Alexandre Rieux

CTO

London, United Kingdom12 yrs 6 mos experience
Most Likely To SwitchAI Enabled

Key Highlights

  • Transformed engineering function to in-house team.
  • Achieved 5x sales growth through product improvements.
  • Expert in architecting scalable distributed systems.
Stackforce AI infers this person is a SaaS and Healthcare-focused Engineering Leader with expertise in scalable systems and team management.

Contact

Skills

Core Skills

Product ManagementEngineering LeadershipTechnical LeadershipData EngineeringSystems DesignFullstack DevelopmentEvent Driven ProgrammingMicroservicesFrontend DevelopmentUser Experience (ux)

Other Skills

Agile MethodologiesAlgorithmsAmazon BedrockAmazon Web Services (AWS)Anthropic ClaudeApache KafkaChrome ExtensionsContinuous Integration and Continuous Delivery (CI/CD)Data StructuresDatadogDesign PatternDjangoDockerExtract, Transform, Load (ETL)Functional programming

About

Product-minded engineering leader with 10 years of experience scaling teams and delivering impactful solutions in startups and scaleups. At Hertility, I transformed the engineering function from outsourced to a high-performing in-house team of 10 engineers, driving 5x sales growth through strategic product improvements. Specialist in architecting distributed systems on AWS, optimising product performance, and building strong engineering teams that deliver results. Known for bringing technical excellence that translates into scalable platforms, enhanced customer experiences, and improved business metrics. Passionate about solving challenges in tech for good companies through data-driven leadership.

Experience

Ben

Engineering Lead

Jul 2024Present · 1 yr 8 mos · London Area, United Kingdom · Hybrid

  • Managing a team of 5 fullstack and mobile engineers across the U.K. and Germany
  • Building AI gen features to improve employee experience and key business metrics.
  • Led the build of a payroll system providing benefits payroll data to high profile businesses (Mondelez, Trainline, Fevertree ...)
  • Led the build of multiple product features required for the launch of big clients.
  • Made multiple improvements to the backend and frontend codebase for better observability and to provide an API contract between frontend and backend using OpenAPI and Orval.
DjangoPython (Programming Language)Amazon BedrockRetrieval-Augmented Generation (RAG)React.jsReact Native+10

Beams

Head of Engineering

Mar 2024Jul 2024 · 4 mos · London Area, United Kingdom · Hybrid

  • Provided technical insight to the C level team
  • Oversaw and line managed two senior engineers
  • Designed and delivered changes to the product part of the sales funnel leading to improved CPL and CPC and increased sales
  • Improved the infrastructure, implementing automated deployment pipelines, enhancing system reliability, and optimising performance metrics across the platform.
  • Adapted and localised a complex codebase provided by a US company to the EU market.
  • Made multiple backend and database changes to adapt a codebase inherited by another business to Beams.
  • Made multiple retool dashboards to enable the ops team to operate the product efficiently and to provide sales and marketing insights.
Amazon Web Services (AWS)Engineering LeadershipNext.jsPostgreSQLTechnical LeadershipTypeScript+2

Hertility

Head Of Engineering

May 2022Mar 2024 · 1 yr 10 mos · Greater London, England, United Kingdom

  • Restructured the engineering team from outsourced to two teams (10 engineers) in-house to streamline delivery.
  • Managed the delivery of multiple products and critical features simultaneously leading to 5x growth in sales in 2022 and 2x in 2023, including rebuilding a checkout flow improving funnel metrics.
  • Built an engineering culture and framework leading to high retention and high engagement.
  • Designed and orchestrated the migration to a new highly scalable distributed system on AWS (ECS / Fargate / Terraform / Lambda).
  • Managed engineering budget, hiring process and hiring pipeline.
  • Engineering point of contact to the COO, CEO and Head of Product.
  • Introduced multiple engineering standards leading to better platform observability and ensuring 99.9% SLA.
  • Worked closely with the growth department to ensure high performance of our landing pages, high SEO ranking and improved growth metrics.
Amazon Web Services (AWS)GraphQLTerraformMicroservicesNext.jsTypeScript+11

Cf consulting

Technical Lead (EM)

Jul 2021May 2022 · 10 mos · Greater London, England, United Kingdom

  • Architected and led the development of a data platform handling a large amount of healthcare data built on Python, React and AWS (Athena).
  • Built an engineering and data career framework.
  • Managed and grew two teams of software engineers, data engineers, data scientists and product designer.
  • Led the delivery of multiple high impact projects and two new ML products for the NHS.
  • Worked closely with executives to establish the strategy of the tech teams within a consultancy business.
Amazon Web Services (AWS)PostgreSQLPython (Programming Language)React.jsProject DeliveryData Engineering+8

Kaluza

2 roles

Principal Engineer (SE5)

