Senior Platform Engineer

What if you could join an organization that creates, resources, and builds life sciences companies that invent breakthrough technologies in order to transform health care and sustainability?

Montai Therapeutics is a privately held, early-stage biotechnology company developing a platform for understanding and leveraging complex molecular interactions within organisms to solve global challenges in human health and sustainability. The company leverages a multidisciplinary approach that integrates tools ranging from machine learning and big data to multi-omics and high-throughput screening.

At Montai, we nurture a bold, spirited, and leading-edge culture dedicated to strengthening human health:

• We are one team with omnidirectional trust, empowered and accountable
• We are strong as individuals but stronger as a team and we are committed to excellence
• We have a sense of urgency and persistence, and we are crazily confident that we can make a difference
• We need to be comfortable with the uncomfortable and be rigorous and we recognize that failure is data
• We care for diversity in people, thought, personality, opinions, background and distinctiveness
• We have a sense of humor to help us manage through our strategic noise

About the Role

We are looking for a Senior Platform Engineer to strengthen and scale the AWS-based infrastructure that powers our products and teams. This role is about designing the backbone that accelerates our innovation and growth. You will take on complex engineering challenges, drive automation to make deployments faster and more reliable, and build resilient systems that empower our teams to deliver at scale.

Why join us? Here you will be at the center of real innovation, working with the latest cloud technologies, pushing the boundaries of automation, and creating state-of-the-art tools that enable our users and teams to do their best work. If you are passionate about building platforms that make a measurable difference and want to help shape the future of how we deliver technology, this role is for you.

What You Will Do

• Design, build, and maintain AWS infrastructure (ECS, EC2, RDS, S3, IAM, VPC) or similar services from other cloud providers (GPC, Azure)
• Develop backend services and integration tooling to support critical systems
• Implement and improve CI/CD pipelines (GitHub Actions, CodePipeline)
• Drive automation to ensure deployments are fast, reliable, and repeatable
• Ensure platform reliability with monitoring, logging, and alerting (CloudWatch, Sentry)
• Collaborate with team members across engineering to integrate and scale services
• Lead troubleshooting and root cause analysis of infrastructure issues

What We Are Looking For

• 6+ years of experience in Platform, DevOps, or Backend Infrastructure Engineering
• Strong hands-on expertise with AWS services (ECS preferred)
• Advanced Python programming skills
• Proficiency with infrastructure-as-code (AWS CDK and CloudFormation, Terraform)
• Experience with CI/CD automation and production systems
• Strong grasp of reliability, scalability, and security best practices
• Experience with containers and orchestration (Docker, ECS)
• Exposure to data/ML infrastructure and supporting advanced workloads

More About Flagship Pioneering

Flagship Pioneering is a bioplatform innovation company that invents and builds platform companies, each with the potential for multiple products that transform human health or sustainability. Since its launch in 2000, Flagship has originated and fostered more than 100 scientific ventures, resulting in more than $90 billion in aggregate value. Many of the companies Flagship has founded have addressed humanitys most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture. Flagship has been recognized twice on FORTUNEs Change the World list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies, and has been twice named to Fast Companys annual list of the Worlds Most Innovative Companies. Learn more about Flagship at www.flagshippioneering.com.

At Flagship, we recognize there is no perfect candidate. If you have some of the experience listed above but not all, please apply anyway. Experience comes in many forms, skills are transferable, and passion goes a long way. We are dedicated to building diverse and inclusive teams and look forward to learning more about your unique background.

Recruitment & Staffing Agencies:Flagship Pioneering and its affiliated Flagship Lab companies (collectively, FSP) do not accept unsolicited resumes from any source other than candidates. The submission of unsolicited resumes by recruitment or staffing agencies to FSP or its employees is strictly prohibited unless contacted directly by Flagship Pioneerings internal Talent Acquisition team. Any resume submitted by an agency in the absence of a signed agreement will automatically become the property of FSP, and FSP will not owe any referral or other fees with respect thereto.

The salary range for this role is $108,000 - $176,000. Compensation for the role will depend on a number of factors, including a candidates qualifications, skills, competencies, and experience. Montai Therapeutics currently offers healthcare coverage, annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Montai Therapeuticss good faith estimate as of the date of publication and may be modified in the future.