Simera Professional Key (SPK)

Nelson R

Chile

Chief Technology Officer

$ 1,000/month

10+ yrs exp

With a solid background in customer relationship management and problem solving, I have excelled in my ability to develop innovative strategies at Banco Santander, Tradisca C.A, and as a freelance professional. Our focus at Banco Santander resulted in the implementation of creative solutions that significantly strengthened customer interaction and service efficiency. Now, as a freelance professional, I continue to expand my skills in CRM, fostering collaboration and agility in project management…

Skills

  • Agile
  • Agile Project Management
  • AngularJS
  • AWS
  • Bash
  • CI/CD
  • CSS
  • CSS3
  • Docker
  • Git
  • GitHub
  • Hibernate
  • HTML
  • HTML5
  • Interaction Design
  • iOS Development
  • Java
  • JavaScript
  • Jenkins
  • Jira
  • jQuery
  • Junit
  • Kanban
  • Kubernetes
  • Linux
  • Machine Learning
  • Management
  • Mobile Development
  • MongoDB
  • MySQL
  • PHP
  • PostgreSQL
  • Problem Solving
  • Product Management
  • Project Management
  • Python
  • React
  • Redis
  • Salesforce
  • Salesforce Administrator
  • Scrum
  • Selenium
  • Self-Motivated
  • Spring Framework
  • SQL
  • Switches
  • TCP/IP
  • TDD
  • Team Management
  • Teamwork
  • Terraform
  • Time Management
  • Typescript
  • Unit Testing
  • Web Development
  • Windows
  • Wordpress
  • JavaScript ES6
  • .NET Framework
  • Active Directory
  • Angular
  • API Integration
  • BackEnd Developer
  • Bitbucket
  • Case Management
  • Cucumber
  • Data Management
  • Database Management
  • Digital Project Management
  • Django
  • Django Rest Framework
  • Eclipse
  • Executive Director
  • Front Frameworks
  • Full Stack Developer
  • GCP
  • GitLab
  • GraphQL
  • iOS App Development
  • Jest
  • JNET Framework
  • JSON
  • JSP
  • Mac OS
  • Machine Learning/ML
  • MacOS
  • Maven
  • Microsoft Office 365
  • Microsoft Office Suite
  • Microsoft Power Apps
  • Microsoft Teams
  • Mockito
  • Pandas
  • Phyton
  • Postman
  • Production Management
  • Property Management
  • ReactJS
  • RESTful APls
  • SDLC
  • Software Developer
  • Springboot
  • Teamviewer
  • TeamWorks
  • Test Rail
  • Testrail
  • VueJS
  • Wed Development
  • Windowns
  • Windows 10
  • Written Communication
  • Verbal Communication
  • Problem-Solving
  • Python/R
  • Mobile App Development
  • RESTful APIs
  • Front-end Frameworks
  • WordPress CMS
  • SQL Database Management
  • React.js
  • Frontend Frameworks
  • Team Work
  • CICD
  • process management
  • Active listening
  • Project Manager
  • Social Project Management
  • Project managment
  • Spring
  • project management tools
  • Python3
  • FastAPI
  • Microsoft Office
  • Quick learner
  • Time Management
  • Analytical and Problem -Solving Skills
  • Project Management
  • Git
  • Analysis and project management
  • Time managment
  • team development
  • project mnangement
  • Probelm Sloving
  • Legal Project Management
  • Problem-Solving
  • Time Management,
  • Ability to work independently and as part of a team
  • English to spanish translation
  • active learning
  • Customer Relationship Management (CRM) Tools
  • Time mangament
  • spring security
  • Written and Verbal Communication
  • Mahcine Learning
  • self motivated
  • Sales KPIs and Customer orientation
  • Ability to adapt
  • CSAT
  • Problem-Solving:
  • Problem-Solving
  • Integration
  • project managmenet
  • Problem-solving.
  • Time-Management
  • Self--motivated
  • machine learning
  • Paython
  • XR Development
  • internet
  • Java.
  • data entry and record keeping
  • Team Work
  • Application Support Manager
  • Management
  • Management
  • Management
  • Management
  • Hybrid Project Managerment
  • IT Project Management
  • database managemnt
  • PMO and Project Management

Nelson R

Chile

Chief Technology Officer

$ 1,000 /month

10+ yrs exp

With a solid background in customer relationship management and problem solving, I have excelled in my ability to develop innovative strategies at Banco Santander, Tradisca C.A, and as a freelance professional. Our focus at Banco Santander resulted in the implementation of creative solutions that significantly strengthened customer interaction and service efficiency. Now, as a freelance professional, I continue to expand my skills in CRM, fostering collaboration and agility in project management…

