Jaime Casero
Director Of Enterprise Architecture at 1NCE
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolJaime Casero is a Director of Enterprise Architecture based in Madrid with 20+ years designing and scaling high-performance real-time systems across telecommunications, VoIP, messaging and IoT. He combines deep protocol-level expertise (SIP, SMPP, RCS, MRCP, IMS) with cloud-native practices, having led rearchitectures to serverless and microservices, automated delivery pipelines, and data migrations to DynamoDB and Kafka-driven async flows. Jaime has driven platform-level decisions—encryption, provisioning, API user management and long-running workflows—while mentoring teams on testing, observability and progressive deployments like canary and percentage-based rollouts. He is an active contributor to the RestComm SIP/IMS/WebRTC ecosystem, improving core routing and backend usability on a widely used open-source telecom application server. Known for blending low-level telecom protocols with modern DevOps and AWS tooling, he excels at translating operator-grade requirements into resilient, scalable architectures.
11 years of coding experience
22 years of employment as a software developer
Ingeniería Superior en Informática Ingeniería del Software, Ingeniería Superior en Informática Ingeniería del Software at Universidad Pontificia de Salamanca
English, French, Spanish
Stackoverflow
391reputation
202kreached
21answers
1question
Github Skills (11)
javas10
java10
tomcat8
annotations8
annotate8
jersey6
deduplication6
restcomm6
netbeans6
testing6
jax-rs6
Programming languages (8)
Github contributions (5)
RestComm/sip-servlets
Jun 2015 - May 2018
Leading SIP - IMS - WebRTC Application Server
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 173 commits, 32 PRs in 2 years 11 months
Contributions summary:Jaime primarily contributed to the back-end aspects of the project, focusing on the implementation of features and enhancements related to the application routing and management interface. They added platform-specific fields, implemented a header regex condition to address an issue and also tested the router with the added header parameter. Moreover, the user reworked the application routing module's configuration submission to use POST requests, increasing the amount of information transmitted. These modifications indicate an effort to refine and enhance the application's functionality and usability.
application-serversipwebrtc
RestComm/jain-sip.ext
Dec 2016 - Jun 2018
JAIN-SIP-Ext provides extensions done by TeleStax, Inc. for some features that are not supported by the main jain sip stack, like DNS Support (RFC3263).
Contributions:9 commits, 2 PRs, 8 pushes in 1 year 5 months
dnssip
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