Design before code
Every project starts with low-fidelity mockups, then high-fidelity UX in Figma — so you see and shape the product before a line of code is written.
Build · Harden · Run — Web & Mobile, US & Europe
We build web and mobile apps — and take them to production
Building an app is faster than ever. Making it reliable, secure, scalable and compliant is still engineering work. We do both: new web and mobile products in Next.js, NestJS, Laravel and Flutter, and the hardening, AWS infrastructure and SOC 2-ready operations that keep them running for clients in the US, Spain and Sweden — including apps first built with AI tools.
In production today — built, shipped, and operated by NextGen
- Door2DayHome services marketplace · Spain & Sweden
- US Healthcare PlatformRounds & compliance operations · USA
- Flutter · Swift · KotlinMobile engineering
- Next.js · NestJS · LaravelWeb platforms
- AWS · Stripe ConnectInfrastructure & payments
How We Work
From first mockup to production — and beyond launch
Fast with AI, accountable without it
We use AI tools to build faster, and we are open about it. What you pay for is judgment: architecture, security, data integrity and a senior engineer who owns the result. Every production change ships with a written plan, a rollback and tests.
We run what we ship
Launch isn't the finish line. We operate production systems on AWS — database migrations, monitoring, incident response, and security hardening — which is why our client relationships run for years, not sprints.
About NextGen
The team for the part after “it works on my machine”
0+Core Services
0+Countries Served
0+Industries
0+Clients
Anyone can get an app built today — in-house, by a freelancer, or with AI tools. Fewer teams can make it hold up under real users, real data and a security review. NextGen does both: we build web and mobile products end to end, and we take existing ones to production — hardening, infrastructure, compliance and ongoing operations. We run this today for a US healthcare platform and a two-country marketplace in Spain and Sweden.
- Production readiness: Audits and rescues of existing or AI-generated codebases — reliability, performance and security gaps closed, tests and CI/CD added, before they cost you customers.
- Mobile: Flutter cross-platform plus native iOS (Swift) and Android (Kotlin), including SDK development and app store delivery.
- Web & backend: Next.js, NestJS, Laravel, and PostgreSQL/MySQL — from marketplaces to internal enterprise tools.
- Compliance-ready operations: AWS hardening, IAM least-privilege, zero-downtime Blue/Green database migrations, and audit-ready infrastructure supporting our clients' SOC 2 programs and GDPR obligations.
- Marketplace payments: Stripe Connect end to end — provider onboarding, EU KYC, multi-country payouts, and the edge cases that only show up in production.
We work with 3–4 hours of daily overlap with Central European and US Eastern time, communicate in clear written English, and can contract as your delivery team or as a white-label engineering partner behind US and European agencies.
Our Services
See all services & pricingMobile App Development
End-to-end delivery of Flutter cross-platform and native iOS (Swift) / Android (Kotlin) apps — from concept through App Store and Play Store release.
Web & SaaS Development
Production web platforms built on Next.js, NestJS, and Laravel — marketplaces, SaaS products, and internal tools — plus takeover and rescue of codebases someone else, or an AI tool, wrote.
Cloud Infrastructure & DevOps
Production-readiness audits, AWS architecture and day-to-day operations: zero-downtime database migrations, monitoring and alerting, cost control, and incident response for systems that can't go down.
Payments & Marketplaces
Stripe Connect marketplace integrations done right — provider onboarding, EU KYC requirements, multi-country payouts, and payment UX proven in Spanish and Swedish markets.
Security & Compliance Engineering
IAM least-privilege, network hardening, SSL automation, and audit-ready AWS infrastructure for healthcare companies and teams working toward SOC 2 or operating under GDPR.
UI/UX & Product Design
Low-fidelity wireframes to high-fidelity Figma prototypes, localized for multiple languages and markets before development begins.
Fixed price · Fixed scope
Five things you can buy today, at a price you can see
No discovery call needed to get a number. Each one is scoped, priced and already delivered in production for clients in the US and Europe.
Case Studies
Real platforms we build and operate today
Marketplace · EU
Client IndustryHome Services — Spain & Sweden
StackNext.js · NestJS · Flutter · PostgreSQL
About
A two-sided home services marketplace operating in Spain and Sweden. We deliver the web platform, the customer and provider mobile apps, Stripe Connect payments with provider KYC onboarding, and full localization across Spanish, Swedish, and English — and we operate it in production.
Read the full case study →NextGen
Reviews
Get in Touch
Start with a small, low-risk engagement
Most clients start with a 2–4 week paid pilot — a scoped feature, migration, or audit — before committing to more. We keep 3–4 hours of daily overlap with CET and US Eastern hours and reply within one business day.
Dhaka
Kazi Nazrul Islam Avenue, C. A. Bhaban (4th Floor), Kawran Bazar, 1215
Chattogram
Shimil Villa, Road # 5, Co-operative H. Society, Kulshi