Skills

  • Agile
  • Agile Project Management
  • AngularJS
  • AWS
  • Bash
  • CI/CD
  • CSS
  • CSS3
  • Docker
  • Git
  • GitHub
  • Hibernate
  • HTML
  • HTML5
  • Interaction Design
  • iOS Development
  • Java
  • JavaScript
  • Jenkins
  • Jira
  • jQuery
  • Junit
  • Kanban
  • Kubernetes
  • Linux
  • Machine Learning
  • Management
  • Mobile Development
  • MongoDB
  • MySQL
  • PHP
  • PostgreSQL
  • Problem Solving
  • Product Management
  • Project Management
  • Python
  • React
  • Redis
  • Salesforce
  • Salesforce Administrator
  • Scrum
  • Selenium
  • Self-Motivated
  • Spring Framework
  • SQL
  • Switches
  • TCP/IP
  • TDD
  • Team Management
  • Teamwork
  • Terraform
  • Time Management
  • Typescript
  • Unit Testing
  • Web Development
  • Windows
  • Wordpress
  • JavaScript ES6
  • .NET Framework
  • Active Directory
  • Angular
  • API Integration
  • BackEnd Developer
  • Bitbucket
  • Case Management
  • Cucumber
  • Data Management
  • Database Management
  • Digital Project Management
  • Django
  • Django Rest Framework
  • Eclipse
  • Executive Director
  • Front Frameworks
  • Full Stack Developer
  • GCP
  • GitLab
  • GraphQL
  • iOS App Development
  • Jest
  • JNET Framework
  • JSON
  • JSP
  • Mac OS
  • Machine Learning/ML
  • MacOS
  • Maven
  • Microsoft Office 365
  • Microsoft Office Suite
  • Microsoft Power Apps
  • Microsoft Teams
  • Mockito
  • Pandas
  • Phyton
  • Postman
  • Production Management
  • Property Management
  • ReactJS
  • RESTful APls
  • SDLC
  • Software Developer
  • Springboot
  • Teamviewer
  • TeamWorks
  • Test Rail
  • Testrail
  • VueJS
  • Wed Development
  • Windowns
  • Windows 10
  • Written Communication
  • Verbal Communication
  • Problem-Solving
  • Python/R
  • Mobile App Development
  • RESTful APIs
  • Front-end Frameworks
  • WordPress CMS
  • SQL Database Management
  • React.js
  • Frontend Frameworks
  • Team Work
  • CICD
  • process management
  • Active listening
  • Project Manager
  • Social Project Management
  • Project managment
  • Spring
  • project management tools
  • Python3
  • FastAPI
  • Microsoft Office
  • Quick learner
  • Time Management
  • Analytical and Problem -Solving Skills
  • Project Management
  • Git
  • Analysis and project management
  • Time managment
  • team development
  • project mnangement
  • Probelm Sloving
  • Legal Project Management
  • Problem-Solving
  • Time Management,
  • Ability to work independently and as part of a team
  • English to spanish translation
  • active learning
  • Customer Relationship Management (CRM) Tools
  • Time mangament
  • spring security
  • Written and Verbal Communication
  • Mahcine Learning
  • self motivated
  • Sales KPIs and Customer orientation
  • Ability to adapt
  • CSAT
  • Problem-Solving:
  • Problem-Solving
  • Integration
  • project managmenet
  • Problem-solving.
  • Time-Management
  • Self--motivated
  • machine learning
  • Paython
  • XR Development
  • internet
  • Java.
  • data entry and record keeping
  • Team Work
  • Application Support Manager
  • Management
  • Management
  • Management
  • Management
  • Hybrid Project Managerment
  • IT Project Management
  • database managemnt
  • PMO and Project Management

Chief Technology Officer

topcasinorewards.com
January 2025 - present

topcasinorewards.com provides an online casino experience. Conducted code reviews and provided mentorship to junior engineers. Developed automated testing frameworks to ensure code quality and streamline the development process. Collaborated with designers to implement front-end enhancements for a better user experience. Implemented production pipeline for build and deployment phases. Led and managed a team, delegating tasks, ensuring clear communication, and fostering collaboration to achieve project goals and deadlines.

