Alexandre Plavinski - Full-Stack Developer (freelance)

Q: Where is Alexandre based?

Alexandre is based in Tallinn, Estonia .

Q: What languages does Alexandre speak?

Alexandre speaks the following languages: German (Advanced), English (Advanced) .

Q: How many years of experience does Alexandre have?

Alexandre has at least 8 years of experience. During this time, Alexandre has worked in at least 6 different roles and for 6 different companies . The average length of individual experience is 1 year and 5 months . Note that Alexandre may not have shared all experience and actually has more experience.

Q: What is Alexandre's latest experience?

Alexandre's most recent position is Full-Stack Developer (freelance) at Value AG (ITSonix GmbH) .

Q: What companies has Alexandre worked for in recent years?

In recent years, Alexandre has worked for Value AG (ITSonix GmbH) , Union Investment AG (via Coptios GmbH) , Confidential , and Boubyan Takaful Insurance Company .

Q: Which industries is Alexandre most experienced in?

Alexandre is most experienced in industries like Banking and Finance , Information Technology (IT) , and Insurance .

Q: Which business areas is Alexandre most experienced in?

Alexandre is most experienced in business areas like Information Technology (IT) , Product Development , and Project Management .

Q: Which industries has Alexandre worked in recently?

Alexandre has recently worked in industries like Banking and Finance , Information Technology (IT) , and Insurance .

Q: Which business areas has Alexandre worked in recently?

Alexandre has recently worked in business areas like Information Technology (IT) and Product Development .

Recommended expert

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

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (4 years), Information Technology (3.5 years), and Insurance (1 year).

Banking and Finance

Information Technology

Insurance

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (8.5 years), Product Development (8.5 years), and Project Management (3.5 years).

Information Technology

Product Development

Project Management

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

Advanced

Profile

Created

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Alexandre based?

Alexandre is based in Tallinn, Estonia.

What languages does Alexandre speak?

Alexandre speaks the following languages: German (Advanced), English (Advanced).

How many years of experience does Alexandre have?

Alexandre has at least 8 years of experience. During this time, Alexandre has worked in at least 6 different roles and for 6 different companies. The average length of individual experience is 1 year and 5 months. Note that Alexandre may not have shared all experience and actually has more experience.

What roles would Alexandre be best suited for?

Based on recent experience, Alexandre would be well-suited for roles such as: Full-Stack Developer (freelance), Cloud Architect, Full-Stack Developer, DevOps Engineer (freelance), Team Lead, Lead Developer (freelance with own team).

What is Alexandre's latest experience?

Alexandre's most recent position is Full-Stack Developer (freelance) at Value AG (ITSonix GmbH).

What companies has Alexandre worked for in recent years?

In recent years, Alexandre has worked for Value AG (ITSonix GmbH), Union Investment AG (via Coptios GmbH), Confidential, and Boubyan Takaful Insurance Company.

Which industries is Alexandre most experienced in?

Alexandre is most experienced in industries like Banking and Finance, Information Technology (IT), and Insurance.

Which business areas is Alexandre most experienced in?

Alexandre is most experienced in business areas like Information Technology (IT), Product Development, and Project Management.

Which industries has Alexandre worked in recently?

Alexandre has recently worked in industries like Banking and Finance, Information Technology (IT), and Insurance.

Which business areas has Alexandre worked in recently?

Alexandre has recently worked in business areas like Information Technology (IT) and Product Development.

What is the availability of Alexandre?

Alexandre will be available from March 2026.

What is the rate of Alexandre?

Alexandre's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.