Ivan Stanojevic, Developer in Belgrade, Serbia
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Ivan Stanojevic

Verified Expert  in Engineering

SaaS Developer

Location
Belgrade, Serbia
Toptal Member Since
January 8, 2016

Ivan is a software engineer with over five years of experience developing front-end architectures and working on SaaS products. He has fulfilled various roles on the development team, including creating testing frameworks, maintaining build scripts, and designing and implementing new front-end features. Ivan is always eager to learn and enjoys sharing his knowledge with others, making him a valuable team member.

Portfolio

Ceviant Finance Ltd
Node.js, React, HTML, JavaScript, CSS, HTML5, Angular, Next.js, API Integration...
Blacc Spot Media
TypeScript, NestJS, React, Twilio, Twilio Flex, Twilio API, Twilio Sync API...
Opt Health
Express.js, Google Cloud, PostgreSQL, React, Heroku, TokBox, APIs...

Experience

Availability

Part-time

Preferred Environment

Subversion (SVN), Git, Windows, Linux, MacOS, PhpStorm

The most amazing...

...thing I've created is a front-end framework based on SPA principles that uses a suite of JavaScript libraries.

Work Experience

Front-end Developer

2022 - 2023
Ceviant Finance Ltd
  • Developed the front end of a customer-facing app that allows corporates to easily manage their cash flow across multiple countries, subsidiaries, banks, and accounts.
  • Developed an admin app that company team members would use to manage corporates, manage KYC flow for corporate, execute OTC forex deals, and add banks and providers.
  • Acted as a team leader and brought stability and order to the team. Selected and onboarded new team members. Mentored and developed new team members.
  • Debugged and conducted analysis on production issues. Led efforts in the quick resolution of clients' issues.
  • Managed the release process of multiple front-end projects.
Technologies: Node.js, React, HTML, JavaScript, CSS, HTML5, Angular, Next.js, API Integration, REST, Integration, Leadership, TypeScript, Front-end, Minimum Viable Product (MVP), Back-end, Web Development, Styled-components, CI/CD Pipelines, Finance, Engineering, Team Management, Engineering Management, Agile, Figma, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Senior Full-stack Developer

2019 - 2021
Blacc Spot Media
  • Developed a multi-tenant, multi-plugin application based on the TwilioFlex platform. Developed the back end to support additional functionalities.
  • Reviewed, assessed, developed, documented, and maintained software features. Interviewed, onboarded, managed, and mentored team members.
  • Communicated with vendor/client teams in order to resolve issues, remove obstacles, and derive requirements.
  • Managed the deployment/delivery process. Resolved issues and supported other developers during the delivery process.
Technologies: TypeScript, NestJS, React, Twilio, Twilio Flex, Twilio API, Twilio Sync API, PostgreSQL, Redis, Agile Software Development, Amazon Web Services (AWS), APIs, API Integration, REST, RESTful Services, Integration, Leadership, Front-end, JavaScript, CSS, Full-stack, Back-end, Web Development, Styled-components, OAuth, Single Sign-on (SSO), CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture, Material UI

Senior Full-stack Developer

2020 - 2020
Opt Health
  • Developed the front and back end for the app that tracks different health indicators to determent a person's health score and tracks health over time. Users could schedule a private online checkup over the webRTC.
  • Reviewed, assessed, developed, and maintained software features.
  • Set up an automated deployment and delivery process and different environments.
Technologies: Express.js, Google Cloud, PostgreSQL, React, Heroku, TokBox, APIs, API Integration, REST, RESTful Services, Integration, Leadership, Front-end, Minimum Viable Product (MVP), JavaScript, CSS, Full-stack, Back-end, Web Development, OAuth, Single Sign-on (SSO), CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Figma, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Front-end Lead

2019 - 2019
Virtual Connections – Blacc Spot Media
  • Implemented the initial architecture for both admin and public applications.
  • Played the role of a FE technical leader and architect.
  • Implement video-chat components based on the TokBox API.
Technologies: TokBox, HTML, CSS, TypeScript, Yup, Formik, MobX, React, APIs, API Integration, REST, Integration, Leadership, Front-end, JavaScript, Back-end, Web Development, OAuth, CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Front-end Developer | Part Owner

2018 - 2019
Smart and Applied, d.o.o.
  • Managed client's requirements, expectations, communication, and relationships.
  • Improved the build and delivery process. Resolve issues with third-party integrations.
  • Implemented game features, fixed issues, and reviewed other teammates' work. Mentored and managed team members.
Technologies: PixiJS, Spine, GSAP, HTML5, Angular, API Integration, REST, Integration, Leadership, Front-end, JavaScript, CSS, Back-end, Web Development, CI/CD Pipelines, Engineering, Team Management, Engineering Management, Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Full-stack Web Developer and System Architect

