Job Description

Lead Software Engineer (Java/Spring Boot/AWS) - Hybrid Lisbon (3 days/week office)

ABOUT THE OPPORTUNITY

Lead the engineering of a next-generation platform for end-to-end marketing campaign management, built by a global technology leader. The platform covers audience targeting, campaign execution and measurement, and runs at global scale over massive volumes of data. As a Lead Software Engineer (Technical Lead), you’ll own technical direction, engineering efficiency and on-time delivery. Teams here use GenAI and Agentic AI across the whole development lifecycle. This is a 12-month project starting in November 2026.

PROJECT & CONTEXT

• Architect new platform capabilities and lead a team of UI developers, full-stack engineers and data engineers.
• Build highly available, large-scale and fault-tolerant platforms.
• Design and develop REST APIs and web services with Java, Spring Boot and cloud-native technologies.
• Assess approaches for integrating backend data services with user interfaces, and bridge technical and business requirements.
• Drive platform modernization on AWS and Databricks as part of a wider cloud transformation strategy.
• Champion engineering best practices in quality, automation, observability, reliability and performance, as well as the adoption of GenAI and Agentic AI.
• The work model is hybrid, with 3 days per week on-site in Lisbon and regular working hours. The selection process includes an interview with the client.

WHAT WE’RE LOOKING FOR (Required)

• Hands-on experience with Java, Spring Boot and distributed service architectures (REST APIs)
• Proven experience architecting large, complex distributed platforms and delivering cloud-native solutions on AWS
• Familiarity with Big Data and analytics technologies such as Databricks, Hadoop, Spark, Python and Scala
• Experience with real-time or near real-time data ingestion and processing systems
• Understanding of Domain Driven Design (DDD) and Event Driven Design (EDD)
• Experience building and governing automated quality frameworks with JUnit and Mockito, plus a solid understanding of BDD testing frameworks
• Understanding of CI/CD with Jenkins and automated deployment pipelines
• Experience implementing monitoring, logging, alerting and reliability engineering practices
• Track record of delivering highly available, observable, resilient and high-performance products at scale
• Experience using GenAI and AI-assisted development tools to improve productivity and quality
• Technical leadership experience and the ability to communicate architecture to a wide range of stakeholders
• Familiarity with Agile/Scrum
• Fluent English, written and spoken

NICE TO HAVE (Preferred)

• Familiarity with modern web development technologies such as React and/or Angular, Node.js and GraphQL

Compensation: €1800 – €2500/month net, depending on experience and seniority level.

Why HumanIT people stay (4.4 Glassdoor, 89% recommend)

• 15th month salary
• Health insurance covering your family
• Birthday off
• Mobility program for digital nomads
• Real work-life balance

Full benefits: https://www.humanit.pt/careers/#perks

What it’s really like: https://www.humanit.pt/careers/#work-at