Janko S.

Solution Architect

Belgrade, Serbia

Experience

Feb 2024 - Present
1 year 7 months

Solution Architect

Yettel.Bank

  • Developed detailed architectures and designs for various initiatives
  • Created system, context, component, infrastructure logical diagrams for bank applications
  • Demonstrated proficiency with Microservices, APIs, platform infrastructure
  • Presented application systems and technology infrastructure to Team Leaders, Project Managers and Directors
  • Monitoring of Microservices and infrastructure using Dynatrace, Argo CD and Grafana
  • Collaborated with external vendors and internal business users
May 2023 - Present
2 years 4 months

Senior Java Software Engineer| Solution Architect

JMV Solutions

  • Designed architecture and database for a career platform based on functional and non-functional requirements analysis.
  • Designed RESTful APIs with proven patterns to enhance platform functionality and user experience
  • Documented API functionalities for seamless integration and future scalability
  • Tech: UML, Java 11, Spring, Spring Boot, PostgreSQL, JIRA, Confluence
Oct 2022 - May 2023
8 months

Senior Java Software Engineer

Luxoft

  • Modernized and migrated Healthcare application to the Azure platform for a US client
  • Designed integration architecture and replaced old Oracle ADF modules with new Java and Spring ones
  • Shared knowledge with team members about application development with Oracle Application Development Framework (ADF) and best practices
  • Tech: Java 11, RESTful Services, UML, Oracle ADF, Oracle JDeveloper, IntelliJ IDEA
May 2021 - Oct 2022
1 year 6 months

Senior Solution Developer|Team Lead

Engineering Ingegneria Informatica Spa

  • Refactored monolithic application into microservices by extracting services
  • Developed a new system design and functionalities for a banking application for one of the largest banks in Europe
  • Solution based on WebSphere Application Server (WAS) using Java, Microservices and Struts framework along with JSP, jQuery and JavaScript
  • Used Agile process flow in JIRA to move tasks between activities
  • Environment: Java 8, Spring Boot, Spring JDBC, PostgreSQL, Struts, WebSphere AS, SOAP/REST, AWS, JSF, JSP, IntelliJ, Eclipse, SQL Developer, Git, Maven, JIRA
Jul 2018 - May 2021
2 years 11 months

Full-Stack Java Software Engineer|Team Lead

Profit Concepts International

  • Developed, maintained and optimized modules of a large SaaS Asset Management Solution based on Oracle Database and JEE for a US client
  • As a member of the Architecture team, designed and organized new system modules
  • Debugged complex software issues in a high-pressure environment, leading to a 20% increase in system efficiency and reliability
  • Analyzed requirements and assigned tasks to team members
  • Led a team of 4 people using Agile–Scrum methodology
  • Tech & Tools: Java 8, Spring, Spring Boot, Tomcat, Oracle DB, XML, Hibernate, PostgreSQL, JavaScript, JSF, JSP, HTML/CSS, Git, JIRA, Confluence
Jan 2018 - Apr 2020
2 years 4 months
Remote

Senior Java Software Engineer – Remote

JMV Solutions

  • Worked on Jahia CMS platform and Node.js to develop templates and AMP pages
  • Used Jahia GraphQL - JCR implementation for queries
  • Agile–Scrum methodology used
  • Tech stack: Java 8, Hibernate, Oracle DB, AWS, JavaScript, JSF, JSP, SOAP/REST, Node.js, HTML/CSS, jQuery, XSD, XSLT, XML, Docker, Maven, Eclipse, Git
Nov 2016 - Sep 2017
11 months

Senior Java Developer with Apache Camel

Forex Club

  • Developed middle-tier integration layer of a large trading application using REST web services, Spring, Spring Boot, Java, JMS
  • Designed messaging platform architecture using Apache tools: Camel as integration framework, ServiceMix as container, ActiveMQ as message broker, and Drools as BRMS
  • Agile–Scrum methodology used
  • Dev environment: Eclipse, Git, Gradle, Jira, Confluence
Nov 2015 - Oct 2016
1 year

Senior Java Software Engineer

Profit Concepts International

  • Conducted business analysis, wrote user stories, and developed presentation layer and back-end services of a retail management system for a US client
  • Full-stack development using Java, Spring MVC, OAuth2 security, Servlets
  • Developed Spring RESTful web services producing JSON and XML
  • B2B integration using EDI ANSI X12; collected PDFs from users and translated data to/from Order Entry Systems using J2EE
  • Performed data analysis and prepared reports using MS SQL Server, T-SQL, and MS Excel
Mar 2014 - Nov 2015
1 year 9 months

webMethods Developer & ARIS-BPM Consultant

M&I Systems, Co.

