Contact information

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You can get this candidate's contact information from https://www.work.ua/resumes/17558427/

Work experience

Senior Full Stack Developer

from 03.2020 to 12.2025 (5 years 10 months)
Databricks, Remote (IT)

•Built enterprise data and analytics platform features inspired by Lakehouse architecture: collaborated on Figma designs, developed responsive dashboards with React / Next.js, and created REST/GraphQL APIs using NestJS and Spring Boot, deployed via GitHub Actions CI/CD to AWS ECS with API Gateway.
•Migrated legacy PHP/Laravel analytics portal to a modern Next.js frontend and NestJS microservices, integrating PostgreSQL and Redis caching; implemented SSR to improve performance for large-scale data dashboards.
•Developed data quality and monitoring services using Django REST and FastAPI, with Celery workers for scheduled dataset validation and automated Slack alerts and PostgreSQL reporting dashboards.
•Refactored ingestion and processing systems into Spring Boot (Java) and NestJS microservices with Prisma ORM and PostgreSQL, enabling reliable data processing and integrations with payment/billing services via ASP.NET Core APIs.
•Implemented event-driven pipelines with RabbitMQ, including DLQ handling, retries, and MongoDB audit logs to ensure reliable processing of high-volume data events.
•Established modern DevOps infrastructure: Docker containerization, Kubernetes orchestration, Terraform IaC, GitHub Actions CI/CD, and blue/green deployments on AWS EKS.
•Built React Native mobile tools for operations teams with offline SQLite sync, DynamoDB background processing, and Elasticsearch search, enabling access to operational data in the field.
•Optimized performance across PostgreSQL/MySQL/Redis clusters using indexing, RDS read replicas, pgBouncer pooling, and background jobs.
•Implemented observability with Prometheus, Jaeger, Winston/Serilog logging, and standardized API practices across teams.

Full Stack Developer

from 09.2016 to 02.2020 (3 years 6 months)
Danish Software A/S, Other countries (IT)

•Developed and maintained Laravel and Symfony APIs for enterprise business platforms, supporting authentication, billing workflows, notifications, and operational reporting for multiple client systems.
•Implemented RabbitMQ background workers and Redis caching to handle high-volume data processing and improveperformance for frequently accessed API endpoints.
•Built internal React-based dashboards used by business teams to monitor project planning data and operational metrics from platforms such as TitanPlan-style planning systems.
•Developed reporting services using Node.js/NestJS and PostgreSQL, enabling large dataset exports, automated reports, and webhook integrations with external business tools.
•Created Django-based administration tools for operations teams to manage business data, moderation flags, and secure audit logging across enterprise applications.
•Containerized backend services using Docker and implemented GitLab CI/CD pipelines for automated testing, code quality checks, and deployment to production environments.
•Enabled preview environments for feature branches using Docker Compose to improve collaboration between developers, QA, and product stakeholders.
•Built internal partner portals and client dashboards using Vue/Nuxt and Symfony APIs with documented endpoints and standardized API responses.
•Developed Python and SQL migration utilities to support data synchronization and database transitions between MySQL and PostgreSQL systems used in client platforms.

Junior Developer

from 09.2014 to 08.2016 (2 years)
Morning Train, Other countries (IT)

•Developed frontend components and backend APIs for custom web platforms and digital services using React, JavaScript/TypeScript, and Node.js.
•Contributed to the Ammongas B2B operations platform, building features for document management and operational data handling used by multiple energy plants.
•Implemented backend services and database queries for municipal and corporate websites, including the Flyt til Varde relocation platform for Varde Municipality.
•Built and maintained CMS-based web solutions and integrations for Danish organizations, including community platforms such as Coding Pirates.

Education

IT University of Copenhagen

BSc in Software Development, Other countries
Higher, from 2011 to 2014 (3 years)

Additional education and certificates

No additional education or certificates.

Knowledge and skills

• JavaScript
• TypeScript
• Node.js
• React
• SQL
• MySQL
• PostgreSQL
• Docker
• MongoDB
• PHP
• Python
• Java
• C#
• Next.js
• Vue.js
• Angular
• React Native
• Flutter
• Django
• FastAPI
• Spring boot
• Laravel
• AWS
• Google Cloud Platform
• MS Azure
• Kubernetes
• Git
• GitHub
• ASP.NET
• Flask
• Symfony

Language proficiencies

• English — fluent
• Danish — fluent

Additional information

I'm actively seeking a remote job.
My salary expectation is $1500~$3000/month and I'm open to discussion.
I can start work immediately.
Telegram: @jonasarai