Technical Lead (Java / AWS)

Why You Belong Here

As a Software Engineer at Cresteo, you'll be more than just a developer; you will be part of transforming the tech industry through our honest, transparent, and people-centric approach.

Your role will be diverse and dynamic. You'll be instrumental in developing and maintaining our software solutions, working with a varied technology stack, and ensuring that our products are functional, efficient, reliable, and scalable.

By joining us, you're not just choosing a job; you're aligning with a vision that values the human side of tech, where your skills and passion are recognized, nurtured, and celebrated.

What We're Looking For

• Deep hands-on experience with Java 17+ and Spring Boot 3.x, including production experience migrating applications from Spring Boot 2.x to 3.x
• Strong hands-on software engineering background, with recent experience writing and troubleshooting production code
• Deep experience designing and operating AWS serverless architectures at scale using Lambda, API Gateway, SNS, SQS, DynamoDB, Aurora/RDS Proxy, and S3
• Experience owning the architecture and technical evolution of distributed systems composed of multiple independently deployed services
• Strong understanding of serverless runtime and performance considerations, including Lambda cold starts, SnapStart, connection pooling, scalability, and production troubleshooting
• Hands-on Infrastructure as Code experience using Terraform and AWS SAM
• Strong GitLab CI/CD experience, including pipeline design, environment promotion, release gating, and production deployment practices
• Experience defining engineering standards, leading code reviews, and mentoring senior software engineers
• Strong experience with security and dependency lifecycle management, including CVE triage, dependency/BOM strategies, secrets management, and secret rotation
• Experience identifying and reducing architectural duplication across distributed services through shared libraries, reusable components, or platform engineering practices
• Strong production troubleshooting and root-cause analysis skills, with the ability to work hands-on with engineers on high-priority incidents
• Experience taking ownership of established codebases and architectures, including transitions from other teams or vendors, is highly valued
• Experience engineering within SOC 2, regulated, or similarly controlled environments is highly valued
• Experience with identity and access management platforms such as Curity, ForgeRock, Ping Identity, Auth0, or equivalent is valued
• Understanding of cost optimization strategies for AWS serverless workloads
• Strong technical leadership and delivery ownership, with accountability for technical decisions, engineering quality, and delivery commitments
• Strong client-facing communication skills, with the ability to explain architecture decisions, technical risks, incidents, and delivery trade-offs clearly
• Professional English communication skills for direct collaboration with client stakeholders

Own the technical direction and hands-on evolution of a large Java and AWS serverless ecosystem, setting engineering standards while remaining close to production code and critical incident resolution. Lead senior engineers and work directly with client stakeholders to improve architecture, reliability, security, and delivery across a complex distributed platform.