§ Deshi.tech — Software Engineering

We engineer the systems the world travels on.

Enterprise-grade software and travel technology — OTAs, booking engines, and airline & GDS integrations — engineered in Bangladesh for businesses worldwide.

Index — Capabilities

  • 01Enterprise Software
  • 02Travel Technology
  • 03Platforms & Applications
  • 04Cloud & Growth

Built on the infrastructure enterprises already trust

  • AWS
  • Google Cloud
  • Kubernetes
  • PostgreSQL
  • Kafka
  • Next.js
  • React
  • Terraform
01 — Capabilities

What we engineer.

Four disciplines, one standard. From mission-critical enterprise cores to the booking engines that move millions of travellers.

01

Enterprise Software Development

Mission-critical systems engineered for scale, reliability, and long horizons — the software your operations depend on.

  • Enterprise Web Applications
  • Internal Platforms
  • Systems Integration
  • Cloud Architecture
02

Travel Technology

Deep domain expertise in the systems that move the world — OTAs, booking engines, and airline & GDS integrations.

  • OTA Development
  • Airline API Integration
  • Booking Engines
  • Reservation Systems
03

Platforms & Applications

Native-grade mobile and web applications, plus AI capabilities integrated where they compound real value.

  • Mobile Applications
  • AI Integration
  • B2B / B2C Portals
  • API Platforms
04

Cloud & Growth

Cloud architecture, observability, and digital marketing systems that keep products fast, resilient, and found.

  • Cloud Architecture
  • DevOps & CI/CD
  • Digital Marketing
  • Analytics
02 — Flagship domain

Travel technology, engineered end-to-end.

Four-plus years inside the systems that move the world. We unify airline, GDS, XML, and REST suppliers behind one resilient aggregation layer — and build the booking engines on top of it.

fig.01 — supplier aggregationtopology
GDSNDCXMLRESTDESHIAGGREGATIONB2BB2CMOBILE
CapabilityRef
OTA Development
End-to-end online travel agency platforms — search, book, pay, manage.
OTA
XML / SOAP APIs
Robust integrations with legacy supplier and GDS XML endpoints.
XML
Airline API Integration
Direct NDC, GDS, and consolidator connectivity for live fares.
AIR
REST API Integration
Modern supplier aggregation with resilient, typed contracts.
REST
Hotel Booking Systems
Multi-supplier hotel inventory, rate rules, and reservations.
HTL
Bus Reservation Systems
Seat maps, routing, and real-time availability at scale.
BUS
B2B / B2C Engines
White-label agent portals and consumer booking front-ends.
B2B
Payments & Settlement
Multi-currency gateways, fraud checks, and reconciliation.
PAY

Reference architecture

  • L0Interfaceweb · mobile · api
  • L1Servicesdomain · orchestration
  • L2Datapostgres · kafka · redis
  • L3Infrastructurekubernetes · cloud
03 — Enterprise software

Systems your operations can depend on.

The software that runs your business shouldn't be fragile. We architect enterprise platforms for reliability, scale, and a long horizon — then stay accountable for how they run in production.

01

Built for scale from day one

Event-driven services, horizontal scaling, and data models that hold up at three orders of magnitude of growth.

02

Observable by default

Metrics, tracing, and SLOs wired in from the first commit — because you can't operate what you can't see.

03

Modernization without the rewrite risk

We decompose legacy monoliths incrementally behind a strangler pattern, shipping value the whole way.

04 — Selected work

Systems in production.

A sample of what we've engineered. Real platforms, real load, measured in outcomes — not screenshots.

01
Travel TechnologyGlobal OTA Platform

A booking engine serving live fares across 40+ suppliers

We architected a supplier-agnostic aggregation layer unifying airline XML, GDS, and REST inventory behind a single typed contract — cutting search latency while scaling to millions of daily queries.

  • Node
  • PostgreSQL
  • Redis
  • Kubernetes
Integrated suppliers
40+
Median search
320ms
Uptime
99.98%
02
Enterprise SoftwareEnterprise Logistics Group

Replacing a legacy core with an event-driven platform

A multi-year modernization: we decomposed a monolith into an event-driven services platform with full observability, enabling the business to ship features weekly instead of quarterly.

  • Go
  • Kafka
  • AWS
  • Terraform
Deploy frequency
12×
Incident rate
-64%
In production
4yrs
03
Mobile & AIRegional Travel Retailer

A cross-platform app with AI-assisted trip planning

A native-grade mobile experience with an AI itinerary assistant grounded in live inventory — turning browsing sessions into completed bookings with a measurable lift in conversion.

