Building the Infrastructure Behind Tomorrow's Leading Companies
We architect and develop mission-critical backend systems, APIs, and databases that power enterprise growth. From startup to scale.
Engineered for Performance
Specialized expertise in the technologies that matter for enterprise-grade applications
API Architecture & Development
Design and build RESTful, GraphQL, and real-time APIs that serve millions of requests. Optimized for performance, security, and developer experience.
Software Architecture
Strategic system design from the ground up. Microservices, monoliths, serverless—we choose the right architecture for your business requirements and scale.
Database Engineering
PostgreSQL, MySQL, NoSQL design and optimization. We build data layers that handle growth without breaking. Query optimization, indexing strategies, and replication architecture.
Backend Development
Modern PHP and Node.js development with Laravel, Symfony, Express, and NestJS. Clean code, comprehensive testing, and deployment pipelines included.
System Integration
Connect your systems seamlessly. Third-party API integration, legacy system modernization, and data synchronization across platforms.
Technical Consulting
Architecture reviews, performance audits, security assessments. Get expert guidance on the technical decisions that will define your product's future.
Modern Tools, Proven Results
We work with the technologies that deliver enterprise reliability
Backend Languages
- PHP 8.x
- Node.js
- TypeScript
- JavaScript (ES6+)
Databases
- PostgreSQL
- MySQL / MariaDB
- MongoDB
- Redis
Frameworks
- Laravel
- Symfony
- Express.js
- NestJS
API & Integration
- REST Architecture
- GraphQL
- WebSockets
- gRPC
Infrastructure
- AWS / Cloud Services
- Docker & Containers
- Kubernetes
- CI/CD Pipelines
Networking
- TCP/IP Stack
- Load Balancing
- CDN Integration
- Network Security
Eternia Solutions LLC
We are a US-based software development firm specializing in enterprise backend systems and API development.
Since our founding, we've worked with companies across fintech, e-commerce, healthcare, and SaaS industries—building the invisible infrastructure that powers their growth. Our approach combines deep technical expertise with a focus on business outcomes.
We don't do surface-level implementations. Every system we build is architected for performance, security, and long-term maintainability. We're the team you bring in when quality can't be compromised.
Whether you're launching a new product, scaling an existing platform, or modernizing legacy systems, we bring 15+ years of hands-on experience solving complex backend challenges.