Jose Navalon, Developer in Eindhoven, Netherlands
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Jose Navalon

Bio

Jose is a seasoned senior back-end developer with a master's in computer science. He has over a decade of expertise in back-end software engineering, microservices architecture, cloud computing (AWS, Azure, GCP), and high-performance systems. Jose is well-versed in Node.js and Java, developing and optimizing scalable, secure, and efficient back-end solutions. Jose consistently demonstrates expertise in implementing DevOps best practices and optimizing API performance and reliability.

Portfolio

Advertise Purple
Amazon Web Services (AWS), Angular, Node.js, Redshift
Tokeny
Node.js, MongoDB, Amazon Web Services (AWS), Ethers.js, Web3.js
Football Index
Java, Kotlin, Micronaut, Apache Kafka, Amazon Web Services (AWS)

Experience

  • Java - 15 years
  • NoSQL - 8 years
  • Agile - 8 years
  • Node.js - 6 years
  • AngularJS - 6 years
  • Spring Boot - 5 years
  • Docker - 4 years
  • Angular - 4 years

Preferred Environment

Node.js, JavaScript, TypeScript, AWS IoT, Python

The most amazing...

...project I've worked on is a diagnosis machines solution, using big data and microservice architecture, including the solution-matching core algorithm.

Work Experience

Senior Full-stack Developer

2021 - PRESENT
Advertise Purple
  • Developed and maintained Node.js microservices in JavaScript/TypeScript.
  • Managed AWS infrastructure (EC2, ECS, SNS, SQS, SES, IAM, S3) with Terraform.
  • Led CI/CD pipeline automation, reducing deployment time by 40%.
  • Worked with MySQL, Amazon Redshift, and Elasticsearch to enhance data search efficiency.
Technologies: Amazon Web Services (AWS), Angular, Node.js, Redshift

Senior Software Engineer

2019 - 2025
Tokeny
  • Designed and developed scalable Node.js microservices using JavaScript/TypeScript.
  • Implemented Smart Contracts on Ethereum, Polygon, and Avalanche.
  • Integrated Ethers.js and Web3.js for blockchain interactions.
  • Optimized AWS cloud infrastructure (ECS, SNS, SQS, Lambda) using Terraform, reducing cloud costs by 30%.
  • Enhanced PostgreSQL and MongoDB query performance, achieving 50% faster response times.
Technologies: Node.js, MongoDB, Amazon Web Services (AWS), Ethers.js, Web3.js

Senior Software Engineer

2017 - 2019
Football Index
  • Built services using Kotlin, Micronaut, Java, and Spring Boot.
  • Integrated with Nasdaq FIX and ITCH protocols for financial transactions.
  • Managed AWS cloud infrastructure (EC2, SNS, SQS, Lambda, RDS, SES) with Terraform.
  • Optimized PostgreSQL, MongoDB, and Elasticsearch queries for faster data retrieval.
Technologies: Java, Kotlin, Micronaut, Apache Kafka, Amazon Web Services (AWS)

Senior Software Engineer

2015 - 2017
ASML Holding
  • Created enterprise-level services using Java + Spring Boot.
  • Spearheaded API performance improvements, reducing latency by 35%.
  • Designed and developed the solution as a team member, focusing on designing and implementing the main code services (content gateway service, expert knowledge worker, user experience service, and SDT front-end UI).
  • Implemented using Spring Boot 2; made extensive use of Spring Cloud and Kafka.
  • Ensured that the suite was a success. It currently runs on several main customer sites: Samsung Korea, Samsung China, SK Hynix, and Intel.
  • Used Kafka to store temporarily the massive data coming from the machines which improved the diagnosis process and the UI timeline experience by 85%.
  • Improved the matching algorithm so that it is able to provide a solution for a failed task in 400 milliseconds, among 300,000 possible solutions, and an average of 70 symptoms per expert rule/archived fault.
Technologies: Spring Cloud, Spring Boot, Node.js, Angular, Java, Amazon S3 (AWS S3)

Senior Software Engineer

2013 - 2015
SPS Commerce
  • Created with a team, a message communication broker, and an application to receive/send messages from/to EDI to/from customer systems.
  • Developed the part that focused on the main message processor service, output dispatcher service, and the administration web application.
  • Implemented Spring Boot 1.x and extensively used the Netflix ecosystem to run multiple instances and provide fault tolerance and high performance.
  • Developed, in a team, the solution, focusing on creating new workflow activities and new transformation microservices to transform data dynamically from a data source (database, Excel files, and so on) into a customizable ontology output (XML, JSON).
  • Built the remanufacturing project, PREMANUS, an application to show and modify data with publisher/subscriber functionality. It also provides REST web services.
  • Designed and developed the solution, focusing on transforming source data and notification of data changes to other subscribed remote applications.
  • Designed and developed solutions to create new add-ins and deliver enhanced communication modules for the message broker system.
  • Enabled the message communication broker to use a micro-service approach, allowing the running of multiple instances of every component and providing isolation from each other.
  • Introduced an in-memory NoSQL Redis database for the queue cache, improving performance by 50%.
Technologies: Spring Cloud, Spring Boot, Node.js, AngularJS, Java

Experience

Football Index

Built a real-money fantasy football trading platform where users can buy and sell shares in footballers, leveraging their football knowledge to profit through market movements and dividends. Successfully implemented a microservices architecture, integrated with NASDAQ, and deployed the system on AWS for scalability and reliability.

