Alexandre Plavinski

Full-Stack Developer (freelance)

Alexandre Plavinski
Tallinn, Estonia

Experience

Mar 2024 - Apr 2025
1 year 2 months

Full-Stack Developer (freelance)

Value AG (ITSonix GmbH)

  • Developed modular microservices and high-performance microfrontends
  • Refactored and optimized backend components
  • Orchestrated microservices and integrated third-party APIs
  • Implemented resilience strategies (retry, circuit breaker, fallback) for REST APIs and messaging
  • Built automated integration tests to safeguard interfaces and data flows
  • Applied Clean Architecture principles for decoupled software layers
  • Successful integration with multiple external systems
  • Noticeable backend performance improvements through architectural decoupling
  • Significant enhancement of service orchestration and data flow reliability
  • Developed reusable frontend components with Angular, RxJS, and NgRX
Jul 2022 - Sep 2024
2 years 3 months

Cloud Architect, Full-Stack Developer, DevOps Engineer (freelance)

Union Investment AG (via Coptios GmbH)

  • Designed a scalable Azure-based cloud architecture for critical banking applications
  • Implemented reusable Angular and Blazor components
  • Developed an Angular framework for shared UI and state/authentication logic
  • Built a centralized role-based access system using MSAL and Entra ID
  • Integrated legacy SOAP services and non-migrated systems into the new architecture
  • Set up CI/CD pipelines and automated IaC with Terraform & Terragrunt
  • Operated secure Azure components (AKS, KeyVault, App Services)
  • Delivered boilerplate architecture for future application migration
  • Enabled ~50% faster development via Angular framework
  • Auth/auth system fully documented and audit-proof
  • Multi-tenant CI/CD and infrastructure pipelines successfully launched
  • Several applications went live and were approved by functional departments
Aug 2021 - Jun 2022
11 months
United States

Team Lead, Lead Developer (freelance with own team)

Confidential

  • Designed the architecture and delivered a full end-to-end system (Embedded + Cloud + Mobile)
  • Developed HMI components (Qt/QML) and web/mobile UIs (Angular, Android, iOS)
  • Implemented bidirectional video communication with WebRTC and GStreamer
  • Built modular boilerplates for all system layers
  • Enabled cross-device CI/CD for Embedded, Mobile, and Cloud
  • Integrated ML for facial recognition
  • Delivered a fully functional MVP within 6 months
  • Established a modular foundation for scalable edge-based communication
  • Successfully integrated stable video communication and device orchestration
  • Served as a basis for commercial rollout
Apr 2020 - May 2021
1 year 2 months

Lead Developer (freelance)

Boubyan Takaful Insurance Company

  • Designed a robust API architecture for partner integration
  • Developed a secure, role-based REST API portal with OAuth2
  • Integrated with Oracle-based core systems
  • Connected a national health insurance API for automated claims lookup
  • Delivered a multi-tenant admin UI for configuration and access control
  • Provided comprehensive documentation and transition support
  • Productive rollout of API portal for external partners
  • Successfully integrated healthcare API into core infrastructure
  • Delivered admin interface and onboarding documentation
  • Empowered the internal team to expand the platform independently
Sep 2018 - Apr 2020
1 year 8 months

Head of Development, Software Architect

Teslasuit

  • Provided technical leadership and architectural ownership for embedded systems (full-body haptics, sensors, VR integration)
  • Drafted and maintained software specifications and established structured requirements management
  • Planned and managed development processes (Agile and V-model), including release and quality assurance
  • Coordinated a cross-functional team (firmware, hardware, UI/UX, app development)
  • Designed software interfaces between motion capture, haptic module, and companion applications
  • Developed scalable build and testing processes across firmware and system layers
  • Established a clean, standardized software development process in an R&D context
  • Delivered a fully functional MVP, expanded with multiple feature versions
  • Implemented requirements engineering and specification discipline
  • Modularized the software architecture to support future product lines and variants
Aug 2016 - Aug 2018
2 years 1 month

Lead Developer, Architect, Project Manager (freelance with team)

Warba Bank

  • Designed and led development of a fully automated banking system
  • Integrated complex self-service devices (cash, cards, document handling)
  • Developed REST/SOAP integration with the bank’s core system
  • Built a real-time remote advisory system with WebRTC
  • Implemented secure embedded middleware for device orchestration
  • Managed digital onboarding including biometric ID and signature verification
  • Led project planning, rollout, and training
  • Launched three operational pilot branches
  • Enabled fully staffless operations including real-time advisory
  • Delivered a scalable platform for next-gen branches across the GCC region

Summary

Cloud Architecture & Platform Design

Design and implementation of scalable Azure systems with a focus on security, modularity, and multi-tenancy.

