Maxim Grishchenko
Lead Oracle Developer at Netcracker
Russia
Summary
👤
Senior🎓
Top SchoolMaxim Grishchenko is a Lead Oracle Developer with over 15 years of hands-on experience designing, tuning and migrating high-volume Oracle databases for Tier-1 telecom OSS/BSS platforms. He specializes in complex SQL/PLSQL development, data modeling and performance troubleshooting, and has led large-scale ETL and data reconciliation projects for operators such as TELUS, Sprint and SingTel. Comfortable across legacy ecosystems (Amdocs, MetaSolv, SAP, CBOSS) and custom ETL engines, he blends deep technical expertise with practical data-mapping and cleansing strategies that reduce migration risk. Known for solving bottlenecks in production ETL pipelines, he pairs a meticulous, can-do approach with strong analytical instincts. Based in Russia and grounded in an electrical and electronics engineering background, he brings systems-level thinking to database architecture and telecom data challenges.
9 years of coding experience
9 years of employment as a software developer
Engineer's degree (Dipl.-Ing.), Electrical and Electronics Engineering, Engineer's degree (Dipl.-Ing.), Electrical and Electronics Engineering at Novosibirsk State Technical University (NSTU)Oracle University
English, Russian, German
Github Skills (57)
ccpa10
keystore10
restful-api10
key-management10
storage10
payment-gateway10
psd10
data-protection10
token-exchange10
open-banking10
java10
security10
data-storage10
file-storage10
file-sharing10
Programming languages (5)
Github contributions (5)
max402/secure-token-service
Jan 2022 - Apr 2024
Secure Token Service. Java implementation of OAuth 2.0 Token Exchange IETF draft
Contributions:50 PRs, 98 pushes, 81 branches in 2 years 3 months
secureexchangeoauth-2tokenauthentication
max402/release
Feb 2024 - Dec 2025
Contributions:1 release, 8 PRs, 97 pushes in 1 year 10 months
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