--- title: 'Senior Python Backend Engineer at 3Pillar' canonical: 'https://feeny.ai/job/senior-python-backend-engineer-3pillar-canada-31s378jzwt4f' type: 'job' last_seen: '2026-09-08' --- # Senior Python Backend Engineer at 3Pillar - **Company:** 3Pillar - **Location:** Canada - **Employment:** contract - **Work type:** remote - **Posted:** 2026-07-02 - **Last confirmed live:** 2026-09-08 - **Apply:** https://jobs.lever.co/3pillarglobal/63c0a2f2-7cea-48eb-b213-3a46e20fde58 ## Job description 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! ## About 3Pillar ## Company Overview - **One-liner**: 3Pillar is a leading AI transformation partner that helps enterprises build AI-native products, modernize core systems, and orchestrate intelligent workflows through a combination of proprietary platforms and engineering services. - **Entity Type**: Private (funded; $25.9M total funding across 5 rounds) - **Headquarters**: Fairfax, Virginia, United States - **Founded**: 2006 - **Founders**: Not publicly disclosed ## Core Business - **Primary industries**: Software engineering, AI/ML, digital product development, data engineering, cloud infrastructure - **Target customers**: B2B, Enterprise (mid-market to large global brands) - **Mission/purpose**: “We harness the extraordinary power that’s sparked when people from all walks of life, all around the world, collaborate together. Our high-performing teams work with you to create innovative solutions that solve strategic business challenges and deliver outsized impact.” ## Products & Services - **[HelixAI](https://www.3pillar.ai/)**: An open, composable, AI-native development and runtime platform for building agentic AI workflows. Includes an ontology-driven knowledge graph (ATLAS) and governance tools. - **[AIRE](https://www.3pillar.ai/)**: An agentic AI harness with built-in governance, SDLC agents, and token-optimized execution with human oversight. - **[NEXUS](https://www.3pillar.ai/services/)**: Rapid AI-native application and agent development platform for streamlining operations and enabling reasoning-driven decisions. - **AI-Led Product & Platform Modernization**: Services to evolve legacy systems deliberately, balancing stability and speed (powered by ATLAS). - **Digital Products & Experiences**: AI-powered product design and development, bringing ideas to market faster. - **AI-Ready Data**: Data foundation services to transform fragmented data into governed, high-quality assets. - **AI-Powered Operations**: Reimagining enterprise operations using AI agents and automation. ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metric**: Annual Revenue of $53.7M (as per LinkedIn); Total Funding of $25.9M (5 rounds) - **Notable Investors/Partners**: Not explicitly named in available sources; operates in 5+ countries (Romania, Guatemala, Costa Rica, Mexico, India, United States) - **Growth Signals**: 1,245 employees (though -4.6% YoY); global presence across 19 countries; strong emphasis on agentic AI and AI transformation as core growth drivers ## Competitive Advantages - **Proprietary AI platforms**: HelixAI, AIRE, ATLAS, and NEXUS provide a differentiated, composable approach to enterprise AI adoption. - **Product Mindset®**: A unique methodology that blends product engineering with cognitive computing, enabling faster, more resilient digital transformation. - **Global distributed team**: Ability to leverage talent across time zones and cultures while maintaining English as the working language. - **Deep expertise across the full stack**: From data engineering and cloud to UX and AI governance, all under one roof. ## Strategic Focus - **Agentic enterprise**: Scaling AI through agentic workflows and intelligent automation. - **Open, composable architecture**: Building platforms that integrate with clients’ existing tools and systems. - **AI governance and quality**: Emphasizing governed, trustworthy AI with human oversight at every step. - **Continued global expansion**: Leveraging a distributed workforce model to serve clients worldwide. ## Why Work Here - **Flexible work environment**: “We work from anywhere” – headquarters in Washington, DC metro area, with offices in North America, Europe, Asia, and Latin America. Team members can choose office, home, or a blend. - **Well-being focus**: A full trimester in the annual cycle dedicated to well-being, including fitness offerings, mental health plans (country-dependent), and generous time off. - **Global collaboration**: Work with top talent from around the world, daily English communication, and potential travel to colleagues in different regions. - **Career growth**: Practice-aligned teams (Automation, Data Science & Analytics, Engineering & Architecture, Lifecycle Management, UX) allow targeted skill development across projects and industries. - **Professional services model**: Accelerated career growth through exposure to diverse clients and technologies. - **Open positions** include Senior Data Engineer, Technical Lead, AI ML Architect, DevOps Engineer, Senior Software Engineer, and more. ## Sources 1. [3pillar.ai](https://www.3pillar.ai/) 2. [3pillar.ai/careers/](https://www.3pillar.ai/careers/) 3. [3pillar.ai/services/](https://www.3pillar.ai/services/) 4. [linkedin.com/company/3pillar](https://linkedin.com/company/3pillar) 5. 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