Iskren Ivanov - Resume

Iskren Ivanov

Java Expe

About Me

A highly experienced IT professional with over 18 years of dedicated expertise in Java technologies. Demonstrates a proven track record in leading the full lifecycle of application development, from initial design through to deployment and integration, for leading organizations. Possesses a strong drive to excel in a dynamic and collaborative startup-ish environment, leveraging deep technical knowledge to drive innovation and deliver exceptional results.

Residence . . . . . Bulgaria
Address . . . . . 1407, Sofia

Services Delivered

Custom Web Application Development

Expertise in Java to create robust, scalable web applications customized to meet business requirements.

API Development

Proficient in designing and building RESTful APIs for seamless integration with web applications and third-party services.

Database Design and Development

Skilled in architecting and implementing databases for efficient data storage and management.

Microservices Architecture

Experienced in developing microservices architectures to enhance application scalability and modularity.

Continuous Integration and Deployment (CI/CD)

Adept at establishing CI/CD pipelines to automate testing, building, and deploying processes, enhancing development efficiency.

Code Review and Refactoring

Commitment to maintaining code quality through thorough reviews and refactoring, ensuring adherence to best practices and improved code maintainability.

Consultation and Technical Guidance

Offering expert consultation and technical advice on software architecture, design, and development to support informed technical decision-making.

Proof of Concept (POC) for Startups

Specializing in rapid, cost-effective POC development for startups to facilitate concept validation, investor attraction, and early-stage product development.

Team Building and Management

Demonstrated leadership in building and managing teams, promoting collaboration, setting clear objectives, and optimizing project workflows for success.

Partnerships

Motto

If you want to go fast, go alone; if you want to go far, go together. I can help either way.

Iskren Ivanov

Software Engineerr

Resume

Experience

Jun 2019 - Present

Freelance Java Expert

Contractico

Contributed to a diverse portfolio of startup ventures and established companies, orchestrating business requirements implementation, facilitating growth and scalability.

Delivered a fintech startup's MVP in 6 months using Spring Boot, Selenium, and PostgreSQL, fulfilling all client needs.
Turned around a year-delayed project, delivering on time and saving the client €3.3M in penalties.
Migrated a Python monolith to Java microservices for a health tech startup, enhancing scalability and efficiency

Java 21

Spring Boot

PostgreSQL

Messaging Systems

MongoDB

Selenium / WebDriver

AWS

Project Management

Mentoring

Aug 2018 - May 2019

Senior Full Stack Developer

Poker Stars

Contributed to the design and development of a back-office solution with Spring and Angular, utilized by the support agents at the world's largest poker site.

Mentored junior team members, enhancing team skills and productivity.
Advocated for SonarQube adoption at PokerStars, enhancing code quality and organizational efficiency.

Java 8

Spring Boot

Mentoring

Nov 2016 - Aug 2018

Fullstack Developer

Dreamix

Actively involved in the redesign and implementation of microservices support for the business processes system, overseeing and managing all activities of a private flights company, encompassing flight preparation, cash expenses, and ground handling.

Developed and led a POC for migrating Java monolith to microservices.
Authored a blog on the POC's success and insights, attracting over 30,000 reads, underlining its tech community impact.

Java 8

Spring Boot

Microservices

Product Architecture

Angular 2

Project Management

Jan 2015 - Nov 2016

Senior Java Developer

Luxoft

Actively participating in a back-end migration of numerous applications used in a global banking and financial services company. Conducting analysis of current system status and functionality, preparing migration plan, and developing applications for transforming vast quantities of data

My efforts led to the on-time delivery and successful migration, ensuring seamless business continuity and enhanced operational efficiency

Java 7

Spring

Hibernate

Oracle

AngularJS

WEB Technologies

Test & Quality

Feb 2014 - Dec 2014

Java Developer

Comverse

Participated in support and evolution of Business Support Systems (BSS) for the world's leading provider of TelCo business solutions. Also took part in the design and development from scratch of a Cloud Billing System for analyzing and calculating customer's expenses, rates, and taxes.

Grails

Jasper Reports

Java 7

Spring

Hibernate

PostgreSQL

Apr 2008 - Jan 2014

Java Developer

Proxiad

Contributing to the development of customized supplier and buyer solutions for the top e-invoice processing platform in Europe, ensuring tax- compliant dematerialization of invoices. The process encompasses legal data control, archiving, and validation of both incoming and outgoing invoices.

Java 7

Groovy

XML

XSL

xPath

XSL-FO

SEEBURGER BIC Mapping Designer

May 2006 - Dec 2007

Junior Java Developer

Devinition

Actively engaged in developing and testing the PwC VatOptimizer project, embracing a full agile development approach with Extreme Programming and Pair Programming techniques.

Java 5

JSP

JUnit

PostgreSQL

Selenium

Knowledge