Fabien Bontemps

Freelance Architect, Cloud & DevSecOps

Salary / Daily rate

Nantes, France

Freelance

Can come onsite

Skills

MicroservicesJavaDevOpsAWSSite reliability engineeringHexagonal ArchitectureMongoDBDomain Driven DesignCassandraElasticsearchKafkaAWS LambdaPostmanSwagger/OpenAPIPrometheusLinuxTech LeadEvent Driven ArchitectureSpring BootKubernetesTomcatGitSite Reliability EngineerDockerDevOps EngineerJiraRESTful APIsGraphQLA/B TestingPostgreSQLGitLabJenkinsSolutions ArchitectAmazon EC2GrafanaMavenCloud ArchitectTerraformMySQLConfluenceOracle DatabaseKanbanScrumTrainingConsulting IT

Languages

French (Native)English (Fluent)

About me

Intro

With over 20 years of experience as an architect, I am an expert in Cloud and DevSecOps, helping companies define and implement robust, secure, and scalable architectures. My services: - Architecture & move-to-cloud. - Technical & security audit: performance, quality, and best practices. - CI/CD, FinOps, and industrialization. - Coaching & technical support: team skills development, technical leadership. - Operational support & delivery.

Links

Work experience

Solution Architect

NickelFreelance

Jan 2026 - Present

10 months

Nantes, France

• Architecture solution scope & definition • RFI/RFP • Cloud, DevOps & Platform Engineering

Coach SRE

PMUFreelance

Jan 2026 - Jun 2026

6 months

Paris, France

- Building the company's SRE strategy (governance, action plan & IT Steering Committee presentation) in a SAFe environment. - Prioritizing scopes based on value stream analysis via LeanIX.

DevOps Senior

CCF GroupFreelance

Aug 2025 - Dec 2025

5 months

Nantes, France

- Infrastructure definition with Terraform - Deployment automation with Gitlab CI - Deployment of KafkaUI on EKS & AWS MSK cluster tuning - EMR Serverless optimization & Spark jobs on Scala - Release management support & methodology

DevOps & Kubernetes expert

TeamWillFreelance

Apr 2025 - Jul 2025

4 months

Remote

• Full Kubernetes solution, based on Spring Boot micro-services, Api management (Kong) & Kafka. • CI/CD implementation for TeamWill solutions (Gitlab CI, ArgoCD, ECR, Nexus, SonarQube, DependencyTrack) • Installation & industrialization of the solutions (Terraform, EKS, GitHub, TeamCity, Artifactory) for end customers

Hands-on Software Architect, DevSecOps

TakeTurns

Dec 2021 - Mar 2025

3 years 4 months

Remote

Architecture (design, studies and implementation) : - High availability EKS-based architecture. - Event-Sourcing, Apache Cassandra & Apache Pulsar. - CQRS & AWS OpenSearch. - Cloud AWS multi-regions. - Microservices Java/Kotlin, Spring Boot & Spring Cloud. - Monitoring & Tracing (Prometheus, Grafana, Loki, OpenTelemetry). - OAuth2 & OIDC (AWS Cognito). - API Gateway. infrastructure management (AWS & Infrastructure as Code). Infrastructure cost optimization of 45 % (FinOps). Release management & operations. Continuous integration & deployment (IaC CDK, Helm & scripting). Zapier, CRM integration. DevSecOps / Cloud Security & certification SOC2 Type II.

Solution Architect - Product Architect

TIBCO

Jun 2019 - Dec 2021

2 years 7 months

Paris, France

- Definition, development and implementation of TIBCO Cloud Metadata. - Solution Architect, development manager & Release manager. - Metadata Asset Management built on TIBCO EBX. - Spring Boot, DevOps, Cloud AWS.

