Andrei-Bogdan (Bogdan) Popescu
Senior FullStack Engineer
Experience
Senior FullStack Engineer
Aspora
- Designed and implemented scalable microservices in Go, ensuring high availability and fault tolerance.
- Built and optimized gRPC and REST APIs, improving system performance by 35%.
- Integrated Kafka for event-driven communication, enabling reliable message processing across distributed services.
- Enhanced PostgreSQL and Redis performance through schema redesign, caching, and query optimization.
- Implemented TypeScript and GraphQL for flexible and efficient data interaction between frontend and backend services.
- Automated deployments with Docker and Kubernetes, reducing downtime during releases by 40%.
- Mentored junior engineers, conducted code reviews, and enforced best practices in Go and Python.
Senior FullStack Developer
SoftKraft
- Migrated backend systems to Go-based microservices, improving scalability and reducing latency by 30%.
- Implemented real-time event systems using Kafka and WebSockets to handle high-frequency data.
- Built monitoring dashboards with Prometheus and Grafana, ensuring early detection of production issues.
- Deployed and maintained CI/CD pipelines, ensuring automated testing and smooth production rollouts.
- Automated deployments with Kubernetes and CI/CD pipelines, increasing delivery speed by 50%.
- Applied Redis caching to reduce latency and accelerate API response times by 35%.
Software Developer
XVision
- Developed backend services with Go and Python, integrated with frontends via REST APIs.
- Improved backend reliability by introducing Redis caching and asynchronous workers.
- Supported full SDLC, including requirements gathering, system design, implementation, and production support.
- Integrated secure payment processing systems and third-party APIs, improving transaction reliability.
- Reduced backend load by 20% with Redis caching and SQL query optimization.
- Improved API security using OAuth2/JWT-based authentication for protected endpoints.
- Collaborated with cross-functional teams to enhance productivity and lower defect rates by 10%.
- Contributed to compliance efforts for medical data security, ensuring regulatory alignment.
Industries Experience
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Experienced in Information Technology (7.5 years) and Healthcare (5 years).
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 (12.5 years), Product Development (7.5 years), and Quality Assurance (5 years).
Summary
Senior Golang Engineer with 11+ years of experience designing and developing scalable systems in Go, Python and TypeScript. Strong expertise in microservices architecture, REST/gRPC, and concurrency patterns, combined with hands-on experience in PostgreSQL, Redis, and Kafka. Skilled in Docker, Kubernetes, and CI/CD pipelines for reliable deployments. Adept at code quality, mentoring, and end-to-end feature ownership. Passionate about building secure, high-performance systems in fast-paced environments.
Skills
Backend Languages: Go (Golang), Python, Java
Frameworks & Protocols: Gin, Grpc, Rest Apis, Graphql
Concurrency: Goroutines, Channels, Context, Mutexes
Databases: Postgresql, Mysql, Redis
Messaging/streaming: Kafka, Rabbitmq, Nats
Frontend: React.js, Redux, Next.js, Typescript, Javascript (Es6+), Angular, Vue.js, Material Ui, Tailwindcss, Bootstrap, Html5, Css3, Sass/less, Responsive Design, Pwa Development, Service Workers
Architecture & Infrastructure: Microservices, Domain-driven Design (Ddd), Event-driven Systems
Containers: Docker, Kubernetes
Ci/cd: Gitlab Ci/cd, Github Actions, Jenkins
Monitoring & Logging: Prometheus, Grafana, Elk Stack, Sentry
Database: Mysql, Postgresql, Mongodb, Redis, Aws Rds, Dynamodb, Cloudsql (Gcp), Elasticsearch/opensearch, Cassandra
Testing & Tools: Jest, Cypress, Junit, Mockito, Postman, Swagger, Openapi, Selenium, Jasmine, Cucumber, Tdd, Bdd, Testify, Gomock
Cloud Services: Aws (Ec2, Lambda, Api Gateway, S3, Rds, Dynamodb, Ecs, Eks, Sns, Sqs), Gcp (Gke, Pub/sub, Cloudsql), Azure Devops, Firebase, Netlify, Vercel, Heroku, Terraform, Ansible
Devops & Ci/cd: Docker, Kubernetes, Helm, Jenkins, Gitlab Ci/cd, Github Actions, Bitbucket Pipelines, Argocd, Circleci, Bamboo, Prometheus, Grafana, Elk Stack
Other: Agile/scrum, Jira, Confluence, Git, Swagger, Openapi, Design Patterns, System Architecture, Performance Optimization, Accessibility (Wcag), Seo Best Practices
Problem Solving: Advanced Debugging, Optimization And Performance Tuning Skills
Collaboration: Cross-functional Team Player With Global Remote Experience
Leadership: Mentoring, Code Reviews, And Project Ownership
Communication: Strong Ability To Explain Complex Solutions To Business Stakeholders
Adaptability: Fast Learner, Able To Adopt New Frameworks And Tools Quickly
Time Management: Skilled At Prioritizing Tasks And Delivering Under Pressure
Client Relations: Dedicated To Building High-quality, User-focused Applications
Languages
Education
Ovidius University of Constanța
Bachelor of Computer Science · Computer Science · Constanța, Romania
Profile
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