With over 11 years of experience building and scaling enterprise-grade web platforms using Node.js, Python, and cloud-native architectures on AWS and Azure. I design microservices, event-driven systems, and real-time data pipelines, integrating AI/ML capabilities and DevOps automation to deliver measurable business outcomes. I enjoy crafting interactive, high-performance frontends with React, Angular, and Vue to boost user engagement.

Mark Wlodawski

With over 11 years of experience building and scaling enterprise-grade web platforms using Node.js, Python, and cloud-native architectures on AWS and Azure. I design microservices, event-driven systems, and real-time data pipelines, integrating AI/ML capabilities and DevOps automation to deliver measurable business outcomes. I enjoy crafting interactive, high-performance frontends with React, Angular, and Vue to boost user engagement.

Available to hire

With over 11 years of experience building and scaling enterprise-grade web platforms using Node.js, Python, and cloud-native architectures on AWS and Azure. I design microservices, event-driven systems, and real-time data pipelines, integrating AI/ML capabilities and DevOps automation to deliver measurable business outcomes.

I enjoy crafting interactive, high-performance frontends with React, Angular, and Vue to boost user engagement.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

English
Fluent

Work Experience

Independent Developer at I Make The Sites
April 1, 2024 - Present
Developed AI-powered features using TensorFlow.js for real-time sentiment analysis and text classification on customer feedback. Integrated NLP models for automated content generation, enhancing product description efficiency and customer support responses. Collaborated with the React.js team to embed AI models into web applications, increasing user engagement by 20%. Created predictive analytics models for inventory forecasting to improve stock management. Utilized AWS AI/ML services for model training and deployment, ensuring scalability and real-time inference.
Senior Software Engineer at Third Eye Software
March 31, 2024 - August 19, 2025
Created machine learning models with TensorFlow.js for e-commerce recommendation engines, boosting conversion rates. Built NLP systems for sentiment analysis on customer reviews and automated feedback reporting. Integrated AI-powered chatbots within React-based platforms, reducing customer support response times by 30%. Developed real-time AI-driven dashboards using Python and TensorFlow to monitor business KPIs. Deployed predictive models that enhanced decision-making in marketing and product targeting.
Senior Front-end Engineer at Optomi
December 31, 2022 - August 19, 2025
Designed and implemented NLP-based systems for summarizing financial texts and analyzing customer sentiment. Integrated TensorFlow.js models into React applications for real-time AI predictions. Developed financial forecasting models using Python (Flask) and TensorFlow for risk analysis and loan predictions. Implemented machine learning pipelines to detect fraud and analyze customer behavior in authentication flows. Authored robust test suites for AI features using Jest, Mocha, and PyTest.
Full-Stack Engineer at Toptal
November 1, 2021 - August 19, 2025
Worked with various clients on full-stack development projects using React, Next.js, and Node.js. Built and maintained feature-rich web applications including e-commerce dashboards, CMS platforms, and SaaS tools. Integrated secure third-party services such as payment gateways, OAuth, and CRM APIs. Delivered responsive, cross-platform web experiences optimized for performance and accessibility. Maintained clean code through regular testing, code reviews, and agile workflows, collaborating remotely with distributed teams on product roadmaps and client demos.
Senior Software Engineer at Cognizant
September 1, 2025 - October 8, 2025
Architected and developed Node.js-based microservices on AWS Lambda and ECS, improving scalability and reducing infrastructure costs by 28%. Integrated Python (FastAPI) services for AI-powered anomaly detection, automating log analysis and reducing MTTR by 40%. Led modernization of a legacy Express.js API to NestJS-based services, improving latency by 35% and API uptime to 99.9%. Implemented CI/CD pipelines with GitHub Actions, Docker, and Kubernetes, enabling daily deployments with zero-downtime rollouts. Collaborated in an Agile team with Jira/Confluence, leading sprint planning, backlog grooming, and cross-functional code reviews. Automated data workflows with AWS S3, RDS, and Lambda Layers, improving reporting efficiency by 45%. Developed React.js-based admin dashboards for real-time cloud metrics.
Senior Software Engineer at Third Eye Software
March 1, 2024 - October 8, 2025
Engineered high-performance Node.js and TypeScript APIs using NestJS and PostgreSQL, enabling multi-tenant SaaS for 20K+ concurrent users. Built Python scripts for ML model orchestration with TensorFlow and scikit-learn, integrating predictive insights into the Node.js backend. Migrated on-prem workloads to AWS ECS, SQS, CloudWatch; 35% cost reduction and 50% improvement in availability. Automated deployment and monitoring pipelines with Terraform, Docker, and Prometheus, increasing observability and reliability. Designed GraphQL APIs to optimize data retrieval, reducing payload by 30% and improving client-side performance. Implemented real-time messaging with Socket.IO and Redis. Exposed AI/ML inference endpoints via FastAPI. Led Agile transformation across the engineering division, introducing retrospectives and CI metrics that boosted delivery speed by 22%.
