Raising Seniors

Rethinking How We Grow Engineers in the Age of AI

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The obituary for the junior developer has hardened into common sense: why pay for an apprentice when an agent writes the function first? This paper argues that the obituary rests on a mistake about what made anyone senior in the first place. It was never the code. It was judgment, built from a thousand small failures and sharpened by the juniors who refused to accept what their seniors had quietly agreed to tolerate.

Opening with a letter to a senior engineer, the authors trace how every layer of abstraction has been called cheating, define what a senior engineer is becoming in 2026, and make the case that a junior is an investment in a feedback loop that runs both ways. With the accidental learning of syntax gone, growing wisdom has to be intentional, and the paper shows how organizations can build that path on purpose.

What's inside

  • Letter to a Senior — A candid argument, engineer to engineer, for why mastery of the vanishing layer is not worth and why the next generation still needs you.
  • The 2026 Senior Engineer — Seniority measured by the time horizon you can own and the judgment you can exercise, with the emerging archetypes of feature builder, platform engineer, and process engineer.
  • Juniors as Future Seniors — Why the definition of a junior has moved from output producer to apprentice on the path to wisdom, and what that changes about hiring and mentoring.
  • Synthetic Struggle — How to deliberately create the learning that syntax used to provide, so juniors reason through problems instead of pasting answers.
Topics
Workplace Culture · Leadership · AI
Formats
epub · pdf
License
Creative Commons BY-NC-SA

About the authors

7 authors
Kent BeckPrincipal, Thinkies

Affiliation as of 2026-09-01

Kent Beck brings over forty years of pioneering experience in software engineering methodologies, having created Extreme Programming (XP) and co-created Test-Driven Development (TDD)—practices that fundamentally transformed how organizations develop software. Currently authoring the best-selling newsletter tidyfirst.substack.com, he shares insights on software design, refactoring, and development practices with a global audience of engineering leaders and practitioners. As a co-author of the Agile Manifesto and creator of the xUnit testing framework, Kent has established foundational principles for iterative development and automated testing that remain industry standards, while his influential books, including Extreme Programming Explained, continue to shape modern software practices. Throughout his career at leading technology companies including Apple and Facebook, Kent has remained committed to improving developer productivity and software quality through pragmatic engineering practices and empirical approaches to design.

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Jondavid BlackCIDO Chief Engineer, Northrop Grumman

Affiliation as of 2026-09-10

JD Black has over twenty-five years of experience working complex mission and safety critical government programs ranging from international census to space launch safety to missile defense. He currently serves as the Chief Information & Digital Office (CIDO) Chief Engineer at Northrop Grumman leading large-scale highly regulated enterprise architecture, engineering, and digital transformation.

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Cornelia DavisDeveloper Advocate, Temporal Technologies

Affiliation as of 2026-09-04

Cornelia Davis is a software technologist with more than thirty years experience who drives technical strategy, product development and go to market, and helps customers leverage said technology to further their business goals. Cornelia prefers to spend half her time directly engaged with customers, deeply understanding their needs and finding solutions to their problems. The other half of the time she spends distilling what she learns through these engagements and using that to drive product evolution as well as industry advancement through evangelism—conferences and writing. Her personal mantra is “free your mind.” She is also the author of Cloud Native: Designing Change- Tolerant Software . And she still cuts code, even if only a bit of the time.

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Shawn MintoVP of Product Development, Planview

Affiliation as of 2026-09-04

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Dan NeffSenior Principal Cloud Architect, Adobe
Ezra SavardStaff Engineer, Netflix

Affiliation as of 2026-09-04

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Adam ZimmanStartup Advisor and Investor

Affiliation as of 2026-09-04

Adam Zimman is a VC Advisor providing guidance on leadership, platform architecture, product marketing, and GTM strategy. He has over 20 years of experience working in a variety of roles from software engineering to technical sales. He has worked in both enterprise and consumer companies such as VMware, EMC, GitHub, and LaunchDarkly. Adam is driven by a passion for inclusive leadership and solving problems with technology. His perspective has been shaped by a degree (AB) from Bowdoin College with a dual-focus in Physics and Visual Art, an ongoing adventure as a husband and father, and a childhood career as a fire juggler.

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