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🎙️ Señors @ Scale

Deep conversations with senior developers about scaling applications, teams, and careers

🎧 Latest Episodes

Technical Leadership at Scale with Anemari Fiser (O’Reilly Author and Engineering Coach)
Episode 24 • 51m

Technical Leadership at Scale with Anemari Fiser (O’Reilly Author and Engineering Coach)

What makes a great tech lead? It's not just technical chops—it's the soft skills that scale your impact beyond your own keyboard.In this episode, I sit down with Anemari Fiser, an engineering leader, O'Reilly author, and coach who's spent over a decade helping engineers make the leap from individual contributor to technical leader. Anemari has led teams at ThoughtWorks through massive transformations (think monolith-to-microservices, datacenter-to-AWS migrations), coached 500+ engineers, and trained 300+ tech leads worldwide.Her new book, "Leveling Up as a Tech Lead," distills years of hands-on experience into practical frameworks for the hardest role in tech. We explore why so many senior engineers struggle with the transition, how to measure success when you're no longer shipping code, and the collaboration techniques that actually work in real-world teams.This conversation goes deep on the unglamorous but essential work of technical leadership—from running effective 1-on-1s to delegation that empowers rather than bottlenecks, from defining what success means for you to navigating the brutal tech lead job market.🔸 KEY TOPICS DISCUSSED- The journey from software engineer to product director—and what she learned along the way- Why soft skills, not just technical expertise, determine your impact at scale- The critical difference between senior engineers and tech leads- How to transition from "doing the work" to "enabling the work"- Why your success as a tech lead depends entirely on your team's success- The accountability framework that drives consistent growth in others- How to get people out of their comfort zones without breaking trust- The power of intentional growth vs. accidental learning- Measuring impact when you're not writing code anymore- Why 1-on-1s are your secret weapon (and how to run them effectively)- The delegation playbook that removes pressure while empowering your team- Networking strategies that actually work in today's tech job market- How to interview for tech lead roles—and spot the red flags- The collaboration techniques that scale teams beyond individual heroics⏱️ CHAPTERS00:00 Introduction to Anemari Fiser00:58 Early Career: From University to First Tech Job04:09 Balancing Work and University in Romania09:00 First Job Experiences and Learning to Code12:02 The Importance of Accountability in Leadership16:07 Strategies for Encouraging Growth in Others20:03 Intentional Growth and Getting Out of Your Comfort Zone20:56 Scaling Soft Skills in Tech23:57 Senior Engineer vs. Tech Lead: What's the Difference?26:55 Making the Transition from Senior Engineer to Tech Lead29:40 Expanding Your Team's Impact Beyond Your Own Work31:01 The Tech Lead Role Across Different Companies32:32 Balancing Hands-On Technical Work with Leadership34:29 Defining Success as a Tech Lead38:10 Measuring Impact and Setting Personal OKRs42:07 Guiding Junior Engineers: Teaching vs. Enabling43:51 Job Hunting Strategies in the Current Tech Market46:10 Why Networking is Your Best Job Search Tool50:52 Interviewing for Tech Lead Roles: Green Flags and Red Flags53:28 Key Takeaways from "Leveling Up as a Tech Lead"📚 RESOURCES MENTIONED- Anemari's Book: "Leveling Up as a Tech Lead" (O'Reilly) - https://www.amazon.com/[BOOK-LINK]- Crucial Conversations by Kerry Patterson- The Culture Map by Erin Meyer- The Manager's Path by Camille Fournier- Continuous Deployment by Valentina Servile- The Silent Patient by Alex Michaelides🔗 FOLLOW ANEMARI- LinkedIn: https://www.linkedin.com/in/anemari-fiser- Website: https://anemarifiser.com🎙️ FOLLOW & SUBSCRIBE📸 Instagram: https://www.instagram.com/senorsatscale/📸 Instagram: https://www.instagram.com/neciudev🎙 Podcast URL: https://neciudan.dev/senors-at-scale📬 Newsletter: https://neciudan.dev/subscribe💼 LinkedIn: https://www.linkedin.com/in/neciudan💼 LinkedIn: https://www.linkedin.com/company/se%C3%B1ors-scale/

