Senior Application Technical Lead

We are looking for a Senior Application Architect / Technical Lead to contribute to the design, evolution, and implementation of a large-scale digital platform.

The successful candidate will play a key role at the intersection of application architecture, software development, and technical stakeholders. Working closely with the Solution Architect, this person will take high-level architectural requirements and decisions, translate them into concrete technical requirements, application designs, patterns, and implementation guidelines, and communicate them effectively to development teams.

The role combines application design, technical leadership, architecture, and developer enablement, with a strong focus on Front-End architecture and Cloud technologies.

Responsibilities

• Work closely with the Solution Architect to understand business and technical requirements, architectural directions, and key design decisions, and translate them into clear technical specifications and implementation guidelines for development teams.
• Act as the bridge between architecture and development, ensuring that architectural concepts, constraints, and decisions are clearly understood and consistently implemented.
• Guide and support developers in applying architectural principles, standards, design patterns, and technical guidelines.
• Provide technical guidance and resolve complex technical challenges encountered during implementation.
• Contribute to the definition, maintenance, and evolution of the target application architecture, considering scalability, availability, security, performance, and resilience.
• Design and evolve modern Front-End architectures using React, TypeScript, Next.js, and Micro Frontend approaches.
• Define and evolve distributed Front-End ecosystems using technologies and patterns such as Module Federation, shared component libraries, and Design Systems.
• Translate business and technical requirements into application architectures, technical specifications, standards, patterns, and implementation roadmaps that enable development teams to move efficiently from design to execution.
• Design and recommend integration patterns using REST APIs, GraphQL, events, and distributed architectures.
• Contribute to the design and implementation of Cloud Native solutions on AWS, including serverless services and Edge distribution capabilities.
• Lead application performance initiatives across the different layers of the platform, including the client, CDN, APIs, and serverless services.
• Analyze performance issues and identify bottlenecks affecting user experience, responsiveness, rendering, scalability, and platform reliability.
• Define performance standards, KPIs, monitoring mechanisms, and optimization roadmaps.
• Provide technical leadership across multiple development teams and contribute to technical decisions, architectural standards, and technology roadmaps.
• Collaborate with Product, Engineering, Infrastructure, Cybersecurity, and DevOps teams to ensure end-to-end technical consistency.
• Contribute to the evolution of CI/CD, DevOps, automation, and release governance practices.
• Create and maintain application architecture documentation, technical diagrams, architectural decisions, standards, and implementation guidelines.
• Ensure that security, accessibility, high availability, observability, and performance principles are considered throughout the solution lifecycle.
• Evaluate emerging technologies, tools, and approaches and recommend solutions that improve scalability, maintainability, reliability, and operational efficiency.

Required Expertise

Qualifications

• Minimum 10 years of software development experience in large-scale enterprise environments.
• Minimum 5 years of experience in a Senior Technical Lead, Application Architect, Principal Engineer, Technical Designer, or equivalent role.
• Significant experience designing and implementing application architectures in complex and distributed environments.
• Advanced expertise in React, TypeScript, JavaScript (ES6+), Next.js, HTML5, and CSS3.
• Strong hands-on experience designing and implementing Micro Frontend architectures, particularly using Module Federation.
• Experience with REST APIs, GraphQL, and distributed integration patterns.
• Strong experience with AWS and serverless architectures.
• Good understanding of microservices, event-driven, and asynchronous architectures.
• Strong expertise in application performance optimization, including Core Web Vitals, caching, scalability, and resilience.
• Good understanding of architecture principles related to security, Web accessibility (WCAG), and high availability.
• Experience with CI/CD pipelines, DevOps practices, and automated delivery processes.
• Demonstrated ability to translate architectural directions and requirements into clear, actionable technical guidelines for development teams.
• Excellent communication skills and the ability to simplify and explain complex technical concepts to different audiences.
• Ability to influence technical stakeholders and provide technical leadership across multiple development teams.

Nice-to-Have

• Experience with high-volume, customer-facing digital platforms.
• Knowledge of SSR, SSG, ISR, and Edge Rendering.
• Experience with Storybook, Jest, React Testing Library, and Cypress.
• Knowledge of Headless CMS and composable architectures.
• Experience with Docker and Kubernetes.
• Experience with Design Systems, shared component libraries, and component lifecycle governance.
• Familiarity with DevSecOps practices and enterprise technology governance frameworks.
• Relevant certifications in architecture, Cloud, or related technologies.
• English-speaking or bilingual (French/English).

Technology Environment

React, TypeScript, JavaScript, Next.js, Node.js, HTML5, CSS3, AWS, AWS Lambda, API Gateway, CloudFront, S3, REST APIs, GraphQL, Module Federation, Micro Frontends, Microservices, Event-Driven Architecture, Serverless, Git, Jenkins, CI/CD, Docker, Kubernetes, Jest, Cypress, React Testing Library, Storybook.