Promoted

Nov 2020Jul 2021 · 8 mos

  • Appointed to contribute to the development of the Kaluza control room tool with a team of 4 engineers and designer used to discuss a £200 millions investment.
  • Defining the company data strategy including source of truth, discoverability and data resilience, GDPR compliance
  • Providing technical insight on the product strategy
  • Providing technical support to multiple teams (~20 engineers)
  • Orchestrating technical improvements across multiple teams
  • Building Kafka internal tooling
  • Ensuring adoption of new platform tooling
  • Building and maintaining event driven services
  • Building the company API strategy
GraphQLGoogle Cloud Platform (GCP)Node.jsPostgreSQLGo (Programming Language)Kubernetes+7

Senior fullstack engineer

Jul 2019Nov 2020 · 1 yr 4 mos

  • Joined as the first engineer to setup a new team of 5 data scientists, software engineers and designers. We are building data streams to enable devices within our network to charge and discharge in response to energy trading signals.
  • Helping with cross team communication, architecture design and technical estimation of stories.
  • Building and maintaining event driven services using Kafka, NodeJS and Python.
  • Building and maintaining scalable, self contained and immutable infrastructures for our services: Terraform, Kubernetes, Helm
  • Using Cloud computing technology: Google cloud platform (GCP), functions, containers ...
  • Setting up and maintaining monitoring, alerting and other data analysis: Grafana, Kibana, Bigquery, Prometheus
  • Using different tools for data persistence: Big Query, PostgresSQL, Kafka low compacted topics, Redis, Google data store
  • Helping with Frontend UIs: React, Redux, Typescript
KubernetesTerraformPython (Programming Language)TypeScriptReact.jsApache Kafka+5

Citysprint

Technical Team Lead

Mar 2018Jun 2019 · 1 yr 3 mos · London Area, United Kingdom

  • Technical leadership of the frontend projects of Citysprint and Onthedot within a team of 6 frontend developers.
  • Implementing cross functional team by providing support for frontend developer to learn server side engineering.
  • Sprint planning / functional break down of stories and epics into technical tasks.
  • Guiding team with the best engineering practices (tests, CI, CD, monorepo, types, component reusability, software architecture).
  • Improved significantly the team efficiency, from weekly releases to daily.
  • Built a white label booking platform (https://booking.citysprint.co.uk and https://booking.onthedot.com)
  • Built complexe internal web applications
  • Built Golang and NodeJS micro services
Amazon Web Services (AWS)TypeScriptGo (Programming Language)React.jsEngineering LeadershipGolang+5

Trainline

Senior Frontend Engineer

Sep 2016Mar 2018 · 1 yr 6 mos · London Area, United Kingdom

  • Setup the foundation of a new React desktop application powering trainline.com.
  • Mentored and onboarded ~20 engineers on Frontend matters.
  • Built 2 internal React libraries, widely used and later released OSS with 500+ stars on Github.
  • Integrated a Frontend team in Paris after the acquisition of Capitaine Train into Trainline’s practices.
  • Contributed to the deployment of the new platform leading to better conversion and increase in revenue.
TypeScriptNode.jsReact.jsUser Experience (UX)RxjsContinuous Integration and Continuous Delivery (CI/CD)+4

Dpd uk

Frontend Engineer

Oct 2015Sep 2016 · 11 mos · London Area, United Kingdom

  • Built a fleet management dashboard handling large amount of realtime data.
React.jsFunctional programmingImmutable.jsWebSocketNotificationUser Experience (UX)+2

Groupe regards

Front End Developer

Sep 2014Sep 2015 · 1 yr · Rennes , France

  • Front-end development : BackboneJs, MarionetteJs, UnderscoreJs, RequireJs, Browserify, Q.js and others animations libraries as D3js, Snapsvg, VelocityJs ...
  • Single Page Application development
  • NodeJs environment
  • API REST
  • Mobile development : Cordova (iOS / Android) with some Objective-c adaptations.
  • Agile software development technique : SCRUM and Kanban

Kelbillet

Front End Developer

May 2014Sep 2014 · 4 mos

  • Development of professional portable application on iOS (Objective-c, Cocoapod, Testflight)
  • User interface design for mobile and desktop
  • Front-end development : Javascript, Html, Css
  • Wordpress development : PHP, Javascript

Réél-radio

Technical Authority in Radio

Sep 2012Jul 2013 · 10 mos · University of Québec in Outaouais

  • Shell development, Linux environment, Software architecture with internal server.
  • Team management
  • Wordpress development (PHP, Javascript, Html, Css)
  • Mobile Design for web application
  • Graphic identity design (logo, identity guidelines ...)

Airbus

Corporate Designer Trainee

Apr 2012Jun 2012 · 2 mos · Toulouse, France

  • Airbus Tv redesign on Illustrator and Photoshop.
  • Vector design of 2 Airbus Corporate Jets

Education

IMIE

Master's Degree

Jan 2014Jan 2015

Université Rennes 2

Master's Degree

Jan 2013Jan 2014

Université du Québec en Outaouais

Bachelor's degree — Design and Integration of Multimedia Products

Jan 2012Jan 2013

Université Paul Sabatier Toulouse III

Two-year university degree in technology — Multimédia and Internet Professions

Jan 2010Jan 2012

Stackforce found 100+ more professionals with Product Management & Engineering Leadership

Explore similar profiles based on matching skills and experience