I am a results-driven Senior Full Stack Engineer with over 9 years of experience designing, developing, and deploying scalable web and AI-driven solutions. I specialize in modern full stack development using Python, AI/ML technologies, and React.js, combined with expertise in cloud platforms like AWS and Azure, containerization, and DevOps practices. I have a proven track record of leading engineering teams, optimizing application performance, and delivering enterprise-level applications for global clients. I enjoy mentoring junior developers and actively engage in AI research and prototyping, experimenting with open-source large language models and autonomous agents. Beyond coding, I love cycling, hiking, digital design, and play competitive chess to sharpen my strategic thinking and pattern recognition skills.

Andrzej Kwiatkowski

I am a results-driven Senior Full Stack Engineer with over 9 years of experience designing, developing, and deploying scalable web and AI-driven solutions. I specialize in modern full stack development using Python, AI/ML technologies, and React.js, combined with expertise in cloud platforms like AWS and Azure, containerization, and DevOps practices. I have a proven track record of leading engineering teams, optimizing application performance, and delivering enterprise-level applications for global clients. I enjoy mentoring junior developers and actively engage in AI research and prototyping, experimenting with open-source large language models and autonomous agents. Beyond coding, I love cycling, hiking, digital design, and play competitive chess to sharpen my strategic thinking and pattern recognition skills.

Available to hire

I am a results-driven Senior Full Stack Engineer with over 9 years of experience designing, developing, and deploying scalable web and AI-driven solutions. I specialize in modern full stack development using Python, AI/ML technologies, and React.js, combined with expertise in cloud platforms like AWS and Azure, containerization, and DevOps practices. I have a proven track record of leading engineering teams, optimizing application performance, and delivering enterprise-level applications for global clients.

I enjoy mentoring junior developers and actively engage in AI research and prototyping, experimenting with open-source large language models and autonomous agents. Beyond coding, I love cycling, hiking, digital design, and play competitive chess to sharpen my strategic thinking and pattern recognition skills.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
Intermediate
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Work Experience

