Software Development Engineer Expert at Equinix in Warsaw

Job description

Who are we? Equinix is the world’s digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet. A place where tech thinkers and future builders turn bold ideas into breakthrough experiences, we welcome your unique perspective. Help us challenge assumptions, uncover bias, and remove barriers—because progress starts with fresh ideas. You’ll find belonging, purpose, and a team that welcomes you—because when you feel valued, you’re empowered to do your best work. Job Summary The Software Development Engineer Sr. Staff (Expert Level) is a highly experienced technical individual contributor with deep expertise in software engineering, Continuous Integration and Continuous Delivery (CI/CD), DevSecOps, and software delivery optimization. This role is responsible for defining technical strategies, designing scalable automation solutions, and driving continuous improvements across the software development lifecycle. The role serves as a technical authority in CI/CD architecture, pipeline engineering, build and release automation, software quality, security integration, and engineering productivity. It identifies systemic bottlenecks, resolves complex technical challenges, and establishes engineering standards and best practices that improve delivery speed, software quality, reliability, security, and operational efficiency. Working across development, quality engineering, security, infrastructure, and operations teams, the Sr. Staff Engineer influences technical direction and drives measurable improvements in software delivery capabilities. This is an expert-level individual contributor role that does not directly manage employees or lead teams but provides technical leadership, mentorship, and cross-functional influence. Responsibilities Having wide-ranging experience, uses professional concepts and company objectives to resolve complex software systems engineering issues in creative and effective ways. Determines methods and procedures on new assignments. Technical Leads by example in setting complex code review guidelines and maintaining high quality code Designs systems with many dependencies and moving parts; the designs are scalable and efficient Debugs complex production issues Introduces best practices learned from cross-functional teams Evaluate and recommend CI/CD tools, frameworks, and technologies based on scalability, maintainability, integration capabilities, security, performance, and total cost of ownership. Define architectural standards and engineering guidelines for pipeline design, version control, branching strategies, build systems, deployment workflows, and release management. Identify architectural limitations and technical debt in existing delivery platforms and develop strategies to modernize and simplify the CI/CD ecosystem. Technical for DevSecOps Identify and eliminate bottlenecks across the software delivery lifecycle, including source code integration, compilation, dependency resolution, testing, artifact publishing, deployment, and release validation. Drive measurable improvements in build and pipeline execution times, feedback cycles, deployment frequency, release lead time, and overall developer productivity. Analyze pipeline execution data, failure patterns, resource utilization, and workflow dependencies to identify root causes and prioritize high-impact improvements. Embed security controls and compliance requirements throughout the CI/CD lifecycle, ensuring that security is integrated into development and delivery workflows rather than treated as a separate activity. Define and implement automated security scanning and policy enforcement, including static application security testing (SAST), software composition analysis (SCA), secret detection, infrastructure-as-code scanning, container scanning, and dynamic testing where applicable. Integrate software bill of materials (SBOM) generation, artifact signing, provenance, dependen