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

v3.11.6

Core backend language with type hints, async/await support

Using latest Python features: pattern matching, exception groups, performance improvements

Django 4.2 LTS

v4.2.7

Web framework with batteries included

Django REST Framework, Django Channels, Django Tenants, Celery integration

FastAPI

v0.104.1

High-performance async API endpoints

OpenAPI documentation, Pydantic validation, OAuth2 with JWT tokens

PostgreSQL 15

v15.4

Primary relational database

JSONB, full-text search, row-level security, partitioning, logical replication

Redis 7

v7.2.3

Caching, session storage, pub/sub

Redis Streams, Redis Search, Redis JSON, Redis TimeSeries

RabbitMQ

v3.12.8

Message broker for async processing

AMQP, MQTT, STOMP protocols, clustering, federation

🎨

Frontend & UI

Modern reactive UI with server-side rendering

React 18

v18.2.0

Component-based UI library

Concurrent features, Suspense, Server Components, automatic batching

Next.js 14

v14.1.0

Full-stack React framework

App Router, Server Actions, Partial Prerendering, Image Optimization

TypeScript 5

v5.3.3

Type-safe JavaScript

Strict mode, decorators, satisfies operator, const type parameters

Tailwind CSS 3

v3.4.0

Utility-first CSS framework

JIT compiler, custom plugins, responsive design, dark mode

Redux Toolkit

v2.0.1

State management

RTK Query, Immer, Redux DevTools, TypeScript support

D3.js & Chart.js

v7.8.5 & 4.4.1

Data visualization

Interactive charts, real-time updates, custom visualizations

🧠

AI & Machine Learning

State-of-the-art ML models and NLP processing

TensorFlow 2.15

v2.15.0

Deep learning framework

TensorFlow Serving, TensorFlow Lite, TensorFlow.js, TPU support

PyTorch 2.1

v2.1.2

Research and production ML

TorchScript, Distributed training, ONNX export, Mobile deployment

Transformers

v4.36.2

State-of-the-art NLP

BERT, GPT, RoBERTa, multilingual models, fine-tuning pipeline

spaCy 3.7

v3.7.2

Industrial NLP

Named entity recognition, dependency parsing, 24 language models

scikit-learn

v1.3.2

Classical ML algorithms

Classification, regression, clustering, dimensionality reduction

OpenCV 4.9

v4.9.0

Computer vision

Document scanning, face detection, OCR preprocessing

🚀

Infrastructure & DevOps

Cloud-native container orchestration

Docker

v24.0.7

Containerization platform

Multi-stage builds, BuildKit, Docker Compose, Swarm mode

Kubernetes

v1.29.0

Container orchestration

Helm charts, Horizontal Pod Autoscaler, Service Mesh (Istio)

Terraform

v1.6.6

Infrastructure as Code

Multi-cloud provisioning, state management, modules, workspaces

GitHub Actions

vLatest

CI/CD pipeline

Matrix builds, secret management, artifact storage, deployment

Nginx

v1.25.3

Web server & reverse proxy

Load balancing, SSL termination, rate limiting, caching

AWS/GCP/Azure

vMulti-cloud

Cloud platforms

EC2/GCE, S3/GCS, RDS/Cloud SQL, Lambda/Cloud Functions

📈

Monitoring & Observability

Complete observability stack

Prometheus

v2.48.1

Metrics collection

PromQL, AlertManager, Service discovery, Remote storage

Grafana

v10.2.3

Metrics visualization

Custom dashboards, Alerting, Plugins, Loki integration

Elasticsearch

v8.11.3

Search and analytics

Full-text search, Aggregations, Machine learning, Security

Kibana

v8.11.3

Log analysis

Discover, Visualize, Dashboard, Canvas, Maps

Sentry

vSaaS

Error tracking

Real-time alerts, Performance monitoring, Release tracking

Datadog

vSaaS

APM & Infrastructure

Distributed tracing, Synthetic monitoring, RUM, Logs

🛡️

Security & Compliance

Enterprise-grade security infrastructure

HashiCorp Vault

v1.15.4

Secrets management

Dynamic secrets, Encryption as a service, PKI, SSH certificates

Keycloak

v23.0.3

Identity and access management

SSO, SAML 2.0, OAuth 2.0, OpenID Connect, LDAP integration

OWASP ZAP

v2.14.0

Security testing

Automated scanning, API testing, CI/CD integration

ClamAV

v1.2.1

Antivirus scanning

File upload scanning, Real-time protection, Signature updates

ModSecurity

v3.0.11

Web application firewall

OWASP Core Rule Set, Custom rules, Real-time protection

Fail2ban

v1.0.2

Intrusion 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