reviewed and understood by a person. That lets us take on more ambitious work, in more technologies, with fewer handovers.
We are the sister company of EM27studio, a branding studio working since 2017. Together we cover the full journey from brand and product idea to software running in production.

Contact: hello@em27code.com. Languages: English, Polski, Français, Deutsch, Italiano. Based in Poland, working with clients across Europe and worldwide.

## Services

- [Web development](https://em27code.com/services/web-development/): Web applications, platforms and portals that are fast, accessible and easy to grow. Customer and partner portals; Internal tools and admin panels; Marketplaces and booking platforms; Real-time dashboards; High-performance marketing sites; Progressive web apps.
- [Mobile apps](https://em27code.com/services/mobile-apps/): Native and cross-platform apps for iOS and Android, from MVP to app-store scale. Consumer apps with subscriptions; Field-service and logistics apps; Companion apps for hardware and IoT; Banking-grade secure apps; Event and ticketing apps; Wearable and widget experiences.
- [AI & LLM solutions](https://em27code.com/services/ai-development/): AI agents, assistants, RAG and automation that do real work inside your business. AI agents that use your tools via MCP; Assistants grounded in company knowledge (RAG); Document and email processing; Voice agents and transcription; Recommendation and classification models; AI features inside existing products.
- [SaaS & product development](https://em27code.com/services/saas-product-development/): From idea and MVP to a subscription product with billing, analytics and scale. MVPs for new ventures; Multi-tenant B2B platforms; Subscription billing and plans; Onboarding and growth features; Admin, analytics and reporting; Public APIs and integrations marketplace.
- [E-commerce](https://em27code.com/services/ecommerce/): Shopify, WooCommerce and headless commerce built for conversion and growth. Shopify and Shopify Plus stores; Headless storefronts; B2B portals with custom pricing; Multi-market and multi-currency shops; Marketplace integrations; Product configurators.
- [Cloud & DevOps](https://em27code.com/services/cloud-devops/): AWS, Google Cloud and Azure infrastructure as code, CI/CD and 24/7-ready operations. Cloud architecture and migrations; Kubernetes platforms; Infrastructure as code; CI/CD pipelines; Monitoring, logging and alerting; Cost optimisation (FinOps).
- [Data engineering & analytics](https://em27code.com/services/data-engineering/): Pipelines, warehouses and dashboards that turn scattered data into decisions. Data pipelines and ETL/ELT; Cloud data warehouses; BI dashboards and reporting; Real-time analytics; Data quality monitoring; Data foundations for AI.
- [Integrations & APIs](https://em27code.com/services/integrations-apis/): ERP, CRM, payments and partner systems connected through clean, documented APIs. REST and GraphQL APIs; ERP and CRM integrations; Payment and logistics integrations; Event-driven middleware; Workflow automation; Partner and public APIs.
- [Legacy modernisation](https://em27code.com/services/legacy-modernization/): Old systems rebuilt or migrated step by step, without stopping the business. Code and architecture audits; Framework and language upgrades; Monolith to modular services; On-premise to cloud migrations; Database migrations; Documentation of undocumented systems.
- [QA & security](https://em27code.com/services/qa-security/): Automated testing, accessibility, performance and security reviews built into delivery. Test automation strategy; End-to-end and API tests; Load and performance tests; Accessibility audits (WCAG 2.2, EAA); Security reviews and pentests; Code quality audits.
- [UX/UI & product design](https://em27code.com/services/ux-ui-design/): Research, interface design and design systems, in-house with our sister studio. UX research and usability tests; Product and interface design; Clickable prototypes; Design systems; Motion and micro-interactions; Brand identity with EM27studio.
- [IoT & emerging tech](https://em27code.com/services/iot-emerging-tech/): Connected devices, desktop apps, AR/VR and blockchain, wherever the problem leads. IoT platforms and telemetry; Firmware for connected devices; Desktop apps for Windows, macOS and Linux; AR/VR and 3D configurators; Digital twins; Smart contracts and wallets.

## How we work

- [Approach](https://em27code.com/approach/): Discover (Workshops with your team, users and data. We define goals, risks and what success looks like.) Design (Flows, interfaces and a clickable prototype tested with real users.) Architect (Technology choices, data model, integrations and security, written down and agreed.) Build (Weekly releases to a preview environment. AI-assisted development, human-reviewed code.) Launch (Load tests, security review, monitoring and a rollout plan without surprises.) Grow (Analytics, experiments and a care plan that keeps the product fast, safe and evolving.)
- AI-native delivery: We build with Claude Code and other agentic tools every day. They write, test and refactor code under the direction of senior engineers who own the architecture and review every change. You get the speed of AI and the accountability of a team.
- Project: A defined product or feature, delivered end to end. Fixed scope or fixed budget, Dedicated project lead, Weekly demos.
- Dedicated team: A cross-functional team that works as your product department. Engineers, designers, QA, Your roadmap, our delivery, Scale up or down monthly.
- Care & SLA: Maintenance, monitoring and continuous improvement after launch. Agreed response times, Security updates, Monthly reports.