Full Stack Engineer at Toptal
November 1, 2021 - October 8, 2025
Delivered full-stack solutions using Node.js, Express, and MongoDB for fintech, logistics, and e-commerce clients. Built React and Angular frontends with Redux and RxJS; improved UI interactivity and reduced load times by 45%. Integrated Vue.js for modular frontends on smaller projects. Developed RESTful APIs and GraphQL endpoints; standardized CI/CD with Jenkins and Docker, cutting release times by 60%. Leveraged AWS Lambda and API Gateway for serverless APIs. Collaborated with QA teams to build Python-based test suites (PyTest, Selenium), improving defect detection by 35%. Practiced Agile methodologies with global teams (Scrum/Kanban).
Senior Software Engineer at Cognizant
September 1, 2025 - October 8, 2025
Architected and developed Node.js-based microservices deployed on AWS Lambda and ECS, improving system scalability and reducing infrastructure costs by 28%. Integrated Python (FastAPI) services for AI-powered anomaly detection, automating log analysis and reducing MTTR by 40%. Led modernization of a legacy Express.js API to NestJS-based service architecture, improving response latency by 35% and API uptime to 99.9%. Implemented CI/CD pipelines with GitHub Actions, Docker, and Kubernetes, enabling daily deployments with zero-downtime rollouts. Collaborated in an Agile/Scrum environment, leading sprint planning, backlog grooming, and cross-functional code reviews across distributed teams. Automated data workflows using AWS S3, RDS, and Lambda Layers for internal analytics dashboards, improving reporting efficiency by 45%. Developed React.js admin dashboards for real-time cloud metrics and performance insights.
Senior Software Engineer at Third Eye Software
March 1, 2024 - October 8, 2025
Engineered high-performance Node.js and TypeScript APIs using NestJS and PostgreSQL to support multi-tenant SaaS serving 20K+ concurrent users. Built Python ML orchestration scripts and FastAPI endpoints for NLP-based insights. Migrated on-premise workloads to AWS (ECS, SQS, CloudWatch), achieving 35% cost reduction and 50% improvement in availability. Automated deployment/monitoring with Terraform, Docker, and Prometheus. Designed GraphQL APIs with Node.js, enabling efficient data retrieval; implemented real-time messaging with Socket.IO and Redis. Led Agile transformation across engineering, increasing delivery speed by 22%.
Full Stack Engineer at Toptal
November 1, 2021 - October 8, 2025
Delivered full-stack web solutions using Node.js, Express, and MongoDB for clients in fintech, logistics, and e-commerce. Built React and Angular frontends with Redux/RxJS; integrated Vue.js for modular components on smaller projects. Implemented RESTful APIs and GraphQL endpoints; standardized CI/CD with Jenkins and Docker; delivered serverless APIs on AWS Lambda. Collaborated with QA automation to create Python-based test suites with PyTest and Selenium. Practiced Agile methodologies in globally distributed teams.
Senior Software Engineer at Cognizant
September 1, 2025 - October 8, 2025
Architected and developed Node.js-based microservices deployed on AWS Lambda and ECS, improving system scalability and reducing infrastructure costs by 28%. Integrated Python (FastAPI) services for AI-powered anomaly detection, automating log analysis and reducing mean time to resolution (MTTR) by 40%. Led modernization of a legacy Express.js API to a NestJS-based service architecture, improving response latency by 35% and API uptime to 99.9%. Implemented CI/CD pipelines with GitHub Actions, Docker, and Kubernetes, cutting deployment cycles from weekly to daily while maintaining zero-downtime rollouts. Collaborated in an Agile/Scrum team, leading sprint planning, backlog grooming, and cross-functional code reviews across distributed teams. Automated data workflows using AWS S3, RDS, and Lambda Layers to support internal analytics dashboards, improving reporting efficiency by 45%. Developed React.js-based admin dashboards for real-time cloud metrics and performance insights. Mentored ju
Senior Software Engineer at Third Eye Software
March 1, 2024 - October 8, 2025
Engineered high-performance Node.js and TypeScript APIs using NestJS and PostgreSQL, enabling multi-tenant SaaS functionality supporting 20K+ concurrent users. Built Python scripts for machine learning model orchestration, integrating predictive insights into the Node.js backend. Migrated on-premise workloads to AWS Cloud (ECS, SQS, CloudWatch), achieving a 35% cost reduction and 50% improvement in server availability. Automated deployment and monitoring pipelines using Terraform, Docker, and Prometheus, increasing system observability and deployment reliability. Designed GraphQL APIs with Node.js to optimize data retrieval, reducing network payload size by 30% and improving client-side performance in React and Angular apps. Implemented real-time messaging with Socket.IO and Redis, enhancing live data synchronization across distributed clients. Collaborated with data scientists to expose AI/ML inference endpoints via FastAPI, integrating NLP-based text classification within customer-fa
Full Stack Engineer at Toptal
November 1, 2021 - October 8, 2025
