Technology Stack
Enterprise-grade technology stack powering the most advanced recruitment platform in Europe. Built for scale, security, and performance.
Backend Architecture
Microservices architecture with domain-driven design
Python 3.11
v3.11.6Core backend language with type hints, async/await support
Using latest Python features: pattern matching, exception groups, performance improvements
Django 4.2 LTS
v4.2.7Web framework with batteries included
Django REST Framework, Django Channels, Django Tenants, Celery integration
FastAPI
v0.104.1High-performance async API endpoints
OpenAPI documentation, Pydantic validation, OAuth2 with JWT tokens
PostgreSQL 15
v15.4Primary relational database
JSONB, full-text search, row-level security, partitioning, logical replication
Redis 7
v7.2.3Caching, session storage, pub/sub
Redis Streams, Redis Search, Redis JSON, Redis TimeSeries
RabbitMQ
v3.12.8Message broker for async processing
AMQP, MQTT, STOMP protocols, clustering, federation
Frontend & UI
Modern reactive UI with server-side rendering
React 18
v18.2.0Component-based UI library
Concurrent features, Suspense, Server Components, automatic batching
Next.js 14
v14.1.0Full-stack React framework
App Router, Server Actions, Partial Prerendering, Image Optimization
TypeScript 5
v5.3.3Type-safe JavaScript
Strict mode, decorators, satisfies operator, const type parameters
Tailwind CSS 3
v3.4.0Utility-first CSS framework
JIT compiler, custom plugins, responsive design, dark mode
Redux Toolkit
v2.0.1State management
RTK Query, Immer, Redux DevTools, TypeScript support
D3.js & Chart.js
v7.8.5 & 4.4.1Data visualization
Interactive charts, real-time updates, custom visualizations
AI & Machine Learning
State-of-the-art ML models and NLP processing
TensorFlow 2.15
v2.15.0Deep learning framework
TensorFlow Serving, TensorFlow Lite, TensorFlow.js, TPU support
PyTorch 2.1
v2.1.2Research and production ML
TorchScript, Distributed training, ONNX export, Mobile deployment
Transformers
v4.36.2State-of-the-art NLP
BERT, GPT, RoBERTa, multilingual models, fine-tuning pipeline
spaCy 3.7
v3.7.2Industrial NLP
Named entity recognition, dependency parsing, 24 language models
scikit-learn
v1.3.2Classical ML algorithms
Classification, regression, clustering, dimensionality reduction
OpenCV 4.9
v4.9.0Computer vision
Document scanning, face detection, OCR preprocessing
Infrastructure & DevOps
Cloud-native container orchestration
Docker
v24.0.7Containerization platform
Multi-stage builds, BuildKit, Docker Compose, Swarm mode
Kubernetes
v1.29.0Container orchestration
Helm charts, Horizontal Pod Autoscaler, Service Mesh (Istio)
Terraform
v1.6.6Infrastructure as Code
Multi-cloud provisioning, state management, modules, workspaces
GitHub Actions
vLatestCI/CD pipeline
Matrix builds, secret management, artifact storage, deployment
Nginx
v1.25.3Web server & reverse proxy
Load balancing, SSL termination, rate limiting, caching
AWS/GCP/Azure
vMulti-cloudCloud platforms
EC2/GCE, S3/GCS, RDS/Cloud SQL, Lambda/Cloud Functions
Monitoring & Observability
Complete observability stack
Prometheus
v2.48.1Metrics collection
PromQL, AlertManager, Service discovery, Remote storage
Grafana
v10.2.3Metrics visualization
Custom dashboards, Alerting, Plugins, Loki integration
Elasticsearch
v8.11.3Search and analytics
Full-text search, Aggregations, Machine learning, Security
Kibana
v8.11.3Log analysis
Discover, Visualize, Dashboard, Canvas, Maps
Sentry
vSaaSError tracking
Real-time alerts, Performance monitoring, Release tracking
Datadog
vSaaSAPM & Infrastructure
Distributed tracing, Synthetic monitoring, RUM, Logs
Security & Compliance
Enterprise-grade security infrastructure
HashiCorp Vault
v1.15.4Secrets management
Dynamic secrets, Encryption as a service, PKI, SSH certificates
Keycloak
v23.0.3Identity and access management
SSO, SAML 2.0, OAuth 2.0, OpenID Connect, LDAP integration
OWASP ZAP
v2.14.0Security testing
Automated scanning, API testing, CI/CD integration
ClamAV
v1.2.1Antivirus scanning
File upload scanning, Real-time protection, Signature updates
ModSecurity
v3.0.11Web application firewall
OWASP Core Rule Set, Custom rules, Real-time protection
Fail2ban
v1.0.2Intrusion prevention
Log monitoring, IP banning, Custom filters, Actions
Performance Metrics
API Performance
- • P50 latency: 45ms
- • P95 latency: 120ms
- • P99 latency: 250ms
- • Throughput: 10K req/s
Database Performance
- • Query time: under 10ms
- • Connection pool: 200
- • Cache hit rate: 95%
- • Replication lag: under 1s
Infrastructure
- • Uptime: 99.99%
- • Auto-scaling: 2-100 pods
- • CDN: 150+ PoPs
- • Backup: 3-2-1 strategy