Jacob Marsh Email & Phone Number

As a Senior Software Engineer at ScienceSoft, I develop of high-performance web and mobile applications, delivering innovative, scalable solutions for large enterprises across diverse sectors. My role involves managing full-stack projects from conception through deployment, with a focus on enhancing user experience, optimizing performance, and ensuring scalability.Key Contributions:- Built Cross-Platform Applications: Developed web and mobile editions for Chewy's CarePlus, using React, Next.js, Node.js, Spring Boot, GraphQL, PostgreSQL, and React Native, achieving a 4.5-star rating and seamless cross-platform functionality.- Boosted Development Efficiency: Spearheaded the development of Walmart's smart store management system using a microfrontend architecture with React and Vue.js, improving development speed by 48% and enhancing UX.- Optimized State Management: Transitioned from Redux to Jotai for independent microfrontend state management, reducing state errors by 40% and improving app responsiveness.- Designed Scalable APIs: Engineered RESTful and GraphQL API endpoints with Node.js and .NET, using Apollo and Hot Chocolate to cut response times by 40%.- Elevated Testing and Code Quality: Established a testing framework with Jest, JUnit, Cypress, and Playwright, achieving 80% code coverage and driving quality-focused development practices.In addition to my technical contributions, I also conduct code reviews, mentor junior developers, and foster cross-team collaboration to ensure smooth project workflows and continuous improvement. This role has allowed me to combine my passion for innovation with practical solutions that deliver measurable results.

At Spring Health, I contributed as a Software Engineer III, building high-impact, data-driven solutions to enhance mental health accessibility and improve user engagement. My work focused on front-end development and back-end integrations, utilizing modern frameworks and cloud technologies to support scalable, interactive applications.Key Contributions:- Enhanced User Engagement: Developed an interactive Mental Health Insights Dashboard using React, Redux, GraphQL, Node.js, and Azure, leading to a 40% increase in user engagement by delivering real-time insights and visualizations.- Optimized UI/UX: Created responsive, pixel-perfect UIs with React, Material UI, Figma, and D3.js, improving data visualization and enhancing the overall user experience.- Boosted Application Performance: Improved front-end performance by integrating Next.js for server-side rendering, resulting in a 32% reduction in page load times and better SEO rankings.- Streamlined Back-End Architecture: Transitioned legacy Go monolith systems to a modern microservices architecture using Node.js, Python, Ruby on Rails, Apache Kafka, and Docker, significantly improving scalability and operational efficiency.- Accelerated Release Cycles: Automated secure release pipelines with Azure DevOps and Key Vault, reducing release cycle times by 35% while maintaining compliance with HIPAA standards.In this role, I combined technical expertise with a user-centric approach, focusing on building seamless, scalable applications that meet the specific needs of mental health users. I also worked closely with cross-functional teams, ensuring alignment across development, product, and design, and contributing to a supportive, collaborative team culture.

As a Frontend Developer at ServiceNow, I took part in designing and optimizing user-centric applications, delivering high-quality front-end solutions that improved performance and user experience for a global user base. My focus was on building interactive, accessible applications while leveraging modern frameworks and frontend best practices.Key Contributions:- Enhanced User Engagement: Developed a chatbot with JavaScript, React, and Redux that included unique functionalities like YouTube integration, emoji support, and random response generation, engaging over 50,000 users.- Improved Performance and Reliability: Optimized chatbot performance, achieving a 70% reliability improvement through TestCafe validation, leading to a smoother user experience.- Accelerated Onboarding: Designed an onboarding system using Angular, ES6, HTML5, SCSS, Bootstrap, MySQL, and Ruby on Rails, reducing onboarding time by 34%.- Boosted Website Performance: Utilized code-splitting, lazy loading, and caching strategies, resulting in a 45% improvement in website performance.- Ensured Accessibility Compliance: Enhanced conversational workflows to comply with WCAG accessibility standards, leveraging HTML5 and ARIA tags to ensure inclusive user experiences.During my time at ServiceNow, I also conducted Level 2 diagnostics on ServiceNow platforms, troubleshooting complex issues for over 100,000 customers. This role allowed me to deepen my technical skills while contributing to meaningful improvements in both product functionality and user satisfaction.

Master'S Degree, Computer Science

Bachelor'S Degree, Computer Science