Florian Lefevre — Lead Tech / Engineering Manager hands-on

Lead Tech on a business agricultural ERP used by 50 to 100 users, in a complex legacy context mixing Angular, Java, Spring 2, PowerBuilder, Oracle 9 and ageing infrastructure. My role covered team support, direct contribution to structural technical topics and progressive modernisation of the application foundation, without service interruption.

• Operational leadership of a team of 3 fullstack developers: sprint organisation, topic clarification, code review and technical trade-offs.
• Frontend modernisation: Angular 15 → 21 migration, DevExtreme update and preparation of a migration to Angular Material, with guardrails and conventions to make both coexist progressively.
• Progressive code quality improvement: TypeScript strict, strict ESLint, Prettier and development conventions.
• Nx standardisation to ease migrations, homogenise practices and prepare future modular Angular/NestJS applications.
• Product collaboration: prioritisation, topic refinement, scope planning and delivery security.
• Incremental legacy modernisation: resolving code/CI/CD blockers, progressive debt reduction and foundation evolution without service interruption.

Software Engineering Manager hands-on on an internal application ecosystem for immigration business plan generation, used by around a hundred internal users. I structured the team, designed the application architecture and industrialised previously highly manual business processes, on a stack of Angular, NestJS, Nx, PHP, Node.js, Python and AWS.

Team & management

• Strengthened, structured and managed an international team of 7 developers, split into 2 squads: fullstack and Python/Data.
• Hiring, onboarding, agile rituals, operational follow-up, one-on-ones and team support.

Architecture & industrialisation

• Designed an ecosystem of 6 applications: Angular applications, a Microsoft Word plugin, a legacy PHP backend, NestJS services, Node.js scripts and Python AI modules for proofreading, correction and document inconsistency detection.
• Shipped a first financial application then progressively industrialised business plan writing tools, replacing manual workflows and legacy tools with dedicated business applications.
• Set up integrations with Microsoft, Google, HubSpot, Wrike and internal tools to synchronise data and secure processes.

Modernisation & delivery

• Hands-on technical ownership: POC, architecture decisions, API integrations, Symfony/PHP to Nx/NestJS migration and evolution security.
• Standardisation of development practices: Nx, schematics, TypeScript strict, ESLint and code conventions to homogenise practices, ease onboarding and secure evolutions.
• Managed CI/CD, deployments, Bitbucket to GitHub migration and Product / Data / Tech trade-offs with the CPO and Data team.

Angular Lead Dev on a critical real estate management application, the backbone of business operations for around thirty users. I held technical frontend responsibility while remaining heavily involved in development, refactoring and structural topics.

Hands-on development

• Development on structural frontend topics: refactoring, complex components, business evolutions, library updates and continuous improvement of the Angular foundation.
• Took ownership of a complex Angular frontend with debt impacting code readability, evolution quality and delivery capacity.

Technical leadership & quality

• Support for 4 to 5 frontend developers: code review, coaching, Angular/RxJS best practices, technical trade-offs and upskilling.
• Frontend roadmap and quality: debt prioritisation, application architecture decisions, TypeScript strict, strict ESLint, development conventions and structured code reviews.

Architecture & delivery

• Introduction of Nx, schematics and NgRx to standardise recurring components, speed up refactoring, clarify state management and reduce unnecessary backend calls.
• Secured frontend delivery: requirement clarification with product, frontend/backend contracts with Swagger, GitLab CI/CD and Cypress / Playwright end-to-end test foundation.

Fullstack PHP/Symfony consultant for a short engagement at Joorney, with rapid onboarding to an existing business application and hands-on code contribution.

• PHP/Symfony development on a business plan generation application.
• Audit of existing code and identification of technical improvement areas.
• Bug fixes, behavioural improvements and delivery of functional evolutions.
• Contribution to application maintainability in a short, operational engagement context.

Fullstack consultant for Scopea on custom developments around the Odoo ERP, with rapid ramp-up on Python and the Odoo framework. Fixed-price engagements, from requirement analysis to production, covering business modules, bug fixes and application evolutions.

