Expletech is a premium backend development studio creating reliable and scalable API systems.
Backend that handles billions of requests
Fragile backends limit your growth
Unoptimized queries, rigid monolithic codebases, and poor caching strategies create bottlenecks that crash your system under traffic spikes.
Fragile monolith
Unoptimized queries lock database tables, causing timeout crashes during traffic spikes
Rigid codebase structures make adding new APIs or features slow and error-prone
Lack of proper security auditing leaves databases open to breach risks
Lack of server caching forces redundant database hits, driving cloud costs high
Expletech scalable backend
PostgreSQL index optimization and connection pooling keep response times low
Modular microservices separation allows deploying features fast and independently
OWASP-compliant code audits with robust JWT/OAuth 2.0 protect user data
Redis caching layer handles repeated requests instantly, slashing server bills
Backend modules we engineer for you
We build secure, optimized APIs and solid data structures to support your application scale.
Database architecture
Normalizing data structures, creating indexes, and configuring connection pools on Postgres, MySQL, or Mongo.
Scalable APIs
Writing clean REST or GraphQL endpoints documented in OpenAPI/Swagger, built on NestJS/Node.js or Go.
Microservices layout
Dividing complex monolithic systems into decoupled microservices connected via RabbitMQ, Kafka, or gRPC.
Caching & queues
Integrating Redis caches to speed up reads and setting up BullMQ background queues for heavy tasks.
Enterprise security
Implementing OAuth 2.0, JWT token rotation, CORS validation, data encryption, and OWASP protections.
DevOps & cloud deploy
Docker container setups, Kubernetes orchestration, CI/CD pipelines, and AWS/GCP cloud deployments.
Steps to deploy scalable backend
A systematic engineering workflow from schema design to a monitored production environment.
Strategy & architecture schema
Auditing requirements, choosing databases, designing data schemas, and mapping out API specifications.
Data layer & ORM coding
Setting up databases, writing ORM migrations, configuring indexes, and writing core CRUD logic.
API & core business logic
Implementing business endpoints, setting up authorization layers, and testing validation rules.
DevOps pipelines & launch
Setting up Docker builds, writing CI/CD scripts, deploying to AWS, and configuring Live monitoring.
Backends built for load
Natively optimized backends keep server latency low and ensure high system reliability.
Backend rate card
Pricing depends on data complexity, number of microservices, and expected request volume.
Junior backend engineer
Basic API endpoints · database migrations · unit test coverage
Middle backend engineer
Database design · Node.js/Python API · cloud integration
Senior backend engineer
High-load architectures · security audits · performance profiling
Tech lead / architect
Microservices · infrastructure as code · database scaling
What determines your price
- Seniority level of selected backend engineers
- Engagement type (hourly rate vs. dedicated backend team)
- Complexity of the business logic & database schemas
- Requirements for security standards, encryption, and compliance
Stability SLA and clean codebases
We follow clean code standards and agree the terms of support in the contract.
99.9% uptime SLA
We set up auto-scaling rules and containerized clouds to keep servers stable under load.
SQL injection protection
We use parameterized queries and secure ORMs to block database injection attacks.
Lighthouse mobile API speeds
We optimize query execution and indexes to keep API response latency low.
Postman & Swagger coverage
Every backend project comes with live Swagger docs and Postman tests for easy team handoff.
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Common questions
Answers to questions we get before every project.
Need a reliable backend?
We'll build a scalable backend ready for billions of requests. Let's discuss your architecture today.