Software Engineer Technical Lead

Juan Atto

Mobile: ***-**********

E-Mail: ****.***********.***@*****.***

Software engineer, architect, technical lead, and back-end and core developer with experience of various projects and companies. Experienced in designing and implementing solutions for such as legacy systems, microservices, cloud-native architecture, event-driven architecture, DDD, hexagonal architecture, and distributed systems.

I have experience of working with frameworks (Spring, ORM, etc.), as well as relational and NoSQL database modelling. SOAP, RESTful and, GraphQL services, messaging (Kafka, RabbitMQ, SQS, SNS, and AWS MQ), and distributed systems. I have extensive experience with Azure and AWS in multi-region and high availability, as well as with Kubernetes, Helm Charts, Docker, Azure DevOps, and pipelines. CI/CD, and integration and unit testing (Junit, Mockito).

Extensive experience of managing local and remote teams and tasks. Experience of working on multiple projects, troubleshooting, and optimising performance in production environments. I am also experienced in definitions and documentation. Academic data

2013: Postgraduate in Project Management

National Technological University (UTN) - Argentina 2005: Postgraduate in Administration and Pedagogical Organization in Classroom Universidad Mayor de San Andrés

Pedagogical Center for Research in Higher Education 2001: Bachelor of Computer Engineering

Universidad Mayor de San Andrés

Professional experience

Jan-2021 – Mar-2025 Technisys – Architect

Define and propose solution strategies for each client. Follow up with the client.

Delivery – Client:

Review and assign tasks to the team.

Conduct technical and code reviews with the team.

Manage product migrations or updates.

Define the entire infrastructure for the development and QA environments. Define and standardise the best development practices. Support client and team.

Feb'2017 - Dic’2020: IBM-Argentina – Software Engineer Telecom - Cablevisión

Definition Solution Architecture

Development project components

Development and testing support

Monitoring and management of integration resources. Integration between Cablevisón and Telecom

Technical documentation

ToIP Project (Cablevisión - Telecom)

Support and implementation to production.

Jan'2016 - Dec'2017: Financial Company Argentina (EFECTIVO SI) Architect and Integration

Definition Architecture and Microservice Integration. Promote the reuse of services.

Support and Control Incidences in Production

Manage the infrastructure for the life cycle implementation. Prepare technical documentation

Review and validation of Software Factory developments Product: Tarjeta Naranja y Nevada (Banco Galicia)

Technology used:

Hibernate - Oracle, DB2

Spring, SOAP, FULL REST, JMS MQ Messaging, JNDI, Threads Webphere

Mar'2015 - Dec'2015: GestionIT - Architect

Application migration:

Applications from Tomcat to WebLogic 12

Database of SqlServer to Oracle 11g

Definition architecture Web Services Soap (dynamic) Design by Spring Batch (Job)

Definition of service integrations

Spring Integration and Web Services Rest

Production Support

Estimation of tasks, assignment of tasks.

Technology used:

Spring Web Services Soap / Rest, Batch Jobs, Integration Concurrence - Thread

JMS Avtive MQ messaging

Sep'2013 - Feb'2015: Province Group – Software Engineer Design and definition of the application architecture - Development of the core Design and data modeling

Interfaces with existing system (Universe) queuing of JMS Messages (Active MQ) Analysis, Development, Testing, Production Implementation. Production Support

Technology used:

Hibernate, Oracle

JSF, PRIMEFACES,

JMS Active MQ, Rest Full, json, JaxB, XML, XSLT

Oct'2010 - Ago'2013: INDRA (Argentina) – Software Engineer CEICOM - Developer Java SR Developer

Production Support

Evolutionary analyst and maintenance

FlexBuilder 3 (Cairngorm Framework)

Maven, JBOSS, LOG4J

J2EE, JAVA, Hibernate, Spring, JSP

MAPFRE (Argentina) - Java SR Developer Analyst

Project implementation Vida Obligatoria

Project implementation Mathematical Reserve

PL-SQL, JAVA, JSP, XML, Ireports.

Ago'2008 - Sep'2010: HP Argentina - Java Developer Analyst Ternium Siderar - Java Developer Analyst

Manage and maintain the service available

Unix HP-UX, unix scripts

Java, J2EE, Oracle, PL-SQL.

Jun'2007 - Jul'2008 Gefco Argentina - Developer Java Developer Relieve, Analysis and development

Visual Basic, SQL, PL / SQL.

Ene'2004- Mar'2007: Head of Systems

Ceser Bolivia S.R.L.

Analysis and design of applications

Visual Baisc6, Visual Basic .NET, ASP .NET

Oracle Form and Report (Samsung)

Oracle 8i, SQL Server 2000

Feb'2003- Ago'2005: Instructor

Engineering and Training in Electronics and Computing (ICEI) Visual Basic 6

Oracle Form, Oracle Report, PL / SQL

Feb'2000-Dic'2001: Responsible for Internet Applications, Wiring Structure and Technical support.

UMSANet Project - Universidad Mayor de San Andrés. Ago'2000-Dic'2001: Teaching Assistant - Algorithms and Data Structures UMSA - Computer Science Degree.

C ++

: Teaching Assistant - Cybernetics II / Telematics I UMSA - Computer Science Degree.

Linux, Unix.

Trainings

May'2012: Hibernate

IT Education

Nov'2011: JAVA WEB

IT Education

Sep'2008: Oracle Tunning

CZYNE S.R.L.

May-Jun'2008: Developper Sennior Oracle

National Technological University UTN.

October 2006: Distributed J2EE Applications with Weblogic Education, Computing and Services.

April 2000: Datawarehouse with SQL DTS - OLEDB and ADO with Visual Basic UMSA - Computer Science and Wiñay Pacha Informática Languages

English: Intermediate

Portugues: Basic/Initial

Spanish - Native

Knowledge

Cloud:

AWS: VPC, EC2, ECS, ECR, ALB, NLB, EFS, EBS, EKS, RDS, S3, SQS, SNS, Lambda, CloudFormation

. AZURE: VM, Azure Devops, SQL Database, Storage-Account(File-share), SFTP, AKS, etc Operating systems:

• UNIX HP-UX, UNIX AIX

• Linux

Java:

Java-8, Java-11, Java-17

Database:

• Oracle 9i, 10g, 11g

• TERADATA

• Microsoft SQL Server 2000, 2005, T-SQL

• DB2

NoSql:

• MongoDB, Redis

Application server:

• ORACLE WEBLOGIC SERVER 12CR2, IAS R3

• WEBSPHERE 7

• JBOSS 6

• TOMCAT

• DOCKER - Containers

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