Senior Platform Architect & Lead Engineer

Motion Recruitment; Boston (MA); On-site; USD 150,000 - 210,000; Full time

Job summary

Motion Recruitment is seeking a hands-on Tech Lead for Platform Engineering to own the architecture of a secure, scalable, multi-tenant application platform powering scientific data and AI workloads. You will work across AWS, Docker, ECS, TypeScript, Node.js, React, Python, IAM, and infrastructure-as-code, shaping lifecycle, security, and developer experience.

This senior role demands architectural authority over a live production platform with real customers.

Qualifications

• 10+ years of software engineering with strong hands-on leadership.
• Experience operating production multi-tenant platforms for external teams.
• Proven Docker/containerization, AWS ECS, and security practices.
• Expert TypeScript/Node.js backend and React frontend skills.
• IaC and observability practices to enable reliability.

Responsibilities

• Own the technical architecture and evolution of the platform.
• Design and optimize multi-tenant app hosting and lifecycle management.
• Implement secure identity, access, and tenant isolation models.
• Lead architecture reviews, RFCs, and migration plans.
• Mentor engineers and drive delivery with Product Manager.

Skills

10 years software engineering

Technical lead / architect

Multi-tenant platform design

Docker & container pipelines

AWS ECS / IAM / S3 / Lambda

Security engineering

REST / OpenAPI API design

TypeScript & Node.js backend

React frontend architecture

Python tooling

Infrastructure as code (CloudFormation

Observability (OpenTelemetry)

RFCs & architecture docs

Sprint & quarterly planning

Tools

Docker

CloudFormation

OpenTelemetry

Terraform

CI/CD tooling

KMS / security tooling

Job description

Motion Recruitment is seeking a hands-on Tech Lead for Platform Engineering to own the architecture of a secure, scalable, multi-tenant application platform powering scientific data and AI workloads. You will work across AWS, Docker, ECS, TypeScript, Node.js, React, Python, IAM, and infrastructure-as-code, shaping lifecycle, security, and developer experience.

This senior role demands architectural authority over a live production platform with real customers.