Daniel (Maqueda) M.
Founding Database Engineer
Experience
Founding Database Engineer
tonbo.io
Working on the next iteration of tonbo to make it the most flexible in-process analytical database in the market that scales and is operated with strong availability
Introduced object scope cache to the remote storage layer to avoid IO churn
Working on refactoring WAL to support remote storage operations taking care of the health of the systems as well as designing the operational story and bringing them to production
Tech Lead
super.ai
- Led a team of 6 to deliver the new flows storage and messaging product
- Designed authentication and all backend flows with an emphasis on serverless systems
- Built the websocket to power the table view for real-time updates, leading to signing two new customers
- Responsibilities: design, documentation, refinement, delivery
- Technologies: AWS/GCP, Python (backend), Supabase
Tech Lead
Trade Republic
- Drove the execution of multi-accounts and local branches for the Customer Platform team
- Delivered local branch migration migrating 800k customers from non-German jurisdictions (first France)
- Led 6 other teams plus my team of 15 cross-functional engineers (mobile, web, backend)
- Responsibilities: design, documentation, refinement, delivery
- Technologies: AWS, Java and Kotlin (backend), Kubernetes, Kafka, RabbitMQ
Software Development Engineer
AWS
- Designed and delivered a service to enable instance attestation in the scope of hardware encryption in EC2 Enclaves using AMD SEV-SNP technology
- Worked in a team of three, mentoring two engineers
- Maintained the Rust client
- Responsibilities: design, documentation, refinement, delivery
- Technologies: AWS (Lambda, SQS, S3, DDB), Java (backend), Rust
Rust Database Engineer
Sap
- Developed SIGNAL, a custom process mining query engine with an SQL-like query language, in Rust
- Worked on scalability improvements and new operators (joins)
- Technologies used: Rust, Apache Arrow, Apache Parquet, AWS services
Software Development Engineer
AWS
Metering: developed microservices to meter the usage of service teams in AWS Billing
Pricing: maintained four Pricing Systems with a focus on deprecating the old relational database
Discounts: designed, developed and delivered a service to automate discounts (starting with EDPs)
Collaborated with Product, Management and Customers to define the product from the beginning
Mentored junior developers in a team of 8–10
Responsibilities: design, documentation, refinement, delivery
Technologies: AWS (Lambda, SQS, S3, DDB), Java, Kotlin, Scala
Software Developer
Sap-Datango
- Developed a one-page cross-browser web application in JavaScript, HTML and CSS with JSON as the data exchange format
- Built a cross-browser rich text editor in JavaScript
- Developed and maintained MVC and component JavaScript framework to handle cross-browser issues
- Technologies: JavaScript, CSS, HTML
Full-Stack Developer
HERE Maps
- Full-stack JavaScript developer in the Connected Driving space
- Collected, transformed and presented internal sources to drive decisions based on data
- Technologies: Node.js, Angular, PostgreSQL
Software Developer
Sap-Datango
- Developed a one-page cross-browser web application in JavaScript, HTML and CSS with JSON as the data exchange format
- Built a cross-browser rich text editor in JavaScript
- Developed and maintained MVC and component JavaScript framework to handle cross-browser issues
- Technologies: JavaScript, CSS, HTML
Various
Various
- 3 years as an R&D Engineer managing R&D projects for Indra and Telefónica
- 1 year as a Full-stack developer with Java on the backend
- 1 year as a Test Engineer at Telefónica
- Technologies: Java, Android, JavaScript, CSS, HTML
Summary
I am a Software Development Engineer with close to 20 years of experience, the most significant as a backend developer working with distributed systems at scale and database internals. Distributed Systems with multiple components working together at scale.
Languages
Education
UNED
Philosophy · Madrid, Spain
Universidad Complutense
Diploma in Software Engineering, focus on Artificial Intelligence · Software Engineering · Madrid, Spain
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