--- title: 'Senior Application Developer at P\S\L Group' canonical: 'https://feeny.ai/job/senior-application-developer-p-s-l-group-mexico-jby1fqh67vsd' type: 'job' last_seen: '2026-10-21' --- # Senior Application Developer at P\S\L Group - **Company:** P\S\L Group - **Location:** Mexico - **Posted:** 2026-10-20 - **Last confirmed live:** 2026-10-21 - **Apply:** https://job-boards.greenhouse.io/pslgroup/jobs/6224699004 ## Job description Senior Fullstack Application Developer Our Vision P\S\L Group is a global organisation dedicated to putting information at the service of medicine. The companies and people of the P\S\L 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. Position Summary We are looking for a Senior Fullstack Application Developer to define, design and deliver scalable, sustainable and secure web applications at the core of the organization. You will own features end to end: modern React frontends, robust PHP (Symfony) and Node.js / TypeScript backends, and cloud-native infrastructure on AWS, from containerized services on Kubernetes (EKS) to serverless workloads on Lambda. A growing part of the role is building with Generative AI: integrating frontier models such as OpenAI GPT, Anthropic Claude, Google Gemini (via Vertex AI), Amazon Bedrock models and open-weight models such as DeepSeek, and using Claude Code and agentic tooling to plan, build, review and test software. Ideal candidates are proactive engineers who are comfortable making architecture decisions across the stack, modernizing legacy systems, and collaborating closely with product, QA and business teams in a fast-paced, highly communicative, innovation-driven environment. ## What You Will Do - Build modern, responsive web interfaces using React, Next.js, TypeScript, JavaScript and Vite. - Translate complex UI/UX designs into clean, accessible, responsive code. - Design and develop scalable and secure backend APIs using PHP (Symfony) and Node.js / TypeScript. - Architect, deploy and maintain containerized services on AWS EKS and serverless applications using Lambda, API Gateway, SQS/SNS, EventBridge, Step Functions and DynamoDB. - Integrate third-party services and GenAI APIs (streaming responses, RAG, agents, MCP) for intelligent application behavior. - Work with the PM to provide estimates for technical activities; analyze requirements and document architectural recommendations, systems and code-level design. - Write unit, integration and functional tests; automate regression and integration tests using AI; maintain high code coverage and code quality. - Perform code reviews for standards, quality assurance and security (static analysis, container scanning, AI-assisted PR review). - Implement website optimizations: front-end performance, CDN usage, caching strategies and efficient media handling. - Modernize legacy components (framework upgrades, migrating server-rendered views to React, moving pipelines to GitHub Actions). - Address day-to-day and longer-term technical issues and participate in R&D to evaluate new technologies, solutions and software. - Mentor junior team members and contribute your skills wherever required. ## Key Skills, Knowledge & Professional Experience - Over 5 years of experience in web development, with proven delivery of highly performant, scalable stacks – frontend and backend. - Experience planning, debugging and writing code with Claude Code (skills, plugins, sub-agents, MCP) and other agentic coding tools. - Skills to design software end to end (DB structure, components, API, integrations). - Strong understanding of distributed systems, event-driven architecture and API design (REST, OpenAPI). - Solid experience with PHP / Symfony and Node.js / TypeScript. - Strong experience with React and modern JavaScript / TypeScript. - Hands-on experience with AWS (containers and serverless). - Experience with LLMs (agents, embeddings, MCP, RAG, APIs of frontier LLMs). - Development best practices, including unit testing, code reviews and design patterns. - Experience mentoring junior team members; good communication skills. - Mindset of an engineer (attention to application performance, security, debugging skills). Technical Skills - Languages & Frameworks – Frontend: - JavaScript, TypeScript, React, Next.js, React Native, Vite, HTML5, CSS3 (SASS/SCSS) - Redux Toolkit, TanStack Query, React Router, Material UI (MUI) - Languages & Frameworks – Backend: - PHP, Symfony, API Platform, Doctrine ORM, OpenAPI - Node.js, TypeScript, Express, AWS SDK - Cloud & DevOps: - AWS: EKS, Lambda, API Gateway, Cognito, S3, CloudFront, SQS, SNS, EventBridge, Step Functions, DynamoDB, RDS, CloudWatch - Infrastructure as Code: AWS SAM / CloudFormation, Serverless Framework, AWS CDK - Containers: Docker, Kubernetes - CI/CD & quality: GitHub Actions, SonarQube, New Relic - Databases: - MySQL, PostgreSQL, DynamoDB, Redis, OpenSearch - Testing: - PHPUnit, Jest, Vitest, Testing Library, Playwright - Tooling: - Git, GitHub, NPM / Yarn, Composer, Webpack, ESLint, Prettier - AI-assisted development: Claude Code, MCP, agents, agentic coding CLI tools, AI PR review - GenAI Ecosystem: - OpenAI GPT, Anthropic Claude, Google Gemini (Vertex AI), Amazon Bedrock, open-weight models (DeepSeek, Llama) - Embeddings, RAG, vector stores, prompt engineering, tool use / function calling, streaming ## Nice to Have - Experience with Python (scripting, data processing, ML/AI services). - Experience deploying on Vercel or similar hosting platforms. - Knowledge of Terraform and multi-account AWS setups. - Familiarity with monorepos and modular architectures. - Exposure to Figma or other design tools. - Data engineering and analytics experience (Snowflake, SQL