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Our Tech Stack

Deep expertise across the full modern stack

Our engineers work across web, mobile, cloud, DevOps, AI, networking, and more — with the depth to build production systems, not just prototypes. If you don't see a technology listed, ask us.

Active capability
AI Engineering & Agent Implementation Live in production

We build production AI agents and enterprise integrations — not prototypes. Embedded inside your organization, delivered in months, owned by you.

AI Platforms & Models
AWS Bedrock
Our primary platform for enterprise AI agent implementation. We build autonomous agents, RAG systems, and enterprise chatbots on Bedrock's managed foundation models.
OpenAI / GPT-4
We integrate OpenAI's models into enterprise applications — from intelligent assistants to automated workflows and document processing.
Azure OpenAI
Enterprise-grade OpenAI models deployed within Azure's secure infrastructure — ideal for clients with Microsoft-first environments.
Google Vertex AI
Google Cloud's managed AI platform for building, deploying, and scaling models with native GCP integration.
Anthropic Claude
Long-context, safety-focused AI models for complex document analysis, enterprise reasoning, and nuanced language tasks.
Hugging Face
Open-source model hub for fine-tuning and deploying custom models — used when client data requires bespoke training.
Agent Frameworks & Tooling
LangChainLangGraphAutoGenCrewAILlamaIndexSemantic KernelPineconeWeaviatepgvectorElasticsearchMLflowPython · FastAPI
Core capability
Web Application Technologies
Backend Frameworks
.NET / ASP.NET Core
Microsoft's high-performance framework for building enterprise-grade web APIs and applications. Extensively used across multiple active client engagements.
Spring Boot
A powerful Java-based framework for building high-performance, easily maintainable microservices and web applications at scale.
Django
A full-stack Python web framework enabling rapid, clean development. We build efficient, secure, and scalable web applications across industries.
Node.js / Express
High-performance JavaScript runtime for building fast, scalable APIs and real-time applications with a non-blocking I/O model.
FastAPI
High-performance Python API framework — our go-to for AI backends, data pipelines, and modern microservice architectures.
Laravel
A PHP framework with elegant syntax and powerful tooling. We leverage its modular architecture to deliver robust, maintainable web applications.
Play Framework
A lightweight, stateless web framework built on Akka — ideal for highly scalable, reactive applications with predictable resource consumption.
Frontend Frameworks
React / Next.js
Our primary frontend framework for building fast, interactive, and SEO-friendly web applications with server-side rendering and modern component architecture.
Angular
A versatile, open-source framework for building dynamic, responsive enterprise applications with rich functionality and seamless user experiences.
Vue.js
A lightweight, progressive JavaScript framework delivering high-quality reactive interfaces. We use Vue's flexibility and modularity for modern web applications.
Languages
JavaPythonJavaScriptTypeScriptC#C / C++PHPGoRustScalaKotlin
Cross-platform & native
Mobile Technologies
Flutter
Our preferred cross-platform framework — build natively compiled iOS and Android apps from a single codebase, with expressive UI and high performance.
React Native
Cross-platform mobile development leveraging React's component model — ideal for teams with existing React web expertise.
Android (Kotlin / Java)
Native Android development with extensive experience building feature-rich, scalable applications using the latest Android tools and best practices.
iOS (Swift / Objective-C)
Native iOS development in Swift and Objective-C — delivering high-performance, visually polished applications for iPhone and iPad.
Infrastructure
Cloud Technologies
AWS
Our primary cloud platform. We design, deploy, and manage scalable, secure cloud solutions — including Bedrock for AI workloads, EC2, Lambda, S3, RDS, and more.
Microsoft Azure
Full Azure expertise including Azure OpenAI, App Services, Azure DevOps, and enterprise integrations with Microsoft 365 and Active Directory.
Google Cloud Platform
GCP infrastructure, Vertex AI, BigQuery, and Cloud Run — we leverage Google Cloud's data and ML capabilities for analytics-heavy and AI-first architectures.
Multi-Cloud Architecture
We design cloud-agnostic architectures that avoid vendor lock-in — giving clients flexibility to scale across AWS, Azure, and GCP as needs evolve.
Automation & delivery
DevOps Technologies
Containers & Orchestration
Docker
Containerization for consistent, portable environments across development, testing, and production — integrated with CI/CD pipelines for rapid delivery.
Kubernetes (K8s)
We deploy and manage Kubernetes clusters for efficient container orchestration, auto-scaling, and fault-tolerant infrastructure for mission-critical applications.
Terraform
Infrastructure as Code for automated, repeatable provisioning across cloud platforms — ensuring consistency, version control, and rapid environment setup.
Messaging & Event Streaming
Apache Kafka
High-throughput distributed event streaming for building event-driven architectures and real-time data pipelines at scale.
RabbitMQ
Reliable, feature-rich message broker for asynchronous service communication and decoupled microservice architectures.
CI/CD & Pipeline Tooling
HarnessGitHub ActionsJenkinsAWS CodePipeline · CodeBuild · CodeDeployAzure DevOps (Repos · Pipelines · Artifacts)Google Cloud Build · Cloud Deploy
Monitoring & Infrastructure
DatadogPrometheus & GrafanaAnsibleHelmArgoCD
Data layer
Database Engines
SQL / Relational
PostgreSQLMySQLMariaDBMS SQL ServerAmazon RDSAzure SQL
NoSQL
MongoDBDynamoDBCassandraRedisNeptuneDB (Graph)ElasticsearchFirebase
Vector Databases — AI
PineconeWeaviatepgvectorQdrantChroma
Infrastructure monitoring
Networking & Network Management

Built from hands-on production experience with large enterprise networking clients — managing, monitoring, and automating complex network environments at scale.

Zabbix
Open-source enterprise monitoring platform. Our teams have hands-on experience migrating to and operating Zabbix for large-scale network infrastructure monitoring.
Network Configuration Management
We build and operate NCM systems for managing, versioning, and auditing device configurations across large and distributed network environments.
Wi-Fi & Access Point Provisioning
Tooling for automated provisioning and management of wireless access points and switch ports at scale — built from real production experience.
Network Topology & Alerting
We build systems that continuously analyze alerts, logs, and network topology to surface issues and support automated remediation workflows.
Distributed ledger
Blockchain Technologies
Hyperledger
Enterprise-grade blockchain frameworks — Hyperledger Fabric and Sawtooth — for permissioned, scalable, and secure blockchain solutions tailored to industry-specific use cases. Our primary area of blockchain delivery experience.
Quality engineering
QA & Test Automation
SeleniumCypressPlaywrightJestJUnitPyTestPostmank6 (Load Testing)SonarQubeTestRailAI-assisted test generation
Don't see your technology?
We're continuously expanding our expertise. Reach out — we'll tell you honestly whether we can help and how.
Included at no cost
A dedicated Project Manager from day one
Every C3S client gets a dedicated PM at no extra charge — your single point of contact for communication, updates, and day-to-day coordination. You always know where things stand.
Our confidence guarantee
Not happy? Walk away in weeks — not months
We don't lock you into long contracts. If we're not delivering to your standard, terminate with just a few weeks of notice. No penalties. We offer this because we back our work completely.