The Tools
We Trust
We build with modern, battle-tested technologies across every layer of the stack, chosen for performance, maintainability, and long-term reliability.
.NET Core
Backend
OpenAI
AI / ML
React
Frontend
PyTorch
AI / ML
TypeScript
Language
Anthropic
AI / ML
PostgreSQL
Database
TensorFlow
AI / ML
Python
AI / ML
AWS
Cloud
Hugging Face
AI / ML
GraphQL
API
LangChain
AI / ML
Docker
DevOps
scikit-learn
AI / ML
Redis
DevOps
Our technology stack
We use battle-tested, modern technologies to build scalable, maintainable, and performant systems.
.NET Core
Backend
OpenAI
AI/ML
React
Frontend
PyTorch
AI/ML
TypeScript
Language
Anthropic
AI/ML
PostgreSQL
Database
TensorFlow
AI/ML
Python
AI/ML
AWS
Cloud
Hugging Face
AI/ML
GraphQL
API
LangChain
AI/ML
Docker
DevOps
scikit-learn
AI/ML
Redis
DevOps
What We Use & Why
Every tool has a purpose. Here's what each technology brings to the table on a typical FirstCode.AI project.
Backend
.NET Core
High-performance, cross-platform framework for building scalable APIs, microservices, and enterprise-grade background services.
- REST & GraphQL API development
- Background jobs & event-driven architecture
- Microservice & monolith patterns
AI / ML
OpenAI
Industry-leading large language models powering intelligent features, from natural language understanding to code generation and multi-modal reasoning.
- GPT model integration & fine-tuning
- Embeddings for search & retrieval
- Function calling & structured outputs
Frontend
React
Component-driven UI library for building fast, interactive web applications with a mature ecosystem and a strong community.
- Single-page applications (SPA)
- Complex dashboard & admin UIs
- Component libraries & design systems
AI / ML
PyTorch
The leading open-source deep learning framework. Flexible, Pythonic, and the go-to choice for research and production ML workloads.
- Custom model training & fine-tuning
- GPU-accelerated inference
- Model export & deployment (TorchServe, ONNX)
Language
TypeScript
Strongly-typed superset of JavaScript that catches errors at compile time and scales cleanly across large, shared codebases.
- Type-safe frontend & backend code
- Shared types across the full stack
- Improved developer experience & safe refactoring
AI / ML
Anthropic
Safety-focused AI research lab behind the Claude family of models. Delivers highly capable, steerable, and reliable AI assistants.
- Claude API integration
- Long-context document analysis
- Agentic workflows & tool use
Database
PostgreSQL
The world's most advanced open-source relational database. Powerful, reliable, and production-proven at any scale.
- Relational & semi-structured (JSONB) data
- Full-text search & advanced indexing
- High-availability & streaming replication
AI / ML
TensorFlow
Google's end-to-end machine learning platform. Battle-tested for training, serving, and deploying models at massive scale.
- Production model serving (TF Serving)
- On-device ML (TensorFlow Lite)
- Scalable training pipelines
AI / ML
Python
The de-facto language for data science and AI, with the richest ecosystem of ML frameworks and LLM integration tooling.
- ML model training & inference
- LLM integrations & RAG pipelines
- Data processing, ETL & automation scripts
Cloud
AWS
The world's leading cloud platform. We use it to build scalable, resilient, and cost-optimised infrastructure for any workload.
- Auto-scaling compute (EC2, ECS, Fargate)
- Serverless functions (Lambda, API Gateway)
- Managed storage, databases & global CDN
AI / ML
Hugging Face
The open-source hub for state-of-the-art ML models. Provides thousands of pre-trained models and a powerful Transformers library.
- Pre-trained model fine-tuning
- NLP, vision & audio pipelines
- Model hosting & inference APIs
API
GraphQL
A flexible, strongly-typed query language for APIs that gives clients precise control over the data they request. Nothing more.
- Efficient, schema-driven data fetching
- Strongly-typed API contracts
- Real-time subscriptions & live data feeds
AI / ML
LangChain
The leading framework for building LLM-powered applications. Provides composable chains, agents, and retrieval-augmented generation out of the box.
- RAG pipeline orchestration
- Multi-step agent workflows
- Tool integration & memory management
DevOps
Docker
Industry-standard containerisation that ensures consistent, reproducible environments from local development all the way to production.
- Consistent dev-to-prod environments
- Container orchestration (ECS, Kubernetes)
- Streamlined CI/CD pipeline integration
AI / ML
scikit-learn
The gold standard for classical machine learning in Python. Simple, efficient, and built on NumPy and SciPy for reliable, reproducible results.
- Classification, regression & clustering
- Feature engineering & selection
- Model evaluation & hyperparameter tuning
DevOps
Redis
High-performance, in-memory data store used for caching, session management, and real-time pub/sub. Delivers sub-millisecond response times at scale.
- Application caching & session storage
- Real-time pub/sub messaging
- Rate limiting & queue management
Why This Stack?
Technology choices have long-term consequences. Here's the thinking behind ours.
Battle-Tested in Production
Every technology in our stack has proven itself under real-world load and scale. We don't chase trends. We choose tools we trust to deliver when it matters.
Modern & Actively Maintained
Our stack is backed by large communities and dedicated maintainers. That means regular security patches, new capabilities, and long-term investment you can rely on.
End-to-End Coverage
From the database layer to the user interface, our technologies cover every tier of the stack, giving your team one cohesive, well-integrated toolset.
Ready to start?
Tell us the problem. We reply within one business day.