Python Developer

Met Life
June 2024 - present

Developed and optimized a Django-based claims processing system to automate claim validation, fraud detection, and approval workflows, ensuring seamless integration with MetLife’s backend infrastructure. Designed and implemented data pipelines using Python, Pandas, and SQL to handle large-scale structured and unstructured insurance claim data, improving processing speed by 40%. Built and maintained RESTful APIs using Django REST Framework (DRF) and FastAPI to enable secure communication between internal services and external third-party integrations. Integrated and optimized PostgreSQL and MongoDB queries, ensuring efficient storage, indexing, and retrieval of policyholder data, claims history, and underwriting risk assessments. Automated claim validation processes by deploying machine learning models (Scikit-learn, TensorFlow), enhancing fraud detection accuracy by 30% and reducing manual review efforts. Developed authentication and authorization mechanisms using JWT and OAuth to enhance API security and compliance with insurance industry standards. Designed CI/CD pipelines with Git, Docker, Jenkins, and Terraform, streamlining deployments and minimizing downtime for backend services.

Software Developer

BNY MELLON
November 2023 - present

Designed and developed high-performance applications using Java and J2EE design patterns, including Session Facade, Front Controller, and Data Access Object (DAO) patterns, ensuring modularity and scalability. Created custom APIs and reports using core Java APIs and frameworks, implementing complex business logic and report generation to meet client requirements. Developed dynamic web applications using JSP, JavaBeans, and Servlets, designing user-friendly navigation systems and ensuring seamless communication between the presentation and business layers. Implemented robust database interactions using JDBC, prepared statements, and SQL queries, as well as stored procedures, to handle complex data operations and transactions efficiently. Ensured application reliability by designing and implementing common services such as exception handling and logging, promoting maintainability and robustness in the codebase. Collaborated in application testing and documentation by reviewing UML design models, creating release notes, and maintaining standard reports to ensure transparency and quality delivery. Contributed to DevOps migration and automation processes for Build and Deploy systems, enabling seamless integration and delivery of high-quality software. Configured and optimized Jenkins infrastructure by setting up Jenkins Master, adding necessary plugins, and scaling the environment by adding slaves to support agility and scalability in CI/CD pipelines. Deployed Elastic Load Balancer (ELB) in AWS to ensure high availability, scalability, and fault tolerance for production-grade systems. Collaborated closely with developers in Agile environments to identify and resolve defects early in the SDLC, recording and tracking defects using JIRA until resolution.

Software Engineer

joindawraty.com
November 2023 - present

joindawraty.com offers educational courses, instructors, and AI tools to medical students in the Middle East. Designed and built multiple large-scale projects involving AI from back-end to front-end. Converted web-based projects for mobile development (iOS & Android). Led end-to-end product development lifecycle, from concept to development, staging, and production. Collaborated with international teams to design product features for different languages and countries. Developed a credit system to incentivize new user registrations and additional purchases.

Full-Stack Developer

Percent Apparel
February 2022 - June 2023

Integrated Shopify API services for a full custom front-end rework. Streamlined development workflow with GitHub repositories, coding standards, and pull requests.

Software Developer

DELL TECHNOLOGIES
October 2021 - October 2023

Leveraged Spring Boot & Spring Framework to design and develop scalable backend services, utilizing Inversion of Control (IoC) for dependency injection and Aspect-Oriented Programming (AOP) to implement cross-cutting concerns like logging. Enhanced data retrieval efficiency by implementing multiple caching strategies to optimize product data fetching from the database. Designed and developed RESTful web services to interact with existing APIs, enabling seamless data integration in JSON format for the customer interface. Managed backend data persistence using the Hibernate ORM framework, ensuring efficient transactions and data handling in services like gift-composite-service and gift-core-service. Implemented MongoDB to store and manage non-relational data, such as goods information, leveraging NoSQL capabilities for flexible data modeling. Provided cloud-based file storage solutions using AWS S3, improving file loading performance and enhancing the overall user experience. Developed a file library feature to optimize file loading performance, ensuring faster access and improved system responsiveness. Ensured robust API testing by utilizing Postman to validate workflows, verify functionality, and monitor the impact of new features on the application. Implemented cross-cutting concerns such as gift history logging using AOP, ensuring consistency and maintainability across the application. Streamlined dependency management using Spring Framework's IoC container, promoting loose coupling and testable code.

