Nikita – Express.js, Typescript, Node.js

It is an e-commerce platform for coaches, agencies and influencers to increase their sales in a comfortable and automated way

• Implemented multiple key features of a system, like new payment methods, rescheduled payments, subscriptions, reports generation, backoffice features
• Refactored a big part of key omponents (payments, webhooks logic)
• Implemented a mechanism for synchronizing data between Stripe and the internal DB
• Improved security and stability of the application by securing webhooks, integrating Sentry, adding AWS logs and SonarCloud
• Did technical interviews and onboarding of new devs.

It is an international company providing business solutions for oil/gas, renewable energy and maritime industries.

• designed architecture for both Importer and Validator
• implemented 90% of Importer and Validator functionalities
• implemented 50% of Carburization functionality
• made different profiling features (grafana dashboards, benchmarks) for a number of applications
• provided a proper (80-90%) coverage for applications described above

It is a worldwide hospitality system. It provides places to live and co-work. Most hotels are located in South America.

• rewrited old monolith express.js application to a nest.js microservices structure
• designed app and database architecture for residency service
• implemented 90% of a residency service backend with according requirements from PM, PO and tech lead
• implemented 50% of a loyalty service business logic
• implemented 100% of a geo service
• did a proper (80-90%) units coverage for all of the services listed
• mentored onboarding developers

A system for an effective user distribution across different dating websites.

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• implemented ~50% of Schemas, Filters and Clients services, along with a proper units/integration coverage
• designed an architecture for external clients communications
• new developers mentoring
• was taking a lead role within multiple business epics

It is a web application that allows users to get information about tourism in the Dnipropetrovsk region of Ukraine

Main features Nik has worked on:

• Multiple pages design
• UI/UX

• developed a frontend part for an application
• integrated a Google Maps API into the project
• discussed frontend design with designers, along with implementing it