Best fit
A new or existing application with multiple user roles, integrations, sensitive data, operational workflows, or procurement and compliance requirements that must be designed into the system.
Enterprise Application Development
CoreLine builds and modernizes enterprise applications - web, mobile, and backend - for mid-market and enterprise organizations. Senior engineers own architecture through deployment, with governance, compliance, and observability built in from day one.
Custom Enterprise Apps
Multi-tenant SaaS platforms
Internal tools and portals
API and integration layers
Platform Modernization
Legacy system migration
Cloud-native re-architecture
Monolith decomposition
Governance & Compliance
SOC 2 / ISO 27001 readiness
HIPAA / GDPR compliance
Audit trail and access control
Engagement fit
When does enterprise application development make sense?
Last reviewed
Reviewed by
Dominik Dragičević, Founder and CEO
This engagement is for organizations that need a business-critical web, mobile, or backend system to integrate with existing operations and meet explicit security, reliability, and governance requirements. CoreLine takes delivery ownership from architecture through production instead of supplying an isolated feature team.
Not the right fit
A marketing website, undirected staff augmentation, or a project where nobody on the client side can own product decisions, domain rules, and acceptance criteria.
First engagement
Discovery maps users, business processes, data, integrations, non-functional requirements, delivery constraints, and the decisions that could create rework later.
First deliverable
An agreed solution boundary, architecture, release plan, risk register, and estimation model tied to production milestones rather than an unprioritized feature list.
Sound familiar?
Your internal tools were built 10 years ago and the team that built them is gone
You need enterprise-grade security and compliance but your dev partner only ships MVPs
Your current vendor takes months to ship features that should take weeks
You need a credible phased delivery plan instead of one distant launch date
How we deliver
Enterprise engagements follow a structured delivery model: discovery, architecture, iterative build, and production hardening. Every sprint ships working software, not slide decks.
Discovery & Architecture
We assess existing systems, define integration boundaries, establish compliance requirements, and produce a technical architecture document before writing code.
Iterative Build & Integration
Two-week sprints ship working increments. API contracts are locked early so frontend and backend teams work in parallel. CI/CD is live from sprint one.
Hardening & Launch
Performance testing, security audit, compliance verification, and runbook creation precede production deployment. Post-launch we monitor SLOs and operate under error budgets.
Delivered outcomes
4+ years
continuous enterprise partnership
Insync Insurance - full digital transformation
Evidence: Insync Insurance case study →6 months
kickoff to HIPAA-compliant production
Orah Care home healthcare platform
Evidence: Orah Care case study →10+ services
end-to-end for one client
Strategy through QA for Insync
Evidence: Insync Insurance case study →
What we work with
Using solutions such as React Native, Flutter, AWS, and many others makes it possible for us to upgrade your product as much as possible and to achieve a thriving collaboration. Here you will find our guide through our most used technologies and case studies related to each one.
AWS
AWS offers the tools to build powerful, flexible, and scalable applications, from compute and storage to databases and content delivery.
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Flutter
Simply put, Flutter is Google’s cross-platform framework that lets you build mobile, web, desktop, and embedded apps, all from a single codebase.
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React Native
React Native is Facebook’s cross-platform framework that combines the best of React with native platform features - perfect for new projects or enhancing existing ones.
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Other technologies we use
PHP
Node.js
Vue.js
React.js
Frequently asked questions
We build custom web applications, mobile platforms, internal tools, API layers, and SaaS products for mid-market and enterprise organizations. Every engagement includes architecture, implementation, testing, CI/CD, and production observability.
Compliance requirements are defined during discovery and translated into architecture, access control, data handling, logging, testing, and evidence requirements. We have delivered a HIPAA-compliant system; formal certification or legal compliance decisions remain with the client's authorized assessors and advisers.
Yes. We integrate with existing systems, APIs, and infrastructure. We don't force stack migrations unless there's a clear technical reason. Our teams work in TypeScript/React, React Native, Node.js, Python, Go, and maintain experience migrating from PHP, .NET, and Ruby on Rails.
Timing depends on scope, integrations, data migration, procurement, and compliance evidence. Discovery produces a milestone-level estimate and release plan; the Orah Care case study is one public example of a functional HIPAA-compliant MVP delivered in six months, not a universal timeline.
You do. Code, repositories, data, and any trained models are yours. We also offer Build-Operate-Transfer engagements where CoreLine builds and operates the product, then transfers the full stack and team at a pre-agreed milestone.
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Tell us what you need built, modernized, or unblocked. We scope it in one call.