
Nikolaos
From Greece (UTC+3)
9 years of commercial experience
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Nikolaos – Python, Django, Ruby
Nikolaos boasts over 8 years of experience designing and developing scalable systems, specializing in Python-based backend solutions. Skilled in creating robust data pipelines, integrating AI-powered features, and managing complex distributed systems, he has a proven ability to lead teams in developing microservices and optimizing performance for high-traffic environments. Experienced in working with cloud infrastructure (AWS) and machine learning integrations, with a passion for solving technical challenges in fast-paced, collaborative environments.
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Let’s get started today!Experience Highlights
Senior Software Engineer
Building new integrations for CRM systems, Enabling AI Analysis on CRM data
- Enabled 3 new chat integrations with CRM systems
- Enabled integrations with 4 telephony systems
- Integrating with External voice transcription and PII redaction systems
- Maintained company's monolith, fixing bugs and implementing new features
- Improved the existing data ingestion pipeline to make it more scalable and fault-tolerant
Senior Python Engineer
Building Integrations with delivery partners that provide delivery as a service to restaurants. Development of an algorithm that selects the best delivery partner to execute each order, taking into consideration the company's profit and customer's satisfaction.
- Redesigned back-end architecture
- Integrated new providers
- Developed a system to pick the best providers for each order
- Maintained the microservices and the big monolith
Back-end Engineer
RESTful API for an innovative Social Media mobile application.
- Created back-end architecture
- Lead a team of 3 BE Engineers
- Worked with Mobile Engineers to standardize API
- Implemented API with performance in mind
- Deployed service to AWS
- Wrote unit, integration and e2e tests
Software Engineer
Match records related to music copyrights from label companies and sources like Youtube and Spotify using Deep Learning.
- Created back-end architecture
- Implemented new features
- Scaled service to run for more customers
Software Engineer
Biggest marketplace and price-comparison engine in Greece.
- Worked on various internal projects as part of the Kernel Team (Core Product Department). Tasks mainly related to Backend Development using Ruby on Rails, MariaDB, Kafka and ElasticSearch
- Was in charge of scaling, performance, and reliability
- Made an identification of bottlenecks in the main application
- Detected and fixed problematic slow queries or parts of code
- Moved parts of code that hit external services or APIs to asynchronous task queues using Kafka.
- Applied security fixes
- Increased and monitored test suite coverage during the upgrade phase
- Integrated new features of the framework
- Was in charge of User Account Protection
- Refactored and improved existing authentication and authorization system
- Implemented features regarding users’ security and GDPR