Web & mobile development
Core Build is full-stack engineering for teams who need software that works on day one and holds up a year later. We build web applications, mobile apps, APIs, and custom systems on modern, maintainable stacks — with the architecture decisions made up front, not discovered in production.
Every project starts with the same question: what does this system actually need to do, at what scale, for how long? That determines the stack, not the other way around. We build on React and Next.js for web, Flutter for cross-platform mobile, and Node.js or Laravel/PHP for APIs and backend systems — chosen for the specific project, not defaulted to a house stack.
We work across the full range: greenfield MVPs that need to validate fast, enterprise platforms that need to integrate with existing systems and meet security requirements, and legacy modernization where the hard part is untangling years of technical debt without breaking what already works.
Every engagement includes the parts that don't show up in a feature list but determine whether the system survives contact with real users: proper error handling, monitoring, test coverage on the paths that matter, and documentation your team can actually use after we hand it off.
What's included
Web applications — React, Next.js, Node
Modern, performant web applications built on frameworks chosen for your specific scale and requirements, not a default template.
Mobile apps — Flutter (iOS & Android)
Cross-platform mobile apps from a single Flutter codebase, native performance, shipped to both app stores.
APIs & enterprise systems — Laravel, PHP
Robust backend systems and APIs for enterprise environments with existing infrastructure and integration requirements.
Custom software development
Purpose-built internal tools and systems for workflows that off-the-shelf software doesn't fit.
Rapid prototyping
Fast, functional MVPs to validate a product direction before committing to a full build.
Legacy modernization
Incremental modernization of aging systems — untangling technical debt without a risky full rewrite.
Frequently asked questions
Based on the project's actual requirements — expected scale, team's existing stack, integration needs, and timeline. We default to React/Next.js for web and Flutter for mobile unless there's a specific reason to choose otherwise, and we'll tell you why.
Explore other branches
Ready to talk about core build?
Tell us what you're trying to solve — we'll tell you exactly how we'd build it.