We buildyour internal toolin 14-day sprints.
AI-first engineering. Hosted in Germany. Cancel monthly.
You book a fixed block of hours for 14 days. We scope it together, work it transparently on a Kanban board and ship piece by piece — whether that's a new tool, a prototype built in one sprint, or a go-live review of your vibe-coded app. With Claude Code, you build alongside us on your own test system.
- Security by design
- Fixed hours per sprint
- Cancel anytime
Custom software development — from idea to safely live.
Product Sprint
Custom software in predictable 14-day sprints. Kanban, fixed hours, cancel anytime.
Learn moreClaude-first AI
AI with Claude across operations, back office and specialised agents & roles.
Learn moreOur infrastructure
Two systems, one safe path live: you build it yourself, we review and release.
Learn moreStrategy & workshops
Clarity before code: product discovery and AI workshops for the right start.
Learn moreCore Technical Competencies
Building platforms is different from developing websites.
Reverse Engineering & System Integrations (LinkedIn / POS)
When APIs are missing or unreliable: we reconstruct logic, data flows and limits – and build stable integrations that genuinely run in production.
- Reverse engineering of platform flows
- Limit, session & risk handling
- Signal & event tracking
- Data extraction & normalisation
Automations & CRM Funnels
We automate recurring sales and customer success processes directly in your CRM – from lead assignment to renewals – without creating chaos in your data model or reporting.
- Lead routing & ownership rules
- Sequences & playbooks in HubSpot/Salesforce
- Clean data models for clear pipelines
- Lifecycle & nurturing flows
- Reporting for revenue teams
Messaging Platform Integrations (Telegram, WhatsApp, iMessage)
Direct messaging solutions as a product: multi-user inbox, team workflows, and scalable integrations into existing systems – with clean logging and compliance.
- Multi-user inbox with roles & permissions
- Channel integrations (Telegram/WhatsApp/iMessage)
- Routing logic for teams & queues
- Webhooks & event streams for backend & CRM
- Monitoring, logging & alerting for messaging
Cross-Platform App Engineering
iOS & Android from one architecture – with synchronous desktop integration and scalable backend.
- React Native codebase
- Shared architecture
- Desktop synchronization
- Performance optimization
- Maintainable system structure
Scaling & Security Engineering (Kubernetes / Terraform / Cloud)
Systems that grow from 1,000 to millions of users – with clean infrastructure, measurable performance, and security by design (not as an afterthought).
- Kubernetes deployments & multi-tenant architecture
- Terraform/IaC & reproducible environments
- Observability (tracing, logs, metrics)
- Auth, permissions & zero-trust patterns
- Backups, redundancy & incident readiness
AI Systems & LLM Integrations
We connect your operational data with modern language models – from retrieval and agents to evaluation and monitoring, so AI becomes more than just a chatbot in your header.
- LLM APIs (e.g. OpenAI, Azure, Anthropic)
- Retrieval & vector search on your own data
- AI agents that interact with your CRM & tools
- Evaluation, guardrails & observability
- Data protection, tenant isolation & compliance
Rapid Prototyping & Product Loops
Design Thinking, Lovable, marketing and development teams in one iterative system.
Your app works. But will it hold?
Vibe coding gets you to a working click-path in days.
What's missing only shows under load: permissions, data protection, backups, cost per user.
We review your app in one sprint — and you get an honest list, not a rewrite pitch.
What holds, stays. What breaks, we rebuild deliberately.
Experience that counts.
Custom software for SMEs & startups
Design Thinking background
University collaborations
Deep connections in Berlin's tech and GTM ecosystem
Integrated with your tools
What we're building right now.
Digitalising property management for owners: a platform with free AI tools such as an owners'-association dashboard and a service-charge checker — built AI-first.
An online job platform plus an AI-first back-office tool for the largest sales community in the DACH region — with custom MCPs and HubSpot integration.
LinkedIn outreach infrastructure for agencies and GTM teams: connect unlimited senders, import leads from Clay or Sales Navigator and launch scalable campaigns in minutes — EU hosting, GDPR compliant.
Internal tools, customer portals, integrations and go-live reviews for SMEs & startups across the DACH region — many under NDA.
What drives us — and what our clients say.
We only build software we can stand behind ourselves – and then we hand our clients the keys to keep developing it on their own. That mix of speed and engineering rigour is why our projects hold up.
We didn't want to rent a job board. After 12 weeks our own job platform was live. No compromises.
Start with a workshop.
- Joint assessment of where you stand
- Use-case & potential analysis
- Product discovery: target picture & scope
- AI check: where Claude helps in operations & back office
- Integration needs with your existing tools
- Concrete sprint & implementation plan
From MVP to product.
- Fullstack development
- Backend architecture
- Server infrastructure
- Cloud architecture (Google / Microsoft)
- API structure
- Scalability & monitoring
Flexible sublet at Kudamm
Why ReachOut
Built in West Berlin.
We build what we take responsibility for.
Engineers, not salespeople.
Small unit. High leverage.
Deep B2B understanding.
Technology we build on.
Claude in 6 roles: how our entire company works with AI — live.
40 minutes, one shared screen, no buzzword bingo. Moritz & Christoph walk through real workflows — from sales to accounting.