Led the core product refactoring to enhance product stability and international standards compliance. Went beyond responsibilities to learn accounting basics from scratch, and became a key knowledge keeper and leader in the team.- Reduced the number of urgent support requests from clients from 4 to 0 monthly.- Reduced loading time by 10x for reports with 100k+ rows for 100 companies in e-commerce.- Managed migration of 15k reports for 8k companies from API version 1 to version 2.- Consulted with 2 accountants to reduce conflicts between API version 1 and version 2 and increased the number of correct reports from 80% to 99%.- Resolved 2 fundamental and 3 minor logical issues for 300 companies: the double-entry principle and rounding.

Built and empowered a team of 5 full-stack engineers and QA professionals, fostering autonomy and independence in their performance.- Achieved a 20% increase in timely submissions by leading development to boost customer engagement in submitting required documents for Fiscal Year closing. Implemented transparent processes for clarity and action.- In 6 months, I made everything work without me: fostered leadership skills, autonomy, accountability, and facilitated professional development. - 1 developer advanced to the Engineering Manager position, showcasing my mentorship.- Managed tech debt and removed feature development blocker in 2 weeks by creating a dedicated service module and establishing infrastructure.

Independently developed software for one of the top 5 banks in Russia. In 1 year, became a team leader of 4.- Developed a web module for customers’ data processing, utilised by 20,000 employees in 200 company branches. This allowed customers to sign documents without visiting a branch.- Reduced time for production errors investigation by 50% via implementing a clear error messaging interface.- Conducted 50+ technical interviews for level evaluation of Software Engineering position candidates.- Saved 4,5 working hours monthly for 7 developers by building a sandbox environment.

- Was responsible for creating web apps for students and tutors.- Created a UI-kit which boost the development process by 30%- Established the Code Review process for the team which reduced tasks misunderstanding and code quality- Created a simple Continuous Deployment process for consistent deployment.

- Created marketing web applications that won several industry awards.