Technical Lead: Java/Spring Boot on AWS | Hybrid Lisbon

HumanIT Digital Consulting; Lisboa; Hybrid; EUR 20,000 - 28,000; Full time

Job summary

HumanIT Digital Consulting seeks a Lead Software Engineer to guide the engineering of a next-generation marketing platform. You will own technical direction, oversee UI, full-stack and data engineering teams, and ensure end-to-end delivery at global scale.

You’ll design REST APIs with Java/Spring Boot, drive cloud modernization on AWS, and promote best practices for quality, observability and performance in a hybrid Lisbon setup. Fluent English is required.

Qualifications

• 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.

Responsibilities

• 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 GenAI/Agentic AI adoption.
• The work model is hybrid, with 3 days per week on-site in Lisbon.
• The selection process includes an interview with the client.

Skills

Java

Spring Boot

Distributed systems

REST APIs

AWS

DDD/EDD

CI/CD

Observability

GenAI experience

Leadership

Agile/Scrum

English fluency

Tools

Databricks

Jenkins

Hadoop/Spark

GraphQL/React (nice to have)

Job description

HumanIT Digital Consulting seeks a Lead Software Engineer to guide the engineering of a next-generation marketing platform. You will own technical direction, oversee UI, full-stack and data engineering teams, and ensure end-to-end delivery at global scale.

You’ll design REST APIs with Java/Spring Boot, drive cloud modernization on AWS, and promote best practices for quality, observability and performance in a hybrid Lisbon setup. Fluent English is required.