Senior Software Engineer - McKinsey ID

Job ID: 110853Type of role: Full-timeInterest: Internal roles / Technology & DigitalSkill group: N/AFunctions: TechnologyIndustries: High TechRegion: AllLocations: San Jose (Costa Rica) | Sao Paulo (Brazil)Posted (LinkedIn): 2026-07-28Created: 2026-07-28Apply: you'll work withYou are someone who thrives in a high-performance environment, bringing a growth mindset and entrepreneurial spirit to tackle meaningful challenges that have a real impact. In return for your drive, determination, and curiosity, we’ll provide the resources, mentorship, and opportunities to help you quickly broaden your expertise, grow into a well-rounded professional, and contribute to work that truly makes a difference. When you join us, you will have: Continuous learning: Our learning and apprenticeship culture, backed by structured programs, is all about helping you grow while creating an environment where feedback is clear, actionable, and focused on your development. The real magic happens when you take the input from others to heart and embrace the fast-paced learning experience, owning your journey.A voice that matters: From day one, we value your ideas and contributions. You’ll make a tangible impact by offering innovative ideas and practical solutions, all while upholding our unwavering commitment to ethics and integrity. We not only encourage diverse perspectives, but they are critical in driving us toward the best possible outcomes.Global community: With colleagues across 65+ countries and over 100 different nationalities, our firm’s diversity fuels creativity and helps us come up with the best solutions. Plus, you’ll have the opportunity to learn from exceptional colleagues with diverse backgrounds and experiences.Exceptional benefits: On top of a competitive salary (based on your location, experience, and skills), we provide a comprehensive benefits package to enable holistic well-being for you and your family.What you'll doYou will take ownership of developing and maintaining the Client Identity Platform within a globally distributed, cross-functional engineering team. You will design, build, and scale high-performance, cloud-native solutions that ensure the security, reliability, and satisfaction of our clients. Working closely with full-stack engineers, SREs, DevOps specialists, data engineers, and QA professionals, you will optimize infrastructure, leverage Kubernetes and AWS serverless technologies, and contribute to testing, documentation, and continuous improvement of distributed systems that support increasing traffic and usage demands.Your backgroundExpert-level proficiency in at least one programming language: Golang, Java, or NodeJSProven experience designing and implementing distributed systems in high-traffic environmentsHands-on experience with Kubernetes for container orchestration and deploymentFamiliarity with AWS serverless technologiesStrong understanding of scalability, performance optimization, and distributed systems conceptsExperience working in collaborative, cross-functional engineering teamsExcellent problem-solving and troubleshooting skills in production environmentsStrong written and verbal communication skills for working with a global team