Delivered full-stack web solutions using Node.js, Express, and MongoDB for clients across fintech, logistics, and e-commerce domains. Built React and Angular (2+) frontends with Redux and RxJS, enhancing interactivity and reducing UI load times by 45%. Integrated Vue.js for modular frontends on smaller-scale projects, enabling faster component reuse and maintainable codebases. Developed RESTful APIs and GraphQL endpoints in Node.js for multi-service ecosystems, ensuring seamless data flow between distributed systems. Designed automated CI/CD pipelines with Jenkins and Docker, standardizing deployment workflows and cutting release times by 60%. Implemented AWS Lambda and API Gateway to deliver cost-efficient serverless APIs. Collaborated with QA automation teams to build Python-based test suites using PyTest and Selenium, improving defect detection by 35%. Practiced Agile methodologies with global teams, using Scrum and Kanban frameworks to ensure consistent delivery in fast-paced envir
Senior Software Engineer at Cognizant
September 1, 2025 - October 8, 2025
Architected and developed Node.js-based microservices deployed on AWS Lambda and ECS; integrated Python (FastAPI) services for AI-powered anomaly detection; modernized a legacy Express.js API to a NestJS-based architecture; implemented CI/CD pipelines with GitHub Actions, Docker, and Kubernetes; collaborated in Agile Scrum teams; automated data workflows for internal analytics dashboards; built React.js admin dashboards for real-time monitoring; mentored junior developers on Node.js best practices and API design.
Senior Software Engineer at Third Eye Software
March 1, 2024 - October 8, 2025
Engineered high-performance Node.js and TypeScript APIs using NestJS and PostgreSQL for multi-tenant SaaS with 20K+ concurrent users; built Python scripts for ML model orchestration; migrated on-prem workloads to AWS (ECS, SQS, CloudWatch); automated deployment and monitoring with Terraform, Docker, and Prometheus; designed GraphQL APIs; implemented real-time messaging with Socket.IO and Redis; collaborated with data scientists to expose AI/ML inference endpoints via FastAPI; led Agile transformation across the engineering division.
Full Stack Engineer at Toptal
November 1, 2021 - October 8, 2025
Delivered full-stack solutions using Node.js, Express, and MongoDB; built React and Angular frontends with Redux and RxJS, and Vue.js for modular frontends on smaller projects; developed RESTful APIs and GraphQL endpoints for multi-service ecosystems; designed automated CI/CD pipelines with Jenkins and Docker, standardizing deployment workflows and cutting release times; deployed AWS Lambda and API Gateway for serverless APIs; collaborated with QA automation teams to build Python-based test suites with PyTest and Selenium; practiced Agile methodologies with global teams.
Senior Software Engineer at Cognizant
September 1, 2025 - October 8, 2025
Architected and developed Node.js-based microservices deployed on AWS Lambda and ECS, improving system scalability and reducing infrastructure costs by 28%. Integrated Python (FastAPI) services for AI-powered anomaly detection, automating log analysis and reducing MTTR by 40%. Led modernization of a legacy Express.js API to a NestJS-based service architecture, improving response latency by 35% and API uptime to 99.9%. Implemented CI/CD pipelines with GitHub Actions, Docker, and Kubernetes, cutting deployment cycles from weekly to daily while maintaining zero-downtime rollouts. Collaborated in an Agile/Scrum team, leading sprint planning, backlog grooming, and cross-functional code reviews across distributed teams. Automated data workflows using AWS S3, RDS, and Lambda Layers, improving reporting efficiency by 45%. Developed React.js admin dashboards for real-time system monitoring and performance insights. Mentored junior developers on Node.js best practices, RESTful API design, and mi
Senior Software Engineer at Third Eye Software
March 31, 2024 - October 8, 2025
Architected high-performance Node.js and TypeScript APIs using NestJS and PostgreSQL, enabling multi-tenant SaaS functionality supporting 20K+ concurrent users. Built Python scripts for machine learning model orchestration using TensorFlow and scikit-learn, integrating predictive insights into the Node.js backend. Migrated on-prem workloads to AWS Cloud (ECS, SQS, CloudWatch), achieving a 35% cost reduction and 50% improvement in server availability. Automated deployment and monitoring pipelines using Terraform, Docker, and Prometheus, increasing system observability and deployment reliability. Designed GraphQL APIs with Node.js to optimize data retrieval, reducing network payload size by 30% and improving client-side performance in React and Angular apps. Implemented real-time messaging with Socket.IO and Redis, enhancing live data synchronization across distributed clients. Collaborated with data scientists to expose AI/ML inference endpoints via FastAPI, integrating NLP-based text c
Senior Software Engineer at Toptal
November 1, 2021 - October 8, 2025
Delivered full-stack web solutions using Node.js, Express, and MongoDB, serving clients across fintech, logistics, and e-commerce domains. Built React and Angular (2+) frontends with Redux and RxJS, enhancing interactivity and reducing UI load times by 45%. Integrated Vue.js for modular frontends on smaller-scale projects, enabling faster component reuse and maintainable codebases. Developed RESTful APIs and GraphQL endpoints in Node.js for multi-service ecosystems, ensuring seamless data flow between distributed systems. Designed automated CI/CD pipelines with Jenkins and Docker, standardizing deployment workflows and cutting release times by 60%. Implemented AWS Lambda and API Gateway to deliver cost-efficient serverless APIs for clients with dynamic workloads. Collaborated with QA automation teams to build Python-based test suites using PyTest and Selenium, improving defect detection by 35%. Practiced Agile methodologies with global teams, using Scrum and Kanban frameworks to ensure