February 7, 2026
Episode 23 1h 8m January 25, 2026
MicroFrontends at Scale with Florian Rappl (author of "The Art of Micro Frontends" & Piral creator)

MicroFrontends at Scale with Florian Rappl | The Art of Modular ArchitectureWhat if you could build web applications where teams could deploy independently without breaking each other's code? In this episode, we sit down with Florian Rappl—author of "The Art of Micro Frontends," creator of the Piral framework, and Microsoft MVP—to explore how micro frontends are transforming how we build scalable web applications. Florian shares hard-won lessons from over a decade of building distributed systems, from smart home platforms to enterprise portals for some of Germany's largest companies. We dive deep into the philosophy behind Piral, why modular architecture isn't just about using multiple frameworks, and how micro frontends might be the key to unlocking AI-powered development workflows.🔸 Key Topics Discussed:- The evolution from monolithic frontends to true modular architecture- Why loose coupling is more important than multi-framework support- How Piral solves the orchestration problem that Module Federation doesn't- The "inverse dependency" pattern that makes micro frontends resilient- Building enterprise portals that scale across hundreds of teams- Server-side rendering and SEO challenges in micro frontend architectures- Why Cloudflare Workers and edge computing are game-changers for MFEs- The future of AI-assisted development in modular codebases- Lessons learned from smart home systems, customer portals, and production deploymentsWhether you're an architect evaluating micro frontends for your organization or a developer curious about modular patterns that actually work in production, this conversation offers battle-tested insights you won't find in the documentation.⏱️ Chapters:00:00 - Introduction & Welcome01:31 - The Origin Story of Piral04:30 - The Micro Frontend Landscape in 201908:05 - Piral vs Module Federation: Understanding the Difference12:15 - The Inverse Dependency Pattern18:20 - Building Enterprise Portals at Scale25:40 - Server-Side Rendering & SEO Challenges35:10 - Cloudflare Workers & Edge Computing for Micro Frontends45:25 - Cross-Framework Components & the Converter API52:30 - Discovery Services & Dynamic Module Loading58:15 - AI-Assisted Development & Modular Architecture1:04:01 - Book Recommendations📚 Resources Mentioned:- Piral Framework: https://piral.io- The Art of Micro Frontends (2nd Edition) by Florian Rappl- Building Micro-Frontends (2nd Edition) by Luca Mezzalira- Physics of the Future by Michio Kaku- Release It! by Michael T. Nygard- Continuous Delivery by Jez Humble & David Farley🔗 Follow Florian:- LinkedIn: [Add Florian's LinkedIn]- Twitter/X: [Add Florian's Twitter]- GitHub: [Add Florian's GitHub]🎙️ Follow & Subscribe:📸 Instagram: https://www.instagram.com/senorsatscale/📸 Instagram: https://www.instagram.com/neciudev🎙 Podcast: https://neciudan.dev/senors-at-scale📬 Newsletter: https://neciudan.dev/subscribe💼 LinkedIn: https://www.linkedin.com/in/neciudan💼 LinkedIn: https://www.linkedin.com/company/señors-scale/#MicroFrontends #WebDevelopment #SoftwareArchitecture #Piral #ModuleFederation #ScalingSoftware #EnterpriseArchitecture #JavaScript #React #DevOps💬 What's your experience with micro frontends? Have you tried Piral or other frameworks? Let us know in the comments!---Señors @ Scale is a podcast exploring the technical decisions, architectural patterns, and scaling strategies that power modern software systems. Each episode features deep conversations with engineers, architects, and technical leaders building software that serves millions.

