Marc Riera CITP

HPC and AI infrastructure architect. Hands-on, and has led.

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Summary

I design, build and run HPC, GPU and storage infrastructure. At Bull, from 2011 to 2014, I installed and accepted HPC clusters with Slurm, InfiniBand and Lustre, starting with a GPU cluster at the Barcelona Supercomputing Center. At EMBL-EBI I led the teams behind a 150PB+ active archive and an estate of 4,500+ Linux servers and VMs, with eight direct reports, about 20 engineers influenced and an annual infrastructure budget of about £1m. I am looking for a senior or principal architect role, permanent or contract. The CV has the detail; email me at marc@riera.co.uk for anything else.

AvailabilityStart by January 2027; permanent or contract

BasedCambridgeshire, UK; London hybrid

StandingCITP MBCS, awarded August 2026

Contactmarc@riera.co.uk

150PB+Active archive, from about 15PB

4,500+Linux servers and VMs

60 to 75GbpsSustained transfer, from 10 to 16Gbps

70%Lower DR total cost of ownership

2011first GPU cluster installed (BSC MinoTauro)

§ 01 · Delivery record

What I was accountable for at EMBL-EBI, and what changed.

About 15PB to 150PB+ active

The active archive grew from about 15PB at ownership handover to more than 150PB, with about 400PB of raw storage underneath.

Transfer services

40 mount points to 3; 80 Globus installations to 3

Tickets fell from close to 100 a week to a handful a month. Effective throughput rose from 10 to 16Gbps to a sustained 60 to 75Gbps.

Disaster recovery

Tape DR tender, about £250K

The tender secured about £250K and cut DR total cost of ownership by 70%.

Identity

5,000+ federated users, six EMBL sites

Privileged administrators reduced from about 50 to 3.

Experience and credentials are on riera.co.uk and in the CV (PDF).

§ 02 · Contact

Open to senior architect and technical leadership roles, permanent or contract. Ask for more information.

Email marc@riera.co.uk → CV Download CV (PDF) ↓ LinkedIn linkedin.com/in/joanmarcriera → Profile riera.co.uk →