We are seeking a Senior DevOps Engineer with hands-on experience designing, building, and operating end‑to‑end CI/CD platforms across hybrid environments (AWS and on‑premises). Proven expertise in automation, reliability engineering, progressive delivery, security‑by‑design, and platform standardization to enable high‑quality, low‑risk software delivery at scale. Location: 100% remote. Working hours are based on the US Central and Eastern Time Zone. About us:  Abstra is a fast-growing, nearshore tech Talent services company, providing top Latin American tech talent to U.S. companies and beyond. Founded by U.S.-bred engineers with over 15 years of experience, Abstra specializes in sourcing skilled professionals across a wide range of technologies to meet our clients' needs, driving innovation and efficiency.  Responsibilities: * Design, implement, and operate a standardized CI/CD framework supporting all environments (Dev, QA, PartnerLab, Staging, and Production), with defined promotion workflows, enforced quality gates, artifact immutability, and parity across AWS and on-premises systems. * Implement progressive delivery strategies, including feature flags, canary deployments, and blue-green rollouts, with automated rollback capabilities and full release traceability from commit to production. * Integrate automated testing (unit, integration, regression, security, and performance) into CI/CD pipelines, enforcing quality gates at every promotion stage and supporting manual validation workflows with controlled access and observability. * Automate database schema versioning, migrations, rollbacks, and validation, including lower-environment refresh pipelines with data masking and PII anonymization for all non-production environments. * Define and enforce observability standards across logs, metrics, and traces, with service health dashboards, alerting, and deployment health signals integrated into release decisions and incident response workflows. * Embed security scanning, secrets management, least-privilege IAM, credential rotation, and artifact integrity verification into pipelines, ensuring alignment with enterprise change management and audit requirements. Requirements: * Experience with AWS (mandatory): ECS, EKS, Lambda, RDS, IAM, CloudFormation, and CloudWatch, hybrid infrastructure across on-premises VMs, bare-metal, and internal networking platforms, and Terraform for infrastructure provisioning. * Experience with GitHub Enterprise, GitHub Actions, and CI/CD orchestration across hybrid AWS and on-premises environments, including artifact versioning and promotion strategies. * Experience with Docker, Kubernetes (EKS and on-premises), Helm, and automated testing frameworks covering unit, integration, regression, and performance, alongside static and dynamic analysis tools and feature flag management platforms. * Experience with Oracle and Microsoft SQL Server (mandatory), schema migration tooling, data masking, and anonymization. * Experience with Prometheus, Splunk, New Relic, Grafana, CloudWatch, OpenTelemetry, ELK, and SLO-driven alerting tools such as Uptrends and PagerDuty. * Experience with secrets management tools such as HashiCorp Vault or AWS Secrets Manager, secure pipeline design, and compliance-ready audit workflows. What We Offer:  * Flexible working hours and remote work options.  * Opportunities for professional growth and development.  * A collaborative and inclusive work environment.  * The chance to work on impactful projects with a talented team.  * Excellent compensation in USD.  * Hardware and software setup.