Episode 22 53m January 18, 2026
Nuxt at Scale with Daniel Roe

In this episode of Señors @ Scale, Dan sits down with Daniel Roe, leader of the Nuxt Core team at Vercel, for an in-depth conversation about building and scaling with Nuxt, Vue's most powerful meta-framework.Daniel shares his journey from the Laravel world into Vue and Nuxt, revealing how he went from being a user to becoming the lead maintainer of one of the most important frameworks in the JavaScript ecosystem. We explore the evolution of Nuxt, the philosophy behind its developer experience, and how understanding user pain points shapes every feature decision.The conversation dives deep into the technical aspects that matter when building at scale: rendering strategies and when to choose static over server-side rendering, the revolutionary Nitro server engine and how it transforms backend flexibility, data fetching patterns and best practices for performance, and the module ecosystem that empowers developers to extend Nuxt in powerful ways.Daniel explains why "always go for static rendering if you can" isn't just advice — it's a performance philosophy. He breaks down how Nuxt makes it easier to be your own target audience as a framework developer, and why contributing to open source is ultimately about joy and giving back to the community.Whether you're building with Nuxt, considering it for your next project, or just curious about how modern frameworks are designed with developer experience at their core, this episode offers invaluable insights from someone shaping the future of Vue development.Chapters00:00 Introduction and Daniel's Background03:45 From Laravel to Vue and Nuxt08:20 Becoming a Nuxt Core Team Member12:30 The Evolution of Nuxt and Developer Experience18:15 Understanding User Pain Points24:00 Rendering Strategies: Static vs Server-Side29:45 The Nitro Server Engine Revolution35:20 Data Fetching Best Practices41:10 The Power of Nuxt Modules46:30 Contributing to Open Source51:00 The Future of Nuxt53:52 OutroFollow & Subscribe:📸 Instagram: https://www.instagram.com/senorsatscale/📸 Instagram: https://www.instagram.com/neciudev🎙 Podcast URL: https://neciudan.dev/senors-at-scale📬 Newsletter: https://neciudan.dev/subscribe💼 LinkedIn: https://www.linkedin.com/in/neciudan💼 LinkedIn: https://www.linkedin.com/company/señors-scale/Additional Resources🌐 Nuxt: https://nuxt.com💬 Daniel Roe on GitHub: https://github.com/danielroe🚀 Vercel: https://vercel.com#nuxt #vue #javascript #webdevelopment #frontend #serverless #nitro #vercel #opensource #developerexperience #señorsatscaleDon't forget to like, comment, and subscribe for more engineering stories from the front lines.How is your team using Nuxt or Vue to scale? Share below 👇

Episode 21 34m December 14, 2025
State Management at Scale with Daishi Kato (Author of Zustand)

In this episode of Seniors at Scale, host Dan Neciu dives deep into the world of state management with Daishi Kato, the prolific open-source author and maintainer behind three of the most widely used libraries in modern React: Zustand, Jotai, and Valtio. Daishi also shares insights into his new project, Waku, a framework built around React Server Components.Daishi has spent nearly a decade building modern open-source tools that expertly balance simplicity with scalability. He shares how the announcement of React Hooks got him excited and led him to pick global state as his field to explore, as it was "more like logic" and "off look and feel".We break down the core philosophies and technical trade-offs between his state management trifecta:Zustand (Zastan): Described as a single global store or global variable. It is minimal, and its philosophical difference from Redux is that it doesn't use reducers.Jotai (Jyotai): Defined as a set of atom definitions, structured more like functions than a single global store. Daishi explains how the concept evolved from a need to avoid JavaScript proxies and selectors for better rendering optimization.Valtio (Valtio): This library is fundamentally based on just using JavaScript objects. It re-introduces proxy-based reactivity because Daishi realized that proxies were now "recognized" and acceptable in the community. We discuss its hook-based API, which differentiates it from MobX's observer pattern.The conversation then moves to the future of React development with Waku, which Daishi started as an experiment to learn how state management interacts with React Server Components. He explains Waku is suited for small-to-medium-sized web applications and static sites and discusses his vision for it to coexist with, rather than beat, Next.js.What makes Zustand, Jotai, and Valtio different: Global Store vs. Atom Definitions vs. JavaScript Objects.The philosophical difference between Zustand and Redux: Redux is reducers, Zustand is not.How Jotai's atom concept evolved and its goal of render optimization without selectors.Why Valtio embraced proxies and how its hook-based API differs from MobX.The origin story of Waku as an experiment with React Server Components.How React 18's useSyncExternalStore made Zustand even smaller.The challenge of maintaining four popular open-source libraries, with Waku being the current focus.Daishi’s strategy for rejecting feature requests for minimal libraries like Zustand: "We reject everything".Why Daishi prefers a competitive community over a built-in React state manager.Which of his libraries (Jotai) is best suited for use within Waku, as it is an abstraction of state that works on both client and server.If you're managing global state in React, interested in the internals of popular open-source tools, or curious about the future with React Server Components, this episode is a must-listen.Follow & Subscribe:📸 Instagram: https://www.instagram.com/senorsatscale/📸 Instagram: https://www.instagram.com/neciudev🎙 Podcast URL: https://neciudan.dev/senors-at-scale📬 Newsletter: https://neciudan.dev/subscribe💼 LinkedIn: https://www.linkedin.com/in/neciudan💼 LinkedIn: https://www.linkedin.com/company/se%C3%B1ors-scale/Additional Resources🌐 Daishi's Libraries: https://github.com/pmndrs🌐 Waku: https://github.com/dai-shi/waku🌐 SICP Book: Structure and Interpretation of Computer Programs#react #zustand #jotai #valtio #waku #statemanagement #javascript #opensource #softwareengineering #frontend #webdevelopment #señorsatscaleDon’t forget to like, comment, and subscribe for more engineering stories from the front lines.

