Mobile Apps & Web
Platforms Built in 3D.
From high-concurrency cloud backends to cross-platform mobile apps, ONION TECH builds multidimensional digital products engineered to scale.
Holographic product engineering
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Years in Industry
Engineering digital products & modern software since 2020
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Projects Completed
Cross-platform mobile apps, SaaS, and web portals shipped
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Client Rating
Reliable sprint milestones & clear, transparent communication
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Global Clients
Partnerships across US, UK, Middle East, Europe & Asia
Engineering Solutions Built For Real Impact
We partner with ambitious startups and enterprises to design, build, and scale modern digital solutions with zero compromises on quality.
iOS & Android Solutions
Mobile App Development
Craft high-performance, pixel-perfect mobile applications using modern cross-platform & native engineering. We build experiences that users keep on their home screen.
- Flutter & Dart cross-platform architecture
- Native iOS (Swift) & Android (Kotlin) integrations
- Offline sync, push notifications & background tasks
- App Store & Google Play Store release management
Fast, SEO-Optimized & Scalable
Modern Web Applications
Develop responsive, lightning-fast web apps and SaaS platforms built with Next.js, React, and TypeScript. Optimized for conversion, speed, and clean code.
- Server-side rendering (SSR) & static site generation
- Full-stack Next.js App Router & server actions
- Modern UI component architecture & Tailwind styling
- Advanced SEO, analytics & Lighthouse 95+ score
Tailored to Your Operations
Custom Enterprise Software
Eliminate manual bottlenecks with custom enterprise software, CRM, ERP, and automation workflows engineered specifically to fit your organizational model.
- Bespoke internal dashboards & CRM platforms
- Automated business workflows & data pipelines
- Role-based access control & enterprise audit trails
- Seamless integration with legacy ERP systems
User-Centered Interfaces
UI/UX & Product Design
Transform ideas into intuitive user journeys. We craft design systems, wireframes, and high-fidelity interactive prototypes in Figma before writing code.
- User research, persona mapping & competitive audit
- Interactive Figma design prototypes & design systems
- Dark & light theme multi-device responsive design
- Design-to-code handoff with tokenized design systems
Secure & Resilient Infrastructure
Backend & Cloud API Systems
High-concurrency backend services, RESTful APIs, PostgreSQL/NoSQL databases, and serverless infrastructure built to withstand massive scale safely.
- Node.js, Express & Python backend architectures
- PostgreSQL, MongoDB & Redis caching strategies
- Authentication, OAuth, JWT & role permissions
- Dockerized container deployments & cloud CI/CD
From Zero to Production Ready
MVP to Scale Consultation
Rapidly launch Minimum Viable Products (MVPs) to test product-market fit, gain early customer traction, and scale systematically without technical debt.
- Rapid 4–8 week MVP build & release cycle
- Product roadmap & technical feasibility audit
- Cost-effective serverless architecture setup
- Post-launch telemetry, analytics & iteration support
Selected Product Work
A selection of battle-tested product experiences across social, analytics, productivity, and financial technology.
Connectify Mobile
A feature-packed mobile social platform featuring instant real-time chats, ephemeral stories, geo-tagged community feeds, and automated moderation.
FluxBoard Cloud BI
Modern enterprise analytics platform with interactive live charts, cross-department role permissions, automated PDF reports, and real-time telemetry.
Taskly Pro Workspace
Sprint planning and task management application built for high-output engineering teams. Offline-first sync, Gantt view, and automated Jira integrations.
PayPulse FinTech
Next-generation cross-border payment portal and digital wallet. Features multi-currency accounts, instant biometric authentication, and automated KYC pipelines.
Our Published Apps
Official mobile applications developed by ONION TECH. Public legal policies and terms are permanently accessible for Google Play Console & App Store compliance.
Expiry Bin
Track • Remind • Stay Healthy
A smart household and medicine inventory manager that tracks expiration dates, scans product barcodes, and delivers timely reminders to reduce waste.
Glass Widget
Aesthetic Glassmorphic Widgets for Android
A premium suite of translucent glassmorphism widgets for Android home screens. Operates 100% offline with zero data collection, no account requirements, and zero advertising.
Full-Stack Architectural Dimensions
Hover or click each layer below to isolate and inspect our production engineering stack in 3D perspective space.
Cross-Platform Mobile & Web
High-Throughput Edge Routing
Asynchronous Scalable Workers
Persistent Enterprise Storage
01 · Client Presentation Tier
Cross-Platform Mobile & Web
Pixel-perfect Flutter iOS/Android apps, SSR Next.js 16 web applications, and tokenized design systems.
Engineered With
Battle-Tested Tools & Modern Frameworks
We avoid outdated stacks. Every library, framework, and database is hand-picked for speed, developer velocity, and zero technical debt.
