Principal Full Stack Engineer (React, TypeScript, AWS, AI-Assisted Development)

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Principal Full Stack Engineer (React, TypeScript, AWS, AI-Assisted Development) About Us Founded in 2011, Modus is a global, fully remote team of world-class technologists who thrive in a collaborative, innovative environment. We’re a digital product engineering partner for forward-thinking businesses. Our global teams work side-by-side with clients to design, build, and scale custom solutions that achieve real results and lasting change, partnering with industry leaders including AWS, GitHub, and Atlassian. We were fully remote before it was cool! Recognized as one of the Inc. 5000 Fastest Growing Private Companies for nine years and a top remote work company by FlexJobs, we have helped some of the world’s largest brands deliver powerful digital experiences. As an award-winning Atlassian partner with a world-class team, we help organizations innovate and solve complex challenges for Fortune 500 companies and beyond, we want to hear from you. Opportunity! We are looking for a Principal Full Stack Engineer who combines deep hands-on engineering expertise with strong technical leadership and consulting skills. You’ll work directly with clients and engineering teams to architect and deliver modern digital products, guide technical decisions, and turn complex or ambiguous business challenges into scalable solutions. This is a highly collaborative and client-facing role for an experienced technologist who is equally comfortable writing code, leading technical delivery, discussing architecture with senior stakeholders, and helping teams make better engineering decisions. We’re particularly interested in engineers with deep React and TypeScript expertise, strong experience building on AWS, and a modern approach to software development that incorporates AI-assisted and agentic coding tools into everyday engineering workflows. Requirements: • Extensive professional software engineering experience building and delivering complex, production-grade applications. • Deep expertise in React and TypeScript, with strong experience designing and developing modern frontend and full-stack applications. • Strong understanding of software and solution architecture, including the ability to make pragmatic architectural decisions around scalability, performance, maintainability, and reliability. • Significant experience with AWS and cloud-native application architectures, including serverless, containerized, and/or distributed systems. • Proven experience serving as a Tech Lead, Principal Engineer, or senior technical owner for complex engineering initiatives. • Ability to lead projects from technical discovery and architecture through implementation, deployment, and production. • Strong experience designing and integrating APIs, backend services, and distributed systems. • Hands-on experience using modern AI-assisted development tools such as Claude Code, GitHub Copilot, Cursor, or similar technologies as part of software delivery. • Understanding of agentic coding and AI-enabled software development workflows, including how these approaches can improve engineering productivity without compromising quality or maintainability. • Strong consulting skills with the ability to understand client challenges, identify technical opportunities, and translate business requirements into effective engineering solutions. • Excellent communication and executive presence, with the ability to explain complex technical concepts, trade-offs, and recommendations to both technical and non-technical stakeholders. • Experience collaborating across engineering, product, design, and client teams in distributed environments. • Ability to mentor engineers, establish technical direction, and raise engineering standards while remaining actively involved in hands-on delivery. Bonus points: • Experience designing or delivering AI-powered or Generative AI applications. • Hands-on experience with agentic architectures, AI agents, orchestration, or LLM-integrated development workflows. • Experience with additional modern full-stack technologies such as Node.js, Next.js, React Native, or similar frameworks. • Experience with AWS serverless architecture, including services such as Lambda, API Gateway, DynamoDB, Cognito, or related technologies. • AWS certifications or demonstrated experience designing complex AWS architectures. • Experience leading cloud modernization, application modernization, or legacy transformation initiatives. • Experience conducting technical assessments, architecture reviews, discovery engagements, or consulting workshops with clients. • Experience helping teams adopt new engineering practices, tooling, or AI-enabled development approaches. You’ll Love: • Solving complex engineering challenges while remaining deeply involved in hands-on technical work. • Working directly with clients and senior stakeholders to shape technical strategy and turn ideas into production-ready solutions. • Leading engineering initiatives without stepping away from coding and architecture. • Building modern applications with React, TypeScript, AWS, and emerging AI technologies. • Exploring how AI-assisted and agentic development can fundamentally improve how software teams design, build, test, and deliver products. • Mentoring other engineers and helping raise the technical bar across teams. • Working across different clients, industries, technologies, and complex business challenges. By joining our team, you’ll be part of a winning squad that plays to each other’s strengths and celebrates every success together.