Cloud & Custom Software Development
From MVP to enterprise platform — built on Azure and AWS with .NET 8, React, and Clean Architecture.
Enterprise-Grade Cloud Software, Built Right
We design, build, and operate custom cloud-native applications that scale with your business.
HEXCLOUD.AI specializes in building custom cloud-native software for organizations that need more than off-the-shelf solutions. Whether you are launching a new SaaS product, modernizing a legacy system, or building an internal platform to automate critical business processes, our engineering team delivers production-grade applications on Microsoft Azure and Amazon Web Services. We work exclusively with .NET 8 on the backend and React with TypeScript on the frontend, combining Clean Architecture principles with domain-driven design to create systems that are maintainable, testable, and built for long-term evolution. Every project starts with a structured discovery phase where we map your business requirements to technical architecture, ensuring that what we build actually solves the problem rather than just satisfying a specification.
Our development methodology integrates DevSecOps practices from the first sprint. Infrastructure is provisioned with Terraform, applications are containerized with Docker, and CI/CD pipelines automate everything from code compilation to production deployment. Security is not an afterthought — we embed OWASP security controls, implement OAuth 2.0 authentication flows, encrypt data at rest and in transit, and run automated vulnerability scans on every build. This approach means your application is secure, observable, and deployable from day one, not just after a last-minute security review before launch. We have delivered over 40 cloud projects across sectors including construction, public procurement, healthcare, and financial services, each with measurable outcomes: reduced operational costs, faster time-to-market, and improved system reliability.
What sets HEXCLOUD.AI apart is our end-to-end ownership model. We do not just write code and hand it over — we architect, develop, deploy, monitor, and operate. Our team includes cloud architects, full-stack developers, DevOps engineers, and security specialists who work together as an integrated unit. After go-live, we provide SLA-backed managed services with guaranteed response times, proactive monitoring, and quarterly architecture reviews. This means you get a technology partner, not just a vendor. Whether you need a minimum viable product built in 8 weeks or a multi-year enterprise platform with complex integrations, we bring the same rigor, transparency, and commitment to quality that has earned us the trust of organizations across Europe.
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What We Deliver
Eight core capabilities that cover the full software development lifecycle, from architecture to operations.
Custom Web Applications (.NET 8 + React)
We build full-stack enterprise web applications using .NET 8 with Clean Architecture on the backend and React with TypeScript on the frontend. Every project follows SOLID principles, includes comprehensive unit and integration tests, and ships with automated CI/CD pipelines. Our applications handle thousands of concurrent users with sub-200ms response times.
Cloud Infrastructure (Azure / AWS)
Design and deploy resilient cloud infrastructure on Microsoft Azure or AWS. We implement Infrastructure as Code with Terraform, configure virtual networks with proper segmentation, set up managed databases, and establish disaster recovery strategies. Every environment is production-grade from day one with cost monitoring and auto-scaling policies.
DevOps & CI/CD Pipelines
Automate your entire software delivery lifecycle with GitHub Actions or Azure DevOps. Our pipelines include automated builds, multi-stage testing (unit, integration, E2E), security scanning with SAST/DAST tools, container image builds, and blue-green deployments. Average deployment frequency: multiple times per day with zero downtime.
Database Design & Optimization
Architect high-performance database solutions with PostgreSQL, SQL Server, or Azure Cosmos DB. We design normalized schemas, implement efficient indexing strategies, configure read replicas for scaling, and set up automated backup and point-in-time recovery. Performance tuning reduces query times by 60-80% on average.
Secured-by-Design Development
Security is embedded into every phase of development, not bolted on after. We implement OAuth 2.0 and OpenID Connect authentication, role-based access control, data encryption at rest and in transit, input validation, and regular dependency vulnerability scanning. Our approach aligns with OWASP Top 10 and ISO 27001 Annex A controls.
Monitoring & Operations
Full observability stack with Azure Monitor, Application Insights, Grafana, and PagerDuty. We configure custom dashboards, set up alerting rules for SLA thresholds, implement distributed tracing across microservices, and establish runbooks for incident response. Mean time to detection under 5 minutes, mean time to resolution under 30 minutes.
Microservices Architecture
Decompose monolithic applications into independently deployable microservices using domain-driven design. Each service has its own database, communicates via REST APIs or message queues (Azure Service Bus, RabbitMQ), and is containerized with Docker. We implement API gateways, service mesh patterns, and circuit breakers for resilience.
Performance Optimization
Comprehensive performance engineering including load testing with k6, database query optimization, CDN configuration, response caching strategies, and frontend bundle optimization. We establish performance budgets, implement lazy loading, and configure auto-scaling to handle traffic spikes. Typical results: 40-70% improvement in page load times and API response times.
Our Development Process
A proven six-phase methodology that delivers predictable outcomes.
How We Deliver
Six structured phases from initial discovery to ongoing operations.
Discovery
We conduct structured discovery workshops with your stakeholders to understand business goals, technical constraints, existing systems, and success criteria. Deliverables include a requirements document, system context diagram, and preliminary cost estimate.
Architecture
Our architects design the cloud infrastructure, application architecture, database schema, and integration patterns. We produce Architecture Decision Records (ADRs), infrastructure diagrams, and a detailed project plan with milestones.
Sprint 0
We set up the development environment, CI/CD pipelines, Infrastructure as Code templates, monitoring dashboards, and coding standards. The team configures source control branching strategies and automated quality gates.
Development
Agile sprints with 2-week iterations. Each sprint includes planning, development, code reviews, automated testing, and a demo. You have full visibility through daily standups, sprint reviews, and a shared project board.
Security Review
Dedicated security sprint with penetration testing, SAST/DAST scanning, dependency audit, infrastructure security review, and compliance verification. We remediate all critical and high findings before go-live.
Go-Live & Operate
Blue-green deployment to production with rollback capability. Post-launch includes 30-day hypercare support, SLA-backed monitoring, and knowledge transfer. Optional ongoing managed services with guaranteed response times.
Our Technology Stack
Industry-leading tools and frameworks we use to build reliable, scalable software.
Smart Procurement — Public Procurement SaaS Platform
Challenge
Public procurement data in Romania was scattered across multiple government portals with inconsistent formats, making it nearly impossible for companies to efficiently find and track relevant tenders. Manual monitoring consumed dozens of hours per week and opportunities were frequently missed.
Solution
We built the Smart Procurement Platform as a multi-tenant SaaS platform using .NET 8, React, PostgreSQL, and Azure. The architecture implements CQRS with MediatR for command/query separation, Entity Framework Core with multi-tenant data isolation, and a background processing engine that aggregates procurement data from multiple government sources in real-time. The frontend uses React with TypeScript and a component library built on Tailwind CSS.
Results
Frequently Asked Questions
Common questions about our cloud development services.
Let's Architect Your Cloud Solution Together.
Start with a free 60-minute discovery session. We'll assess your requirements, outline the architecture, and provide a transparent cost estimate — no commitment required.