Education

International MBA at University of Memphis
January 1, 2011 - August 19, 2025
Master’s degree of Engineering at University of Memphis
January 11, 2030 - January 1, 2011
Master of Engineering at University of Memphis
January 11, 2030 - January 1, 2011
Master’s Degree of Engineering at University of Memphis
January 11, 2030 - January 1, 2011
Certificated AI Engineer at USAII
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner at AWS
January 1, 2023 - October 8, 2025
Master’s degree of Engineering at University of Memphis
January 11, 2030 - January 1, 2011
Certificated AI Engineer at USAII
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner - AWS at AWS
January 1, 2023 - October 8, 2025
Master’s degree of Engineering at University of Memphis
January 11, 2030 - January 1, 2011
Certificated AI Engineer at USAII
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner - AWS at AWS
January 1, 2023 - October 8, 2025

Qualifications

Certified AI Engineer – USAII
May 1, 2024 - August 19, 2025
Certified TensorFlow Developer – TensorFlow
January 1, 2024 - August 19, 2025
Certified Cloud Practitioner – AWS
January 1, 2023 - August 19, 2025
Certificated AI Engineer
January 11, 2030 - May 1, 2024
Certificated Cloud Practitioner - AWS
January 11, 2030 - January 1, 2023
Certificated AI Engineer - USAII
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner - AWS
January 1, 2023 - October 8, 2025
Certificated AI Engineer
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner
January 1, 2023 - October 8, 2025
Certificated AI Engineer
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner - AWS
January 1, 2023 - October 8, 2025
Master’s degree of Engineering
January 11, 2030 - January 1, 2011
Certificated AI Engineer
May 1, 2024 - October 8, 2025
Certificated Cloud Practitioner - AWS
January 1, 2023 - October 8, 2025

Industry Experience

Software & Internet, Financial Services, Retail, Professional Services