Ivan

Stasiuk Ivan
Back-end developer

Experience

January 2022 ‐ August 2024
Digicode

Contact Back-End Developer
Business logic implementation, feature development, services integration, code reviews
and refactoring
Phone Number/Telegram
[open contact info](look above in the "contact info" section) / t.me/Vulcore

Email
[open contact info](look above in the "contact info" section) January 2018 ‐ October 2021
Istagroup
Address Civil Engineer
9 Urlivska st. app 300, Kyiv,
Fire safety systems (fire detection, fire alarm), Dispatch and Automation of fire protection
02095 Ukraine
systems

LinkedIn

Professional Summary
[open contact info](look above in the "contact info" section)
ivan-stasyuk-b23a57164/

Most of my work lies around implementing different features, business logic and services

Education
integration, such as Stripe, Billforward, Twilio, mailchimp, as well as research and
customer consult, along with limited expertise with CRM services such as Creatio and
KeyCRM. Main stack and systems I’m very familiar with are JS/TS, node.js, express,
2018 mongo, NestJS, MySQL, msSQL, PostgreSQL, Firebase realtimeDB, firebase cloud
functions etc. Never afraid and always eager to widen the stack and rise to the task.
Master of Science: Automation
of electro mechanical systems Some notable projects I’ve worked on include: Biointelli, ZiP - Dating and Friendship,
National Technical University of Ukraine Powerlinx, WeAreRosie, Kakubi
"Kyiv Polytechnic Institute" Kyiv, Ukraine

Personal Summary
Language
I'm a dedicated back-end developer with a passion for simply writing code. I take great joy
Ukrainian, native in coding pretty and efficient lines. With multiple years of hands-on experience, I've
successfully contributed to projects of various sizes and complexity levels.
English, fluent
Working as a back-end developer I've learned to implement scalable and efficient APIs
that ensure seamless integration with front-end systems.

A few of my greatest strengths are my ability to learn quick, adaptability and vigor: I will
not stop until everything works as intended up to the smallest detail.

Aside from my technical skills, I'm a generally friendly person with strong communication
and collaboration abilities as I've had to work with a lot of different cross-functional
teams and clients, working together to come up with better solutions and helping them to
understand my side of things to end up with a better project overall.
 Stasiuk Ivan
Back-end developer

Stack
Technologies I’m most familiar with:
JS/TS, HTML & CSS;
MongoDB, SQL, PostgreSQL, Redis, msSQL, Firebase realtimeDB;
nodejs, NestJS, express, swagger, Elasticsearch, RabbitMQ, Jest;
Contact Intellij IDEA, VS Code, Android Studio, Git;
AWS (EC2, S3, CloudWatch, Secrets Manager), Jira, Jenkins, Rancher, Lens, Docker;
React-admin, KeyCloak;
Phone Number/Telegram TensorFlow;
[open contact info](look above in the "contact info" section) / t.me/Vulcore socket.io, segment.io;
Firebase;
Email Twilio, Stripe, Billforward;
[open contact info](look above in the "contact info" section) Creatio, KeyCRM;

Address Notable projects
9 Urlivska st. app 300, Kyiv,
02095 Ukraine ZiP - Dating and Friendship
ZiP Dating is a dating/friendship app that revolves around somewhat rigorous people
verification to help our clients find their mate with considerably lower risks of getting into
LinkedIn scams. Main challenges this project brought are:
[open contact info](look above in the "contact info" section)
the need for automatically-synced and up-to-date data on all the user devices with
ivan-stasyuk-b23a57164/
minimal bandwidth and lag;
photo and video verification processes;
synchronized, autocorrecting and autorestoring work of multiple horisontaly-scaled

Education microservices.

Stack: JS, MongoDB, nodejs, express, AWS, Jenkins, Docker, React-admin, Tensorflow,
2018 socket.io, Firebase, Twilio, Stripe.

Master of Science: Automation Biointelli
of electro mechanical systems Biointelli is a big-data analysis project where my work lied in data parsing, categorization
National Technical University of Ukraine and user authentication. Main challenges of Biointelli project from my perspective
"Kyiv Polytechnic Institute" Kyiv, Ukraine included:
efficient data parsing;
data prediction, deduction and statistical appliances;
application of statistics to generate more data;
under-the-hood work with KeyCloak configuration using Java.
Language
Stack: TS, NestJS, swagger, Elasticsearch, KeyCloak, Docker.
Ukrainian, native
WeAreRosie
English, fluent WeAreRosie is a service that allows recruiters to find the workforce and for people to
find work. The main problem is that under the hood the project utilizes a great quantity of
heavily structured third-party services, like Salesforce, SmartRecruiter, Harvest, etc. The
amount of forethought that had to be put into the data structure planning is nothing less
than titanic.

Stack: TS, NestJS, swagger, Salesforce, SmartRecruiter, KeyCloak, Docker, Lens

Powerlinx
Powerlinx is a B2B application that would allow businesses to find each other, for demand
to meet the supply and vice versa.
As this is the project I’ve started working on since my day 1 as a BE developer, and, on
top of that, project being pretty archaic and complex, the main challenge was to
understand how the system in it’s entirety works and how not to break existing things
while implementing new features, modifying the search and feed capabilities and
improving the flow.

Stack: JS, express, MySQL, Elasticsearch, AWS, Docker, segment.io, Firebase, Twilio,
Billforward.