Senior Full Stack Developer

Multiplan Corporation
April 2021 - present

Worked on designing, and building multi-tier web-based client-server applications using enterprise software applications using Java 17, Spring Boot, React 18 and SQL Server. Designed and developed RESTful APIs for various modules of the project using Spring Boot and Hibernate ORM. Developed end-to-end applications and implemented the RESTful web services using Spring Boot, Spring MVC, Spring Data, and Spring Security. Implemented the data access layer (DAL) using Spring Data, JPA repositories and Hibernate ORM. Utilized microservices architecture with Spring Boot-based services interacting through a combination of REST and Apache Kafka message brokers and worked with Kafka clusters using Zookeeper. Used PostgreSQL's advanced features, such as stored procedures and triggers, to improve application performance and scalability. Implemented Docker-based containerization of applications for efficient deployment and management on Openshift. Utilized Jenkins for continuous integration, in which all development activity is integrated, and Docker is utilized to deliver the application to the Amazon Web Services (AWS) environment. Configured Jenkins to integrate with Git repositories, Maven builds, and Docker containers to support a fully automated CI/CD workflow. Collaborated with development teams to prioritize and implement enhancements and bug fixes based on production support insights, driving continuous improvement and reliability of Java applications in production environments. Designed and implemented dynamic and interactive user interfaces for web applications using React, leveraging its component-based architecture and virtual DOM to enhance the user experience.

Python Developer

Experion Technologies
October 2020 - December 2022

Developed and maintained a high-performance chatbot backend using Django and FastAPI, enabling real-time NLP-driven interactions with web and mobile applications. Designed and optimized database schemas in PostgreSQL and MongoDB, improving data retrieval efficiency for chatbot interactions, user analytics, and feedback storage. Implemented machine learning models using Scikit-learn and TensorFlow for intelligent query recognition and response prediction, enhancing chatbot accuracy by 25%. Deployed chatbot services on AWS (EC2, Lambda, S3) and containerized applications using Docker and Kubernetes, ensuring scalability and fault tolerance. Integrated NLP pipelines with spaCy and NLTK, allowing context-aware chatbot responses and enhanced user interaction understanding. Followed Agile methodologies (Scrum, Jira) and utilized Git-based version control (GitHub, GitLab) to ensure seamless development, collaboration, and deployment cycles.

IT Engineer

Walgreens
June 2020 - present

Diagnose/troubleshoot and resolve software/application issues using Remedy ITSM (Ticketing System), minimizing downtime and ensuring uninterrupted operation of the prescription fulfillment application, Intercom+, to support smooth pharmacy operations. Participated in pilot software rollout meetings and knowledge transfers to align with business requirements and updates; initiated CRQ (Change Request) tasks to ensure readiness of pharmacy operations and facilitate smooth deployment into production. Collaborated with pharmacy staff, stakeholders, project teams, developers, system administrators, and other infrastructure engineers to troubleshoot and resolve advanced application and server issues, capturing and analyzing log files and system metrics to support complex technical troubleshooting; participated in critical command center/MIM calls for service restoration, and opened PBIs (Product Backlog Item), provided test case feedback, and suggested enhancements to improve operations, user experience, and productivity. Manage local pharmacy servers, ensuring system health, uptime, and network performance for high availability; maintain data integrity by addressing database corruption and file system issues, restoring critical information to minimize downtime; apply local updates to records in compliance with healthcare data standards; and facilitate the transfer of data files and records during store transfers between central and local servers. Acted as a subject matter expert for internal pharmacy applications, diagnosing and analyzing user-reported issues while adhering to SLAs (Service Level Agreements) to quickly identify root causes. Ensured optimal functionality of workstations, scales, and image scanners for accurate medication dispensing, providing timely updates on resolution progress, and implementing temporary workarounds to minimize operational disruptions until permanent solutions were deployed. Support onboarding of new staff by providing training on procedures, software, and technical assistance, enhancing team performance, and speeding up the learning curve.

Java Backend Developer

UBER
January 2020 - September 2021

Developed and maintained a Multi-tier Web Application using Agile methodology with SCRUM and iterative development practices to ensure rapid delivery and high-quality software. Engineered robust backend services using Java, Spring Boot, and Spring Security, implementing role-based access control and single sign-on (SSO) for secure and authorized application access. Managed database interactions using JPA for Java object-relational mapping and SQL for querying, inserting, and updating data, ensuring efficient data handling and retrieval. Designed and implemented scalable microservices architecture using Spring Boot, enabling seamless service interaction through RESTful APIs, and adhered to modern architectural patterns. Implemented continuous integration and delivery (CI/CD) pipelines using Jenkins, Maven build lifecycle, and GIT version control to automate build, test, and deployment processes. Ensured end-to-end testing of RESTful APIs using Postman and wrote comprehensive JUnit test cases to validate functionality, performance, and reliability. Monitored and optimized application performance by analyzing Log4J error logs, debugging issues, and ensuring system reliability in production environments. Automated job monitoring and system tasks by creating Unix shell scripts, improving operational efficiency and reducing manual intervention.

