Leandro Jordão

Senior Software Engineer with 20 years of experience in Back-End, Distributed Systems, and Technical Leadership. Specialist in Clean Architecture, Microservices, and Scalable Systems, with strong hands-on expertise in Java EE/Quarkus, Docker, messaging (Kafka, RabbitMQ), and AWS. Proven track record leading multidisciplinary teams, defining architecture and business rules for critical billing systems in the energy sector, with end-to-end delivery from conception through cloud go-live.

Also experienced in mentoring developers, code review, and facilitating agile ceremonies.

BRADESCO — Senior Java Software Engineer

Dec 2025 – Present (9 months) · Uberlândia, MG · Hybrid

WISEBYTE (BestDeal Technologies) — 14 years 1 month (Jan 2012 – Jan 2026)

Senior Java Software Engineer | Jan 2017 – Jan 2026 (9 years 1 month)

• Leading a multidisciplinary team building billing tools for power distribution and transmission companies, defining architecture and business rules aligned with the energy sector;

• - Designing and deploying Online Account solutions, ensuring scalability and seamless integration with legacy systems;

• - Working with a consolidated tech stack: Java EE/Quarkus, Docker, GitFlow, Vaadin/Vue.js, MySQL, PostgreSQL, Oracle, MongoDB, Cassandra, Kafka, RabbitMQ, AWS (ECS, EC2, S3, SNS, SQS);

• - Driving the end-to-end delivery of the Distributed Generation billing system (Alsol → Energisa) from architecture to cloud go-live, with automated deployment and full observability;

• - Facilitating stakeholder meetings to gather requirements and validate functionalities, serving as the bridge between technical teams and business units;

• - Mentoring junior and mid-level developers, defining quality metrics, conducting code reviews, and running agile ceremonies.

• Key Achievements: Delivered a full Energy Billing system (Alsol), including a custom pricing engine, contributing to the company's acquisition by Energisa; built a billing-support platform automating data collection from 340+ transmission-company websites across Brazil's Rede Básica; implemented a complete Energy Billing system for client LUZ; fostered team stability with low turnover and high technical autonomy; earned a performance award for the positive business impact of delivered solutions.

Mid-Level Java Software Engineer | Jan 2014 – Jan 2017 (3 years 1 month)

• Built and validated billing-system business rules, focusing on large-scale CDR rating and tailoring the logic to diverse operational models of major clients;

• - Led the migration of four strategic customers, each with monthly billing volumes above BRL 3 million, while safeguarding data integrity;

• - Served as on-site liaison for Porto Seguro, supervising tests, functional validations, and production rollout.

• Key Achievement: Automated Fine Billing, shrinking the required team from 12 to 3 and cutting the processing window from eight days to continuous operation.

Junior Java Software Engineer | Jan 2012 – Jan 2014 (2 years 1 month)

• Contributed to the service-oriented architecture (SOA) for Brazil's number portability and refactored the Call Routing system;

• - Implemented a logarithmic-search indexing technique for a database of 50M+ records;

• - Built real-time dashboards visualizing call-routing activity across telecom operators.

CEDRO MARKET & FINANCES LTDA (3 years 1 month)

Product Manager / Product Owner | Dec 2009 – Dec 2011 (2 years 1 month)

• Served as Product Owner for capital-markets projects, focusing on risk-management solutions for equities trading;

• - Managed the product backlog and set feature priorities within a Scrum framework;

• - Designed and deployed a Microsoft Excel add-in for direct order submission to the market (C#, VB.NET, VBA).

Systems Analyst | Dec 2008 – Dec 2009 (1 year 1 month)

• Involved in the full development lifecycle of systems for the financial market, from requirements gathering to deployment;

• - Conducted functional testing and user acceptance testing, ensuring quality and stability.

INVIT INFORMATION SERVICES — Software Developer | QA

Jan 2008 – Dec 2008 (1 year)

• Test analysis, design, and execution on the Votorantim project, ensuring high-quality delivery in the first iteration;

• - Platform migration efforts on the Achê project; development in C#/.NET.

SONNER SISTEMAS DE INFORMÁTICA — Software Developer

Jan 2006 – Jan 2008 (2 years 1 month) · Uberlândia

• Developed and maintained the Tax Collection System for various municipalities;

• - Contributed to the Education System, integrating with Oracle 9i databases.

ACS — Call Center Representative (TIM Project)

Jan 2004 – Jan 2006 (2 years 1 month)

• Handled inbound and outbound calls for TIM customers, focusing on plans, billing, and service usage;

• - Gained technical knowledge of call rating rules that later supported work on billing projects.

UNITRI - Centro Universitário do Triângulo

Bachelor's Degree in Computer Science

2003 – 2006