Managing Solution Architect / Technical Manager

Capgemini

Apr 2015 - Jul 2019

4 years 4 months

Nantes, France

Managing Solution Architect in Capgemini Financial Services. Bank & Insurance clients. Near Shore Center Technical Manager (> 300 people) . Technical management & recruitment. Developers training & support. Technical solutions & software architecture definition. Industrialization and process management, DevOps & agility. Java/JEE expert, audits & training. Manager for the Software Engineers & Architecture communities. Main projects : - MDM domain for BNP Paribas (TIBCO EBX, JEE, Websphere, DevOps). - Collective Insurance (Groupama Nova) (ITN Cleva, JEE, JBoss, Spring batch, DevOps). - SAB core banking solution for HSBC. (JEE, DevOps). - Full docker CI implementation for BCV (Gitlab, Jenkins, SonarQube, Nexus). - 89C3 : Datalake feeding for BPCE (Hadoop). - Re-platforming program for Crédit Agricole (z-OS to distributed system).

Java EE Architect

Sopra Steria

Jan 2013 - May 2015

2 years 5 months

Nantes Area, France · On-site

Technical Architect (multiple missions) - Java/JEE Training & developers management. - Architecture consulting & audit. - Pre-sales. - Project support (requirements definition, IDEs , best practices). - Technology watch. - Recruitment support.

IT Solutions Architect

SNCF Voyages

Oct 2010 - Jan 2015

4 years 4 months

Nantes Area, France · On-site

IT Solutions Architect - SNCF Voyages - Multi-projects transversal architect. - Project Managers support and technical management. - Architecture deliverables & technical notes. - Invoice dematerialization and archiving with probative value. - Applications using Voyages SNCF customers datawarehouse (Marketing & Fraud management). - Exchange urbanization & accounting feeding to SAP. - BI management (regularity, fraud, sales, etc.). - DRP implementation. - Architecture & urbanization referent for projects. - Technical supervision & validation in collaboration with Ops. - Definition, management, RFP & RFI for strategic architecture.

Java EE Architect

Informatique Banques Populaires

Jul 2005 - Oct 2010

5 years 4 months

Nantes Area, France · On-site

- Architecture definition, conception & development of transactional publishing solution for Banques Populaires. - Technical architecture definition. - UML conception & development (JEE/Webservices/ESB) - Tuning & quality measurement. - Tooling (integration, APM, statistics, Continuous Integration). - Nirva Integration Platform. - Adobe LiveCycle ES.

Java EE Architect

La Poste

Aug 2004 - Jul 2005

1 year

Nantes Area, France · On-site

- Web/Java EE Component optimization - Technical expertise & support on internal projects. - Technology watch and POCs on several APIs (POI, Hibernate, Castor, JUnit, etc.) - POO/Java/JEE/Struts/Design Patterns trainer. - Continuous Integration (Cruise Control, Ant & CVS).

Java EE Software Engineer

Degetel

Aug 2000 - Aug 2004

4 years 1 month

Paris Area, France · On-site

Fimasys - Profinance - Java/JEE Conception & development. - Applicative maintenance and specific client developments. RSA - members data management. - Applicative Framework optimization - Java Business objects implementation. Natexis-Banques Populaires : OPCVM Portal - Project management consulting. - Architecture consulting. - JEE Prototype conception & development. Thales - CashWare - Solution development for a Datacenter. - Conception, development and solution integration (Java/PKI).

Software Engineer

Arcorp

Oct 1999 - Aug 2000

11 months

Paris Area, France · On-site

Synagir : Projects & HR management - Weblogic/Servlets. Projects using agile RAD methodology - VB/Access

Software Engineer

CGBI

Mar 1998 - Oct 1999

1 year 8 months

Metz, France

Sofinco/Sollac/Crédit Agricole - COBOL/CICS/JCL/Pacbase developments.


Education

AWS

AWS Solution Architect Associate

2025 - 2025

1 month

TOGAF 9

2017 - 2017

1 month

PSM1 (scrum.org)

2016 - 2016

1 month

Télécom SudParis

Technical Architect

2014 - 2014

7 months

Université de Technologie de Compiègne (UTC)

Ingénieur

1992 - 1997

5 years 1 month


Licenses & certifications

AWS Certified Solutions Architect – Associate

Issued: Feb 2025

Certified by Amazon Web Services (AWS)

TOGAF 9 Certified

Issued: Aug 2017

Certified by The Open Group

SAB Core Banking

Issued: Aug 2016

Certified by SAB is now SBS

PSM 1

Issued: Jun 2016

Certified by Scrum.org

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