Server, ETL). - Feature flags and observability (LaunchDarkly, New Relic, Microsoft Clarity, Matomo). - Domain knowledge in healthcare, life sciences or medical education. - Other cloud platforms such as Google Cloud or Azure. Perks & Benefits of Joining Our Team at P\S\L 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 ## About P\S\L Group ## Company Overview - **One-liner**: P\S\L Group is a privately-held global organization that provides medical education, scientific communication, and information services to improve medical care. - **Entity Type**: Private (self-financed, debt-free) - **Headquarters**: New York, United States - **Founded**: Not publicly available - **Founders**: Not publicly available ## Core Business - **Primary industry**: Healthcare information, medical education, and scientific communication. - **Target customers**: Pharmaceutical companies, clinicians, and medical educators (B2B). - **Mission**: “Putting information at the service of medicine” to “helping people enjoy longer, better lives.” [pslgroup.com](https://www.pslgroup.com/) ## Products & Services - **PeerVoice**: Multi-country medical education service connecting clinicians with expert faculty. [linkedin.com](https://www.linkedin.com/company/psl-group) - **AiCME (Answers in CME)**: Educational development for continuing medical education. [linkedin.com](https://www.linkedin.com/company/psl-group) - **Instar Research**: Market research services tailored to the healthcare industry. [linkedin.com](https://www.linkedin.com/company/psl-group) - **PeerEducation**: Operational support for live and virtual medical education events. [greenhouse.io](http://job-boards.greenhouse.io/pslgroup) - **Data & Technology Services**: Custom data platforms, audience analytics, and digital engagement tools for life sciences. [linkedin.com](https://www.linkedin.com/company/psl-group) ## Market Standing - **Valuation/Market Cap**: Not publicly available (the company is self-financed and debt-free). [pslgroup.com](https://www.pslgroup.com/) - **Key Metric**: 481 employees as of 2026, with 8.4% year-over-year headcount growth. [linkedin.com](https://www.linkedin.com/company/psl-group) - **Notable Investors/Partners**: Not publicly available; the company emphasizes independence from external investors. [pslgroup.com](https://www.pslgroup.com/) - **Growth Signals**: Operations across 21 countries, 7 offices on 5 continents, and active job postings in finance, sales, medical direction, and educational development. [linkedin.com](https://www.linkedin.com/company/psl-group) [greenhouse.io](http://job-boards.greenhouse.io/pslgroup) ## Competitive Advantages - **Financial independence**: Self-financed and debt-free, enabling a long-term focus on client needs without quarterly earnings pressure. [pslgroup.com](https://www.pslgroup.com/) - **Nimble structure**: Operates as a network of smaller, specialized businesses, allowing quick adaptation to market changes. [pslgroup.com](https://www.pslgroup.com/) - **Deep healthcare niche**: Decades of expertise in medical communications, clinician engagement, and scientific publishing. [linkedin.com](https://www.linkedin.com/company/psl-group) ## Strategic Focus - Expanding the network of “people‑centred businesses” while maintaining independence. [pslgroup.com](https://www.pslgroup.com/) - Leveraging data engineering and AI (e.g., former director of Gen‑AI Healthcare Products) to innovate medical education and audience insights. [linkedin.com](https://www.linkedin.com/company/psl-group) - Reinvesting in new technologies and talent to improve service delivery. [pslgroup.com](https://www.pslgroup.com/) ## Why Work Here - **Culture**: Described as an “Achiever’s Paradise” with hands‑on management, personal responsibility, and a focus on continuous improvement. [pslgroup.com](https://www.pslgroup.com/) - **Global reach**: Offices in the US, UK, Canada, Mexico, France, Luxembourg, South Africa, and Malaysia offer a truly international work environment. [pslgroup.com](https://www.pslgroup.com/) - **Employee reviews**: Mixed feedback – some praise the global experience and productive atmosphere, while others cite micro‑management and unstructured processes. [indeed.com](https://ca.indeed.com/cmp/P-S-L-Group-1/reviews?fcountry=ALL) - **Tech stack**: Modern tools (Node.js, Docker, AWS, Snowflake, Python, etc.) appeal to engineers and data professionals. [linkedin.com](https://www.linkedin.com/company/psl-group) - **Remote/Hybrid**: Not explicitly stated; roles appear location‑specific (e.g., Montreal, New York, Mexico), suggesting office‑based or hybrid arrangements. ## Sources 1. [pslgroup.com](https://www.pslgroup.com/) 2. [linkedin.com/company/psl-group](https://www.linkedin.com/company/psl-group) 3. [greenhouse.io/jobs/pslgroup](http://job-boards.greenhouse.io/pslgroup) 4. [indeed.com/cmp/P-S-L-Group-1/reviews](https://ca.indeed.com/cmp/P-S-L-Group-1/reviews?fcountry=ALL) 5. [theorg.com/org/psl-group](https://theorg.com/org/psl-group) ## Other roles at P\S\L Group - [Senior DevOps Engineer](https://feeny.ai/job/senior-devops-engineer-p-s-l-group-malaysia-35160j2c19ft) — Malaysia - [Senior Application Developer](https://feeny.ai/job/senior-application-developer-p-s-l-group-mexico-vm35y09trv13) — Mexico - [FirstWord Sales Consultant](https://feeny.ai/job/firstword-sales-consultant-p-s-l-group-united-states-j6b579jaht3c) — United States - [Senior Application Developer](https://feeny.ai/job/senior-application-developer-new-york-city-economic-development-corporation-new-7mp2emhga9s2) — New York, NY - [Senior Application Developer](https://feeny.ai/job/senior-application-developer-level-austin-xyqatr97jn35) — Austin, TX