Neciu Dan

Hosted by Neciu Dan

Tech Lead, Co-Founder, Speaker

What is Señors @ Scale?

Señors @ Scale features in-depth conversations with senior developers, tech leads, and software architects who share real-world experiences of scaling applications, teams, and their careers. Each episode unpacks the hard-earned lessons from industry veterans who have been in the trenches.

From scaling applications to millions of users, to growing teams from 5 to 500+ engineers, to navigating complex distributed systems - this podcast delivers practical wisdom you can apply immediately in your work.

📻 Never Miss an Episode

Get notified when new episodes drop. Join our community of senior developers learning from real scaling stories.

What You'll Learn

📈 Scaling Applications

  • Checkmark Microservices vs monolith trade-offs
  • Checkmark Database scaling strategies
  • Checkmark Performance optimization techniques

👥 Scaling Teams

  • Checkmark Technical leadership strategies
  • Checkmark Building effective engineering culture
  • Checkmark Mentoring and career development

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🎵 Latest Episode

Episode 24 • 51m

Technical Leadership at Scale with Anemari Fiser (O’Reilly Author and Engineering Coach)

Episode Description:

What makes a great tech lead? It's not just technical chops—it's the soft skills that scale your impact beyond your own keyboard.In this episode, I sit down with Anemari Fiser, an engineering leader, O'Reilly author, and coach who's spent over a decade helping engineers make the leap from individual contributor to technical leader. Anemari has led teams at ThoughtWorks through massive transformations (think monolith-to-microservices, datacenter-to-AWS migrations), coached 500+ engineers, and trained 300+ tech leads worldwide.Her new book, "Leveling Up as a Tech Lead," distills years of hands-on experience into practical frameworks for the hardest role in tech. We explore why so many senior engineers struggle with the transition, how to measure success when you're no longer shipping code, and the collaboration techniques that actually work in real-world teams.This conversation goes deep on the unglamorous but essential work of technical leadership—from running effective 1-on-1s to delegation that empowers rather than bottlenecks, from defining what success means for you to navigating the brutal tech lead job market.🔸 KEY TOPICS DISCUSSED- The journey from software engineer to product director—and what she learned along the way- Why soft skills, not just technical expertise, determine your impact at scale- The critical difference between senior engineers and tech leads- How to transition from "doing the work" to "enabling the work"- Why your success as a tech lead depends entirely on your team's success- The accountability framework that drives consistent growth in others- How to get people out of their comfort zones without breaking trust- The power of intentional growth vs. accidental learning- Measuring impact when you're not writing code anymore- Why 1-on-1s are your secret weapon (and how to run them effectively)- The delegation playbook that removes pressure while empowering your team- Networking strategies that actually work in today's tech job market- How to interview for tech lead roles—and spot the red flags- The collaboration techniques that scale teams beyond individual heroics⏱️ CHAPTERS00:00 Introduction to