Senior Software Engineer - AI-Powered SaaS Expert

JIMMY LIANG

1-409-***-**** • *****.*********@*******.*** • Senior Software Engineer • Apt 7C, New York, NY 10003 Summary:

Senior Full Stack Engineer with 10+ years in building AI-powered, mobile-first SaaS platforms using C# (.NET), Python, Java, React, Vue, Svelte, and TypeScript. Expert in integrating real-time data and generative AI technologies (ML.NET, ONNX, OpenAI) within cloud environments (Azure, AWS). Skilled in Agile methodologies, DevOps (CI/CD, Docker, Kubernetes), and event-driven architecture

(Kafka, RabbitMQ). Proven track record in enhancing user engagement and delivering insights-driven solutions in fast-paced, collaborative startup settings. Skills:

Frontend

React.js, Vue.js, Svelte, TypeScript, JavaScript, Angular, Redux, Redux Toolkit, TailwindCSS, Bootstrap, jQuery, Storybook, SvelteKit, HTML, CSS Backend

C#, .NET Core (6/7), ASP.NET MVC, ASP.NET Core, Java, Spring Boot, Python, Flask, Node.js, Express.js, NestJS, WebSockets, SignalR

Databases

SQL Server, PostgreSQL, MongoDB, Redis, Cosmos DB, RDS Cloud & DevOps

Azure (AKS, Cosmos DB, Azure DevOps), AWS (ECS, EC2, RDS, S3, CloudWatch), Docker, Kubernetes, Terraform, Helm, GitHub Actions, Jenkins, GitLab CI/CD, TeamCity Testing & Automation

Jest, xUnit, Cypress, Selenium, SpecFlow, Postman, Snyk, OpenTelemetry, Prometheus, Grafana AI/Automation Tools

ML.NET, ONNX Runtime, OpenAI API, scikit-learn, NumPy, pandas, Celery, n8n, Zapier, Make.com Other Tools

Git, GitHub, GitLab, Jira, Vite, Webpack, ELK Stack (Elasticsearch, Logstash, Kibana), Oracle Financials, SAP, NetSuite, Workday, TDD, BDD, Agile/Scrum Professional Experience:

Senior Software Engineer

Kiggla

Dec 2023 – Current

• Pioneered the development of mobile-first, AI-driven SaaS platforms, enhancing brand engagement by 30% using C# (.NET 6/7), React, and Azure.

• Orchestrated real-time data processing pipelines with Kafka and RabbitMQ, boosting insight generation speed by 40%.

• Deployed generative AI models in production environments with ML.NET and OpenAI, facilitating dynamic consumer insights and personalization.

• Designed microservices infrastructure on Azure with Terraform, achieving 99.99% uptime and seamless scalability.

• Spearheaded Agile practices and cross-team collaboration, improving release cycles by 50% and fostering a startup-like innovation culture.

• Advanced CI/CD pipelines using GitHub Actions and Jenkins, reducing deployment times by 54% with automated build and test processes.

• Delivered comprehensive mentoring and training programs, increasing team efficiency and reducing onboarding time by 52%.

• Enhanced PHI compliance with secure coding practices and integrated monitoring using OpenTelemetry and Grafana.

Engineering Director

Lombard International

Mar 2020 – Oct 2023

• Directed the transformation of research platforms using AI and real-time data, improving decision-making for global brands by 40%.

• Implemented cloud-native solutions on AWS and Azure, ensuring high availability and security compliance across platforms.

• Developed sophisticated multi-region microservices with Kubernetes, Docker, and Helm, enhancing system reliability and scalability.

• Integrated AI models for sentiment analysis and data classification, leveraging ONNX and Azure Cognitive Services to increase insights accuracy.

• Led Agile methodology adoption, fostering a collaborative engineering culture and accelerating product development cycles by 50%.

• Optimized CI/CD workflows, incorporating Snyk and blue-green deployments, reducing time-to-market and increasing delivery confidence.

• Facilitated event-driven architecture with Apache Kafka and RabbitMQ, supporting real-time data processing and alerting.

• Achieved over 92% automated test coverage, embedding TDD/BDD practices for robust, low-regression software releases.

Senior Software Engineer

Lombard International

Mar 2017 – Mar 2020

• Redesigned legacy platforms into distributed, AI-enhanced SaaS solutions, supporting large-scale data analytics for brands.

• Engineered high-performance APIs with ASP.NET Core, enhancing data-driven workflows and secure access controls.

• Optimized SQL Server and MongoDB operations, reducing latency by 33% and improving data retrieval efficiency.

• Integrated real-time notification systems using SignalR and Redis, providing immediate user feedback and engagement analytics.

• Streamlined CI/CD processes with Kubernetes and Helm, achieving zero-downtime releases and cutting deployment times by 52%.

• Deployed ML models for video analytics and sentiment classification, leveraging Python pipelines for enhanced data processing.

• Supported global ad testing with region-aware analytics and multilingual capabilities, expanding market reach and cultural alignment.

Software Developer

Lombard International

Jun 2016 – Mar 2017

• Developed modular micro-frontends with React and Tailwind CSS, enhancing UI/UX and cross-team collaboration by 32%.

• Architected robust APIs with ASP.NET Core and Express.js, supporting critical financial workflows and integration with enterprise systems.

• Created advanced data visualization dashboards with D3.js and Highcharts, enabling real-time KPI tracking and decision support.

• Integrated with major ERP solutions via REST APIs, enhancing data flow resilience and compliance with OAuth2 and SAML.

• Enhanced frontend performance through code optimization and modern build tools, reducing load times by 42%.

• Established automated CI/CD pipelines with Terraform and Docker, achieving zero-downtime releases and high system reliability.

• Contributed to agile development processes, supporting design reviews and service refactoring for Fortune 500 clients.

.NET Developer

Sportsnexa

Sep 2015 – Mar 2016

• Developed scalable web applications with ASP.NET MVC and Entity Framework, ensuring robust architecture and modular code.

• Created dynamic, responsive UIs with JavaScript and Bootstrap, visualizing real-time sports analytics data.

• Built RESTful APIs for seamless data integration, enhancing web service interactions and real-time updates.

• Designed efficient backend services with LINQ and ASP.NET Web API, supporting secure and performant data access.

• Automated data ingestion and transformation for analytics using SQL Server, optimizing database performance.

• Implemented CI/CD workflows with Jenkins, improving build automation and release velocity.

• Applied best practices in software development, including unit testing and agile methodologies, ensuring high-quality code.

.Net Developer

Ecommerce Boost Inc

Sep 2014 – Mar 2015

• Converted legacy systems to modern .NET applications, improving reliability and reducing errors by 40%.

• Collaborated with stakeholders to define conversion strategies and ensure compliance with business needs.

• Scoped and planned migrations, identifying performance improvements and potential bottlenecks.

• Enhanced application functionality with new features, significantly boosting productivity for client teams.

• Optimized performance through database tuning and code refactoring, reducing processing times by 50%.

• Maintained and updated websites, improving usability and design consistency across devices.

• Provided ongoing support and troubleshooting, maintaining high client satisfaction and resolving issues promptly.

Education:

Bachelor's Degree of Computer Science (09/2012 - 05/2014) City Tech, CUNY USA

Associate’s Degree of Computer Technology Aug 2009 – Apr 2012 LaGuardia Community College USA

Contact this candidate