Senior AI & ML Engineer/Researcher

Jeffrey
Redondo

PhD · Computer Science · Northumbria University

Designing reinforcement learning systems that make real decisions in real environments. 10+ years bridging networks, optimization, and applied AI.

RL
Barcelona, ES Available for roles
0+
Years in distributed systems
0
Publications — conferences & journals
0+
GitHub projects across AI & systems
0+
Engineers & researchers led
Scroll

Where networks
meet intelligence

My career started where systems push their limits — field deployments of LTE networks across Latin America, chasing interference in the spectrum, debugging 3GPP protocol stacks. That foundation shaped how I think: distributed, constrained, real.

Over time I moved from configuring networks to teaching them. I now design reinforcement learning algorithms for environments where decisions happen in milliseconds and the cost of a wrong choice is measurable. My PhD research at Northumbria University focused on multi-agent RL for vehicular networks and 5G edge computing, and today at Iquadrat I build production-grade RLOps pipelines that carry those ideas into hardware-in-the-loop deployment.

I'm drawn to roles where AI systems thinking, technical leadership, and delivery excellence come together — Tech Lead, Engineering Manager, or AI Project Leadership. Currently contributing to Horizon Europe and SNS JU research programmes at Iquadrat, working at the intersection of 6G network intelligence and applied AI.

Currently exploring

Agentic AI architectures and LLM-powered systems for intelligent orchestration in distributed infrastructure. Active contributor to Horizon Europe and SNS JU projects. Open to senior IC and leadership opportunities in AI/ML engineering.

Technical
Expertise

Spanning the full spectrum from theoretical RL formulations to production deployment — with a strong foundation in optimization, distributed systems, and telecommunications.

01
Reinforcement Learning

Single-agent and multi-agent RL for stochastic, resource-constrained, and dynamic environments. Policy generalization, stability, convergence analysis.

Single-Agent RLMulti-Agent RLMARLPolicy OptimizationGym
02
MLOps / RLOps

End-to-end pipelines from experiment design to production. Simulation-to-hardware validation, reproducible evaluation frameworks, and model lifecycle management.

RLOpsMLOpsTensorFlowJenkinsHIL Validation
03
LLMs, RAG & Agentic AI

Hands-on projects in RAG pipelines (embeddings, vector databases, retrieval), autonomous agentic systems, TF-IDF, OpenAI API integration, and LLMOps workflows.

RAGEmbeddingsAgentic AILLMOpsOpenAI APITF-IDF
View LLM projects on GitHub →
04
5G / 6G & Edge AI

Resource allocation, dynamic scheduling, V2X, latency-aware offloading for edge computing. Deep familiarity with 3GPP standards and network intelligence.

5G NRV2XEdge ComputingOMNeT++NB-IoT
05
Systems & Optimization

Stochastic modeling, Markov processes, numerical optimization. Translating mathematical formulations into validated computational models.

Markov ProcessesOptimizationSimulationPythonC++
06
Technical Leadership

Led teams of 10+ engineers at Ericsson. Agile backlog ownership, Lean Six Sigma Yellow Belt, research mentorship, cross-functional stakeholder management.

Lean Six SigmaAgileTeam LeadMentoring

ML Systems & Performance

Built &
shipped

Applied AI projects spanning LLM pipelines, agentic systems, and engineering tools — all publicly available on GitHub.

LLM · RAG · Agentic AI
LLMOps · RAG
LLMOps — Embeddings & Retrieval Explained

A practical breakdown of the full RAG pipeline — from raw text to grounded LLM responses — covering embeddings, vector databases, and context generation.

  • Embeddings: text → semantic vectors
  • Vector databases for similarity search
  • Chunk retrieval & LLM context generation
NLP · RAG · OpenAI
NLP Exploration: TF-IDF & LLM-based RAG

Experiments contrasting classical NLP (TF-IDF) with modern RAG using OpenAI GPT — combining embeddings and retrieval to answer queries with grounded information.