Anemari Fiser00:58 Early Career: From University to First Tech Job04:09 Balancing Work and University in Romania09:00 First Job Experiences and Learning to Code12:02 The Importance of Accountability in Leadership16:07 Strategies for Encouraging Growth in Others20:03 Intentional Growth and Getting Out of Your Comfort Zone20:56 Scaling Soft Skills in Tech23:57 Senior Engineer vs. Tech Lead: What's the Difference?26:55 Making the Transition from Senior Engineer to Tech Lead29:40 Expanding Your Team's Impact Beyond Your Own Work31:01 The Tech Lead Role Across Different Companies32:32 Balancing Hands-On Technical Work with Leadership34:29 Defining Success as a Tech Lead38:10 Measuring Impact and Setting Personal OKRs42:07 Guiding Junior Engineers: Teaching vs. Enabling43:51 Job Hunting Strategies in the Current Tech Market46:10 Why Networking is Your Best Job Search Tool50:52 Interviewing for Tech Lead Roles: Green Flags and Red Flags53:28 Key Takeaways from "Leveling Up as a Tech Lead"📚 RESOURCES MENTIONED- Anemari's Book: "Leveling Up as a Tech Lead" (O'Reilly) - https://www.amazon.com/[BOOK-LINK]- Crucial Conversations by Kerry Patterson- The Culture Map by Erin Meyer- The Manager's Path by Camille Fournier- Continuous Deployment by Valentina Servile- The Silent Patient by Alex Michaelides🔗 FOLLOW ANEMARI- LinkedIn: https://www.linkedin.com/in/anemari-fiser- Website: https://anemarifiser.com🎙️ FOLLOW & SUBSCRIBE📸 Instagram: https://www.instagram.com/senorsatscale/📸 Instagram: https://www.instagram.com/neciudev🎙 Podcast URL: https://neciudan.dev/senors-at-scale📬 Newsletter: https://neciudan.dev/subscribe💼 LinkedIn: https://www.linkedin.com/in/neciudan💼 LinkedIn: https://www.linkedin.com/company/se%C3%B1ors-scale/

"Deep conversations with senior developers about scaling applications, teams, and careers — real insights from industry veterans."

💡 Takeaways from Previous Episodes

MicroFrontends at Scale with Florian Rappl
Episode 23
69 minutes

Señors @ Scale host Neciu Dan sits down with Florian Rappl — author of 'The Art of Micro Frontends,' creator of the Piral framework, and Microsoft MVP — to explore how micro frontends are transforming how we build scalable web applications. Florian shares hard-won lessons from over a decade of building distributed systems, from smart home platforms to enterprise portals for some of Germany's largest companies.

Nuxt at Scale with Daniel Roe
Episode 22
54 minutes

Señors @ Scale host Neciu Dan sits down with Daniel Roe, leader of the Nuxt Core team at Vercel, for an in-depth conversation about building and scaling with Nuxt, Vue's most powerful meta-framework. Daniel shares his journey from the Laravel world into Vue and Nuxt, revealing how he went from being a user to becoming the lead maintainer of one of the most important frameworks in the JavaScript ecosystem.

State Management at Scale with Daishi Kato (Author of Zustand)
Episode 21
35 minutes

Señors @ Scale host Neciu Dan sits down with Daishi Kato, the author and maintainer of Zustand, Jotai, and Valtio — three of the most widely used state management libraries in modern React. Daishi has been building modern open source tools for nearly a decade, balancing simplicity with scalability. We dive deep into the philosophy behind each library, how they differ from Redux and MobX, the evolution of the atom concept, and Daishi's latest project: Waku, a framework built around React Server Components.

