Andrzej S.

Andrzej S.

Senior Full Stack Developer

Malaysia
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Portfolio

Lead Frontend Developer - Guide Human
Lead Frontend Developer - Guide Human

Provided frontend expertise for the Guide Human website; overseeing the implementation of new features and bug fixes using React and other supporting libraries and tools in line with industry best practices. Managed integration with the backend, handled data flow optimization tasks, performance profiling and improvement and the establishment of internal standards and ways of work - evangelizing Git branching model and workflow, deployment pipeline configurations, file structures and coding style.

Developer - Legacy.com (Obituary Web Generation App)
Developer - Legacy.com (Obituary Web Generation App)

Legacy's obituary-writing tool, ObitWriter, is an invaluable resource that allows users to write a complete basic obituary. It walks users through a series of questions about the deceased to generate the obituary. Developed and maintained the obituary generator web app; overseeing frontend form performance optimizations for the reduction of unnecessary React re-renderings. Worked on various refactorings to improve code quality and restructured the GraphQL queries for the solution.

Developer - Evidence Institute
Developer - Evidence Institute

Worked on an educational measurement and evaluation system through the development of a zero-downtime student evaluation platform based on QTI standards with the capacity to handle over 500 hits/s using very minimal hardware setup. Engineered the solution to be linearly scalable.

Developer - Media Markt
Developer - Media Markt

The Media Markt platform is a virtual educational space for teachers and educators. The platform has teaching materials and ready-made lesson plans, developed by professionals in the field of education. Worked on the search and registration app for the educational workshop events site held by the Polish branch of Europe's largest retailer of consumer electronics.

Developer - Ericsson Order Care & BSCS billing system deployment at Trans Link Systems
Developer - Ericsson Order Care & BSCS billing system deployment at Trans Link Systems

Actively participated in and worked on the integration and production launch of BSCS (telco billing system) and EOC (Ericsson's order management system); deployed as one BSS solution for Trans Link Systems (a public transport integrator in the Netherlands).

Work history

UpStack
UpStack
Senior Full Stack Developer
2019 - Present (4 years)
Remote
  • Developed an innovative social platform for sharing and discovering news and media. Used React, Redux, Redux Saga, Reselect, AWS (S3, CloudFront), Immutable.js, Styled Components for this project.

  • Achieved the reduction of technical debt, performance optimizations (reduction of unnecessary React rerenderings), refactorings improving code quality, and UX improvements.

  • Ensure that features are being delivered efficiently and on-time.

LiveArt.io
LiveArt.io
Front-End Developer
2021 - 2022 (1 year)
Remote
  • Worked on the redesign of registration and artwork sale forms for the LiveArt Market platform.

  • Oversaw the redesign of NFT minting process for LiveArt NFT, maintaining high standards of code quality and application design.

  • Built scalable solutions to ensure positive user experiences and measurable business growth.

Predictive UX
Predictive UX
Full-Stack Developer
2021 - 2021
Remote
  • Developed from scratch the Brew Finder application, a search tool for mortgage optimization leads.

  • Managed a successful and quick development of a fully functional MVP for this project.

  • Ensured cross-platform compatibility and optimization, also designing user interactions.

PhD Labs
PhD Labs
Lead Front-End Developer
2020 - 2021 (1 year)
Remote
  • Worked on the development of TruckQ, an innovative construction plant management software, handling coding works and complex parts of the project.

  • Maintained and audited code/design quality as per set guideline and standards in the project.

  • Liaised with key internal stakeholders and maintained clear communication channels throughout the software development lifecycle.

One Design Company (working for Legacy.com)
One Design Company (working for Legacy.com)
Full Stack Developer
2018 - 2019 (1 year)
Remote
  • Designed, developed and delivered high quality solutions on projects for One Design.

  • Efficiently drove best practices on solutions using TDD and BDD.

  • Created and maintained application documentation on the project.

Freelance
Freelance
Full Stack Web Developer
2017 - Present (6 years)
Remote
  • Design and build creative, usable and compelling user interfaces on web solutions using industry best practices, integrating data from 3rd party APIs and backend services on different projects for clients..

  • Efficiently develop new customer facing experiences and features on web solutions and define the architecture for delivering improvements to different solutions with high availability, performance, and scalability.

  • Provide technical guidance for code reviews, troubleshoot production support issues post release and solve complex production issues on projects.

Ericsson
Ericsson
Test Support and Integration
2015 - 2016 (1 year)
Netherlands
  • Offered functional smoke testing of the Order Management System for Trans Link Systems based on the Ericsson Order Care and BSCS systems.

  • Handled the integration of Ericsson's Order Care with legacy systems and internal components of the solution, databases, LDAP, etc.

  • Provided root-cause analysis on reported defects and troubleshot the Order Management System for T-Mobile.

Private Side Project
Private Side Project
Full Stack Developer
2014 - 2015 (1 year)
Remote
  • Worked on the esign and development of an e-commerce (social lending) platform using Django web framework.

  • Efficiently monitored key metrics and system heath, quickly identified and resolved complex problems on the solution.

  • Standardized the quality assurance procedure for the e-commerce platform and oversaw testing and developed fixes.

Ericsson
Ericsson
Solution Architect (BSCS onsite project at T-mobile Polska)
2012 - 2015 (3 years)
Warsaw, Poland
  • Provided technical and solution leadership in delivering architecture artifacts that promoted re-usability, modularity and scalability on the BSCS project.

  • Developed robust recommendations, proposals and scope of work documents for the project and identified critical dependencies and gaps within the solution.

  • Planned and documented the strategy, design and implementation of different engineering solutions on the project..

Capgemini
Capgemini
Consultant
2011 - 2012 (1 year)
Poland
  • Produced and delivered customer-specific demonstrations, technical presentations, pilots and proof of concepts on different projects for the client.

  • Developed the necessary software updates for customer projects with other software engineers within the company..

  • Engineered product features that delivered high value to customers, maintained project status reports and participated in project status meetings with business stakeholders.

Education

1 year Socrates / Erasmus Scholarship
1 year Socrates / Erasmus Scholarship
Universitat Politècnica de València (UPV)
2005 - 2006 (1 year)
MSc. Telecommunications and Computer Science
MSc. Telecommunications and Computer Science
Lodz University of Technology
2003 - 2011 (8 years)