I design and deliver scalable cloud and full-stack systems – with component-based UI architectures, testable REST APIs, clean layered backends, architectural ownership, DevOps automation, and production-ready Infrastructure as Code & CI/CD implementation.

Setup and operation of deployment pipelines using Terraform, Helm, Azure DevOps, and GitHub Actions.

My focus is on secure, multi-tenant API design and system integration, interface architecture using OAuth2, Entra ID, messaging patterns, SOAP integration, and cloud platforms, reusable components (frontend & API), automated deployments using Terraform and CI/CD, and the integration of existing systems.

I take an end-to-end architectural approach – from the frontend to near-production delivery – and integrate system components, streaming technologies, or machine learning solutions (ML.NET, Azure ML, Python) when needed.

Clear documentation, structured handover processes, developer onboarding, and support through to production deployment.

Skills

Expertise At A Glance

  • Cloud & Devops
  • Azure
  • Aws
  • Kubernetes
  • Terraform
  • Ci/cd
  • Keyvault
  • Cloud Storage
  • Ml Integration
  • Messaging
  • Architecture & Design
  • Cloud Architecture
  • Clean, Ddd, Event Driven
  • Sparx Enterprise Architect (Uml, Bpmn, Sysml)
  • Solid, Software Design Patterns
  • Full-stack Development
  • .Net Core
  • Angular
  • Blazor
  • Tailwind
  • Angular Material
  • Devexpress
  • Rest Api
  • Sql
  • Embedded/iot (Optional)
  • C++
  • Qt/qml
  • Yocto Linux
  • Webrtc
  • Gstreamer
  • Mqtt

Technical Competencies

  • Clouds: Microsoft Azure, Amazon Aws
  • Development Platforms: .Net, Embedded Linux, Android
  • Frameworks: .Net Core, Angular, Blazor, Qt
  • Interfaces & Protocols: Rest Api, Messaging, Mqtt, Grpc, Websockets, Signalr, Ble
  • Databases: Ms Sql, Oracle, Postgresql, Mongodb
  • Programming Languages: C#, C++, Typescript
  • Security: Azure Msal, Oauth2, Oidc, Active Directory (Entra Id), Keyvault, Resources
  • Multimedia: Webrtc (Embedded, Android, Ios), Gstreamer, Opencv
  • Monitoring: Opentelemetry, Appinsights, Grafana
  • Ci/cd: Kubernetes, Docker, Azure Devops, Github Actions
  • Ui/ux: Tailwind, Material, Devextreme (Angular, Blazor), Qml
  • Algorithms & Programming Techniques: Sorting, Graphs, Hashing, Sliding Window, Dynamic Programming, Backtracking, Recursive Solutions
  • Ml: Ai/ml Integration In Web/cloud Apps, Python For Data & Ml
  • Hardware: Nxp Mx8, Bluetooth Le, Stm32 (Hal)
  • Tools: Devexpress, Enterprise Architect, Docker, Entity Framework, Qt Creator, Jetbrains Tools, Visual Studio (Code)

Skill Matrix & Tech-radar

  • Software Architectures: Cloud Architectures (Aws, Azure), Software Architectures - Uml, Architecture Patterns (Clean, Ddd, Event), Software Design Patterns, Microservices, Microfrontends, Embedded And Mobile Development
  • Cloud Development: .Net, Angular (Up To 18, 19 Tested, Nx And Cli), Blazor, Python, Tailwind, Bootstrap, Material, Devextreme, Devexpress, Jest, Jasmine, Xunit, Playwright, Cypress, Ngrx, Rxjs, Rest Api, Mqtt, Rabbitmq, Grpc, Sql (Ms Sql, Oracle, Postgresql), Web Reporting, Frontend (Angular, Ngrx, Rxjs)
  • Devops, Iac: Azure Msal, Active Directory (Entra Id), Keyvault, Resources, Terragrunt, Terraform, Helm, Kubernetes (Azure Aks, Amazon Eks), Docker, Ci/cd (Azure Devops, Github Actions), Opentelemetry, Appinsights, Azure Monitor, Prometheus, Grafana
  • Ml & Data: Python For Data & Ml, Model Deployment (Ci/cd For Ml), Ai/ml Integration In Web/cloud Apps, Opencv / Image Processing
  • Embedded & Mobile: Yocto Linux, C++/qt/qml, Webrtc (Embedded, Android, Ios), Gstreamer
  • System Integration: Rabbitmq, Grpc, Soap
  • Testing & Quality Assurance

Languages

German
Advanced
English
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