  • TF-IDF for document relevance scoring
  • RAG pipeline with OpenAI embeddings + GPT
  • Direct comparison of retrieval methods
Agentic AI · API Calls
Agentic AI Customer Support System

An autonomous agent that handles billing issues end-to-end — querying databases, making refund decisions, and resolving problems via API calls without human intervention.

  • Natural language understanding of complaints
  • Database retrieval + autonomous decisions
  • End-to-end resolution via API actions
Agentic AI · RL · RAG
Agentic AI System — Task Manager & RL

Dual-scenario agentic system: task completion agent and email organizer with TF-IDF vectorization, RAG knowledge retrieval, and a methodology comparison notebook.

  • Task agent + email organizer scenarios
  • TF-IDF vectorization for email parsing
  • RAG integration for knowledge-augmented decisions
Agentic AI · ChatGPT · Personalisation
Agentic AI — Language Study Generation with Bible Content

An agentic AI system powered by OpenAI's ChatGPT that generates personalised language lessons from domain-specific content — demonstrating how knowledge can be dynamically transformed into structured educational material.

Research & Engineering Tools
NB-IoT Interference Management
MSc thesis — interference evaluation in heterogeneous networks via MATLAB simulation. Basis for later field trial publication.
NB-IoT Drive Test Tool (C#)
WPF tool communicating with BG96 Quectel via AT commands; captures GPS coordinates and generates coverage log files.
NB-IoT LTE BG96 — TalTech
Embedded software for reliable BG96 connectivity to eNB. PSM & low-power mode analysis for IoT power consumption research.
Digital Twins — Winter School
Arduino + Unity environment replicating hand movements in a physical car — an early applied Digital Twins implementation.
GPS Tracking via LoRa / Dora Network
Android app visualising IoT device locations connected to a Dora cloud network in real time.
Telecom System Simulator (MATLAB)
Complete telecommunications system simulator built during undergraduate studies at Universidad del Norte, Colombia.

15 years of
building things
that actually work

Nov 2024 — Present
Iquadrat
Barcelona, Spain
Senior Researcher &
Applied AI Engineer
  • Designed and deployed RL-based AI decision systems for optimization and control in distributed infrastructure, emphasizing policy transferability and robustness.
  • Built AI-enabled automation frameworks for 5G/6G dynamic resource allocation, scheduling, and network orchestration.
  • Developed end-to-end RLOps workflows from experimentation to production, including simulation, emulation, and hardware-in-the-loop validation.
  • Contributing to EU-funded research under Horizon Europe and SNS JU (Smart Networks and Services Joint Undertaking), focusing on AI-driven optimization for next-generation 6G network intelligence.
  • Supporting competitive EU funding proposal writing — translating research vision into structured technical and scientific deliverables for international calls.
  • Mentored senior researchers and PhD students at Iquadrat, contributing to technical strategy, research planning, and innovation direction.
RLRLOps5G/6GPythonTensorFlowHIL
Oct 2021 — May 2025
Northumbria University
Newcastle, UK
PhD Candidate —
Computer Science (AI & Networking)
  • Developed single-agent and multi-agent RL algorithms for decision-making in stochastic, dynamic, and resource-constrained distributed systems.
  • Designed simulation-integrated ML/RL frameworks coupling TensorFlow/Gym with OMNeT++ for high-fidelity, reproducible experimentation.
  • Applied stochastic modeling, Markov processes, and numerical optimization to guide learning-based policies in vehicular and edge-computing environments.
  • Served also as Laboratory Demonstrator (2022–2024): mentored students in OOP, databases, networking, OS, and wireless simulation.
Multi-Agent RLOMNeT++V2XEdge ComputingGym
Aug 2020 — Aug 2021
Ericsson
Estonia
Test Product Owner /
Technical Project Manager
  • Owned delivery of test software platforms across multiple projects; led a team of 10 engineers.
  • Applied Lean Six Sigma Yellow Belt to optimize delivery processes, reduce bottlenecks, and improve workflow efficiency.
  • Managed Agile backlogs, defined technical scope and roadmap from concept through release.
  • Performed data analysis on production databases to resolve system issues and improve test coverage.
Lean Six SigmaAgileTeam Leadership5G
Aug 2019 — Aug 2020
Ericsson
Estonia
Test Development Engineer — Radio
  • Developed experimental ML models to predict and prevent test equipment faults, improving reliability and reducing downtime.
  • Built C#/C++ test software for RF devices, enhancing calibration and performance metrics.
  • Automated RF instrument workflows, significantly reducing test cycle time. Conducted LTE/5G RF testing ensuring 3GPP compliance.
MLC#/C++LTE5GRF Testing
2015 — 2019
Airspan Networks
Caribbean & Latin America
LTE Network Customer Service Engineer
  • Led LTE projects and trials across the American continent, coordinating a team of 3–4 engineers, configuring and debugging networks for multiple operators.
  • Developed software for KPI monitoring and investigated protocol-level bugs, reporting findings directly to R&D.
LTE3GPPKPI Analysis
2012 — 2015
Ericsson / Dico Telecom
Barranquilla, Colombia
RF Optimization Engineer
  • Led the LTE optimization group; supervised network planning and deployment of LTE sites in Barranquilla. Coordinated a field engineer during coverage campaigns on behalf of Telefonica.
  • Built tooling to monitor KPIs; discovered and implemented a new LTE feature to accelerate 4G re-attachment after voice calls.
RF OptimizationLTENetwork Planning