2018 - 2018
Tele-ID – Blacc Spot Media
  • Designed and implemented the front- and back-end architectures for a HIPAA-compliant platform.
  • Implemented API endpoints and tests. Implemented UI components.
  • Managed development efforts to deliver products in time-constrained conditions.
Technologies: MySQL, Hapi.js, HTML, CSS, TypeScript, Angular, APIs, API Integration, REST, RESTful Services, Integration, Leadership, Front-end, Minimum Viable Product (MVP), JavaScript, Full-stack, Back-end, Web Development, OAuth, CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Full-stack Web Developer

2017 - 2018
WABI – Blacc Spot Media
  • Implemented missing functionality and API endpoints. Implemented UI components.
  • Fixed bugs and improved the codebase. Estimated, reviewed, and implemented features.
  • Set up the deployment process. Helped and supported teammates with tasks and issues.
Technologies: MySQL, Hapi.js, HTML, CSS, TypeScript, Angular, APIs, API Integration, REST, RESTful Services, Integration, Leadership, Front-end, Minimum Viable Product (MVP), JavaScript, Full-stack, Back-end, Web Development, CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Front-end Developer

2017 - 2017
3rd-eyes
  • Developed the front-end application for a wealth-management application.
  • Developed the initial proof-of-concept and minimum viable product.
  • Set up the initial front-end architecture in Angular. Implemented reusable UI components. Implemented charts based on the Highcharts library.
Technologies: HTML, CSS, TypeScript, Angular, API Integration, Integration, Front-end, Minimum Viable Product (MVP), JavaScript, Back-end, Web Development, CI/CD Pipelines, Engineering, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Full-stack Developer and System Architect

2016 - 2016
Surge Broad Band
  • Planned and implemented flexible cross-platform architecture using JavaScript as base technology.
  • Implemented a platform analytics sub-system.
  • Implemented communication between routers and additional hardware to improve additional router features.
Technologies: Ionic, Electron, Grunt, Angular, JavaScript, APIs, API Integration, REST, Integration, Leadership, Front-end, Minimum Viable Product (MVP), CSS, Full-stack, Back-end, Web Development, CI/CD Pipelines, Engineering, Engineering Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Software Architect and Software Engineer

2014 - 2016
CodeSynapses
  • Created front-end architecture in AngularJS for the social network application.
  • Worked on a multi-module, front-end build. Created a testing framework.
  • Developed and designed tools. Developed a SaaS minimum viable product.
Technologies: jQuery, Mocha, Grunt, AngularJS, Node.js, SaaS, APIs, API Integration, REST, RESTful Services, Integration, Leadership, Front-end, Minimum Viable Product (MVP), JavaScript, CSS, Full-stack, Back-end, Web Development, CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Software Architecture, Project Consultancy, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Software Engineer and Front-end Lead

2014 - 2014
PSTech
  • Designed front-end architecture. Designed and implemented a suite of various components.
  • Implemented a front-end delivery infrastructure for the application.
  • Implemented and maintained a SaaS product. Created a testing framework with Jasmine.
Technologies: jQuery, Jasmine, Grunt, AngularJS, API Integration, Integration, Leadership, Front-end, Minimum Viable Product (MVP), JavaScript, CSS, Back-end, Web Development, CI/CD Pipelines, Engineering, Team Management, Engineering Management, Agile, Software Architecture, User Experience (UX), User Interface (UI), Front-end Architecture, Architecture

Software Developer

2011 - 2014
Youngculture
  • Developed and maintained features for an e-banking system.
  • Managed builds and build scripts for the development team.
  • Integrated the system with various third-party systems.
Technologies: XML, jQuery, API Integration, REST, RESTful Services, Integration, Front-end, JavaScript, CSS, Full-stack, Back-end, Web Development, CI/CD Pipelines, Finance, Engineering, Software Architecture, Front-end Architecture, Architecture

GotCourts

https://www.gotcourts.com
A social network and booking platform for tennis players and coaches that gives users the possibility to create their leagues and schedule slots for playing tennis on various surfaces and courts.

SaaS Platform for Device Managment

A SaaS product for managing user devices for clients with large amounts of vendor products. It helps admins manage and deploy an update, as well as provision, configure and manage a large number of vendor products deployed in an enterprise environment.