Senior AI Full Stack Engineer at Elinext
July 1, 2025 - August 4, 2025
Developed intelligent web applications using React.js and Python FastAPI to deliver enterprise AI tools hosted in the cloud. Integrated OpenAI's GPT models for contextual AI-driven features, reducing manual tasks by 35%. Led responsive UI design with React Hooks and Material UI, built high-throughput Python REST APIs supporting real-time inference and LLM orchestration. Managed asynchronous workflows and client data fetching, deployed containerized microservices on AWS Lambda, ECS, and EKS with autoscaling. Built infrastructure as code via AWS CDK, Terraform, and CloudFormation. Integrated hybrid cloud workflows across AWS and GCP. Orchestrated CI/CD pipelines for automated deployment and rollback, optimized frontend bundle size by 40%, and created real-time monitoring dashboards to ensure SLA compliance. Mentored junior developers in cloud-native practices, design patterns, TDD, and React architecture.
Full Stack Engineer at Infosys
March 1, 2021 - August 4, 2025
Maintained and extended internal and customer-facing platforms using React.js and Python Flask within a containerized microservices architecture on AWS ECS and Kubernetes. Developed real-time interactive dashboards using React, Chart.js, and WebSockets supported by AWS Lambda. Built ML pipelines for anomaly detection deployed via AWS SageMaker, integrating frontend alerts through WebSockets. Implemented secure authentication with JWT and Amazon Cognito identity management. Collaborated with product and UX teams to optimize UI with React, Redux Toolkit, and Formik/Yup, and deployed globally via AWS S3 and CloudFront. Improved backend API latency by 60% through profiling and MongoDB indexing optimization. Migrated monolithic services to modular Docker containers orchestrated by EKS, enhancing CI/CD deployment speed and service resilience. Developed automated test suites for backend and frontend with CI integration. Contributed to Agile cross-functional teams, led Python guild discussions
Full Stack Developer at WiseTech Global
April 1, 2018 - August 4, 2025
Delivered custom industry dashboards and live data applications with React.js and Python Flask, integrating real-time IoT sensor data via AWS IoT Core and Lambda. Refactored legacy jQuery UIs into React-based SPAs, improving maintainability and load time by 45%. Built modular REST APIs in Flask containerized with Docker, deployed on Google Cloud Run with auto-scaling. Integrated backend with MySQL and Firebase Realtime Database supporting hybrid cloud deployments. Created interactive data visualizations using React with D3.js and Chart.js, consuming real-time telemetry from AWS DynamoDB via API Gateway and Lambda. Developed QA automation with Selenium and PyTest integrated in CI pipelines. Implemented secure user authentication with Firebase Auth and GCP IAM. Automated cloud deployments with Docker and cloud-native AWS services. Conducted workshops and liaised with hardware teams to expose telemetry endpoints for React dashboards.
Senior AI Full Stack Engineer at Elinext
July 1, 2025 - August 5, 2025
Developed intelligent web applications using React.js frontend and Python (FastAPI) backend for enterprise-grade AI tools hosted in the cloud. Integrated OpenAI GPT models for contextual AI-driven features, reducing manual tasks by 35%. Led UI design using React Hooks and Material UI for responsive performance. Built high-throughput Python REST APIs with FastAPI supporting real-time inference and LLM orchestration. Utilized SQLAlchemy ORM with PostgreSQL and MySQL, managed async workflows, and implemented client-side data fetching with React Query. Deployed containerized microservices on AWS Lambda, ECS, and EKS with autoscaling and observability. Built cloud-native infrastructure using AWS CDK, Terraform, and CloudFormation. Integrated hybrid cloud workflows across GCP. Orchestrated CI/CD pipelines with GitHub Actions and AWS CodePipeline including canary releases. Applied frontend optimization techniques reducing bundle sizes by 40%. Created monitoring dashboards using Prometheus, Gr
Full Stack Engineer at Infosys
March 1, 2021 - August 5, 2025
Maintained and extended React.js and Python (Flask) platforms in containerized microservices deployed on AWS ECS and Kubernetes. Developed real-time interactive dashboards for network data using React, Chart.js, and WebSockets supported on AWS Lambda and API Gateway. Built ML pipelines in Python for anomaly detection deployed via AWS SageMaker. Implemented secure JWT authentication integrated with Amazon Cognito. Optimized React interfaces with Redux Toolkit and Formik/Yup, deployed globally via AWS S3 and CloudFront. Improved backend performance by profiling Flask endpoints and optimizing MongoDB indexes, reducing API latency by 60%. Migrated monolithic services to modular Docker/Kubernetes components improving CI/CD and resilience. Created comprehensive automated tests with PyTest, React Testing Library, and Cypress in CI pipelines. Collaborated in Agile cross-functional teams focusing on React-Python real-time integrations. Led internal Python guild standardization on logging and de
Full Stack Developer at WiseTech Global
April 1, 2018 - August 5, 2025
Delivered custom dashboards and live data apps using React.js and Python (Flask) integrating IoT data streamed via AWS IoT Core and Lambda. Refactored legacy jQuery UIs into modern React SPAs deployed on AWS Amplify, improving load time by 45%. Built RESTful Python APIs containerized with Docker and deployed on Google Cloud Run with autoscaling. Integrated backend with MySQL (Amazon RDS) and Firebase Realtime Database for hybrid cloud/edge deployments. Created interactive React visualizations using D3.js and Chart.js with real-time telemetry from DynamoDB via API Gateway + Lambda. Developed automated UI and API testing with Selenium and PyTest running in CI pipelines. Implemented secure user authentication with Firebase Auth and role-based access in React. Coordinated schema changes via Cloud SQL and Firebase Functions. Automated deployments with Docker and cloud services (AWS ECS, ECR). Conducted internal workshops on React architecture, Python cloud services, and CI/CD. Acted as liai

Education

Bachelor of Science – BS, Computer Science at Kyushu University
January 1, 2012 - January 1, 2016
Bachelor of Science – BS, Computer Science at Kyushu University
January 1, 2012 - January 1, 2016

Qualifications

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Industry Experience

Software & Internet, Computers & Electronics, Professional Services, Transportation & Logistics