## Technology

- Frontend: TypeScript, React, Next.js, Vue & Nuxt, Svelte & SvelteKit, Angular, Astro, Tailwind CSS, WebGL & Three.js, PWA, Electron & Tauri, AR/VR & Unity
- Mobile: Swift & SwiftUI, Kotlin & Compose, React Native & Expo, Flutter, Kotlin Multiplatform
- Backend: Node.js, NestJS, Python, Django & FastAPI, Go, Rust, Java & Spring Boot, .NET & C#, PHP & Laravel, GraphQL & REST, WebSockets & WebRTC, Embedded C/C++, Blockchain
- AI & ML: Claude (Anthropic), Claude Code, OpenAI & Gemini APIs, Open models, Model Context Protocol, RAG & vector search, Agent frameworks, PyTorch, Computer vision, Speech & voice, Evals & guardrails
- Data: PostgreSQL, MySQL & MariaDB, MongoDB, Redis, Elasticsearch & OpenSearch, ClickHouse, Kafka & event streaming, BigQuery & Snowflake, dbt & Airflow, Power BI, Looker & Metabase
- Cloud: AWS, Google Cloud, Microsoft Azure, Cloudflare, Vercel & Netlify, Supabase & Firebase, Serverless, IoT & MQTT
- DevOps: Docker, Kubernetes, Terraform & Pulumi, GitHub Actions & GitLab CI, Grafana & OpenTelemetry, Sentry, Linux & Nginx
- Commerce & CMS: Shopify & Hydrogen, WooCommerce, Medusa & commercetools, Stripe & payments, WordPress, Sanity, Strapi & Payload
- Quality & security: Playwright & Cypress, Vitest, Jest & pytest, k6 & load testing, OWASP & pentesting, Accessibility (WCAG), SonarQube & Snyk
- Design: Figma, Storybook, Design systems, Motion & micro-interactions, UX research
- Full list with descriptions: https://em27code.com/stack/

## FAQ

- What does em27code do? em27code is a full-service software house. We design, build and maintain web applications, mobile apps, AI solutions, SaaS products, e-commerce, cloud infrastructure, data platforms and integrations.
- What does AI-native mean for my project? Our engineers use agentic tools such as Claude Code to write, test and document code faster. Senior engineers set the architecture and review every change, so speed never comes at the cost of quality.
- How much does a project cost? It depends on scope, integrations and timeline. After a short discovery call we send a range with the assumptions behind it. Tell us about your project and we will reply within one business day.
- Do you work with clients outside Poland? Yes. We work remotely across Europe and beyond, in English, Polish, French, German and Italian.
- Who owns the code and intellectual property? You do. Repositories, infrastructure and IP belong to you from the start.
- Can you take over an existing project? Yes. We begin with an audit of code, infrastructure and security, then propose a plan to stabilise and continue development.

## Blog

- [AI-native software development: what changes for you as a client](https://em27code.com/blog/ai-native-software-development/): AI coding tools are everywhere. What an AI-native software house does differently, what it changes in cost, speed and quality, and what it does not.
- [RAG in production: building an AI assistant that answers from your documents](https://em27code.com/blog/rag-in-production/): What it really takes to ship retrieval-augmented generation: document preparation, retrieval quality, permissions, evaluation and cost.
- All articles: https://em27code.com/blog/ (RSS: https://em27code.com/blog/rss.xml). Full text of every article: https://em27code.com/llms-full.txt

## Pages

- [Home](https://em27code.com/)
- [Services](https://em27code.com/services/)
- [Technology stack](https://em27code.com/stack/)
- [Company](https://em27code.com/company/)
- [Contact](https://em27code.com/contact/)
- [Blog](https://em27code.com/blog/)

## Other languages

- [Polski](https://em27code.com/pl/)
- [Français](https://em27code.com/fr/)
- [Deutsch](https://em27code.com/de/)
- [Italiano](https://em27code.com/it/)

## Optional

- [Sister company EM27studio, branding studio](https://em27.studio/)
- [em27print, online print shop of the EM27 group (Poland)](https://em27print.pl/)