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Work experience

Full stack developer

from 08.2023 to now (3 years)
Aries Liber, Remote (IT)

- Led development of backend services and microservice-based applications using Python, FastAPI, PostgreSQL, Redis, and Docker.
- Designed and implemented AI-powered workflows for document processing, classification, recommendation systems, and content analysis using modern LLM providers.
- Built asynchronous processing pipelines using RabbitMQ, Kafka, and Celery to support scalable background processing and workflow orchestration.
- Optimized PostgreSQL queries, indexing strategies, and Redis caching layers to improve API performance and reduce infrastructure costs.
- Developed internal administration platforms and monitoring dashboards using React and TypeScript.
- Integrated payment gateways, CRM platforms, email services, SMS providers, and external APIs with secure webhook processing and fault-tolerant retry mechanisms.
- Implemented CI/CD pipelines, automated testing, deployment automation, and infrastructure monitoring.
- Participated in architecture reviews and technical planning initiatives across multiple projects.
- Mentored engineers through code reviews and technical guidance.

Key Achievements:
- Reduced critical API response times by more than 40% through database optimization, caching improvements, and asynchronous processing.
- Improved platform reliability through centralized monitoring, structured logging, and fault-tolerant service communication patterns.
- Reduced AI processing costs through intelligent caching and inference optimization techniques.

Full stack developer

from 03.2019 to 08.2023 (4 years 6 months)
Emphasoft, Remote (IT)

- Developed enterprise SaaS applications and data-processing systems using FastAPI, Django, React, PostgreSQL, and Redis.
- Built AI/ML integration pipelines supporting NLP workflows, document analysis, automated classification, and business process automation.
- Implemented real-time functionality using WebSockets and Server-Sent Events (SSE).
- Designed event-driven systems using RabbitMQ and Kafka, including dead-letter queues, retry mechanisms, and transactional messaging patterns.
- Developed REST APIs with authentication, authorization, validation, and OpenAPI documentation.
- Optimized PostgreSQL databases for reporting and analytics-heavy workloads.
- Contributed to frontend development using React and TypeScript for operational and administration interfaces.
- Collaborated with cross-functional teams to deliver business-critical software solutions.

Key Achievements:
- Built a unified AI integration framework that reduced onboarding time for new AI providers by more than 60%.
- Improved database performance through indexing and query optimization, significantly reducing reporting execution times.
- Successfully delivered multiple enterprise software projects from architecture through production deployment.

Backend developer

from 06.2017 to 02.2019 (1 year 9 months)
Toolstrek, Remote (IT)

- Developed backend services and APIs using Django, Node.js, and PostgreSQL.
- Built reporting systems, data-processing tools, and business application modules.
- Assisted in migration of legacy applications into modular service-oriented architectures.
- Developed SQL procedures, reporting queries, and ETL processes.
- Collaborated with frontend teams to define API contracts and integrations.
- Participated in production support, troubleshooting, and performance optimization activities.

Key Achievements:
- Earned increased ownership responsibilities through consistent delivery quality and technical problem-solving.
- Contributed to modernization initiatives that improved maintainability and deployment efficiency.

Education

The Hong Kong University of Science and Technology

Computer Science & Applied Mathematcs, Other countries
Higher, from 2013 to 2017 (4 years)

Additional education and certificates

AI & LLM Application Development with Python — DeepLearning.AI

2024, 3 months

Knowledge and skills

• Python
• TypeScript
• JavaScript
• C#
• FastAPI
• Django
• NestJS
• Node.js
• React
• Next.js
• Tailwind CSS
• HTML
• CSS
• PostgreSQL
• MySQL
• MongoDB
• Redis
• AWS
• MS Azure
• Docker
• Docker Compose
• GitHub Actions
• CI/CD
• Linux system administration
• Nginx
• RabbitMQ
• Apache Kafka
• AI integration
• GitHub
• Jira
• Confluence
• SASS

Language proficiencies

English — advanced

Additional information

Senior Full-Stack Engineer with 9+ years of experience designing and delivering scalable SaaS, fintech, CRM, and AI-powered platforms. Specialized in Python, FastAPI, TypeScript, React, and cloud-native distributed systems. Proven track record of building high-performance APIs, event-driven architectures, AI/LLM integrations, and large-scale data-processing pipelines.

Experienced in leading technical initiatives, mentoring engineers, driving architecture decisions, and delivering reliable software from concept through production deployment. Strong background in microservices, asynchronous systems, cloud infrastructure, observability, and performance optimization.

Ready to work with EU/US time zones.
Available to start immediately.

Telegram: @D_corepro
GitHub: https://github.com/brightcorepro122-arch