Developer

Walgreens
December 2019 - June 2020

Worked with IVR technologies/Customer Engagement. Tested call flows using the Genesys Voice Platform, ensuring alignment with user stories and technical requirements. Actively participated in all phases of the Agile software development process, from story sessions and sprint planning to sprint rollouts. Collected, analyzed, and understood user stories for the RxRefillIVR project, contributing to the design and development process. Coordinated with nearshore teams to ensure timely delivery of identified work objects and tasks. Contributed to UI code analysis, strategy, and design, reviewing code, and testing to enhance user experience and maintain quality standards.

Senior Java Developer

TRC Companies
August 2018 - March 2021

Designed and developed scalable microservices applications using Spring Boot, focusing on high availability and performance. Utilized multi-threading and Completable Futures to design asynchronous, non-blocking applications that handle large-scale data processing with minimal latency. Followed clean code principles and SOLID design principles to ensure that code is maintainable, scalable, and testable. Implemented Kafka for building event-driven systems, ensuring efficient and fault-tolerant data processing across multiple services. Designed and developed unit and integration tests using JUnit and Mockito, maintaining a high test coverage to ensure high-quality, bug-free releases. Leveraged Spring Security, OAuth 2.0, and JWT to secure REST APIs and implement robust user authentication and authorization in microservices. Integrated Docker for containerization, simplifying deployment and scaling of microservices across different environments. Managed deployment and orchestration using Kubernetes and OpenShift, improving scalability and deployment speed. Integrated Jenkins to automate the build, testing, and deployment pipeline, increasing the development velocity and reducing time to production. Optimized PostgreSQL queries and schemas for high-performance data handling, reducing query times. Built and maintained React applications with React Hooks, Redux Toolkit, and TypeScript, delivering a dynamic, responsive user interface. Worked with React Query and Axios to handle API calls efficiently, improving performance and error handling on the client side. Used Webpack and Babel to bundle and transpile JavaScript and TypeScript code, optimizing the development and production build process.

Customer services Specialist

Santanders Bank´s Chile
January 2018 - January 2021

Customer Services and Call Center Customer Care Cross Sale of Bank´s products, i.e. insurance and Personal Loans

Associate Java Developer

Cognizant
March 2016 - July 2018

Designing, coding, and testing web applications using Java 8, Spring Boot, SQL Server, and Java Persistence API. Designed and developed Microservices based business components and RESTful service endpoints using Spring boot. Implemented MVC design pattern using Spring Framework. Used DAO pattern to handle the interaction with SQL Server and hibernate as ORM to map Java classes to database tables. Used Spring Framework for Authentication and Authorization and ORM components to support the Hibernate tool. Involved in the integration of the Front-End web interface with the Spring MVC, Angular, HTML5, CSS3 and jQuery. Involved in coding using Java 8 and Spring to develop features from end to end, used Java collection API’s. Designed and developed Microservices business components and RESTful service endpoints using Spring boot. Used Rabbit MQ to send messages across applications for data processing. Used Jenkins as Continuous Integration tool to deploy Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack. Developed RESTful API's, which takes in an HTTP request and produces the HTTP response in JSON Format using micro services. Used the Maven build life cycle to build the application and deployed into JBOSS application server. Created Stored procedures using SQL for data modification (Using DML insert, update, delete) in SQL Server. Used GIT for version control tool and Spring Tool Suite (STS) for IDE. Actively participated and provided feedback in a constructive and insightful manner during weekly Iterative review meetings to track the progress for each iterative cycle and figure out the issues. Creating and executing unit, integration testing using Mockito, Junit framework.

Passenger Service Lead

Prospect Airport Services
November 2013 - March 2020

Streamlined passenger assistance protocols and coordinated with multiple airlines to minimize delays, enhancing overall terminal efficiency and passenger satisfaction. Built partnerships with airline staff and airport personnel to support passengers with special needs. Resolved real-time issues with airline agents to maintain smooth operations. Trained new hires to meet passenger needs and uphold service standards. Analyzed assistance patterns to optimize service routing and resource allocation. Led cross-functional teams to enhance assistance services and strengthen stakeholder relationships.

Translation Project Coordinator

Tradisca C.A
March 2002 - March 2025

Supervise and manage technical translation projects, supervise and manage Copywriters

Smart Scores

Communication
80
Role Fit
95
Adaptability
70
Problem-solving
50

Smart Skills

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