Jelena Marjanović
Software Engineer
Summary
I am a passionate software engineer with over four years of experience specializing in JavaScript, TypeScript, and React.js. With a strong foundation in mathematics and analytical skills, I excel in problem-solving and quickly adapting to team environments to deliver high-quality software solutions.
My professional experience spans various industries, including AdTech and FinTech, where I have developed and maintained complex applications. I thrive in collaborative environments, delivering new features and improvements while adhering to industry best practices. My strong interpersonal and communication skills enhance my ability to work effectively in Agile teams.
In addition to my frontend expertise, I am actively expanding my knowledge in backend development, particularly focusing on Java, Spring, and Spring Boot. While I am just beginning to delve into DevOps, it is a field I am eager to explore and integrate into my skillset.
I prefer working in startups or companies with in-house projects and small-to-middle teams but also have experience in corporate environments.
In my free time, I enjoy reading IT and epic fantasy books, playing acoustic guitar, taking long walks, going to the gym, and playing basketball.
Overview
6
6
years of professional experience
9
9
Certifications
Work History
IT Consultant
TN-TECH
11.2023 - 04.2024
- As a diligent team player, I collaborate with UI/UX designers and other team members to develop new features, replace outdated technologies, and maintain high code quality by adhering to industry best practices
- Additionally, I ensure meticulous documentation by writing design/technical proposals and creating user stories to meet project requirements
- Tech stack: JavaScript, TypeScript, React.js, Next.js, Tailwind, Zustand, Tanstack React Query, React Testing Library, Jest, Storybook.
IT Consultant
TN-TECH
03.2022 - 08.2023
- Developing the ad tech application for Yahoo as a client
- Developing new features, improving existing ones, and adding significant business value to the DSP product (mostly DOOH related)
- Collaborating with Product and Project managers, UI/UX designers, and other members of the team, and fully owning medium to small-size feature implementations
- Conducting and receiving code reviews, keeping the high code quality
- Writing design documents and creating user stories accordingly
- Tech stack: JavaScript, Ember.js (v2.x), QUnit, CSS Flexbox, Sass, MySQL.
Associate JavaScript Engineer
Callsign
04.2020 - 03.2022
- Developing the fintech application for various clients
- Creating custom reusable components and implementing them
- Connecting the frontend part with REST API (Java and Spring at the backend) and writing queries to get and use data
- Writing the unit and end-to-end tests
- Tech stack: JavaScript, TypeScript, React.js, Redux.js, Redux-Saga, Jest, Enzyme, Cypress, CSS Flexbox, Sass, Storybook.
JavaScript/React Developer
Tehnicom Solutions
8 2019 - 12.2019
- As an external developer, I worked with a team from sTech d.o.o
- On developing the application for the insurant company
- Created custom reusable components and implemented them into forms, mainly
- Connected frontend part with REST API (C# and .NET at the backend) and wrote queries to get and use data
- Tech stack: JavaScript, TypeScript, React.js, Redux.js, Redux-Saga, Material-UI, CSS Grid, Flexbox, JSS, Formik, yup, Axios, Storybook.
JavaScript/React Developer
Bridgewater Labs
08.2018 - 03.2019
- Refactored an old code that was written in vanilla JS to ES6
- Created custom reusable components, completely styled with CSS-in-JS by using emotion library (similar to styled-components)
- Connected React components with GraphQL using Apollo client and wrote queries to get and use data
- Created Blog UI, with a few interesting CSS animations, using Flexbox and React Simple Img library
- Participated in other larger projects where we implemented our created components and customized theming, and wrote documentation for it
- Worked remotely in a small team, partly international
- Gains: Improved CSS knowledge, adopted good practices of coding, learned about and used new libraries, got a sense of working with a serverless backend.
Skills
JavaScript (ES5, ES6)
Certification
The Coding Interview Bootcamp: Algorithms + Data Structures - Stephen Grider, Udemy
Work Preference
Work Type
Full TimeContract WorkLocation Preference
RemoteImportant To Me
Flexible work hoursCareer advancementCompany CulturePersonal development programsWork-life balanceWork Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
swipe to browse
Languages
English
Advanced (C1)
Serbian
Bilingual or Proficient (C2)