  • React Native
  • Claude
  • GraphQL
Conversion
+38%
Store rating
4.8★
Platforms, one core
2
05 — Engineering in action

Engineering in Action

Real code. Real integrations. The systems behind airlines, hotels, booking engines and enterprise platforms.

We specialize in the complex integrations most teams avoid — normalizing supplier XML, wiring airline and GDS APIs, and settling payments — behind clean, typed contracts your product can build on.

  • REST APIs
  • XML APIs
  • OTA Platforms
  • Airline Integrations
  • Hotel Integrations
  • Bus Platforms
  • Payment Gateways
  • Enterprise Systems
airline/search.ts
TypeScript
1// Search live fares across integrated carriers
2const flights = await airline.searchFlights({
3  origin: "DAC",
4  destination: "DXB",
5  departureDate: "2026-08-12",
6  passengers: 2,
7});
8
9// Unify every supplier behind one typed contract
10const normalized = normalizeAirlineResponse(flights);
06 — System architecture

Anatomy of a travel platform.

Behind a single booking sits a distributed system — suppliers, gateways, engines, and workers, engineered to stay fast and correct under load. Hover any service to trace how it connects.

platform.topology13 services · operational
  • REST
    Airline APIs
  • XML / SOAP
    Hotel XML Suppliers
  • REST
    Bus APIs
  • PCI-DSS
    Payment Gateway
  • EDGE
    API Gateway
  • OAuth 2.0
    Authentication
  • CORE
    Booking Engine
  • ASYNC
    Queue Workers
  • EVENTS
    Notifications
  • WEB
    Admin Dashboard
  • B2B
    Agent Portal
  • iOS · Android
    Mobile Apps
  • OLAP
    Analytics
SuppliersEdgeCore servicesClients
07 — How we engineer

A discipline, not a scramble.

The same rigor on every engagement: understand deeply, build in increments, harden against reality, and stay for the long horizon.

  1. 01

    Discover & Architect

    We map the domain, constraints, and edge cases before a line is written — then commit to an architecture built to outlast the roadmap.

  2. 02

    Engineer in Increments

    Small, verifiable increments behind CI. Every change is typed, tested, and observable from the first commit.

  3. 03

    Integrate & Harden

    We wire the real suppliers, real payments, and real load — and harden against the failure modes that only appear in production.

  4. 04

    Operate & Evolve

    We stay accountable for what we ship: monitoring, SLOs, and a partnership that compounds over years, not sprints.

08 — Technology

A stack chosen for the long run.

Boring, proven technology where it counts; modern tooling where it compounds. Every choice optimizes for the decade, not the demo.

Languages
TypeScriptGoPythonKotlinSwift
Frontend
ReactNext.jsReact NativeTailwind
Backend
NodeNestJSgRPCGraphQLREST
Data
PostgreSQLRedisKafkaClickHouseElasticsearch
Cloud
AWSGCPKubernetesTerraformDocker
AI
ClaudeVector DBsRAGModel Routing
09 — Why Deshi.tech

The difference is the engineering.

We're not a website company, not freelancers, and not selling templates. We build serious software — and the way we work shows it.

Homegrown · World-class

01

Engineering, not decoration

We build systems that move money, seats, and inventory. Reliability is the product — not an afterthought bolted on at the end.

02

Domain depth in travel tech

Four-plus years inside airline APIs, GDS, and booking engines. This is specialist, hard-won knowledge — not generic development.

03

Homegrown craft, global standard

World-class engineering, engineered in Bangladesh, trusted by businesses worldwide. Craft is our national export.

04

Accountable for outcomes

We measure ourselves in uptime, latency, and shipped value — and we stay for the long horizon, not just the launch.

10 — In their words

Trusted by teams who ship.

The clearest signal of serious software: clients who stay for years.

“Deshi.tech operate like a senior product team, not a vendor. They understood our GDS constraints better than we did and shipped an integration that simply doesn't break.”
VP, Engineering — Global OTA Platform
“The architecture they proposed has held up for four years and three orders of magnitude of growth. That is the definition of serious software.”
CTO — Enterprise Logistics Group
“Precise, calm, and relentless about quality. Our booking conversion moved the moment their platform went live.”
Head of Product — Regional Travel Retailer
11 — FAQ

Questions, answered.

Straight answers on how we work, where we're based, and what we build.

  • We partner with businesses that depend on serious software — travel and OTA companies, enterprises modernizing legacy cores, and product teams that need booking, reservation, or integration platforms built to last.

12 — Start here

Let's engineer something serious.

Tell us what you're building. We'll bring the architecture, the domain depth, and four-plus years of shipping systems that hold up.

Start a projecthello@deshi.tech

Response within one business day · Dhaka, BD (GMT+6)