T-REX Platform

https://tokeny.com/t-rex-platform/
The award-winning fintech provides compliant tokenization with the open-source ERC-3643 token standard and advanced white-label software solutions for financial institutions. The enterprise-grade platform and APIs unify fragmented onchain and offchain workflows, integrating essential services to eliminate silos to enable seamless issuance, transfer, and management of tokenized securities.

Designed and developed scalable Node.js microservices using
JavaScript/TypeScript, PostgreSQL, MongoDB databases, and AWS infrastructure.

T-Rex Engine

https://tokeny.com/t-rex-engine/
A robust suite of APIs and developer tools enabling advanced on-chain finance capabilities.

I contributed to an award-winning fintech platform that offers compliant tokenization using the open-source ERC-3643 token standard and delivers sophisticated white-label solutions for financial institutions. The enterprise-grade platform streamlines fragmented on-chain and off-chain workflows by integrating essential services, enabling seamless issuance, transfer, and management of tokenized securities.

Designed and implemented scalable Node.js microservices using JavaScript/TypeScript, integrating Ethers.js and Web3.js for blockchain interactions. Deployed infrastructure on AWS and managed data with PostgreSQL and MongoDB to ensure high availability and performance.

Advertise Purple

http://www.advertisepurple.com/
Affiliate marketing remains the most cost-effective performance revenue channel for eCommerce businesses, delivering dollar-for-dollar profitability. With over nine years of proven success in affiliate growth and program management for top-tier eCommerce brands, we bring the expertise, strategy, and dedication needed to maximize revenue and elevate your brand across the world’s leading consumer platforms.

Engineered and maintained scalable Node.js microservices using JavaScript/TypeScript, which were deployed on AWS infrastructure. Managed and optimized data pipelines with MySQL, Amazon Redshift, and Elasticsearch to support high-performance analytics and real-time insights.

IP Digital NL Signage

https://ipdigital.nl/digital-signage-software/
Digital Signage as it should be: start for free and only pay for what you need and use. With the new useful functions within Signage Solutions 3.0, you can now create, manage, and publish content faster and easier, anywhere and anytime via the cloud.

• Smart Publication Service
• Node.js development
• MongoDB database management
• RabbitMQ queues

Alphatronsignage.com

https://www.alphatronsignage.com/digitale-informatievoorziening-voor-passagiers/reisinformatie
Our travel information functionality lets passengers easily track the vehicle's location, view upcoming stops, and check expected arrival times. Whether it is a bus, metro, train, or any other type of vehicle, Alphatron Signage ensures that passengers are always aware of where they are and where they are going.

In addition, we provide comprehensive transfer information so passengers can effortlessly plan and transfer to other forms of public transport. Whether it’s a bus, train, metro, ferry, or plane, our system provides detailed information on departure times and the best routes to travel seamlessly from one vehicle to another.

SPS Commerce EDI

https://www.spscommerce.com/products/fulfillment/edi/
All your necessary documents like orders, shipping notices, invoices, and inventory updates from every channel—brick and mortar, eCommerce, and marketplaces—are available through one easily navigated dashboard. Fulfillment gives you a single place to check on what’s happening with your business in real time, so you can see what stage every order is in, right now.

Education

2005 - 2009

Master of Science Degree in Computer Science

Valencia Polytechnic University - Valencia, Spain

Certifications

MAY 2022 - PRESENT

Machine Learning: Recommendation Systems in ML

MIT Professional Education

Skills

Libraries/APIs

Node.js, Hystrix, React, Apigee, Web3.js

Tools

AWS SDK, Git, Travis CI, Puppet, Vagrant, Bamboo, Confluence, Apache Maven, Gradle, GitHub, GitLab, Bitbucket, Jenkins, Jira, Trello, Sequelize, Mongoose, Apache ZooKeeper, Eureka, Zuul, RabbitMQ, IntelliJ IDEA

Languages

Java, JavaScript, TypeScript, Go, Python, C#.NET, C++, Kotlin

Frameworks

Angular, Spring, Spring Boot, AngularJS, Koa, Express.js, Angular Material, Micronaut

Paradigms

Agile, Concurrent Programming

Platforms

Windows, Linux, MacOS, AWS Lambda, Docker, Kubernetes, Java EE (Jakarta EE), Netflix, Oracle, Apache Kafka, Firebase, Heroku, Amazon Web Services (AWS), Visual Studio Code (VS Code), Blockchain, Mender, Azure, AWS IoT

Storage

MongoDB, NoSQL, PostgreSQL, MySQL, SQL Server 2016, SQL Server 2012, MySQL/MariaDB, Redis, Amazon S3 (AWS S3), Microsoft SQL Server, Redshift, Elasticsearch

Other

Spring Cloud, Apache Cassandra, Cloud, Axios, Streaming Data, Software Architecture, Software Design, Ethers.js, Web3, Amazon Redshift, Machine Learning, Recommendation Systems

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