Engineering6 min read
Building Scalable APIs: Lessons from 150+ Integrations
API architecture patterns, authentication strategies, and performance optimizations from hundreds of third-party integrations.
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Trusted by 150+ companies worldwide
We build software that scales
50+ senior engineers with 10+ years average experience. From architecture to production — we deliver enterprise-grade software with startup velocity.
150+
Products Shipped
50+
Senior Engineers
99.9%
Uptime SLA
20+
Countries
Trusted across industries
Health-Tech
FinTech
Enterprise
SaaS
E-Commerce
Technology Stack
Built with industry-leading technologies
We leverage the best tools and platforms to deliver scalable, maintainable solutions
React
Frontend
Vue.js
Frontend
TypeScript
Language
Node.js
Backend
.NET
Backend
Python
Backend
AWS
Cloud
Microsoft Azure
Cloud
Google Cloud
Cloud
PostgreSQL
Database
Docker
DevOps
Flutter
Mobile
OpenAI
AI
Industries We Specialize In
🏥Health-Tech
💳FinTech
🛒E-Commerce
☁️SaaS
📚EdTech
🚚Logistics
🚀
150+
Products Shipped
🤝
90%
Client Retention
⭐
4.9/5
Client Rating
📈
10+
Years in Business
What We Build
Engineering that drives business outcomes
We solve complex technical challenges with battle-tested solutions. Every engagement is designed to deliver measurable ROI.
Not sure where to start?
Book a free strategy call. We'll assess your needs and recommend the right approach.
Why Companies Choose Us
Your engineering team, extended
Since 2015, we've helped 150+ companies ship products that matter. Not an outsourcing agency — a true engineering partner.
Engineering Excellence
Our team in Gurugram, India serves clients globally with enterprise-grade solutions.
50+
Engineers
10+
Avg. Years
20+
Countries
Senior-Only Teams
Every engineer has 8+ years experience. No juniors learning on your project. Direct access to decision-makers.
90%Client retention
Enterprise Security
HIPAA, PCI-DSS, GDPR, and SOC 2 compliant. Your data and IP protected by enterprise-grade protocols.
ZeroSecurity incidents
Startup Speed
48-hour onboarding. Two-week sprints. Daily communication. Enterprise quality without enterprise bureaucracy.
2xFaster delivery
“ARSTEG delivered our FinTech platform in 3 months with zero downtime. Their engineering precision reduced our operational cost by 40%.”
Managing Director
FinTech Venture, Singapore
“We needed to scale from 10K to 500K users. ARSTEG rebuilt our architecture and we haven't had a single performance issue since.”
CTO
Health-Tech Startup, USA
How We Work
From first call to production
A streamlined process designed to get your project moving fast — without sacrificing quality or communication.
01
Discovery Call
Day 130-minute strategy session to understand your goals, technical requirements, and timeline.
Clear project scope
02
Technical Assessment
Days 2-3Our architects review existing systems, identify opportunities, and design the optimal approach.
Architecture proposal
03
Team Assembly
Day 4-5We assign the right senior engineers based on your tech stack. Direct communication from day one.
Dedicated team ready
04
Agile Delivery
OngoingTwo-week sprints with daily standups, weekly demos, and transparent progress tracking.
Continuous delivery
05
Launch & Support
Post-launchProduction deployment, monitoring setup, and dedicated support with guaranteed response times.
99.9% uptime
Our commitment to you
Great partnerships are built on transparency and trust. Here's what you can expect working with ARSTEG.
Start Your Project48-hour onboarding
Direct senior access
No hidden fees
Flexible engagement
Full IP ownership
30-day guarantee
Client Stories
Trusted by teams worldwide
“ARSTEG delivered our FinTech platform in 3 months with zero downtime. Their engineering precision reduced our operational cost by 40%.”
Managing Director
FinTech Venture • Singapore
4.9/5
Client Rating
90%
Client Retention
150+
Projects Delivered
20+
Countries Served
Trusted by Industry Leaders
Join 150+ companies who trust ARSTEG for their software development needs.
Clutch
4.9
47 reviews
GoodFirms
4.8
32 reviews
Google
4.9
89 reviews
ISO 27001
Information Security
GDPR Compliant
Data Protection
SOC 2 Type II
Security Standards
TechCorp
FinanceHub
HealthPlus
RetailMax
DataFlow
CloudSync
TechCorp
FinanceHub
HealthPlus
RetailMax
DataFlow
CloudSync
Case Studies
150+ products shipped
From startups to Fortune 500 — we build software that drives real business results.
Health-Tech40+
FinTech35+
E-Commerce30+
Enterprise25+
SaaS20+
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Discuss Your ProjectInsights
Latest thinking
Perspectives on software development, engineering best practices, and industry trends.
FAQ
Frequently asked questions
Everything you need to know about working with us.
We can typically onboard a dedicated team within 48 hours of signing the agreement. For larger projects requiring specific expertise, we may need up to one week to assemble the ideal team composition.
Still have questions?
Contact our teamSchedule a Meeting
Book a Free Consultation
Let's discuss your project and explore how we can help you achieve your goals.
What to Expect
- 30-minute strategy session
- Discuss your project requirements
- Get expert recommendations
- No obligation consultation
Video Call
Google Meet or Zoom
30 min
Phone Call
Direct conversation
30 min
All times shown in your local timezone
Ready to Get Started?
Schedule a free 30-minute consultation to discuss your project requirements and get expert recommendations.
Prefer to reach out directly?
Get Started
Let's build something great
Tell us about your project and get a free quote within 24 hours.
Phone
Office
Gurugram, Haryana, India
Gurugram, Haryana
Why reach out?
- Free consultation & estimate
- Response within 24 hours
- No obligation or commitment
- NDA available upon request