  • Developed web services and webMethods Flow services on the webMethods platform
  • Designed business processes with webMethods Designer
  • Connected applications and data via JMS, Integration Server Universal Messaging, web service interfaces, JDBC, XML, JSON and adapters
  • Developed business architecture for Electric Power Industry of Serbia (EPS) and subsidiaries using ARIS methodology and ARIS Business Architect for Procure-to-Pay processes
May 2012 - Feb 2014
1 year 10 months
Belgrade, Serbia

IT Solutions Consultant|Senior Software Engineer

ComTrade Group

"Technical Assistance to strengthen the institutional capacity of the Serbian Tax Administration to design efficient financial and material accounting management." Non-key expert position in EU-funded IPA project.

  • Developed business architecture and BPM; identified and suggested solutions to system integration issues
  • Reported to EU-based C-level consultants and took part in strategic planning discussions
  • Improved transparency and efficiency in public prosecution and penal system of Serbia
  • Developed a web application for justice area using Java, RichFaces, JSF, JSP, CSS and Tomcat
  • Used EMC Documentum ECM for document storage and retrieval
Dec 2008 - Apr 2012
3 years 5 months
Belgrade, Serbia

IT Quality Manager & QA Team Lead

Comtrade Group

  • Worked with cross-functional teams: SD, Sales, Marketing, Legal
  • Trained and mentored employees, leading to ISO 9001:2008/TickIT certification; managed internal audits per ISO 9001
  • Led a QA team of 6, tracking issues to ensure quality and timely delivery
Nov 2007 - Nov 2008
1 year 1 month
Belgrade, Serbia

Java Software Engineer

Comtrade Group

Central IS, real estate business application for a US client

  • Business analysis and development of a retail management system
  • Built web application with Apache Jackrabbit, JSP and RichFaces
  • Tech: Java, Hibernate, MySQL, JBoss AS, RichFaces
Apr 2007 - Oct 2007
7 months
Belgrade, Serbia

Java – Oracle ADF Developer

Fadata

  • Designed SOA for Insurance IS (INSIS) used by large insurance companies
  • Built back-end and web services using Oracle ADF BC, XML, XPath, XSD, Java, and in-house framework
  • Partially handled database design and administration
Oct 2005 - Mar 2007
1 year 6 months
Belgrade, Serbia

Java – Oracle PL/SQL Developer

IGEA d.o.o (Slovenia)–PlatoNet

Web-based application for managing GIS metadata of Maribor municipality

  • Responsible for database design, test scripts, and web pages using HTML, JSP, CSS, Struts
  • Developed PL/SQL procedures and triggers per business requirements
  • Wrote modules to access Oracle via JDBC, SQL and Java Calculation of taxes for agricultural land for Serbian Tax Administration
  • Developed Oracle ADF Business Components and PL/SQL blocks for tax calculation. Used Java, JDBC, JDeveloper, Toad.
Jan 2001 - Dec 2005
5 years
Belgrade, Serbia

ERP Consultant – Oracle Application Developer

Digit

  • Developed and maintained HR management and payroll processing applications
  • Designed database with ER models
  • Tech: Oracle Forms 6i/9i, Reports 6i/9i, PL/SQL, SQL, Oracle Database
Jan 1992 - Dec 2000
9 years
Podgorica, Montenegro

Software Developer/Team Leader

IT Department of Ministry of Defense of Yugoslavia

  • Tech: MS Windows NT 3.51/4.0, Novell NetWare, GCOS, COBOL, Clipper, SQL

Languages

Serbian
Native
English
Advanced
Russian
Intermediate

Education

Oct 1987 - Jun 1992

University of Belgrade

MSc in Computer Science · Computer Science · Belgrade, Serbia

Certifications & licenses

Kafka Fundamentals

Luxoft

ESB with Apache Camel & ServiceMix

Forex Club

Software AG webMethods - BPM, Process & Task Engine, Rules Engine, UM

M&I Systems

BPM using ARIS methodology and ARIS Business Architect

M&I Systems

Modeling Business Processes using Sybase PowerDesigner Tool

MD&Profy

ISO 9001:2008 Internal Auditor Training Course

Oracle Application Development Framework (ADF) and Business Objects

Fadata, Sofia

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