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I am a senior software engineer with 13+ years of experience building and scaling backend systems and APIs. I specialize in Ruby on Rails and Java, with hands-on experience in system design, security remediation, and production reliability. I’ve led end-to-end feature delivery, improved performance and stability, and driven production-quality improvements across teams. I enjoy mentoring, code reviews, and shaping scalable architectures.…I am a senior software engineer with 13+ years of experience building and scaling backend systems and APIs. I specialize in Ruby on Rails and Java, with hands-on experience in system design, security remediation, and production reliability. I’ve led end-to-end feature delivery, improved performance and stability, and driven production-quality improvements across teams. I enjoy mentoring, code reviews, and shaping scalable architectures.

Denys Soloshenko

Full Stack Developer, Back-End Developer, Web Developer, +2

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I am a senior software engineer with 13+ years of experience building and scaling backend systems and APIs. I specialize in Ruby on Rails and Java, with hands-on experience in system design, security remediation, and production reliability. I’ve led end-to-end feature delivery, improved performance and stability, and driven production-quality improvements across teams. I enjoy mentoring, code reviews, and shaping scalable architectures.…I am a senior software engineer with 13+ years of experience building and scaling backend systems and APIs. I specialize in Ruby on Rails and Java, with hands-on experience in system design, security remediation, and production reliability. I’ve led end-to-end feature delivery, improved performance and stability, and driven production-quality improvements across teams. I enjoy mentoring, code reviews, and shaping scalable architectures.

Available to hire

I am a senior software engineer with 13+ years of experience building and scaling backend systems and APIs. I specialize in Ruby on Rails and Java, with hands-on experience in system design, security remediation, and production reliability.

I’ve led end-to-end feature delivery, improved performance and stability, and driven production-quality improvements across teams. I enjoy mentoring, code reviews, and shaping scalable architectures.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Ukrainian

Advanced

Russian

Advanced

English

Fluent

Work Experience

Senior Software Engineer at Global Fleet Management (PosiTrace)

October 1, 2025 - May 1, 2026

Led a full security remediation initiative for a large-scale legacy Ruby on Rails application, eliminating all known backend vulnerabilities identified by security scans (e.g., dependency audits, Trivy). Designed and implemented KML import/export functionality for trip and reporting modules to improve data interoperability and enable external integrations. Enhanced reporting with advanced filtering, migrated legacy Backbone.js notifications to Angular, and built scalable RESTful APIs to support reporting and notification features. Implemented secure Slack integration via OAuth 2.0, including token management and real-time alert delivery. Owned features end-to-end from design through staging validation and production deployment, ensuring reliable delivery and improved system stability.

Senior Software Engineer at Cisco Systems

September 1, 2022 - February 1, 2025

Architected Vidcast integration into Webex Control Hub, resulting in a 30% increase in user engagement and streamlined enterprise video management. Established comprehensive observability with Grafana metrics and alerts, reducing incident response time. Designed and documented service APIs with extensive test coverage, improving integration reliability. Mentored junior engineers and contributed to technical documentation standards. Managed deployments via CI/CD pipelines (Bitbucket Pipelines).

Software Engineer at Cisco Systems

September 1, 2019 - September 1, 2022

Built scalable API connectors between Voicea's AI-generated transcripts and Cisco Contact Center; developed transcript debugging and QA tooling that boosted team productivity. Led CI/CD pipeline optimization (Jenkins), cutting deployment time, and contributed to platform scalability by building capacity planning tools for data processing services.

Full Stack Ruby Engineer at Voicea (Acquired by Cisco)

April 1, 2018 - September 1, 2019

Delivered secure and scalable RESTful APIs for audio transcription and AI analysis workflows; integrated Stripe to extend billing capabilities. Increased test coverage with RSpec and TDD practices, and improved authentication using Devise with enhanced OAuth2 support.

Lead Full Stack Ruby Engineer at WebGroup Limited Ltd.

April 1, 2014 - April 1, 2018

Led a development team to create high-performance browser extensions; designed and implemented RESTful API architecture enabling seamless third-party integrations; built an analytics dashboard providing actionable insights to stakeholders; championed Test-Driven Development practices across the organization.

Software Engineer at Ven Commerce Ltd

October 1, 2013 - April 1, 2014

Worked on Magento projects; developed, tested, and reviewed code for Drupal-based sites.

Software Engineer at Prime ADV

July 1, 2013 - October 1, 2013

Contributed to Drupal projects and Drupal development; supported Yii-based partner project for discount selling.

Web Engineer at BPT Conference Consulting

February 1, 2011 - March 1, 2013

Contributed to Magento/Drupal projects; performed code reviews and testing; supported web platform development.

Web Engineer at Pashkov House

March 1, 2010 - January 1, 2011

Web development and maintenance for multiple projects.