Senior Python Backend Developer

3Pillar is an AI transformation partner on a mission to help enterprises build the AI-native products and intelligent agents that will define the next era of business. With teams across North America, Europe, Latin America, and Asia, we work with the most ambitious companies in financial services, healthcare, media, and technology — helping them move faster, modernize boldly, and compete on their own terms. Our HelixAI platform and Helix Pods delivery model put our engineers at the center of real agentic transformation — doing work that is open, portable, and built to last. We are building the future of enterprise AI. 
🌟 Accomplished Tech Visionary:
Elevate your expertise to new heights at 3Pillar, the premier destination for trailblazing senior engineers like yourself. Picture collaborating with industry leaders and spearheading transformative projects that directly impact global clinical trial outcomes. Our mission is to revolutionize healthcare technology, and your skills are integral to achieving this ambitious goal.
Your role extends beyond writing code; you will architect scalable backend services for the BX platform and guide a team of engineers in delivering cloud-native, Python-based systems built for the demands of clinical research. Join us and spearhead the charge toward a tech future that transcends the ordinary. 🔮🌐
You will be focused on leading the development of Python backend services running on AWS, managing PostgreSQL databases, architecting Kubernetes-based infrastructure, and ensuring seamless cloud-to-cloud integrations critical to the BX platform.

Key Responsibilities
Facilitate effective communication with client project stakeholders regarding project status and technical recommendations. Lead the design and development of backend services and APIs using Python and the Pyramid framework on AWS. Architect and manage PostgreSQL schemas, queries, and performance optimizations for clinical-grade data. Build and maintain AWS infrastructure including Kubernetes (EKS), Lambda, API Gateway, and cloud-to-cloud integration patterns. Define backend coding standards, API design patterns, security best practices, and testing strategies. Mentor and guide backend engineers, driving engineering excellence across the team. Engage in agile software development including stand-ups, sprint planning, retrospectives, and estimation. Independently drive project delivery within defined architecture, demonstrating autonomy from conceptualization to deployment.

Minimum Qualifications
Experience/expertise in the following areas specified below: Design and implement scalable backend services and APIs using Python Architect PostgreSQL databases with strong skills in schema design, query optimization, and data integrity Utilize AWS services: Kubernetes (EKS), Lambda, API Gateway, RDS, S3, IAM, and cloud-to-cloud integrations Mentor engineers, conduct code reviews, and enforce engineering standards across the team Deliver production systems with high reliability, observability, and security Must-Have Skills & Tools: Languages: Python, javascript, SQL, REST API OAUTH 2 Docker Database: PostgreSQL (advanced — schema design, performance tuning, stored procedures) Cloud: AWS – Kubernetes (EKS), Lambda Tools: Jira, Bitbucket/GitHub, Slack/Teams Good to Have Skills Framework: Pyramid (Python web framework) VsCode Typescript Snowflake SQL Alchemy (ORM) 6+ years of backend engineering experience, including 2+ years in a lead or tech lead role. Strong understanding of SOLID principles, OOP, and clean architecture patterns. Familiarity with OWASP security practices. English proficiency.

Additional Experience Desired
Experience with clinical or healthcare data systems (HL7, FHIR, GxP, 21 CFR Part 11). Knowledge of microservices and serverless architectural patterns. Experience with Docker, container orchestration, and modern CI/CD tooling. Proficiency with unit testing, integration testing, and TDD practices.

What is it like working for 3Pillar Global?
At 3Pillar, we offer a world of opportunity: Imagine a flexible work environment – whether it’s the office, your home, or a blend of both. From interviews to onboarding, we embody a remote-first approach. You will be part of a global team , learning from top talent around the world and across cultures, speaking English everyday. We’re big on your well-being – as a company, we spend a whole trimester in our annual cycle focused on wellbeing. Whether it is taking advantage of fitness offerings, mental health plans (country-dependent), or simply leveraging generous time off, we want all of our team members operating at their best. Our professional services model enables us to accelerate career growth and development opportunities – across projects, offerings, and industries. We are an equal opportunity employer. It goes without saying that we live by values like Intrinsic Dignity and Open Collaboration to create cutting-edge technology AND reinforce our commitment to diversity – globally and locally. Join us and be a part of a global tech community! 🌍💼 Check out our Linkedin site and Careers page to learn more about what it’s like to be part of our #oneteam!