Senior DevOps Engineer

Description

About the Role: We are looking for a Senior DevOps Engineer to maintain, optimize, and continuously improve the CI/CD platform, infrastructure-as-code, and operational practices for a mature, stable multi-environment AWS ecosystem. The solution is fully developed and in production; the focus is on continuous improvement, cost optimization, reliability, and operational excellence. Additionally, the project is undergoing an AI-First transformation, adopting AWS Kiro and custom AI agents to implement an AI-driven Development Lifecycle (AI-DLC). You will work closely with development squads to ensure fast, reliable, and secure delivery of enhancements and fixes.

Key Responsibilities:

• Maintain and evolve CI/CD pipelines (AWS CodeBuild, CodePipeline) ensuring reliability and speed of delivery
• Maintain and improve Infrastructure as Code using AWS CDK (Python primarily, some TypeScript) across multiple AWS accounts
• Optimize serverless infrastructure performance, cost, and reliability (Lambda, API Gateway, AppSync, Step Functions, EventBridge)
• Improve and extend observability solutions (CloudWatch, OpenSearch dashboards, structured logging, alerting)
• Continuously strengthen security posture including IAM policies, KMS encryption, Secrets Manager, and network segmentation
• Maintain and tune data infrastructure components (RDS PostgreSQL, ElastiCache Redis, DynamoDB, S3)
• Review and improve disaster recovery strategies, backup automation, and rollback mechanisms
• Support multi-account governance and cross-account resource management
• Collaborate with development teams on deployment strategies (blue/green, canary, feature flags)
• Drive operational excellence through runbooks, incident response procedures, and post-mortem processes
• Apply FinOps practices to monitor, optimize, and report on cloud cost and resource utilization
• Identify and implement continuous improvement initiatives across infrastructure, pipelines, and operational processes
• Contribute to the AI-First transformation by integrating AI agents and AI-assisted workflows into the development and operations lifecycle
• Troubleshoot production issues and perform root cause analysis
• Mentor junior team members on cloud infrastructure and DevOps practices

Key Challenges:

• Sovereign Cloud: reduce footprint on vendor lock-in AWS solutions and migrate workloads toward containers and cloud-native standard technologies
• Migration and Modernization: plan and execute application and workload migration to AWS through 2029
• Propose improvements and new solutions at the weekly architecture board for cost reduction, operational improvements, and adoption of new AWS or market features

What We Offer:

• Access and incentive to pursue multiple certifications (AWS, Azure, GCP, GitHub, AI, and more)
• Be part of a 60+ DevOps engineering community, working across 25+ projects in different industries and countries
• Collaborative environment with internal and external meet-ups, happy hours, and challenges beyond project work
• Access to leading AI tools and platforms
• Opportunity to work on a high-impact EU institutional project with modern serverless architecture
• Active AI-First transformation with cutting-edge AI-assisted development practices

Requirements

Required Technical Skills:

• Advanced proficiency in Amazon Web Services (AWS) - multi-account environments
• Strong experience with Infrastructure as Code (AWS CDK with Python/TypeScript; CloudFormation)
• CI/CD pipeline design and management (CodeBuild, CodePipeline, or equivalent)
• Containerization and orchestration (Docker, ECS/Fargate)
• Serverless architecture (Lambda, API Gateway, Step Functions, EventBridge)
• Networking (VPC, subnets, security groups, PrivateLink, CloudFront)
• Monitoring and observability (CloudWatch, OpenSearch, structured logging)
• Scripting and automation (Python, Bash, PowerShell)
• Database operations (PostgreSQL, Redis, DynamoDB)
• Security hardening (IAM, KMS, WAF, Secrets Manager)
• Maintain and enforce security and quality gates across CI/CD pipelines (OWASP Dependency Check, Prowler, SonarQube, AWS Config, ECR image scanning)
• FinOps fundamentals (cost allocation, tagging strategies, resource optimization)

Desired Qualifications:

• 5+ years of experience in DevOps/Platform Engineering roles
• Experience with multi-environment deployment strategies and release management
• Familiarity with Agile/Scrum delivery (Jira, Confluence)
• Experience with Git workflows and branching strategies
• Understanding of compliance and data sovereignty requirements (EU context)
• Interest or experience in AI-assisted development tools and workflows
• Strong communication skills and ability to work independently as an SME
• Active participation in team discussions and problem-solving
• Continuous improvement mindset with a track record of optimizing processes and reducing waste

Legal

Must own a valid work permit or EU/Schengen Space Nationality to legally work in Portugal.

What We Offer

• Health insurance
• Life Insurance and Pension Plan Programs
• Free medical services at the office (Physician, Nutritionist, Psychologist)
• Wellness programs
• Flexben Program (Support for Education, Kindergarden, Training, Technology, Health)
• Employee Share Purchase Plan
• Personalized training paths and access to Udemy and Plurisight Platforms
• Flex-ability program (financial and flexible support for people with disabilities)
• Special banking conditions
• Hybrid working model