Job Description

Senior Fullstack Application Developer

Our Vision

PSL Group is a global organisation dedicated to putting information at the service of medicine. The companies and people of the PSL Group aim to improve medical care by serving those who need it, those who provide it and those who seek to improve it.

To this end, we want our information and education services to contribute to the goals we share with our clinicians, clients and supporters, namely: to accelerate the advancement of medicine and help people enjoy better, longer lives.

Purpose

Our key contribution to society is to help clinicians and those who support them provide state-of-the-art medical care.

Our primary business purpose is to help clients and supporters increase the effectiveness of activities pertaining to scientific communication, medical education and the maintenance of clinician audience intimacy.

We are looking for a Senior Fullstack Application Developer to lead the design and development of complex web applications that leverage the power of Generative AI You will be responsible for crafting both the user-facing frontend and the robust backend logic, integrating LLM services such as OpenAI’s GPT-4o, Google Vertex AI, Claude, Deepseek, and more. Ideal candidates are proactive engineers who thrive in cloud-native environments and are comfortable making architecture decisions across the stack. You’ll collaborate closely with cross-functional teams to create performant, scalable, and intuitive applications in a fast-paced, highly communicative, innovation-driven environment.

What You Will Do

• Build modern, responsive web interfaces using React (v18/19), TypeScript, and Yarn
• Translate complex UI/UX designs into clean, responsive code
• Write unit and functional tests; maintain high code coverage and code quality.
• Design and develop scalable and secure backend APIs using NodeJS and Python
• Architect, deploy and maintain serverless applications on AWS using Lambda, DynamoDB, API Gateway, and related services.
• Integrate third-party services and GenAI APIs for intelligent application behavior.
• Implement and maintain website optimizations including, front-end performance techniques, CDN usage, caching strategies and efficient media handling.
• Proven delivery of highly performant, scalable stacks – frontend and backend.

Technical Skills

• Languages & Frameworks:
• JavaScript, TypeScript, Vite, Python, NodeJS, React, Redux, Express.js, HTML5, CSS3 (SASS/SCSS)
• Cloud & DevOps:
• AWS services (Lambda, API Gateway, DynamoDB, Cognito, S3, CloudWatch, etc.), Serverless Framework or AWS SAM
• CI/CD tools (CodePipeline, CodeBuild, GitHub Actions, etc.)
• Databases:
• PostgreSQL, MySQL, DynamoDB, RDS
• Tooling:
• Git, GitHub, Yarn, Vite, Webpack, Babel, NVM/NPM
• AI assisted development, skills, MCP, agents, agentic coding cli tools.
• GenAI Ecosystem (preferred):
• OpenAI GPT-4o, Google Vertex AI, AWS Bedrock models

Additional

• Experience with Next.js, React Native, Vercel, RTK, Tanstack
• Exposure to Figma, Sketch, or other design tools
• Familiarity with monorepos, Lerna, and modular architectures
• Knowledge on Infrastructure as Code (IaC) technologies: AWS SAM, Serverless Framework, Terraform
• Other cloud based platforms such as Google, Azure, etc.

Perks & Benefits of Joining Our Team at PSL Mexico
⚕️ Private Health Insurance
🌍 International Exposure
🤸 Agile Organization
💸 13th-Month Salary (Aguinaldo)
💰 Savings Fund
🍽️ Food Vouchers
💻 Flexible Home Office – Come to the Office at Your Best Convenience
🏖️ 12 Vacation Days After Your 3-Month Anniversary
📚 Tuition Reimbursment