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I am a motivated and results-driven Software Engineer with over 9 years of experience designing, building, and integrating software systems across enterprise, finance, and cloud environments. I have strong proficiency in Java, Spring Boot, REST APIs, and AWS, and I enjoy modernising legacy applications and integrating complex APIs. Currently, I am based in Sydney, Australia, and actively pursuing Pega certification to enhance my skills in process automation and system integration. I am quick to adapt to new technologies and passionate about solving challenging problems and driving continuous improvement. I thrive in team settings, collaborate effectively, and continuously seek personal development opportunities. I am bilingual with native Spanish and fluent English, bringing strong communication skills and attention to detail to every project.…I am a motivated and results-driven Software Engineer with over 9 years of experience designing, building, and integrating software systems across enterprise, finance, and cloud environments. I have strong proficiency in Java, Spring Boot, REST APIs, and AWS, and I enjoy modernising legacy applications and integrating complex APIs. Currently, I am based in Sydney, Australia, and actively pursuing Pega certification to enhance my skills in process automation and system integration. I am quick to adapt to new technologies and passionate about solving challenging problems and driving continuous improvement. I thrive in team settings, collaborate effectively, and continuously seek personal development opportunities. I am bilingual with native Spanish and fluent English, bringing strong communication skills and attention to detail to every project.

Hernán Javier Izquierdo

Developer, Back-End Developer, Programmer

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I am a motivated and results-driven Software Engineer with over 9 years of experience designing, building, and integrating software systems across enterprise, finance, and cloud environments. I have strong proficiency in Java, Spring Boot, REST APIs, and AWS, and I enjoy modernising legacy applications and integrating complex APIs. Currently, I am based in Sydney, Australia, and actively pursuing Pega certification to enhance my skills in process automation and system integration. I am quick to adapt to new technologies and passionate about solving challenging problems and driving continuous improvement. I thrive in team settings, collaborate effectively, and continuously seek personal development opportunities. I am bilingual with native Spanish and fluent English, bringing strong communication skills and attention to detail to every project.…I am a motivated and results-driven Software Engineer with over 9 years of experience designing, building, and integrating software systems across enterprise, finance, and cloud environments. I have strong proficiency in Java, Spring Boot, REST APIs, and AWS, and I enjoy modernising legacy applications and integrating complex APIs. Currently, I am based in Sydney, Australia, and actively pursuing Pega certification to enhance my skills in process automation and system integration. I am quick to adapt to new technologies and passionate about solving challenging problems and driving continuous improvement. I thrive in team settings, collaborate effectively, and continuously seek personal development opportunities. I am bilingual with native Spanish and fluent English, bringing strong communication skills and attention to detail to every project.

Available to hire

I am a motivated and results-driven Software Engineer with over 9 years of experience designing, building, and integrating software systems across enterprise, finance, and cloud environments. I have strong proficiency in Java, Spring Boot, REST APIs, and AWS, and I enjoy modernising legacy applications and integrating complex APIs. Currently, I am based in Sydney, Australia, and actively pursuing Pega certification to enhance my skills in process automation and system integration.

I am quick to adapt to new technologies and passionate about solving challenging problems and driving continuous improvement. I thrive in team settings, collaborate effectively, and continuously seek personal development opportunities. I am bilingual with native Spanish and fluent English, bringing strong communication skills and attention to detail to every project.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Software Engineer at Australia

April 1, 2024 - Present

Designed tailored Java-based applications for business clients to automate and streamline routine tasks. Collaborated with stakeholders to gather requirements and ensure software met operational needs. Developed modular, maintainable code emphasizing reusability and scalability. Delivered training sessions to end-users and provided responsive post-deployment support. Quickly learned new tools and systems required for projects.

Field Service Technician at INNOVYNC Australia

March 31, 2024 - August 21, 2025

Installed, configured, and maintained CNC machinery and ensured integration with computer systems. Resolved critical faults and software compatibility issues to minimise downtime. Trained customers on CAD/CAM tools such as EasyStone and EasyGlass. Actively engaged in learning new software to support customer-specific machine operations.

Software Engineer at RYONEX Australia

June 30, 2023 - August 21, 2025

Engineered backend microservices using Spring Boot and integrated REST APIs for scalable enterprise applications. Developed Angular-based dashboards for internal and external users. Optimised SQL queries and caching to reduce response times by over 30%. Deployed cloud-native services on AWS to ensure high availability and resilience. Suggested architectural enhancements contributing to continuous improvement.

Salesforce Developer at QUANTUM SAVVY Pty Ltd Australia

March 31, 2019 - August 21, 2025

Delivered complex integrations between Salesforce CRM and financial partners using REST and SOAP APIs. Integrated Salesforce, Java-based backend systems, and Mulesoft APIs for seamless data exchange and process automation. Developed Apex code and Lightning components. Built Spring Boot middleware applications and learned Salesforce architecture rapidly to produce production-grade solutions.

Senior Analyst / Developer at ACCENTURE Colombia

April 30, 2018 - August 21, 2025

Led development teams delivering Java-based banking system integrations using Agile. Coordinated team tasks, ensuring timely delivery of Spring Boot backend modules with iterative client feedback. Mentored junior developers and promoted coding/testing best practices. Facilitated clear documentation, client demos, and collaborated on Angular-based dashboards for users.

Team Lead at IBM Colombia

August 31, 2015 - August 21, 2025

Directed technical planning, design, and implementation of banking software integrations. Managed multi-time zone development teams and aligned work with project milestones. Oversaw risk assessment, resource allocation, and solution delivery. Maintained client relationships and adapted quickly to scope or technology changes.

Java Developer at ACCENTURE Colombia

March 31, 2013 - August 21, 2025

Delivered scalable telecom billing system solutions using Java, Spring Boot, Hibernate, and Oracle. Introduced REST APIs to streamline communication and reduce processing delays. Led code reviews and knowledge-sharing sessions. Contributed to CMMI Level 3 certification processes. Automated banking processes using IBM WebSphere and managed deployments across environments. Developed solutions for large-scale banking data processing and asynchronous integration using IBM MQ Server.

Software Engineer at OESIA (Telefónica TELECOM Project) Colombia

August 31, 2009 - August 21, 2025

Developed inventory and administrative systems with Java and ZK Framework integrated with Oracle databases. Adapted to project requirements and timelines while collaborating with business analysts to improve usability and backend performance.