Senior Fullstack Application DeveloperOur VisionPSL Group is a integral 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.PurposeOur 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.Position SummaryWe are looking for aSenior Fullstack Application Developerto lead the design and development of complex web applications that leverage the power ofGenerative AI.
You will be responsible for crafting both the user-facing frontend and the robust backend logic, integrating LLM services such asOpenAI'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 DoBuild modern, responsive web interfaces usingReact (v*****),TypeScript, andYarn.Translate complex UI/UX designs into clean,



responsive codeWrite unit and functional tests; maintain high code coverage and code quality.Design and develop scalable and secure backend APIs usingNodeJSandPython.Architect, deploy and maintainserverless applications on AWSusingLambda,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 SkillsLanguages & 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 SAMCI/CD tools (CodePipeline, CodeBuild, GitHub Actions, etc.)Databases:PostgreSQL, MySQL, DynamoDB, RDSTooling:Git, GitHub, Yarn, Vite, Webpack, Babel, NVM/NPMAI assisted development, skills, MCP, agents, agentic coding cli tools.GenAI Ecosystem (preferred):OpenAI GPT-4o, Google Vertex AI, AWS Bedrock modelsAdditionalExperience withNext.js,React Native,Vercel, RTK, TanstackExposure toFigma,Sketch, or other design toolsFamiliarity withmonorepos,Lerna, and modular architecturesKnowledge on Infrastructure as Code (IaC) technologies:AWS SAM, Serverless Framework, TerraformOther cloud based platforms such as Google, Azure, etc.Perks & Benefits of Joining Our Team at PSL Mexico⚕️ Private Health InsuranceInternational ExposureAgile Organization13th-Month Salary (Aguinaldo)Savings Fund️ Food VouchersFlexible Home Office – Come to the Office at Your Best Convenience️ 12 Vacation Days After Your 3-Month AnniversaryTuition Reimbursment

📌 Senior Application Developer (México)
🏢 PSL Group
📍 México