Custom web & application development
SaaS, operational dashboards, B2B portals, and internal systems — for companies that have outgrown templates and need architecture built on their business workflow.
What we build — concretely
Custom web development means an application built for your business workflow, not adapted from a template. We work with companies in Romania, the EU, the UK, and the US that have specific needs not solvable by off-the-shelf SaaS products.
Multi-tenant SaaS apps
Subscription platforms, automated billing (Stripe, Paddle), permission management, white-label.
Dashboards & analytics
Admin interfaces with real-time charts, Excel/PDF exports, role-based access control.
B2B portals & marketplaces
Supplier integrations, product catalogs, order workflows, automated invoicing.
Internal systems (custom ERP/CRM)
Replace Excel and manual processes: approval flows, reporting, integration with external systems.
Education platforms (LMS)
Courses, video streaming, quizzes, certificates, per-module payments, community.
FinTech / EduFin apps
Trading platforms, paper trading, broker API integrations (Interactive Brokers, Alpaca), compliance.
Tech stack
We choose the stack based on project requirements, your existing ecosystem, and the team that will maintain the code after launch.
Frontend
- React + Next.js 14 — for SEO-friendly apps, server components, edge rendering
- Vue.js 3 / Nuxt — simpler alternative for Vue-friendly teams
- TypeScript — strict mode, zero
anytolerated - Tailwind CSS or CSS Modules — reusable design system
Backend
- Node.js + Express/Fastify/NestJS — for end-to-end JavaScript APIs
- Laravel (PHP 8.3) — for projects with complex Romanian integrations (e-Factura, ANAF, PayU)
- Python (FastAPI / Django) — for AI/ML, data pipelines, scientific integrations
- Bun — for performance-critical workloads
Databases & infrastructure
- PostgreSQL (default), MongoDB, Redis for cache
- Cloud: AWS, Google Cloud, Hetzner (cost-efficient EU)
- CI/CD: GitHub Actions, GitLab CI, zero-downtime deploys
- Observability: Sentry, Datadog, Grafana
Process — 2-week sprints
I work in short iterations with regular demos so you see progress early. You'll see progress within the first 2 weeks — no waiting months for a demo.
- Discovery (1-2 weeks): stakeholder workshops, user stories definition, wireframes, technical architecture, detailed estimate.
- Design (parallel with dev): UI/UX design in Figma, clickable prototype, reusable design system.
- Sprint 1: repository setup, CI/CD, authentication, first critical flow. Demo at sprint end.
- Sprints 2-N: incremental feature development, daily code reviews, automated tests, bi-weekly demos.
- UAT & launch: beta with real users, bug fixing, performance optimization, production deploy.
- Maintenance: SLA, monitoring as agreed, security updates, new features on demand.
Why Faintech Solutions
- Senior developer: senior developer — no handoff to juniors, no «training on the client's dime».
- Clean, tested code: mandatory code reviews, unit + integration tests, 80%+ coverage.
- Direct communication: weekly update call, project management tool access (Jira/Linear), Slack/email response <24h.
- Total IP transfer: code, docs, infrastructure — all yours from day 1.
- Predictability: detailed roadmap, clear milestones, no billing surprises.
- Compliance: GDPR, audit logs for regulated sectors.
See a real example: how we built the La Iancu site or the Nabab Vision platform.
FAQ
How much does custom web application development cost?
Do you work fix-price or time & materials?
What stack do you use?
Default: TypeScript + Next.js + Node.js/NestJS + PostgreSQL. We choose alternatives (Laravel, Django, Vue) when context calls for it. We never push a stack you cannot maintain after delivery.
How long does development take?
Simple MVP: 6-10 weeks. App with auth, payments, integrations: 3-6 months. Enterprise system: 6-12+ months.
Does the code remain mine?
Yes. The repository is yours from day 1, contract includes clear IP transfer. No «hidden code» that locks you in.
Planning a web application?
Schedule a complimentary consultation. You will receive an indicative estimate within 48 hours.