j-labs software specialists

Working as a Production Engineer and Full-Stack Developer for the largest bank in Europe in bilingual team.

Senior Full Stack Developer

SpeechFlow

Chief Technology Officer

Sii Poland

Building highly scalable distributed solutions that enable positive user experiences and measurable business growth for the oldest Danish brand in the Digital Media industry.

• Development of the core Marketing APIs in the organization
• Improvement in our internal IDP Service (Identity Provider) and management of SAP Data Cloud (Gigya) for SSO purposes
• Moving from Google Auth API to OneLogin OIDC
• Creation of a new Authentication Service for all services in Domain + for external vendors (Express.js)
• Moving traffic from Hawk-based authentication to OAuth 2.0
• Implementing Event-Driven architecture between microservices (Amazon SNS, Amazon SQS, Apache Kafka)
• Implementing REST APIs (Node.js: Express.js, Hapi.js, NestJS)
• Managing organization's data stores: PostgreSQL, MongoDB (Amazon Aurora and DocumentDB) 
• Monitoring, Tracing, and covering traffic (Amazon CloudWatch)
• Redesign of authentication flows in all brands (React.js, Symfony)
• Development and Maintenance of authentication and authorization NPM Packages
• Providing NPM Packages as SDKs for our APIs
• Development and Maintenance of Self-Service App - a standalone app injected into main products (React.js)
• Development and Maintenance of Admin Panel in the organization
• Maintenance of GDPR-related products
• Sharing domain and programming knowledge with less experienced developers
• Actively participate in project meetings
• Working in a bilingual team, Scrum (ENG/PL)

Full Stack Engineer | Tech Lead

Providing compliance-related development and maintenance with improving overall performance for the Gambling industry.

• Introduction of CMS into existing landing pages with the highest traffic to share same code across all of the markets (ContentStack)
• Improvement at primary landing pages by speeding up loading metrics by over 35% (React SSR)
• Repair of authentication process and introduction of a new registration form. Bounce rate has increased at Italian market by almost 30%
• Migration of building process in existing CI/CD Gitlab pipelines (Dind to Kaniko)
• Content update for SEO purposes for Italian and Spanish markets (Squiz, ContentStack)
• Introduction of promotions section into Vegas application (React, ContentStack)
• Applying compliance fixes for all jurisdictions in Footer and Header packages shared across whole client’s environments
• Improving performance and stability in rendering process for existing SSR app (React, Streams)
• Creation of MVP for multiple-upload large-sized files (Angular, RxJS, Express, Cypress)
• Sharing domain and programming knowledge with less experienced developers
• Actively participate in project’s meetings
• Working in a bilingual team, Scrum and Kanban (ENG/PL)

Frontend Developer

Miquido

An accreditation and card printing application with reusable web components (custom elements) to create ticket design online on canvas.

• Introduction of application launcher feature allowing to switch between different applications at one domain (with SSO and feature toggle/roles restrictions, Angular, TypeScript)
• Development of layout-designer web component package from scratch (plain TypeScript, Konva.js, Canvas)
• Applying web component to already existing single-page applications (MutationObservers)
• Maintenance and creation of repositories and linked CI/CD pipelines (GitLab, TeamCity)
• Sharing domain and programming knowledge with less experienced developers
• Actively participate in project's meetings and workshops with clients
• Work in a bilingual team in Scrum (ENG/PL)


A platform for events services management in big areas (e.g. football stadiums) to help staff with their work and cover ticket authorization.

• Development and maintenance of the frontend application layer of a portal (Angular, TypeScript)
• Performance improvement by introducing a new architecture into main application parts (NGXS, RxJS)
• Introduction of single sign-on authentication (Auth0) 
• Actively participate in project's meetings
• Work in a bilingual team in Scrum (ENG/PL)

AIQA Technologies

Intelligent automated e2e test selection to boost CI/CD processes through AI algorithms.

• Development and maintenance of the frontend layer of main application (React)
• Implementation/Migration of the main app to TypeScript
• Development of small CRUD apps to increase the accuracy of our AI model
• Implementation of different e2e web testing frameworks (Cypress, Protractor)
• Representation of the company at topic events
• Work in Scrum methodology

Lonsley

Machine-Learning based software house. I was responsible for the web layer of solutions.

• Development of the messaging system as WebComponent (Angular Elements)
• Implementation of single page application as a dashboard to manage workflow in the enterprises (Angular)
• Development and maintenance of a web platform for a custom recruitment process (Vue, Node.js)
• Work in Kanban methodology

Junior Frontend Developer

✈️ Nomading a bit 🌍 
In love with startups and innovative business solutions. 

x3 Winner of the biggest stationary hackathon in Europe - HackYeah: 1st place (2017, 2018); 2nd place (2019). 

Winner of National Final of the whole hackathon series - PekaoCoders (2019 Bank PEKAO S.A.)

x2 Winner of Startup Weekend (Rzeszów: 2017, 2018), Honor Mention (Prague: 2018), Best Pitch (Łódź 2018)

Winner of Pitching Fight Night (Kraków 2019) representing AIQA Technologies. 

—

StrengthsFinder:
1. Competition
2. Command
3. Individualisation
4. Activator
5. Ideation

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