Experience

Scand

• Poland
• Software Development
• 100 - 200 Employee

• Senior Software Engineer

  • Jun 2020 - Present

  Developing and deploying serverless applications using AWS Lambda, API Gateway, and DynamoDB to build scalable and cost-effective backends. Designing and implementing RESTful APIs and microservices using Node.js to facilitate communication between frontend and backend components. Building and maintaining databases and data models using technologies like DynamoDB, PostgreSQL, and MongoDB to ensure data integrity and efficient access. Developing secure authentication and authorization systems using technologies like OAuth, JWT, and AWS Cognito to protect user data and ensure compliance with security standards. Collaborating with designers to build responsive and user-friendly web applications using React, Redux, and CSS frameworks like Material UI. Working closely with DevOps teams to integrate CI/CD pipelines and automate testing and deployment processes using tools like AWS CodePipeline and CodeDeploy. Debugging and troubleshooting production issues, identifying root causes, and implementing solutions to improve application performance and reliability. Keeping up to date with emerging technologies and trends in web development, contributing to the development of best practices and standards within the organization. Show less



Solvd

• United States
• Software Development
• 1 - 100 Employee

• Back End Developer

  • Apr 2018 - Jun 2020

  Developed and deployed a serverless application using Node.js and AWS Lambda, reducing infrastructure costs by 30%. Implemented a continuous integration and deployment (CI/CD) pipeline for a web application using AWS CodePipeline and CodeDeploy, resulting in faster deployment times and higher quality code. Created and managed AWS resources such as EC2 instances, S3 buckets, and RDS databases for a client project, ensuring high availability and scalability. Built a chatbot using Node.js and AWS Lex that increased customer engagement by 50% and reduced support tickets by 20%. Optimized the performance of a Node.js web application hosted on AWS Elastic Beanstalk, resulting in a 40% improvement in page load times. Collaborated with a team of developers to design and implement a microservices architecture using Node.js and AWS ECS, leading to a more modular and scalable system. Show less