Domain Driven Design at Scale with Vlad Khononov (O'Reilly and Pearson Author)
Episode 20
56 minutes

Señors @ Scale host Neciu Dan sits down with Vlad Khononov, software architect, keynote speaker, and author of Learning Domain-Driven Design and Balancing Coupling in Software Design. Vlad has spent over two decades helping teams untangle legacy systems, rebuild failing architectures, and bring clarity to messy business domains. This conversation cuts through the hype around DDD and microservices, focusing on the mechanics of bounded contexts, coupling, business alignment, and architectural evolution.

Modern CSS at Scale with Bramus
Episode 19
53 minutes

Seniors @ Scale host Neciu Dan is joined by Bramus Van Damme, Chrome Developer Relations Engineer at Google. As a leading voice in CSS and Web UI, Bramus dives into the future of the web, breaking down the mechanics, performance, and cross-browser status of transformative new features like View Transitions, Scroll-Driven Animations, Anchor Positioning, and Custom CSS Functions. He offers a rare look into the inner workings of Chrome DevRel, the standardization process through the CSS Working Group, and how the multi-browser 'Interop' effort is accelerating web development.

Security at Scale – With Liran Tal (Snyk)
Episode 18
57 minutes

Señors @ Scale host Neciu Dan sits down with Liran Tal, Director of Developer Advocacy at Snyk and GitHub Star, to unpack NPM malware, maintainer compromise, MCP attacks, toxic flows, and why AI-generated code is statistically insecure without the right guardrails. Liran shares real incidents from the Node and open source ecosystem, how Snyk and tools like NPQ help developers build safer workflows, and why security at scale starts with developers, not firewalls.

Micro-Frontends at Scale (Part 2) – With Luca Mezzalira (AWS)
Episode 17
1 hour 10 minutes

Señors @ Scale host Neciu Dan sits down with Luca Mezzalira, Principal Serverless Specialist at AWS and author of *Building Micro-Frontends*, to unpack how he helped scale DAZN’s frontend from 2 developers to 500 engineers across 40 devices. Luca shares the origin of micro-frontends, how to build stable application shells, implement zero global state, use guardrails for bundle budgets, and manage migrations at scale through edge routing and team autonomy.

Design Systems at Scale – With Stefano Magni (Preply)
Episode 16
1 hour 4 minutes

Señors @ Scale host Neciu Dan sits down with Stefano Magni, Senior Front-End Engineer and Tech Lead at Preply, to unpack what it takes to build and measure a design system for a global learning platform. From managing technical debt and accessibility to driving a culture of public work and data-driven engineering, Stefano shares lessons from 15+ years in frontend development.

Reliability at Scale – With Bruno Paulino (N26)
Episode 15
1 hour 7 minutes

Señors @ Scale host Neciu Dan sits down with Bruno Paulino, Tech Lead at N26, to explore what reliability really means in FinTech. From server-driven UIs and CI/CD pipelines to AI-assisted customer support and strict compliance, Bruno shares how N26 balances speed, safety, and developer experience to keep millions of users online.

WebFragments at Scale – With Natalia Venditto & Igor Minar
Episode 14
1 hour 2 minutes

Señors @ Scale host Neciu Dan talks with Microsoft’s Natalia Venditto and Cloudflare’s Igor Minar about WebFragments — a new micro-frontend model that isolates JavaScript and DOM at the browser boundary, enables instant SSR through fragment piercing, and lets large teams ship independently without dependency lockstep.

Observability at Scale – With Erik Grijzen
Episode 13
1 hour

In this episode of Señors @ Scale, host Neciu Dan chats with Erik Grijzen — Principal Software Engineer at New Relic — about building one of the first large-scale micro-frontend architectures, the rise of observability, and what technical leadership looks like across dozens of teams.

Accessibility at Scale – With Kateryna Porchienova
Episode 12
40 minutes

In this episode of Señors @ Scale, host Neciu Dan chats with Kateryna Porchienova — Senior Engineering Manager at Buffer — about her programming journey, the craft of animation, and why accessibility should be treated as a foundation of good engineering, not an afterthought.

