01/26/2026 updated
100 % available
Senior Software Engineer with Full-Stack Development and Blockchain Experience
Sofia, Bulgaria
Only remote
Bachelor's degree, Information TechnologyAbout me
I don't mind responsibility and taking ownership of everything that I become envolved in. I take pride in my work! I care deeply about sharing my knowledge as well as learning what I can from the people I work with. Big Linux and OpenSource fan!
Java (Programming Language)JavaScriptAndroid Software DevelopmentTest AutomationUnit TestingBusiness IntelligenceBig DataMobile Application DevelopmentSoftware as a ServiceSoftware QualityDatabasesContinuous IntegrationData WarehousingDevOpsDevelopment Testing
Backend Development
Node.js backend development with microservices architecture, Express framework, and database integration using PostgreSQL and TypeORM
Mobile Application Development
Android application development using Kotlin, Java, and modern frameworks including Retrofit, RxJava, and automated testing with JUnit
Blockchain Technology
Smart contract development and blockchain infrastructure design with focus on distributed systems and fault tolerance
Big Data Processing
SaaS big data processing solutions with Scala, connecting BI tools like Tableau with data warehouses including Postgres, Redshift, Snowflake and Hive
DevOps and Infrastructure
Docker containerization, Kubernetes orchestration, CI/CD pipeline setup with Jenkins and GitHub Actions
Database Management
PostgreSQL database design and optimization, MikroORM and Sequelize ORM frameworks
JavaScript Ecosystem
Full-stack JavaScript development including Vue.js frontend, Node.js backend, and TypeScript for type-safe development
Testing and Quality Assurance
Automated testing implementation with Jest, unit testing, integration testing, and code quality tools
Node.js backend development with microservices architecture, Express framework, and database integration using PostgreSQL and TypeORM
Mobile Application Development
Android application development using Kotlin, Java, and modern frameworks including Retrofit, RxJava, and automated testing with JUnit
Blockchain Technology
Smart contract development and blockchain infrastructure design with focus on distributed systems and fault tolerance
Big Data Processing
SaaS big data processing solutions with Scala, connecting BI tools like Tableau with data warehouses including Postgres, Redshift, Snowflake and Hive
DevOps and Infrastructure
Docker containerization, Kubernetes orchestration, CI/CD pipeline setup with Jenkins and GitHub Actions
Database Management
PostgreSQL database design and optimization, MikroORM and Sequelize ORM frameworks
JavaScript Ecosystem
Full-stack JavaScript development including Vue.js frontend, Node.js backend, and TypeScript for type-safe development
Testing and Quality Assurance
Automated testing implementation with Jest, unit testing, integration testing, and code quality tools
Experience
Professional experience10+ years
Freelancer since2018
Languages
BulgarianNative speakerEnglishFluent
Project history
Full-stack development in startup environment, NestJS microservices development with testing and documentation, Docker k8s setup, test infrastructure using GitHub Actions, interim team lead for 6 months
Development and support of SaaS big data processing solution, connecting BI tools with data warehouses, big data processing and aggregation automation, business query response optimization
Node.JS freelance backend projects for custom e-commerce sites, blockchain infrastructure and design, smart contracts development, backend work using Node.js with distributed systems specialization