Brij

Senior Full Stack Engineer - AI & Data

Tech - Austin, TX - Full Time

Senior Full-Stack Engineer - AI & Data

Location: Remote or Hybrid (Austin Preferred)

About Us

Brij is a venture-backed, high growth software startup based in NYC. Our AI-powered platform helps omnichannel consumer brands gain valuable data to “bridge” online and offline audiences to drive revenue across channels. Our suite of tools including warranty registration, sweepstakes & rebates empower brands to connect with their consumers wherever they shop. We work with some of the best brands in the world including Heineken, Feastables, Momofuku, Health-Ade, Skullcandy, and Gozney.

We’re a lean, diverse team with a bias toward action and extreme ownership. Our customer-first mindset drives everything we do, and we’re excited to build the future of omnichannel commerce.

About the Role

We’re looking for a Senior Full-Stack Engineer – AI and Data with an extreme ownership mentality and a proven track record of building scalable, production-grade applications from the ground up. This is a high-impact role at the intersection of product, AI, and data infrastructure. You’ll be a key contributor in shaping our technical foundation, AI integrations, and scalable systems architecture.

If you've founded a startup or have built and scaled web applications from the ground-up this role is built for you.

What You’ll Do

Architect, build, and maintain full-stack web applications using React, Next.js, Node.js, MongoDB, and modern cloud-native tools.
Build pixel-perfect, high-performance front-ends with deep attention to detail and strong design intuition.
Design and implement scalable data pipelines and infrastructure for real-time and batch processing.
Create applications with deep integration of analytics, reporting, and data-driven decision-making tools.
Integrate and operationalize AI APIs such as OpenAI, Anthropic, or other LLM providers into customer-facing features.
Own the full development lifecycle — from architecture and database design to deployment, observability, and scaling.
Collaborate closely with cross-functional teams to rapidly iterate on AI-powered product features.
Mentor junior engineers and contribute to a high-ownership, high-performance culture.

What We’re Looking For

8+ years of full-stack engineering experience, with a proven ability to build and launch full web applications from scratch.
Mastery of React, Next.js, Node.js, and MongoDB.
Proven experience integrating and scaling AI APIs in production environments, including building complex, production-level microservices with an orchestration layer.
Experience creating, integrating and scaling AI APIs in production environments.
Strong expertise in designing and maintaining data pipelines (ETL/ELT, streaming, or batch).
Deep mastery of AWS services, including but not limited to:
- Lambda, EC2, S3, RDS, API Gateway, SQS, SNS, CloudWatch, IAM, VPC, and ECS with Containerization

DevOps experience including but not limited to:
- Docker, Swarm, Github Actions, Creating Custom CI/CD pipelines. Knowledge of Kubernetes is a plus.

Demonstrated ability to scale applications to millions of users.
Strong understanding of system architecture, security, caching strategies, and performance optimization.
Demonstrated ability to scale applications to millions of users.
Bonus: You’ve founded a startup or been the first/early technical hire at an early-stage startup.

You’ll Thrive Here If You

Take extreme ownership of your work and thrive in high-autonomy environments.
Obsess over quality, performance, and clean design in both UI and system architecture.
Are passionate about AI, analytics, and data-first product development.
Want to work with a small, global, elite team shipping high-impact features at startup speed.