Rails at Scale – With Adrian Marin
Episode 11
70 minutes

In this episode of Señors @ Scale, host Neciu Dan chats with Adrian Marin — founder of AVO and host of FriendlyRB — about Rails productivity, the magic of Ruby, and how the community continues to evolve through creativity and connection.

Vue at Scale – With Andreas Panopoulos
Episode 10
62 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Andreas Panopoulos — Staff Software Engineer at Hack the Box and co-organizer of Vue.js Athens — to talk about scaling Vue in production, migrating to Nuxt 3, and the human side of engineering.

Frontend Architecture at Scale – With Faris Aziz
Episode 9
72 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Faris Aziz — Staff Front-End Engineer at Small PDF and co-founder of ZurichJS — to talk about scaling frontend systems, the power of BFF architecture, and the human side of engineering culture.

Organizing Conferences at Scale – With Aris
Episode 8
44 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Aris — founder and lead organizer of CityJS — to talk about building developer communities, organizing meetups, and scaling conferences into global events.

Open Source at Scale – With Erik Rasmussen
Episode 7
62 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Erik Rasmussen — creator of Redux Form and React Final Form, and now Principal Product Engineer at Attio — to talk about building open source at scale, developer experience, and the hidden lessons behind shipping tools other developers rely on.

Mentorship at Scale – With Eduardo Aparicio Cardenes
Episode 6
58 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Eduardo Aparicio Cardenes — Front-End Engineer and ADPList Top 100 Mentor — to unpack 15+ years of engineering lessons, the reality of promotions, and what it truly means to mentor and scale as a leader.

React at Scale – With Matheus Albuquerque
Episode 5
58 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Matheus Albuquerque — Staff Frontend Engineer at Medallia, Google Developer Expert, and international speaker — to dive deep into React internals, performance optimization, and the scaling lessons learned from applications used by millions worldwide.

Refactoring at Scale – With Jose Calderon
Episode 4
1 hour and 6 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Jose Calderon — Lead Software Engineer at JP Morgan Chase, conference speaker, and Java/Spring community leader — to dive deep into refactoring vs rewriting at scale, how to track and justify architecture decisions, and the testing strategies that keep enterprise systems reliable.

Pragmatism at Scale – With Tudor Barbu
Episode 3
56 minutes

In this episode of Señors @ Scale, host Neciu Dan sits down with Tudor Barbu — Principal Engineer at Logify, former Tech Lead at Personio and engineer at Skyscanner and DaVinta — to unpack 20+ years of engineering decisions, debugging scars, and career evolution.

Interviewing at Scale – With Angel Paredes
Episode 2
1h 01 min

In this episode of Señors @ Scale, host Neciu Dan sits down with Angel Paredes — Engineering Manager at Datadog, formerly Staff at Glovo and Tech Lead at PayPal — to explore test infra, AI's impact on interviewing, and how to lead without losing your technical edge.

Performance at Scale - With Danilo Velasquez
Episode 1
57 min

In this kickoff episode of Señors @ Scale, host Neciu Dan sits down with Danilo Velasquez — Staff Engineer at Adevinta and longtime frontend performance obsessive.

Discover actionable insights and hard-earned lessons from senior engineers who've been in the trenches.

Why Señors @ Scale?

  • Checkmark Real-world scaling stories from senior engineers and architects
  • Checkmark Deep technical discussions about architecture patterns and trade-offs
  • Checkmark Career insights for developers transitioning to senior roles
  • Checkmark War stories from scaling applications to millions of users
  • Checkmark Leadership and team building strategies for tech leads
  • Checkmark Latest trends in software architecture and system design
  • Checkmark Practical advice you can apply immediately in your work

🎤 Meet Your Host

Neciu Dan
Neciu Dan

Tech Lead, Co-Founder, Speaker with experience scaling applications to millions of users. Dan has worked with teams ranging from startups to enterprise, and is passionate about sharing the hard-earned lessons from the trenches.

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