Flutter
Cross-platform iOS & Android apps with 60fps performance
React & Next.js
Server-side rendered web applications & interactive UI
TypeScript
Strictly typed, robust, and maintainable software architecture
Node.js & Express
High-throughput asynchronous REST APIs & microservices
PostgreSQL
ACID-compliant relational database with complex schema design
Firebase
Real-time Firestore sync, authentication, and cloud messaging
Python & AI
Automated data workflows, scripts & AI API integrations
Tailwind CSS
Utility-first design engine for modern aesthetic interfaces
Docker & CI/CD
Isolated containerization and automated GitHub deployment
Figma
Design systems, rapid wireframing & responsive prototypes
GitHub
Code reviews, CI/CD automated test suites & branch tracking
REST & GraphQL
Declarative endpoints, caching, rate limiting & Swagger docs
A Transparent, Milestone-Driven Delivery Process
No guessing games or unexpected delays. We follow an agile, structured workflow so you have complete visibility from day one to launch.
Understanding & Scoping
We unpack your business objectives, target personas, edge cases, and technical requirements through collaborative discovery workshops.
Key Deliverables
UI/UX & Interactive Prototypes
We design every screen in Figma, creating design systems, intuitive user journeys, and clickable prototypes for team review and user validation.
Key Deliverables
Database & System Setup
Before writing frontend code, our senior architects model the database schemas, API contracts, security authentication, and cloud infrastructure.
Key Deliverables
Agile 2-Week Sprints
Iterative engineering sprints with demo recordings and staging link deployments every two weeks so you see constant, tangible progress.
Key Deliverables
Testing, Security & Optimization
Comprehensive stress testing, responsive device checks, unit tests, penetration analysis, and performance tuning for lightning speed.
Key Deliverables
Production Deployment & Care
Flawless release to App Store, Google Play, or custom cloud servers, followed by post-launch warranty, monitoring, and ongoing feature development.
Key Deliverables
Why Founders & Enterprises Partner With Us
We are not an average outsourcing shop. We operate as an extension of your core team, obsessing over quality, product value, and speed.
100% Intellectual Property Ownership
You retain full ownership of your source code, design assets, and database architecture from day one under a signed mutual NDA.
Direct Access to Senior Engineers
No non-technical middlemen or lost-in-translation account managers. You speak directly with the tech leads and developers executing your build.
Modern, Scalable Tech Stacks Only
We build with Flutter, Next.js, and TypeScript — modern technologies with vast ecosystems, avoiding legacy traps and unnecessary technical debt.
Transparent Bi-Weekly Sprints & Demos
Watch your product take shape sprint by sprint. Every two weeks, you receive live staging deployments, video walkthroughs, and backlog tracking.
Competitive Global Cost Advantage
Top 1% engineering talent based in Bangladesh delivering Silicon Valley standards at 50–70% lower operational overhead for your business.
Post-Launch Warranty & Care Included
We don't abandon you after launch. Every project includes a 30-day post-launch warranty for bug fixes, performance monitoring, and server stability.
ONION TECH Headquarters
Dhaka, Bangladesh · Serving Global Brands
Founded
0
Dhaka, Bangladesh
Engineering
Senior Only
Top tier developers
Client Trust
0%
Full IP ownership
Delivery
On-Time
Agile 2-week sprints
Passionate Engineers Building World-Class Digital Products
Founded in 2020, ONION TECH is an agile software development company dedicated to bridging the gap between ambitious business vision and high-performance technical execution.
Whether you are an early-stage startup looking to build a scalable cross-platform mobile MVP or an established enterprise needing to modernize legacy software, our engineering team brings the exact combination of architectural rigor and modern design aesthetics.
Engineering Excellence Over Shortcuts
We write clean, modular, and documented code that your in-house team can easily maintain or extend in the future.
Radical Transparency
No hidden charges, no vague timelines. You have real-time Jira/Trello boards and direct Slack communication with devs.
User & Business First
We evaluate every feature against business viability and customer delight, preventing scope creep and wasted budgets.
Trusted by Ambitious Founders Worldwide
Read firsthand accounts from startup founders and engineering leaders who rely on ONION TECH to deliver mission-critical software.
“ONION TECH engineered our cross-platform Flutter mobile application within 8 weeks. Their communication, milestone sprint demos, and code cleanliness were unmatched. We hit 50,000 active users with zero crash reports.”
Zubair Rahman
Founder & CEO, Connectify Global
“The Next.js analytics platform they built for our team replaced three cumbersome third-party software subscriptions. Page loads are instantaneous and our enterprise clients praise the sleek, dark-mode design.”
Sarah Jenkins
VP of Engineering, FluxBoard SaaS
“Having direct access to senior developers without layers of account managers made all the difference. They anticipated architectural edge cases and delivered on-budget and on-time.”
Tariqul Islam
Head of Digital Products, Nova FinTech
Everything You Need to Know
Have questions about how we work, code ownership, or engagement models? Here are the most common questions our clients ask.
Still have questions not listed here?
Our engineering managers are available to answer your specific technical questions.
Have an Ambitious Idea?
Let's Bring It to Life.
Whether you need an MVP ready in weeks or a full dedicated team for enterprise scale, ONION TECH delivers code that drives success.
Let's Build Your Next Breakthrough Product
Tell us about your project requirements, scope, or timeline. Our tech leads review your submission and reply with a structured estimate.
+880 1787-044199
WhatsAppClick to chat directly with our tech team
ebrahimnazmul20032@gmail.com
Detailed proposals & project inquiries
Dhaka, Bangladesh
Engineering Hub · Remote Global Deployments
Email our team directly and tell us a little about your project.