Job Summary

As a Tech Lead Senior Full Stack Engineer, you will design, build, and enhance cloud-native applications that support the R&D; organization. Operating at the intersection of science and technology, you will partner with product owners, data experts, and global engineering teams to deliver scalable, high-quality solutions that enable data-driven decision-making.

This role combines full-stack development, cloud engineering, and system design, with increasing ownership of architecture, engineering best practices, and technical leadership.

Responsibilities

Engineering &

- Development

- Design, develop, test, and maintain scalable cloud-native applications across front-end and back-end systems
- Build and enhance modern microservice-based architectures and distributed systems
- Develop and integrate RESTful APIs and system interfaces for enterprise platforms
- Implement infrastructure-as-code solutions and manage cloud environments
- Build and maintain CI/CD pipelines for automated deployment and delivery

Architecture &

- Design

- Contribute to system architecture, technical design, and engineering standards
- Create detailed technical documentation including:
- Low-Level Design (LLD)
- Entity-Relationship (ER) diagrams
- Component and class diagrams
- Partner with stakeholders to translate business requirements into scalable technical solutions

Quality &

- Reliability

- Implement automated testing frameworks (unit, integration, end-to-end)
- Monitor, troubleshoot, and resolve production issues related to performance and reliability
- Ensure applications meet security, compliance, and operational standards

Collaboration &

- Delivery

- Work closely with product managers, data SMEs,



and cross-functional teams
- Participate in Agile development processes including sprint planning, code reviews, and retrospectives
- Collaborate across integral teams and vendors to deliver complex solutions

Data &

- Platform Integration

- Integrate applications with enterprise R&D; systems and scientific data platforms
- Build data pipelines and support data ingestion, transformation, and access
- Enable interoperability using semantic data models and metadata standards

Continuous Improvement &

- Innovation

- Drive improvements in development processes, tools, and architecture
- Reduce technical debt and improve system scalability and maintainability
- Leverage AI-assisted development tools to improve productivity
- Contribute to cloud-first strategy and digital innovation across R&D;

Leadership &

- Ownership

- Take end-to-end ownership of features—from design through deployment
- Act as a technical contributor and mentor supporting junior engineers
- Influence stakeholders and help resolve complex technical challenges

Required Qualifications

- Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience) and 5+ years of software engineering experience. Or Master’s degree with 3+ years of experience

Technical Skills

- Strong experience with Python




- Strong experience with JavaScript
- Experience building full-stack applications (front-end + back-end)
- Experience with the React JavaScript framework
- Hands-on experience with AWS cloud services (EC2, RDS, S3, etc.)
- Experience with infrastructure-as-code (e.g., Terraform)
- Strong understanding of microservices architecture and cloud-native design
- Experience designing and integrating REST APIs

Data &

- Systems

- Experience with relational databases (e.g., Oracle, PostgreSQL, MySQL)
- Experience with NoSQL databases (e.g., DynamoDB, Neptune)
- Knowledge of data engineering pipelines (e.g., Spark, Databricks)
- Strong understanding of system design and data modeling

Engineering Practices

- Experience with DevOps tools and CI/CD pipelines
- Strong understanding of automated testing methodologies
- Experience working in Agile/Scrum environments

Professional Skills

- Strong problem-solving, analytical, and communication skills
- Ability to work independently and collaborate across teams
- Business acumen and ability to translate technical solutions to business impact

Preferred Qualifications

- Experience with another modern programming language (e.g. Java)
- Experience with other JavaScript frameworks (e.g. Angular, Vue)
- Experience with containerization and orchestration (e.g., Kubernetes/EKS)
- Experience with AI-assisted development tools
- Exposure to clinical, scientific or biomedical platforms
- Knowledge of GxP processes and regulated environments
- Experience working with research scientists or domain experts
- Experience with OutSystems, Power Apps, SalesForce or similar low-code platforms is a plus

📌 Tech Lead Full Stack Engineer (Ciudad de México)
🏢 Cognizant
📍 Ciudad de México