Custom Application Development
for Indian Enterprises

Web apps, mobile applications, and enterprise software โ€” built with modern frameworks, delivered on time, maintained for the long term.

โœ“ Full-Stack Engineering Team ยท โœ“ React + Flutter + Node.js ยท โœ“ Agile Delivery ยท โœ“ Post-Launch Support
8 Service Areas Covered
Full-Stack Cross-Functional Team
React ยท Flutter Primary Development Frameworks
Cloud-Native Architecture on AWS & GCP

Application Development Services

Eight specialised practices, one integrated engineering team, modern tech stack throughout.

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Service 01

Web Application Development

We build custom web portals, SaaS platforms, and internal dashboards engineered for performance, security, and enterprise scale.

  • Multi-tenant SaaS platform architecture and development
  • Role-based access control (RBAC) and SSO integration
  • Real-time data dashboards with live WebSocket feeds
Learn More โ†’
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Service 02

Mobile App Development

We develop native-quality iOS and Android applications using React Native and Flutter, delivering a single codebase without compromising user experience.

  • Cross-platform development with React Native and Flutter
  • Native module integration for device hardware features
  • Offline-first architecture with local data sync
Learn More โ†’
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Service 03

Custom Software Development

We build bespoke ERP, CRM, and workflow automation systems tailored to your business processes โ€” no off-the-shelf compromises.

  • Custom ERP modules for finance, procurement, and production
  • Proprietary CRM with pipeline, contract, and communication management
  • Multi-step approval workflow and task automation engines
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Service 04

API & Systems Integration

We connect your software ecosystem with robust REST APIs, third-party connectors, and microservices that eliminate data silos and manual handoffs.

  • RESTful and GraphQL API design and development
  • Third-party SaaS connector development (Salesforce, SAP, Zoho, Tally)
  • Payment gateway integration (Razorpay, PayU, Stripe, CCAvenue)
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Service 05

UI/UX Design

We design intuitive, research-backed user interfaces and design systems that reduce friction, increase adoption, and reflect your brand accurately.

  • User research, interviews, and persona development
  • Information architecture and user flow mapping
  • Low and high-fidelity wireframing in Figma
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Service 06

DevOps & Cloud Deployment

We implement CI/CD pipelines, containerised deployments, and cloud infrastructure that make releasing software fast, safe, and repeatable.

  • CI/CD pipeline design and implementation (GitHub Actions, GitLab CI, Jenkins)
  • Docker containerisation and Kubernetes orchestration
  • Infrastructure as Code using Terraform and CloudFormation
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Service 07

QA & Software Testing

We provide end-to-end quality assurance covering manual exploratory testing, automated regression suites, performance benchmarking, and security vulnerability assessments.

  • Test strategy and test plan documentation
  • Manual exploratory and scenario-based testing
  • Automated regression testing with Playwright and Cypress
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Service 08

Maintenance & Support

We provide SLA-backed application maintenance, proactive monitoring, version upgrades, and 24/7 incident response to keep your software running without interruption.

  • SLA-backed response times (Critical: 1hr, High: 4hr, Medium: 24hr)
  • 24/7 uptime monitoring with automated alerting and escalation
  • Monthly dependency and security patch management
Learn More โ†’

Technologies We Work With

Proven, scalable frameworks chosen for long-term maintainability โ€” not trend-chasing.

Frontend
ReactNext.jsVue.jsFlutterReact Native
Backend
Node.jsPythonJava.NETGo
Cloud
AWSGoogle CloudAzureDigitalOcean
Database
PostgreSQLMongoDBMySQLRedis
DevOps
DockerKubernetesGitHub ActionsTerraformNginx

Our Development Process

A structured, collaborative process designed to reduce risk and keep you in control at every stage.

01
Discovery & Planning Translating business requirements into a technical blueprint and project scope.
02
UI/UX Design User-centered design with interactive prototypes validated before development.
03
Development Agile sprints with working demos at every milestone, full transparency.
04
QA & Testing Functional, regression, load, and security testing before any release.
05
Deployment & Support Production launch, documentation handover, and SLA-backed ongoing support.

How We Engage

Flexible engagement structures that adapt to your project stage, team size, and commercial preferences.

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Fixed Price Project

Well-defined scope, fixed timeline, fixed budget. Ideal for MVPs, clearly scoped features, and defined deliverables with minimal ambiguity.

Best for: MVPs, redesigns, defined feature builds Get a Quote โ†’
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Time & Materials

Flexible scope with hourly or sprint-based billing. Designed for evolving requirements, long-term product development, and iterative feature expansion.

Best for: Evolving products, long-term development partnerships Get a Quote โ†’
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Dedicated Team

A full-time extended team embedded in your processes, sprints, and communication channels. For enterprises needing ongoing development capacity without the overhead of hiring.

Best for: Large enterprises, sustained development capacity Get a Quote โ†’

Why Crewtec for Application Development

What sets our engineering practice apart from generic offshore vendors.

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Modern Tech Stack

We build with proven, scalable frameworks โ€” React, Next.js, Flutter, Node.js, Python. No legacy code, no obscure tech choices that create lock-in.

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Security Built-In

OWASP-aligned development practices, secure API design, dependency vulnerability scanning, and penetration testing before every production launch.

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Agile Delivery

Weekly sprints, working software demos, and transparent project management via Jira, Linear, or your preferred PM tool. You always know what's happening.

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India-Context Expertise

Deep familiarity with Indian payment gateways (Razorpay, PhonePe, UPI), regulatory compliance (RBI, SEBI, DPDPA), and regional language support.

Ready to build your next application?

Talk to our engineering team โ€” we'll scope your project and give you a delivery timeline within 48 hours.