- Develop and maintain scalable and reliable backend systems for Al-powered RAG services. - Integrate Al algorithms into backend systems. - Developing backend and Ul features for a video analytics platform. - Research algorithms and solution.

- Work on authentication and authorization with OAuth and MaxxTrader trading system - Research algorithms and solution.

- Defined web core service for client company. - Work in Al startup remotely, focusing on scaling the backend system for the mobile app that have ML model running to 10k+ concurrent users. - Do load test, performance test, profiling API endpoints, apply concurrency, DB optimization, LB, Auto scale in backend and OCI cloud infra.

- Defined web core service for client company. - Work on Tiktok direct messaging safety (backend) with extreme high QPS, TPS. - Review source code. - Integrate and A/B test machine learning models into Tiktok direct message system - Research algorithms and solution, Deliver API features and deploy worldwide, monitor and scale. - Collaborate with ios/an- droid engineers in client side. Work with data scientist for data schema in big system.

- Data extraction, ETL, mining and analysis on business insights on PT-level data coming from different sources and services. - Batch processing and real time processing TB data. Improve data pipeline for PT-data

- Behavioural biometric authentication that utilize ML and Deep Authentication IAM. - Review source code - Work on rule engine algorithms and data collector for fraud detetion algorithms on time series consent user bel - Research algorithms and solution

- Defined Sitecore control and Web core service for client company. - Project 1: Work on Authentication system, SSO, Identification broker service for the Finnish Trust Network and mobile authentication for strong electronic identification services that serve 400k+ active users/day. Implement solutions for secure strong authentication proxy server and security services plugin for other clients. Handle ETL data warehouse batch jobs for analytics. Elisa network services serve 3 million users. - Project 2: Deliver data-intensive MVP product in IIoT. Integrate with various data sources ETL process. Rule engine algorithms for supply chain data. Build data pipeline with Spring Cloud Stream MQTT system and protocol buffer data w scalable service bus system, full text search feature and metric system. Pub-sub system async processing. - Research algorithms and solution

- Project 1: Work with book packaging automation machine control server and system visual- ization. Implement API and UI feature. Configure Linux server and complex Vagrant script. - Project 2: Maintaining and implement ecommerce new features. Work with data dump, data backup with MySQL/MariaDB.Work w Centos7 server and work with complex Vagrant script and virtualization. - Project 3: Deliver production cataloging system product that handle macros, shortcuts keystroke, long running async processing, full text search for Marc dataformat PostgreSQLDB - Review source code. - Research algorithms and solution.

- Technical consultants and implementation for web based application that integrate 3 different legacy software system using Node.js, web technologies such as optimized search, complex dataframe, history snapshot. - Discuss and receive tasks from clients. - Provide solutions and support other members to do their tasks. - Define migration software architecture and system - Provide design pattern. - Review source code

- Backend bug fixing in MongoDB data model, implement RestAPI feature. - Defined structure frontend template. - Deployment pipeline on AWS with Serverless architecture handling upload to AWS S3 blob file. - Research algorithms and solution