Roberto Navas

323 Flips | 23 Magazines | 25 Likes | 2 Following | 18 Followers | @rcnavas | Just another old Nerd

European banking app Monese scores $60M Series B led by Kinnevik

The large amounts of cash that is being invested in challenger banks in the U.K., whether that be startups with a fully fledged banking license or those using the less burdensome e-money regulations, shows no signs of abating. The latest banking fintech to raise a substantial new round is …

Financial Services

Five ways to build a $100 million business

Some time ago my friend (and co-investor in Clio, Jobber and Unbounce) Boris Wertz wrote a great blog post about "the only 2 ways to build a $100 …

The Mission Matrix: How to build the ultimate B2B SaaS go-to-market strategy

The Mission Matrix helps you plan and build a B2B SaaS go-to-market strategy! It helps early stage startups and established SaaS companies get set up …

Evolution of a Product

Products evolve over time; the characteristics of an early-stage product are quite different from those of a mature one. For strong products, the …

This chart shows every major technological innovation in the last 150 years — and how they have changed the way we work

LONDON — Humanity is always moving forward with innovation after innovation improving global quality of life.<p>The last 150 years have seen the most remarkable advancement of technology in history. Electric lighting, cars, plastic, the telephone, and television are all less than 150 years old, while …

7 tough lessons people often learn too late in life

Life lessons are full of wisdom because they often have to be learned the hard way. However, the hardest part about that process is realizing that sometimes not every opportunity lasts forever. You finally "get it" long after the fact.<p>If possible, it's best to learn these things sooner rather than …

Building a Coffee Map with React Native

The young web developer knows the web. They have spent countless hours slinging divs and casting margins. They have hammered out countless to-do …

A study of more than 100,000 people has found that one food group is closely linked with cancer

If scientists told you there was a single lifestyle factor that may best predict whether you get cancer, you'd want to know, right?<p>Researchers in France may have found just that. After studying more than 100,000 adults for years, they found that eating processed food was more closely linked with …

Investors, here’s how to evaluate startups in a post-GDPR world

The EU’s General Data Protection Regulation (GDPR) comes into force in May and will radically change how companies collect, store, manage, and use data. A shockingly high number of businesses are still unaware or simply not ready for GDPR. As a startup investor, you can’t afford to be ignorant of …

Spot Instance Requests

To use Spot Instances, you create a Spot Instance request that includes the number of instances, the instance type, the Availability Zone, and the …

Cloud Computing

A Tesla employee who builds robots told us why production hell is actually a good thing

<i>Editor's note: Business Insider had the chance to speak with four Tesla employees from different parts of the company to learn more about their work. And what we discovered were some of the coolest jobs at Tesla. This is the fourth in the series. You can read the other profiles here.</i><p>Engineers are …

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Build Services on a Backbone of Events

For many, microservices are built on a protocol of requests and responses. REST etc. This approach is very natural. It is after all the way we write …

The Venture Capital Math Problem

Yesterday Albert and I visited one of the investors in our fund. The good news is they are happy with the job we are doing. The bad news is they are …

Venture Fund Economics: Gross and Net Returns

The comments on my initial post on this topic went right at the VC’s compensation – management fees and carry – and their impact on returns. So at …

VC Fund Economics

Charlie O’Donnell, who was our first analyst at USV and who now runs his own VC fund, wrote a post yesterday outlining the economics of running a …

Our Model

This past week our portfolio company MongoDB went public. I think that occasion presents an opportunity to talk about USV’s model.We are a small …

Introducing React Food Truck

There are many important questions to ask when you are building an application. Questions like: “Who are the users?”, “What browser will they use to …

JavaScript

What IBM looks for in a data scientist

Job seekers sometimes ask how IBM defines “data scientist.” It’s an important question since more and more would-be data scientists are fighting for attention in an increasingly lucrative labor market.<p>The first step is to distinguish between what we see as true data scientists and other …

How Etsy caches: hashing, Ketama, and cache smearing

At Etsy, we rely heavily on memcached and Varnish as caching tiers to improve performance and reduce load. Database and search index query results, …

Cloud pricing comparison: AWS vs. Microsoft Azure vs. Google Cloud vs. IBM Cloud

<i>Kim Weins is vice president of cloud cost strategy at RightScale.</i>As major cloud providers (AWS, Azure, Google, and IBM) continue to drop the prices …

This $60M Startup Shares How They Built One of the Top Engineering Teams in SF (Hint: It's Not Just About Technical Talent)

Codementor Blog<p>Published Sep 11, 2017Last updated Sep 12, 2017<p>Product DevelopmentTeam ManagementThought Leadership<p>Related Articles<p>Mar 10, 2017<p>31 Tips …

The Dangerous Seduction of the Lifetime Value (LTV) Formula

September 4, 2012:<p>Many consumer Internet business executives are loyalists of the Lifetime Value model, often referred to as the LTV model or …

RFC 7636 - Proof Key for Code Exchange by OAuth Public Clients

The meeting that showed me the truth about VCs

Tomer Dean Contributor<p>Tomer Dean is a serial tech entrepreneur currently based in Tel Aviv. He is co-founder and CEO of Bllush.<p>I recently had a meeting with a well-known Israeli startup investor. The talk somehow pivoted from my seed-seeking startup into talking about the macro view of venture …

Machine Learning Crash Course: Part 1

06 Nov 2016 | Daniel Geng and Shannon Shih<p><b>Introduction, Regression/Classification, Cost Functions, and Gradient Descent</b><p>Machine learning (ML) has …

Streaming Messages from Kafka into Redshift in near Real-Time

This post is part of a series covering Yelp's real-time streaming data infrastructure. Our series explores in-depth how we stream MySQL updates in …

Analysis of Software Architectures

Presentation can be found at Software design principles for evolving architectures. <b><br>Layered architecture</b> is the most common architecture. It is also …

Complete Beginner’s Guide to Information Architecture

Information architecture is a task often shared by designers, developers, and content strategists. But regardless of who takes on the task, IA is a …

Is REST Best in a Microservices Architecture?

During my journey into microservices, it has become apparent that the majority of online sample/howto posts regarding implementation focus solely on …