Available to hire
Hi, I’m Andrey Troitskiy, a versatile software engineer specializing in front-end and full-stack development with a strong focus on CRM/ERP systems. I enjoy turning complex requirements into clean, scalable interfaces and robust back-end services, leveraging Angular, RxJS, Node.js, and cloud-native architectures.
Over the past several years I’ve led cross-functional teams, built data-aggregation and visualization platforms, and integrated external APIs and services. I’m passionate about UX, performance, and helping businesses unlock insights from their data.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
English
Advanced
Work Experience
Full Stack Developer at Elinext
May 1, 2024 - PresentWorked on Cardetectiv, a European vehicle sale ads aggregator, improving application performance by 14% through data fetching, mapping, and rendering optimization. Expanded platform data sources by 40% with REST API and HTML parsing integrations. Redesigned data export functionality, reducing errors by 80%, and supported 5+ partner formats. Enhanced dashboards and user interfaces to cover 3 additional business use cases.
Full Stack Developer at EPAM Systems
April 30, 2024 - September 1, 2025Developed and maintained StaffingRadar, a data aggregation and visualization platform handling data from 200+ sources with real-time analytics. Achieved 70% performance improvement in key modules by optimizing APIs and creating dynamic components. Implemented UI/UX enhancements such as notice icons, filters, and dialogs. Designed a scalable data processing pipeline using Kafka and AWS Lambda. Introduced OpenAPI and Zod validations for better API consistency and reliability. Contributed to Zero Trust Network Access token integration to strengthen security compliance.
Frontend Developer at SkyBase.ru
March 31, 2022 - September 1, 2025Participated in CRM integration design with external platforms including IP telephony, Roistat, and Telegram. Optimized UI rendering and API performance by creating reusable components and reducing load times. Implemented an automated testing strategy achieving 60% code coverage on critical modules.
Full Stack Developer at Elinext
May 1, 2024 - PresentWorked on the Cardetectiv platform, an international aggregator of vehicle sale ads across Europe's major markets. Enhanced application performance by 14% through optimized data fetching, mapping, and rendering. Expanded platform coverage by 40% via integration of new data sources through REST APIs and HTML parsing. Revamped data export functionality, reducing errors by 80% and supporting more than five new partner formats. Redesigned and extended dashboards and user interfaces to support additional business use cases.
Full Stack Developer at EPAM Systems
April 30, 2024 - September 1, 2025Developed and maintained StaffingRadar, a data aggregation and visualization platform aggregating data from over 200 sources for real-time analytics. Achieved a 70% increase in performance of key application modules through API optimizations and dynamic components. Implemented UI/UX improvements boosting customer satisfaction. Designed and deployed a scalable data processing pipeline using Kafka and AWS Lambda. Introduced OpenAPI specifications and ZOD validation to enhance system reliability. Contributed to security compliance by integrating Zero Trust Network Access (ZTNA) tokens.
Frontend Developer at SkyBase.ru
March 31, 2022 - September 1, 2025Contributed to the design and implementation of CRM integrations with external platforms such as IP telephony, Roistat, and Telegram. Optimized UI rendering and API performance by introducing reusable components, significantly reducing load times. Established an automated testing strategy achieving 60% code coverage in critical modules.
Full Stack Developer at Elinext
May 1, 2024 - PresentWorked for Cardetectiv, an international aggregator of vehicle sale ads across Europe's major markets. Improved application performance by 14% in key usage scenarios by optimizing data fetching, mapping, and rendering processes. Expanded platform coverage by 40% through integration of new data sources (REST APIs & HTML parsing). Redesigned data export functionality, reducing export errors by 80% and enabling 5+ new partner formats. Redesigned and expanded dashboards and user interfaces, enabling support for 3 additional business use cases.
Full Stack Developer at EPAM Systems
April 1, 2024 - September 8, 2025Developed StaffingRadar, a data aggregation & visualization platform collecting data from 200+ sources, delivering real-time analytics for decision-making. Delivered a 70% acceleration in performance for key application modules by optimizing APIs and introducing dynamic components. Implemented UI/UX improvements including notice icons, advanced filters, and custom dialogs, increasing customer satisfaction. Designed and deployed a data processing pipeline using Kafka + AWS Lambda, improving scalability and system resilience. Introduced OpenAPI specifications and Zod validation, improving system reliability and API consistency. Contributed to Zero Trust Network Access (ZTNA) token integration, strengthening security compliance.
Frontend Developer at SkyBase.ru
March 1, 2022 - September 8, 2025Participated in design and implementation of CRM integrations with external platforms (IP telephony, Roistat, Telegram). Optimized UI rendering and API performance, introducing reusable components and reducing load time for core pages. Implemented automated testing strategy, achieving 60% code coverage across critical modules.
Frontend Developer at RSS School
December 31, 2021 - December 31, 2021Ranked 25th out of 5,800 students; served as team lead for a group of 5; contributed to UI/UX improvements and built a modern front-end with responsive design.
Middle Full Stack Developer at Staffing Radar
January 1, 2022 - January 1, 2022Developed Staffing Radar platform - a comprehensive data aggregation and visualization solution; integrated data from 200+ sources; built dashboards and data-visualization features. Stack: Angular, RxJS, Express, MongoDB, Kafka, AWS.
Middle Full Stack Developer at EPAM Systems
January 1, 2024 - January 1, 2024Led full-stack development across CRM/ERP projects; implemented front-end with Angular/TypeScript and back-end with Node.js/Express; improved data-fetching performance and built enterprise dashboards; mentored a team of 5.
Front-End Developer at Staffing Radar
January 1, 2025 - January 1, 2025Focused on UI/UX improvements and front-end performance; integrated new data sources and introduced a multi-source visualization platform for decision-making; collaborated with product and backend teams.
Education
Bachelor of Psychology at Ural State University
January 1, 2007 - January 1, 2009Frontend Developer at RS School
January 1, 2021 - January 1, 2021Associate Solutions Architect at RS School
January 1, 2022 - January 1, 2022Bachelor of Psychology at Ural State University
January 1, 2007 - January 1, 2009AWS Certification: Certified Solutions Architect at Amazon Web Services
January 1, 2023 - September 8, 2025RS School Associate Solutions Architect (Ranked 28/532) at RS School
January 1, 2022 - September 8, 2025RS School Frontend Developer (Ranked 25/5800) at RS School
January 1, 2021 - September 8, 2025Bachelor of Psychology at Ural State University
January 1, 2007 - January 1, 2009CRM Architect at Ural State University
January 1, 2007 - January 1, 2009CRM Architect at Ural State University
January 1, 2020 - January 1, 2021Qualifications
Certified Solutions Architect
January 1, 2023 - September 1, 2025Associate Solutions Architect
January 1, 2022 - September 1, 2025Frontend Developer
January 1, 2021 - September 1, 2025Certified Solutions Architect
January 1, 2023 - September 1, 2025Associate Solutions Architect
January 1, 2022 - September 1, 2025Frontend Developer Certification
January 1, 2021 - September 1, 2025AWS Certification: Certified Solutions Architect
January 1, 2023 - September 8, 2025RS School Associate Solutions Architect (Ranked 28/532)
January 1, 2022 - September 8, 2025RS School Frontend Developer (Ranked 25/5800)
January 1, 2021 - September 8, 2025Bachelor of Psychology
January 1, 2007 - January 1, 2009AWS Certification
January 1, 2023 - November 19, 2025Industry Experience
Software & Internet, Transportation & Logistics, Retail, Professional Services, Financial Services, Computers & Electronics, Media & Entertainment, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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