Software built for your business.
Enterprise applications, booking systems, financial platforms. React, Vue, TypeScript, Node.js — engineered from scratch, owned by you.
Seypro builds custom software — web applications, SaaS platforms, booking engines, and financial systems — using React, Vue, TypeScript, and Node.js. Full-stack development with CI/CD, cloud deployment, and source code ownership.
We build custom software — web applications, SaaS platforms, booking systems, financial tools, and enterprise dashboards — using TypeScript, React, Vue.js, Node.js, and modern cloud infrastructure. Full-stack, from database architecture to pixel-perfect frontend, deployed on AWS, Azure, or Google Cloud with CI/CD pipelines and auto-scaling built in from day one.
Our stack is opinionated: shared TypeScript types across frontend and backend, PostgreSQL or MongoDB depending on the data model, REST or GraphQL APIs, comprehensive test coverage, and security-first architecture following OWASP Top 10 guidelines — backed by our dedicated security and compliance practice. You get clean git history, documented code, and systems that future developers can maintain without calling us. Source code is yours, always.
We've built systems that process real transactions, serve regulated industries, and run in production with 99.9%+ uptime. Whether you need an MVP in 4-8 weeks, a multi-year platform with a dedicated team, or systems augmented with AI and automation, the engineering quality is the same — agile sprints, weekly demos, and architecture designed for what comes next.
Built for enterprises that can't compromise.
Financial platforms. Booking systems. Trading infrastructure. When off-the-shelf fails, we build what scales.
Complete Systems From Day One
Frontend and backend built together. Server-side rendering talking to REST APIs with shared TypeScript types across the stack. Zero integration headaches. One team, full picture.
Ship Fast or Scale Forever
First release in 4–8 weeks. Or build platforms that scale globally. Hour 0–24: architecture. Hour 24–48: backend deployed. Hour 48–72: frontend live. Both speeds, same team.
Two Engineers Beat Eight
Stalled project? We've replaced 8-person teams with 2 engineers and clear architecture. Three major features in month one. No drama. Just execution.
Built Secure and Fast
Security by Default
Snyk and SonarQube scans on every commit. RBAC on every endpoint. Secrets in AWS Secrets Manager or Vault—never in code. OWASP Top 10 compliance is engineering discipline, not a checkbox.
Performance Non-Negotiable
CDN for every asset. Redis caching. Edge functions on Vercel and Cloudflare. Monitoring with OpenTelemetry, Grafana, Prometheus. Sentry catches errors before users notice. PagerDuty alerts us, not you.
MERJ Exchange
National securities exchange platform. Regulated trading infrastructure serving global markets. Built with React, Node.js, and AWS cloud architecture.
Visit MERJ ExchangeTechnology Stack
The Right Stack For Every Outcome
We pick frameworks based on what you're building—not what we're comfortable with.
React Framework
When SEO matters. Hybrid SSR/SSG for instant page loads. Rich component ecosystem. Enterprise patterns.
Vue Framework
When Vue's ergonomics fit your team. Modern server architecture, excellent DX. Clean server/client separation.
Node.js Backend
Our backend standard. Opinionated architecture, dependency injection, guards/interceptors. Testable. Scales.
Mobile Development
Cross-platform mobile. Shared TypeScript codebase. Native modules when performance demands it.
When We Recommend What
Modern Frameworks, Zero Templates
Every line written for your business. React, Vue, TypeScript, Node.js—the technologies powering enterprise applications worldwide.
Frontend
- React / Next.js
- Vue.js / Nuxt.js
- TypeScript
- Tailwind CSS
- Three.js
Backend
- Node.js / NestJS
- Python / FastAPI
- Go
- GraphQL / REST
- WebSockets
Database
- PostgreSQL
- MongoDB
- Redis
- Elasticsearch
- S3
Cloud & DevOps
- AWS / Vercel
- Docker / Kubernetes
- CI/CD Pipelines
- Terraform
- OpenTelemetry
What we build and how
Used by MERJ Exchange and Cable & Wireless. Architecture designed for your data model, compliance requirements, and scale targets.
Next.js & Nuxt Platforms
Web applications built from scratch with Next.js, Nuxt, React, and Vue. Hybrid rendering for SEO. Real-time features. Tailored to your business.
Technologies Used:
React Native Development
iOS and Android apps built with React Native. One codebase, native performance. Offline-first for connectivity challenges.
Technologies Used:
NestJS & Node.js APIs
Scalable APIs and backend systems with NestJS. Every endpoint, every schema, every business rule — built for your data model.
Technologies Used:
Bespoke Solutions
Custom enterprise software that replaces off-the-shelf limitations. CRM, ERP, booking engines—built for your exact workflow.
Technologies Used:
How We Deliver
Discover. Architect. Build. Launch. Operate. Clear outcomes at every step.
Discover
Goals, risks, scope. Align on constraints and success metrics.
Architect
Choose patterns, design data, security and SLAs.
Build
Iterative sprints, automated tests, preview environments.
Launch
Production hardening, failover, playbooks, load tests.
Operate
SRE practices, observability, incident response, roadmap.
Embedded or standalone
Join your Slack. Use your tools. Daily standups. PR reviews. We integrate into your workflow or run the project end-to-end.
Audit, plan, relaunch in 2–4 weeks
Add 2–3 engineers for 6-month sprints
Fixed scope, clear dates, acceptance criteria
Built for Performance & Security
Every application ships with production-grade observability, load-tested endpoints, and security controls baked into the architecture.
Sub-second page loads
CDN delivery, edge caching, code splitting, and lazy loading tuned per route
OWASP-compliant security
Encryption at rest and in transit, RBAC on every endpoint, automated dependency scanning
Horizontal scaling
Auto-scaling groups, container orchestration, and database read replicas configured from day one
Production monitoring
OpenTelemetry traces, Sentry error tracking, PagerDuty alerting, and automated failover
Questions
Common questions about working with us
Modern stack: React/Next.js, Vue/Nuxt frontends. Node.js, Python backends. PostgreSQL, MongoDB databases. AWS, Vercel cloud deployment with CI/CD.
Yes. 30 days post-launch support included. Then monthly retainers for maintenance, updates, features, and technical support — scoped to your needs.
Security-first: encrypted transmission, OAuth 2.0/JWT auth, RBAC, regular audits, GDPR compliance, secure cloud infrastructure. All code security-reviewed before deployment.
Absolutely. We augment teams, provide technical leadership, conduct code reviews, or own specific modules. Seamless integration with your workflow.
Related insights
Tell us what you need built.
We'll scope it, architect it, and ship it. Your code, your infrastructure, your ownership.