Full-Stack Software Engineer, Front-End

Union.ai

full-time

Posted on: 9/3/2025

Location: Washington • 🇺🇸 United States

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Mid-LevelSenior

AWSCloudGoJavaJavaScriptNode.jsPythonPyTorchReactSparkTensorflowTypeScriptWebpack

About the role

At Union, solving hard AI infrastructure challenges enabling high-velocity iteration while maintaining production-readiness for AI workloads at scale.
Work on Flyte, open-source project for data and AI orchestration used by LinkedIn, Spotify, Gojek.
Reporting into Engineering as a Full-Stack Software Engineer with strong front-end focus; work across front-end, backend, infrastructure.
Create high-quality, scalable, maintainable code and APIs leveraging backend and frontend technologies.
Influence development of user-centric features for data scientists and engineers.
Contribute to architectural decisions and participate in code and design reviews across teams.
Demonstrate excellent communication skills and bias towards impact; pick up work that needs to get done.
Work independently on large, ambiguous problems.
Use React to build modern, interactive web applications with attention to usability and accessibility.
Use TypeScript or JavaScript for client-side logic at scale and NodeJS for server-side development and API integration.
Expectation to be in-office.

4+ years of professional experience building software as a generalist with a strong focus on frontend development alongside backend and infrastructure work
Prior experience with React and its core principles including component architecture, state management, and hooks.
Experience with TypeScript or Javascript with attention to code quality, readability, and maintainability.
Experience with Python, Go, Java or another backend technologies and comfortable working across the full stack.
Knowledge of ML concepts and frameworks (eg. TensorFlow, Pytorch, Spark) is highly desired.
Experience with AWS and/or NodeJS
Familiarity with frontend build tools like Webpack and Vite, and understand how to optimize for performance bundle size and developer experience.
Strong foundation in data structures, and algorithms with a focus on performance tuning and optimization in both frontend and backend systems.
A clear communicator who thrives in ambiguous environments, often stepping up to drive clarity, alignment and solutions when faced with open-ended challenges.
Bachelor’s degree in computer science or related field.