Open to opportunities

João Sebastião

@joosebastio

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Integration engineer specializing in MuleSoft, cloud integrations, and scalable API-led architectures.

Netherlands

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What I'm looking for

I seek integration-focused roles where I can design scalable API-led solutions, lead technical integration efforts, work with cloud and CI/CD, and grow into architecture leadership within collaborative teams.

I am an Integration Engineer with hands-on experience designing and implementing scalable, API-led integration architectures using MuleSoft, cloud platforms and CI/CD pipelines. I focus on building secure, maintainable integrations that meet functional and non-functional requirements.

At Deloitte I progressed from Analyst to Tech Senior Consultant, leading integration design and implementation for eCommerce, transportation transformation and HR migration projects, and delivering MuleSoft APIs, YAML CI/CD pipelines and API management solutions.

I hold MuleSoft Platform Architect and Developer certifications and an Azure Fundamentals certification, and I bring a collaborative, continuous-improvement mindset with experience in SAP, DevOps practices and event-driven, composable integration patterns.

Experience

Work history, roles, and key accomplishments

Tech Senior Consultant

Deloitte Technology, S.A

Jul 2024 - Jun 2025 (11 months)

Led design and implementation of a scalable eCommerce integration architecture, delivering MuleSoft APIs, API management, and CI/CD pipelines to meet SLA, security, and compliance requirements.

MuleSoft API Management AWS Azure DevOps CI CD Git REST SAP

Tech Consultant

Deloitte Technology, S.A

Sep 2022 - Jul 2024 (1 year 10 months)

Developed MuleSoft integrations and CI/CD pipelines to centralize logistics and finance into a unified ERP (SAP S/4HANA) for a transportation-industry transformation project.

MuleSoft Azure DevOps CI CD Git REST SOA API Led Connectivity

Tech Analyst

Deloitte Technology, S.A

Sep 2021 - Aug 2022 (11 months)

Implemented MuleSoft APIs for transportation transformation and global HR data-migration integrations, delivering API-led connectivity and automation of integration workflows.

MuleSoft SAP SuccessFactors Azure DevOps CI CD Git REST API Led Connectivity

Education

Degrees, certifications, and relevant coursework

Instituto Superior Técnico

Master of Science, Electrical and Computer Engineering

2015 - 2021

Grade: 16/20

Master's degree in Electrical and Computer Engineering with a major in Systems, Control and Robotics and a minor in Computer Science; completed coursework and projects related to systems and control.

Sungkyunkwan University

Exchange Programme, Computer Science

2019 - 2019

International exchange programme focused on machine learning, artificial intelligence, and programming; gained academic and cultural experience abroad.