Alex Turdean
Verified Expert in Engineering
Back-end Developer
Amsterdam, Netherlands
Toptal member since October 15, 2020
Alex is an innovative technical leader with deep expertise in advanced algorithms, data structures, and distributed systems, with a gold medal in informatics. During the last few years, he worked with several tech startups as a senior engineer and led the development of a core project in an enterprise. Alex thrives in dynamic environments and always aims to exceed expectations.
Portfolio
Experience
- Algorithms - 7 years
- Node.js - 6 years
- JavaScript - 5 years
- PostgreSQL - 5 years
- Amazon Web Services (AWS) - 3 years
- TypeScript - 1 year
- GraphQL - 1 year
- Distributed Systems - 1 year
Availability
Preferred Environment
MacOS, GitHub, Slack, Atom, Linux, Windows
The most amazing...
...thing I've created is an end-to-end import system in Node.js that is fully scalable for a hot new note-taking app startup.
Work Experience
Tech Lead
PBS - Main
- Managed a diverse cross-functional team of four developers and two quality assurance specialists in creating REST and GraphQL APIs (150+ endpoints) while instilling a collaborative culture and fostering a high-performing team environment.
- Implemented and executed comprehensive training programs to enhance multi-disciplinary skills in programming and solutions architecture to optimize project outcomes.
- Designed and implemented an ABAC policy feature and dashboard that gave API administrators fine-grained control over-exposed API resources; conducted all requirement analysis, iterative architectural design, and stakeholder engagement.
- Collaborated with product owners to maintain a prioritized product backlog, achieve strategic objectives, and leverage customer experience.
- Championed continuous improvement and best practices to mitigate risks, minimize errors, and enhance quality in key operational processes.
Senior Back-end Engineer
Mem Labs
- Designed and implemented the GraphQL API for the mobile app and moved several Cloud Functions to the API.
- Designed and implemented a scalable, efficient, and reliable system using an asynchronous and choreographed architecture and obtained ownership of the import system.
- Integrated the API with Cloud Vision API to process images.
- Improved the performance of several endpoints and actively engaged in a sprint to improve p99 performance.
Cloud and AI Engineer
Lab7
- Developed the Google Cloud architecture and the neural network for SmartCover, a device that gives you analytical data about your posture.
- Used a Pub/Sub architecture for data transmission and Firebase for data storage.
- Developed a convolutional neural network that predicts eight different standing postures on the chair with a 95% accuracy using TensorFlow.
Back-end Engineer
Vara
- Migrated the server to Node.js from an architecture oriented on database functions.
- Performed an entire database migration to a PostgreSQL database.
- Designed the API from scratch and focused on performance as a key metric.
Back-end Engineer
ITS
- Developed a system that finds the right category for a scanned document based on user-added keywords. It was built using Node.js and Python.
- Designed the database and REST API for two web applications.
- Automated testing using SuperTest and designed a CI pipeline.
Back-end Engineer
Wellcode
- Developed a notification system based on a Pub/Sub architecture, using Perl (Mojolicious) with PostgreSQL.
- Implemented the admin dashboard using JavaScript and HTML.
- Created problems of algorithmic nature and wrote solutions for them in C++.
Experience
Panthera
Education
Bachelor's Degree in Computer Science (Polytechnic)
Technical University of Cluj-Napoca - Cluj-Napoca, Romaina
Skills
Libraries/APIs
Node.js, TensorFlow, React, Google Cloud Video API, REST APIs
Tools
GitHub, Atom, Slack
Languages
C++, C, JavaScript, TypeScript, GraphQL, Python, Java, Perl, C#, HTML
Platforms
Firebase, Amazon Web Services (AWS), AWS Lambda, Windows, Linux, MacOS, Heroku, Algolia
Storage
Google Cloud, PostgreSQL, Cloud Firestore, Redis, Amazon S3 (AWS S3), Databases, Elasticsearch
Industry Expertise
Teaching
Frameworks
Express.js, Hapi.js
Paradigms
REST, Functional Programming, Object-oriented Programming (OOP)
Other
Algorithms, Data Structures, APIs, Back-end, Distributed Systems, Google Cloud Functions, Amazon RDS, Serverless, Microcontrollers, Mathematics, Software, Software Architecture, Software Design, Artificial Intelligence (AI), Computer Vision, Cloud Tasks, Cloud Storage, Performance, Debugging
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