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Miguel Carranza

Miguel Carranza
My role as a founder CTO: Year Five It’s hard to believe that five years have already gone by since RevenueCat’s inception. In a matter...
over a year ago
61
over a year ago
It’s hard to believe that five years have already gone by since RevenueCat’s inception. In a matter of weeks, RevenueCat will become the company where I have worked the longest in my career. As Jason Lemkin says, it’s important to continuously reinvent the company and oneself...
Miguel Carranza
Full Circle I’m back in Spain for my brother’s wedding. I rarely visit during the summer. The heat in my...
5 months ago
55
5 months ago
I’m back in Spain for my brother’s wedding. I rarely visit during the summer. The heat in my hometown is brutal, around 40 degrees Celsius (over 100 Fahrenheit for my imperial friends). Most people escape to the coast, just like my family did when I was a kid. I haven’t been here...
Miguel Carranza
My role as a founder CTO: Year Seven 2024 has come and gone, and it’s time for my annual post. What a year for startups—like squeezing...
a month ago
43
a month ago
2024 has come and gone, and it’s time for my annual post. What a year for startups—like squeezing five regular years into one. Do you remember the Apple Vision Pro, the DMA regulation, founder mode, or the o1 launch? All of that happened in just the last twelve months. It’s also...
Miguel Carranza
Working with Miguel: A Practical Guide Since reading ‘High Growth Handbook’ by Elad Gil, the value of writing a ‘Working with’ document...
a year ago
37
a year ago
Since reading ‘High Growth Handbook’ by Elad Gil, the value of writing a ‘Working with’ document became crystal clear to me. I am sharing mine externally to inspire other founders and leaders to reflect and write down their own working styles. These documents are incredibly...
Miguel Carranza
From J1 visa to Blue Passport: A startup founder's immigration journey I am drafting this post at 35,000 feet flying back from Japan. I’ve entered the US about 30 times,...
10 months ago
37
10 months ago
I am drafting this post at 35,000 feet flying back from Japan. I’ve entered the US about 30 times, but this will be the first time I’ll be using my shiny blue passport. No anxiety about aggressive questions, secondary inspection, or the possibility of deportation. A couple of...
Miguel Carranza
My role as a founder CTO: Year Six Another year as a founder CTO, and let me tell you, it’s been one for the books. I can’t remember a...
a year ago
31
a year ago
Another year as a founder CTO, and let me tell you, it’s been one for the books. I can’t remember a time in my life that was more demanding and emotionally draining. Those early years were filled with hard work, but we were also full of energy, ambition to build, and the sense...
Miguel Carranza
The first five employees The main figures of the startup ecosystem are founders and investors. The incentives are not always...
over a year ago
30
over a year ago
The main figures of the startup ecosystem are founders and investors. The incentives are not always aligned, and sometimes there is a notable lack of gratitude. But, for the most part, it’s a symbiotic relationship. Founders benefit from capital, and VCs need access to the best...
Miguel Carranza
Books I read in 2020 Growing up, I was never an avid reader. I remember I enjoyed some expanded universe Star Wars books....
over a year ago
25
over a year ago
Growing up, I was never an avid reader. I remember I enjoyed some expanded universe Star Wars books. But that was about it. Even reading The Lord of the Rings or easier to digest books like Harry Potter would be a struggle. It was not until I started getting access to technical...
Miguel Carranza
Evolution of my role as a founder CTO There is a lot written about the importance of scaling as a founder in a fast-growing startup. Most...
over a year ago
25
over a year ago
There is a lot written about the importance of scaling as a founder in a fast-growing startup. Most of it focused on the CEO role. The generic advice on leadership also applies to other non-CEO roles, but I could not find a lot of content targeted to technical founders. In fact,...
Miguel Carranza
How NOT to apply to Y Combinator Getting into Y Combinator in 2018 was a defining event in the history of RevenueCat. It was also...
over a year ago
22
over a year ago
Getting into Y Combinator in 2018 was a defining event in the history of RevenueCat. It was also quite impactful for Jacob and me as founders. I want to believe we would still be around even if we had not gotten into YC, but I am sure the company would not be where it is today....
Miguel Carranza
My role as a founder CTO: Year Four It has been one year since I wrote the blog post where I shared the learnings from the first three...
over a year ago
22
over a year ago
It has been one year since I wrote the blog post where I shared the learnings from the first three years of my journey as a first-time technical founder. 2021 was not an exception, and my role as RevenueCat’s CTO kept evolving quite a lot. As expected, my job did not get any...
Miguel Carranza
2020 University of Seville CS Commencement speech I was wrapping up an interview when I got a Twitter DM from Pablo. It was an invitation to give the...
over a year ago
19
over a year ago
I was wrapping up an interview when I got a Twitter DM from Pablo. It was an invitation to give the commencement speech for the University of Seville’s CS School, where I studied. Wow, I was not expecting that at all. I was humbled and very excited to help as much as I could and...
Miguel Carranza
Technical debt isn't evil Technical debt is a concept originally introduced by Ward Cunningham, one of the authors of the...
over a year ago
18
over a year ago
Technical debt is a concept originally introduced by Ward Cunningham, one of the authors of the Agile Manifesto. There are multiple interpretations of what technical debt is, but I am going to focus on the financial debt metaphor. Like financial debt, technical debt is something...
Miguel Carranza
The privilege of free education There are 50 public universities in Spain. The majority of Spanish students end up attending the...
over a year ago
18
over a year ago
There are 50 public universities in Spain. The majority of Spanish students end up attending the closest school to their family home. A particular degree not being taught nearby, or not getting in (mostly due to the limited number of seats) are the main exceptions for traveling...
Miguel Carranza
Effective code review Fortunately, I don’t think the necessity of code review is a controversial topic these days for most...
over a year ago
16
over a year ago
Fortunately, I don’t think the necessity of code review is a controversial topic these days for most tech companies1. However, it is not always implemented as well as it should. In this post, I will describe some practices that I try to follow when opening pull requests, and that...