02/16/2025 updated

**** ******** ****
100 % available

Full-Stack Engineer, CTO, Software Engineer, Full-stack Engineer

warsaw, Poland
Only remote
warsaw, Poland
Only remote

Profile attachments

CV - Jaroslaw Bogulak

HTMLJavaScriptPHPApplication Programming Interfaces (APIs)Amazon Web ServicesAmazon Elastic Compute CloudAmazon S3Atlassian JiraAuthenticationsBootstrap (Software)Cascading Style Sheets (CSS)Continuous IntegrationDjangoElasticsearchUser Interface DesignIssue Tracking SystemsMobile Application SoftwarejQueryPython (Programming Language)LaravelPostgreSQLMongoDBMySQLNode.jsRuby On RailsBlockchainAtlassian TrelloTypeScriptWeb Application DevelopmentData/Record LoggingPostmanReact.jsExpress.jsPixel PerfectAWS LambdaVue.jsAWS AppSyncGitIntegration TestsFigmaAtlassian BitbucketGraphQLReact NativeFront End Software DevelopmentReact ReduxApi DesignRestful ApiSoftware Version ControlServerless ComputingDockerMicroservices
AppSync, AWS Lambda, EC2, S3, AWS S3, AWS, API development, API, APIs, Bitbucket, Blockchain, Bootstrap, CSS, CI/CD, Logging, UI/UX, UI/UX design, Django, Docker, Elastic Search, Express.js, Figma, Frontend, front-end, Git, GraphQL, HTML, Integration Testing, Issue tracking, Jira, jQuery, JavaScript, Laravel, Microservices Architecture, microservices, mobile applications, mobile application, MongoDB, MySQL, Node, Node.js, PHP, pixel-perfect, PostgreSQL, Postman, Python, React Native, Redux, React, REST API, RESTful APIs, Ruby on Rails, serverless architecture, serverless, Version control, Trello, TypeScript, user authentication, Vue, developing web applications

Experience

Professional experience10+ years
Freelancer since2014

Languages

EnglishFluent

Project history

Senior Frontend Engineer

Periscope
Technologies: React, React Native, Redux, Bootstrap, Jest
* Used React and React Native to create and maintain Web and mobile applications.
* Integrated the app with Microservices architecture.
* Fetched and managed data from the server via API requests.
* Worked on a number of essential features, including user authentication and account,
administration, forms for data gathering and notifications to keep users informed.




* Teamed up with other engineers and designers to produce software that was of the
highest caliber.
With React and React Native, I was primarily in charge of creating and maintaining Web and
mobile applications. Making API queries to the server to get and manage data as well as
connecting the app with the Microservices architecture were all parts of my work.
Logging in, managing accounts, using an admin dashboard to manage users and data,
using forms to collect information, and sending notifications to users are among the
application's key features.
Strong expertise in React, React Native, and API development were required for this position.
Together with working with other engineers and designers to produce high-quality products, I
also dealt with the Microservices architecture.

Software Engineer

Social Mind
Technologies: TypeScript, React, Redux, Redux-saga, Socket.IO, AWS S3, Amazon Cognito, Node.js,
Express.js
* Delivered admin portal with complex UI using TypeScript/React/Redux.
* Updated product catalog page and navigation system with improved global search
functionality using Elastic Search.
* Built a dashboard with a messaging platform for the sales team with serverless architecture
using AWS, lambda, S3, Cognito, Socket.IO.




* Implemented RESTful APIs using Node and built microservices for microservices
architecture.
* Collaborated with Product designers on UI/UX issues, improving user experience and
providing exceptional customer service.
As a Software Engineer, I delivered an admin portal with a complex UI using
TypeScript/React/Redux. I also updated the product catalog page and navigation system
with improved global search functionality using Elastic Search. Furthermore, I built a
dashboard with a messaging platform for the sales team with serverless architecture using
AWS, lambda, S3, Cognito, Socket.IO.
In addition to this, I implemented RESTful APIs using Node and built microservices for
microservices architecture. I also worked collaboratively with Product designers to resolve
UI/UX issues, improve user experience, and provide exceptional customer service.

Full-stack Engineer

Self Employed
Technologies: HTML, CSS, JavaScript, PHP, AWS, Figma, Sketch, Bootstrap, Less
* Delivered user-friendly, pixel-perfect UI pages with UI designed in Figma and Sketch.
* Built five MVPs from start to finish focusing on good user experience and product
scalability.
* Built the microservices and serverless architecture for several applications with AWS.
* Collaborated with the product manager on UX issues on the frontend using JavaScript,
jQuery, HTML, CSS, Bootstrap, and Less.
* Provided APIs and libraries to assist other developers.
I worked on a variety of projects as a self-employed full-stack engineer, delivering userfriendly,
pixel-perfect UI pages with UI created in Figma and Sketch. I created five MVPs from
scratch, giving particular attention to user satisfaction and product scalability.
With the help of Amazon, I developed the serverless and microservices architecture for a
number of apps, enhancing their scalability and performance. I worked with the product
manager to develop JavaScript, jQuery, HTML, CSS, Bootstrap, and Less solutions for front-end
UX problems.
In addition, I developed skills in UI/UX design, full-stack development, AWS, and laid a solid
basis for my profession throughout my time there.

Certificates

React Certification

TestDome

2022


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