• Quick onboarding on the Odoo ecosystem and Python/HTML/CSS development.
• Development of custom business modules to adapt Odoo to client processes not covered by the standard product.
• Participation in requirement gathering, technical solution definition, effort estimation and quote preparation.
• Bug fixes, functional evolutions and full module development per client requests.
• QA, delivery, follow-up and maintenance of deliverables, working alone or in a pair, in a fixed-price, outcome-oriented context.

Angular consultant on a network monitoring web application, focused on frontend development, Angular integration into a legacy foundation, code audit and team support.

• Development and maintenance of Angular modules within an existing application.
• Integration of new Angular modules into a legacy foundation, with attention to consistency with existing code and maintainability.
• Code audit, code review and improvement proposals on frontend topics.
• Technical mentoring of the team on Angular best practices, TypeScript strict, ESLint and development conventions.
• Built dashboards with Highcharts, integrating charts, tables, advanced parameters and aggregated data output.

Senior developer and frontend lead on a network monitoring web application, as part of a structural AngularJS to Angular migration. The engagement focused on rebuilding the frontend foundation, improving maintainability and modernising development practices.

• Major contribution to the AngularJS → Angular migration, carried out on a substantial application with many modules, pages and components.
• Introduction of TypeScript strict, ESLint and Angular/RxJS best practices to strengthen reliability, readability and maintainability.
• Development and maintenance of customisable dashboards with Highcharts and D3.js, on data-rich interfaces with performance constraints.
• Contribution to customisable PDF report modules, with accurate rendering constraints between web usage and export.
• Frontend lead role within the team: code reviews, best practice sharing and support on the Angular foundation.
• Occasional Java development to reinforce the backend team on cross-cutting topics.

Frontend developer on a network monitoring web application in AngularJS, with strong constraints around data visualisation, performance and output as customisable dashboards and reports.

• Development and maintenance of an AngularJS application used by several hundred users.
• Built customisable dashboards integrating Highcharts charts, tables and advanced configuration forms.
• Built the schedulable PDF report design module, with accurate rendering constraints between web usage and export.
• Rapid onboarding on AngularJS, frontend best practices and maintainable development principles in a demanding environment.

Fullstack developer then technical lead on Canal+ interfaces for set-top boxes and web platforms, in a mission-critical context with high availability and very high user volumes. Built a solid production culture: performance, resilience, multi-platform support, cross-team coordination, monitoring and high-stakes releases.

Development & production

• Development and maintenance of PHP/Smarty, JavaScript, HTML, CSS and MySQL applications, used across many platforms: set-top boxes, web, smartphone and tablet.
• Operating in a high-volume environment, with peaks reaching several hundred thousand simultaneous users and several million during major events.
• Contribution to interfaces with strict performance, availability, accessibility, multi-language and multi-hardware compatibility constraints.

Coordination & delivery

• Product / QA / Infrastructure coordination: test tracking, bug prioritisation, release note authoring, monitoring, cross-team communication and release orchestration.
• Supervised high-stakes releases on a distributed architecture of approximately 24 servers, with progressive deployments, testing phases, monitoring follow-up, rollbacks and hotfixes when needed.

Technical projects & lead

• Led the migration from 32-bit to 64-bit servers: technical scoping, POC, application adaptations, test coordination, cross-team follow-up and production rollout.
• SVN to Git migration, discovery and integration of set-top box / internet box APIs, support of validation environments and mentoring of new joiners on the legacy application and release processes.

Six-month intern within the ADAM team at INRIA, on the topic Bridging Software-Oriented Architecture with the Internet of Things, focused on modelling CBRN crisis procedures using a SOA/SCA approach and BPEL orchestration.

• Work split between research, modelling and technical prototyping in several languages.
• Wrote a detailed internship report: state of the art, architecture, crisis processes and experimentation findings.

Engineering intern at EADS Cassidian, working on the design and development of a Java/J2EE web documentation platform.

• Application development in Java/J2EE, HTML, CSS and jQuery.
• Production of the internship report, architecture diagrams, database diagrams and technical documentation.

Web developer on client projects carried out through the EISTI Junior Enterprise, building client sites in PHP, HTML, CSS, vanilla JavaScript and jQuery.

• Developed a website for a travel agency and a showcase site for a glazing company.
• First client experience: web integration, adapting to requirements and delivering simple sites.