Front End Technical Lead

Nikola Kapetanovic

*******@*****.*** 647-***-****

Professional Summary

With over thirty years of industry experience, I specialize in emerging technologies, distributed computing, and component-based architecture. My expertise includes system architecture and design, implementing REST services, and integrating with third-party components like Reuters. I am proficient with development tools such as Visual Studio, Spring Tool Suite, IntelliJ, GIT, and Maven. Additionally, I have extensive experience in application server configuration, deployment, load balancing, and distributed memory configuration.

Technical Summary

Technology:

Angular 14, REST services, Spring boot, Redux/NgRx (14.3.3), Web Services, JAXB, JAX-RS, JAX-WS, Struts, Tiles, Java EE, JPA, JTA, Hibernate, TopLink 3.6, JSP, JQuery, JSTL, JMS, VXML (Voice over XML), AWS

Cache Management:

Oracle Coherence Cache, Hazelcast

Persistence/ORM (Object/Relational Mapping)

Hibernate, TopLink

Application Server:

WebLogic, Docker

Database:

Oracle 8, 10, 11g, PostgreSQL 14

Build tools:

Maven, ANT 1.5.3, Angular CLI

Repository:

Bitbucket, CVS, VSS, SVN, GIT

IDE:

Spring Tool Suite, Visual Studio, WebLogic Workshop, IntelliJ, Eclipse

Methodology/Project management:

Professional Experience

Agile/Scrum, JIRA

04/2022 – Present

Purolator

Technical lead/full stack

Lead the Full Stack development team (4 developers) of the API Portal project, providing Purolator clients with a centralized registration and shipping experience for courier and freight accounts. Successfully registered clients receive development keys to access and integrate Purolator’s APIs with their products, offering a unified web services solution tailored to customer needs.

Architected and developed the Angular UI framework (angular 14.2.12) using NgRx/Redux (14.3.3) to de-couple front end components from backend communication and state management.

Used Rxjs libraries for async event management by Observables.

Created and maintained shared libraries for use across the project, ensuring consistency and reusability.

Developed backend REST APIs for service and repository communication, utilizing a PostgreSQL database.

Utilized Hibernate (ORM) to map Java objects to database tables, facilitating efficient data management.

01/2021 – 12/2023

CITI bank

Technical lead/full stack

Technical lead for the development of the front-end application allowing the processing of trade tickets depending on the employee’s role. The team was composed of 2 front end developers and 3 backend developers.

The application was developed in angular, connecting to REST APIs.

The UI rendering consisted of role-based fields and validations configured in a JSON files, allowing quick turn around for any changes in the UI.

10/2019 – 02/2021

International Financial Data Service

Architect/Technical lead/full stack

Architect and lead developer on the BlindQC project allowing IFDS staff to place trade tickets in the system. The system is composed of an Angular front end interacting through REST APIs to a Spring Boot backend, attached to a Postgres database.

Developed the Angular front end using Angular 7 in conjunction with an NgRx store allowing management of the state.

Developed the Spring Boot backend application interacting with the front end through REST service APIs. Used JPA for querying and persisting data to a PostgreSQL 10 database through services and repository.

Developed a threaded batch process interacting with the IFAST servers to match and verify trades submitted by the users.

The team was composed of two developers

07/2008 – 04/2020

Invesco/AIM Trimark

Project lead/architect

Project lead/architect on several financial projects, the latest allowing the Advisors to enroll Investors electronically by sending them an invitation through email. After answering several Risk Tolerance Questions, the Investor would be presented with a Docusign form to be signed electronically. Front end was developed in Angular with state management using Redux (Effects, Reducers, Selectors). The front end communicated to the backend through REST web service calls. Backend was developed using Spring Boot framework utilizing Hibernate and Hazelcast for persistent and cache management.

Worked in Agile/Scrum methodology with Business Analyst and Scrum master to prepare and review epics/user stories for the development of different functionality of the application.

Mentored junior members of the team.

Lead architect of the REST web services providing micro services to the front-end layer.

Senior developer in the implementation of Angular components used by the application.

Lead architect/developer for the design and implementation of the data access layer using Hibernate Object relational mapping.

Tuned the persistent layer for speed.

Lead architect/developer for the designed and implementation of the relational database tables supporting the project.

Lead architect/developer of the Coherence cache, allowing in memory and distributed cache.

Lead developer on multiple Invesco projects using Spring, Tiles, REST services, JAVA EE.

01/2008 – 07/2008

Ministry of Transportation (Toronto)

Project Lead (consultant)

Worked with Business Analyst, Application/Solution Architect and Data Modeller to prepare design models using Rational Rose (Use case/Class/Sequence/State diagram).

Translated the use cases into system design documents.

Prepared technical specification for the development team. Facilitated review sessions to ensure the deliverables meet Ministry and industry standards.

Developed/enhanced Ministry systems using JAVA EE (Java, EJB, JSP, Struts), XML (DOM, SAX), Web Services, WebLogic, Toplink (ORM), Oracle, Eclipse.

Developed programs that use existing communication framework to access the Legacy System and retrieve requested data in accordance with functional and technical specifications.

Assisted the project manager in assigning development task to team members, tracked progress/variance to advise him of any schedule delay, risk and issues.

Developed a work plan for the development team.

Provided effective knowledge transfer to Ministry staff.

05/2007 – 12/2007

Invesco (Toronto)

Java/JAVA EE /Portal senior consultant

Responsible for the integration of the IFDS Web Service (International Financial Data Service) into the Invesco software architecture.

Designed and implemented a Session façade layer encapsulating the business functionality associated with the retrieval of data through the IFDS Web Service. The EJB layer facilitated the component life cycle and transaction management.

Implemented a DAO layer that encapsulated the Web Service communication and data translation between the two systems (Invesco and IFDS). Value objects, representing Invesco’s requests were translated into XML beans and sent to the IFDS Web Service.

Re-designed the client account section of the portal, integrating the new data schema provided by IFDS. Simplified the design and implementation of JSP pages by implementing new tag libraries.

Implemented business delegates providing members of the team with common access to business logic.

Provided support and mentoring to junior members of the team.

Interfaced with members of the IFDS team to analyze and design the XML schema required for new APIs.

10/2006 – 05/2007

CGI-Bell Mobility (Toronto)

Java/JAVA EE /Portal senior consultant

Invesco (Toronto)

Java/JAVA EE /Portal senior consultant

ESI Canada (Toronto)

Java/JAVA EE System Architect

Ontario Ministry of business cluster (Toronto)

Java/JAVA EE Consultant

Ontario Ministry of Transportation (Toronto)

Project Lead

Accenture (Toronto)

Java/JAVA EE Consultant

Chubb Security (New Jersey)

Java/JAVA EE Consultant

San Diego Data Processing Center (San Diego)

Technical lead/JAVA EE Software Consultant

Cayenta.com/Titan Software (San Diego)

Java/JAVA EE Consultant

Canadian Imperial Bank of Commerce (Toronto)

Java Consultant

Scotia McLeod Capital Market (Toronto)

Senior Programmer Analyst

Toronto Dominion Bank (Toronto)

System Analyst

Perle Systems (Toronto)

Project Leader

Education

BA.SC Electrical Engineer

University of Ottawa, Ottawa, Ontario, Canada

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