Vellino

An IoT platform for managing routers as well as managing and storing router data and configurations. It uses smart router software for NLP, managing devices/users on the network, data analytics, and cross-platform UIs.

3rd-eyes

https://3rd-eyes.com/de/
Front-end architecture for a SaaS solution for banks, insurance companies, wealth/asset management companies, and independent advisors that wish to incorporate a digital offering to provide individualized investment advice to their clients.

Tele-ID

A HIPAA-compliant platform for managing and connecting users (such as patients, doctors, and facilities) in order to provide initial checkups easier and faster, especially for users in healthcare shortage areas.

WABI

We developed a platform for connecting and managing creative people, online courses, and video streaming. People could connect, subscribe, create communities, and exchange knowledge and experiences.

VirtualConnection - CFF

A streaming and video chat platform that will enable people with cystic fibrosis to connect, share their experience, improve their quality of life, and stay up to date with the latest breakthroughs in the field.

SmartSlot

A platform/framework for the development of slot games for browsers/mobile devices and implementation of rich slot games based on the framework.

FEATURES
• Integration with third-party casinos and providers.
• Custom deploy and release for different clients.

Gravity CX

https://www.gravitycx.io
A Saas application for managing a contact center based on the Twilio Flex platform. It is a multi-tenant and multi-plugin architecture. The software helps you deploy the Twilio Flex contact center in days, not months. We added robust support for managing users and contacts. Added custom solution over the Twilio flex routing so clients can easily configure with pinpoint precision what an agent should get as a pending task. There is support for canned responses so that agents can be more productive. Many third-party integrations for SSO providers, CRM solutions, and more.

Languages

SQL, JavaScript, SCSS, TypeScript, CSS, HTML, GraphQL, Sass, HTML5, CSS3, XML, PHP, Java, C++, Pascal, MIPS

Frameworks

Angular, AngularJS, Express.js, Bootstrap, PixiJS, Hapi.js, Angular Material, Jasmine, React Native, Redux, Material UI, Electron, Ionic, NestJS, Next.js

Libraries/APIs

Chai, Highcharts, React, Node.js, MobX, Formik, Yup, Google Maps SDK, jQuery UI, jQuery, WebGL, Web Audio API, Lodash, WebRTC, GSAP, Vue, Google API, Twilio API, Twilio Sync API, Stripe

Tools

Grunt, Spine, TokBox, Sequelize, MySQL Workbench, Mocha, PhpStorm, Karma, Figma, Git, Animatron

Paradigms

REST, Agile, Functional Programming, Object-oriented Programming (OOP), Agile Software Development, Management

Platforms

GreenSock Animation Platform (GSAP), Linux, Ubuntu Linux, MacOS, Twilio, Amazon Web Services (AWS), Heroku, Software Design Patterns

Other

Sprites, API Integration, RESTful Services, Integration, Front-end, Minimum Viable Product (MVP), Full-stack, Back-end, Web Development, Styled-components, CI/CD Pipelines, Engineering, Software Architecture, Project Consultancy, Front-end Architecture, Architecture, Cordova, SaaS, Natural Language Processing (NLP), Internet of Things (IoT), Slots, Remote Team Leadership, Team Leadership, GPT, Generative Pre-trained Transformers (GPT), APIs, Leadership, OAuth, Single Sign-on (SSO), Finance, Team Management, Engineering Management, User Experience (UX), User Interface (UI), Serverless, Twilio Flex, Vonage, Vonage Messages API, Vonage Verify API, Vonage Video API, Vonage Voice API, Vonage SMS API, Software Design, Software Development, System Design, Expert Systems, Algorithms, Networks, Signal Processing, Electrical Engineering, Very-large-scale Integration (VLSI), 2D Games

Storage

SQLite, Redis, MongoDB, MySQL, PostgreSQL, Google Cloud, Databases

2006 - 2013

Bachelor's Degree in Computer Science

University of Belgrade - Belgrade, Serbia

FEBRUARY 2020 - PRESENT

API Partner Voice

Vonage

FEBRUARY 2020 - PRESENT

API Partner Video

Vonage

FEBRUARY 2020 - PRESENT

API Partner SMS/Verify

Vonage

FEBRUARY 2020 - PRESENT

API Partner Messaging

Vonage

FEBRUARY 2020 - PRESENT

The Fundamentals of Twilio Voice

Twilio

FEBRUARY 2020 - PRESENT

Twilio Platform Certifications for Partners

Twilio

FEBRUARY 2020 - PRESENT

Twilio The Fundamentals of Messaging at Scale

Twilio

FEBRUARY 2020 - PRESENT

Twilo Flex for Partners

Twilio

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