We join founders building new products and teams shipping within larger companies. Mobile apps, AI integrations, fintech, IoT, complex backends — wherever the engineering needs to be right the first time.
You can hire developers anywhere. What's harder to find is a team that understands the product, makes technical decisions with business context, and owns the outcome — not just the tickets.
We embed with your team — same Slack, same standups, same stakes. Not a vendor you manage. An engineering partner that ships with you.
Whether you need a full product team or senior engineering support for a specific initiative, here's where we add the most value.
Before writing code, we figure out what the first version should actually contain. User flows, technical feasibility, launch priorities, and the tradeoffs that make or break an MVP. The goal is a product small enough to ship and useful enough to learn from.
iOS and Android — native and cross-platform. Auth, payments, push notifications, BLE, analytics, CI/CD pipelines, App Store and Play Store releases. We've shipped apps that handle real transactions and real users at scale.
We integrate AI where it solves a real problem — not as a feature checkbox. LLM-powered copilots, workflow automation, RAG pipelines, agentic tools with human oversight. Properly architected with guardrails, cost controls, and fallback paths.
Payment flows, wallet UX, on-chain integrations, KYC/AML constraints, multi-party settlement logic. When money moves or data is sensitive, the engineering has to be right. We've built systems where downtime and edge cases have real financial consequences.
We plug directly into your team — not as staff augmentation, but as engineers who own outcomes. For startups that need a technical co-pilot, or companies that need senior capacity on a specific product push. Your tools, your rituals, your pace.
Same structure whether we're building your v1 or reinforcing an existing team. Understand, scope, build, ship, improve.
Users, goals, constraints, risks. We align on what success looks like before touching any code.
Architecture, user flows, integrations, tradeoffs. Everything decided before development starts.
Weekly builds you can see and test. Pragmatic decisions. Always moving toward a shippable release.
App store submission, deployment, monitoring, analytics. We handle the release and stay through go-live.
After launch, we iterate based on real usage data and user feedback. The product gets better with every cycle.
We don't publish client logos without permission. Here's what the work looks like in practice.
Mobile payment app processing real transactions across multiple EU markets. Payment gateway integrations, PSD2 compliance, real-time balance sync. In production with paying users.
Native mobile app managing Bluetooth-connected hardware devices. OTA firmware updates, real-time sensor data, offline-first sync. Shipped to App Store and Google Play.
Wallet and portfolio experience with on-chain transaction tracking, multi-chain support, and fiat on-ramp integration. Built for speed and trust in a regulated environment.
LLM-powered workflow automation for an internal operations team. Document processing, structured extraction, human-in-the-loop review. Reduced manual work by hours per day.
End-to-end product build for an early-stage startup — from initial scoping through App Store launch. Backend, mobile app, admin dashboard, analytics. First users within 10 weeks.
Joined an existing engineering team at a growing company to lead a mobile product initiative. Architecture decisions, code review, mentoring, feature delivery. Multi-year engagement.
You have an idea or early product that needs senior technical direction and execution to reach real users.
You need engineering capacity for a specific product push — mobile, AI, fintech — without hiring a full team permanently.
Your product involves payments, hardware, blockchain, sensitive data, or AI — where the engineering decisions carry real stakes.
Tell us what you're building, where you're stuck, or what needs to change. No pitch decks, no 12-step sales process.
or email us at info@reactive.studio