Published
Work

Peer-reviewed contributions at the intersection of reinforcement learning, vehicular networks, and 5G resource optimization. Published at journals, and conferences.

2024 — IEEE TNSE
Multi-Agent Assessment With QoS Enhancement for HD Map Updates in a Vehicular Network and Multi-Service Environment
IEEE Transactions on Networks Science and Engineering
2024 — IEEE WINCOM
Coverage-Aware and Reinforcement Learning Using Multi-Agent Approach for HD Map QoS in a Realistic Environment
11th International Conference on Wireless Networks and Mobile Communications
2024 — IEEE GLOBECOM
Bridge to Real Environment with Hardware-in-the-loop for Wireless Artificial Intelligence Paradigms
IEEE Global Communications Conference
2023 — IWCMC
Cross-layer Adaptable Contention Window for High-definition Map QoS Enhancement
IEEE Conference Proceedings
2022 — IWCMC
Performance Analysis of High-Definition Map Distribution in VANET
Vehicular Networks & Communications
2019 — TalTech
NB-IoT Network Field Trial: Indoor, Outdoor and Underground Coverage Campaign
International Conference Proceedings

Academic
Foundations

2021 — 2025
PhD, Computer Science — Networking & AI
Northumbria University, Newcastle, UK
2017 — 2019
MSc, Communicative Electronics (Telecommunications)
TalTech – Tallinn University of Technology, Estonia
2018 — Erasmus
MSc Courses — Communication Systems
Chalmers University of Technology, Sweden
2015 — 2016
MBA — Innovation & IP
EUDE / Universidad Politécnica de Cataluña, Spain
2006 — 2011
BEng, Electronic Engineering (Telecommunications)
Universidad del Norte, Colombia

Awards &
Recognition

  • Lean Six Sigma Yellow Belt — Ericsson
  • DevOps with Jenkins
  • Design Patterns in C++: Creational
  • Software Testing Foundations: Test Management & Planning
  • Learning Regular Expressions

Let's
build
something
new.

Open to senior AI/ML engineering roles, technical leadership, and applied research collaborations. Based in Barcelona, open to remote.

Jeffrey Redondo
PhD · AI Engineer · Barcelona