> Markdown version of [/jobs/ext/1320046-principal-software-engineer-mckinsey](https://www.wearedevelopers.com/jobs/ext/1320046-principal-software-engineer-mckinsey). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - McKinsey - **Company:** Mio Partners, Inc - **Location:** Prague, OK, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Amazon Web Services, Automation of Tests, Continuous Integration, Relational Databases, DevOps, Distributed Systems, Apache JMeter, PostgreSQL, Node.Js, OpenID, Scrum Methodology, Red Hat Enterprise Linux, Security Assertion Markup Language (SAML), Software Engineering, Okta, ReactJS, Gatling, Containerization, Kubernetes, Functional Programming, Terraform, Service Stack, Golang - **Published:** July 17, 2026 - **Apply:** https://www.dice.com/job-detail/49645e75-c79f-4f2d-b787-ebcebb20920f ## About the Role * 10+ years of software development experience with a proven track record in distributed systems * Deep expertise in Java, Golang, Ocaml, or Node * Proficiency in functional languages such as OCaml * Advanced skills in at least one UI framework (React preferred) * Proficient in writing tests; experience with automated testing tools like Jest, JMeter, or Gatling * Deep understanding of cloud native technologies and providers such as AWS, Terraform, and Kubernetes * Strong understanding of relational database systems; proficiency with PostgreSQL preferred * Comprehensive understanding of CI/CD best practices * Expertise in SSO/federated authentication methods (SAML, OIDC) * Experience with identity management solutions like Okta and RedHat Keycloak ## Description Do you want to do work that matters, alongside supportive leaders who will help you grow faster than you ever thought possible? Are you a creative problem-solver who is energized by challenges? You've come to the right place. YOUR IMPACT You will lead the development of global authentication and authorization services, architecting and building scalable identity platforms that support client-facing solutions and thousands of users across a distributed, global team. You will produce high-quality code across the full technology stack, manage stakeholder relationships, lead troubleshooting and performance improvements, and drive Agile and SCRUM development processes. You will collaborate with engineering, devops, product management, design, security, UX, and consulting teams to deliver robust and innovative solutions, mentor junior engineers, and apply industry standards to enhance product quality. You will be part of a globally distributed team spanning Asia, Europe, and the Americas within the Security organization. ## Related Videos - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Retooling and refactoring - an investment in people.](https://www.wearedevelopers.com/videos/371-retooling-and-refactoring-an-investment-in-people) - [Scoring 2000 Products per Request: Performance Pitfalls in Golang](https://www.wearedevelopers.com/videos/2073-scoring-2000-products-per-request-performance-pitfalls-in-golang) - [Coffee with developers - Brian Morrison](https://www.wearedevelopers.com/videos/902-coffee-with-developers-brian-morrison) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)