J

José

CTO (Fractional)

VerifiedVerified by our team for expertise and quality
Available
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Sweden
16 years of experience
Previously atPreviously at

Skills

Languages

SwedishFluent
EnglishFluent
SpanishFluent

About

Senior Software Engineer and architect with extensive experience in full-stack product development across frontend, backend systems and connected devices. Experienced technical mentor, with a strong focus on coaching engineers. Significant domain experience in IoT, streaming platforms, and medical systems, including systems with high availability and regulatory constraints. Proficient in Node.js, React, C#, and scoped professional experience with Rust and Kotlin.

Work Experience

Hands-on Engineering Manager

2022 - 2025

Aira

Responsible for building the initial backend systems and IoT application layer. Designed architecture for IoT data ingestion and device control. Developed internal tooling for IoT operations. Implemented application layer in Rust to connect hardware devices with the cloud. Created system module to control hardware LED strip. Developed React-based tooling for teams to experiment with LED strip. AWS, Kubernetes, Kotlin, PostgreSQL, Rust, AWS IoT, Spring Boot.

Founding Engineer / CTO

2019 - 2022

Ally

Health-tech startup digitalizing doctor visits. Designed system architecture, implemented backend, built back-office and hospital web applications, KPI/metrics system, travel optimization algorithms in Python, ensured legal compliance. C#, .NET Core, Node.js, Python, React, Google Cloud, Azure, Kubernetes, Docker.

Lead Software Engineer

2014 - 2019

Viaplay

Technical leader for web platform. Assured sustainability, safety, efficiency, monitoring, product evolution, and migration of legacy systems. Migrated system to React. Implemented streaming web player for live/VOD, Chromecast player, pay-per-view, live TV. Migrated legacy to backend-for-frontend architecture.

Senior Full-Stack Software Engineer

2014 - 2019

Viaplay

In charge of web clients and adjacent backend systems. React.js, Redux, React Sagas, AWS, Node.js, DynamoDB.

Senior Front-end Developer

2012 - 2014

Cloudnine

Developed technical solutions with designers for customers including BMW, Hallon, Sybilla, Investor AB, Kungl. Ingenjörsvetenskapsakademien, Postkodlotteriet, Svenskt trä. WordPress, jQuery, HTML5, CSS.

Junior Developer

2010 - 2011

Odelay

Developed in-house CMS solution. E-commerce and website development for several customers. Ruby On Rails, CSS, HTML5, jQuery.

Junior Front-end Developer

2010 - 2011

Squace

Developed several web-based solutions. Java, CSS, HTML5, jQuery.

Education

I.E.S. Francisco Ayala, Granada

Sep 2008 - Jul 2010

Técnico Superior en Desarrollo de Aplicaciones Informáticas

KT

Jan 2017 - Jan 2017

Cybersecurity Analysis

University of Washington

Feb 2017 - Feb 2017

Machine Learning Foundations: A Case Study Approach

ABF Stockholm

Jan 2014 - Jan 2014

Svenska Som Andraspråk 1, 2 and 3 - Svenska C

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