Backend Engineer - Commerce (San Francisco)

Together AI is seeking a Senior Backend Engineer to shape, build, and scale the commerce platform that drives our Togethers Cloud products. As a member of the Commerce Engineering team, you will develop and work on mission-critical commerce capabilities including usage-based billing, payment processing, customer-facing analytics, and product entitlements.

This role is for someone who thrives on solving complex challenges in distributed systems, and has expertise in backend API services, relational databases, and event-driven architectures for a rapidly scaling and commerce-intensive company. You will work across cloud-native services and globally distributed data centers to deliver high-performance, reliable solutions.

Required Qualifications

• 5+ years of demonstrated experience in building large scale, fault tolerant, distributed systems and API microservices
• Experience designing, analyzing and improving efficiency, scalability, and stability of various system resources
• Excellent understanding of low level operating systems concepts including multi-threading, memory management, networking and storage, performance and scale
• Expert-level programmer in one or more of Golang, Rust, Python, Java, or TypeScript
• Proficiency in writing and maintaining Infrastructure as Code (IaC) using tools like Terraform, AWS CDK, or Pulumi
• Proficiency in version control practices and integrating IaC with CI/CD pipelines.
• Experience with payment processors (e.g. Stripe) and billing systems a plus
• Experience with Kubernetes, or containers a plus
• Experience building and operating data infrastructure (Kinesis, Airflow, Kafka, etc) a plus
• Bachelors or Masters degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience

Key Responsibilities

• Identify, design, and develop foundational backend services that power Togethers commerce platform
• Analyze and improve the robustness and scalability of existing distributed systems, APIs, databases, and infrastructure
• Partner with product teams to understand functional requirements and deliver solutions that meet business needs
• Write clear, well-tested, and maintainable software and IaC for both new and existing systems
• Conduct design and code reviews, create developer documentation, and develop testing strategies for robustness and fault tolerance
• Participate in an on-call rotation to address critical incidents when necessary

About Together AI

Together AI is a research-driven artificial intelligence company. We believe open and transparent AI systems will drive innovation and create the best outcomes for society, and together we are on a mission to significantly lower the cost of modern AI systems by co-designing software, hardware, algorithms, and models. We have contributed to leading open-source research, models, and datasets to advance the frontier of AI, and our team has been behind technological advancement such as FlashAttention, Hyena, FlexGen, and RedPajama. We invite you to join a passionate group of researchers and engineers in our journey in building the next generation AI infrastructure.

Compensation

We offer competitive compensation, startup equity, health insurance and other competitive benefits. The US base salary range for this full-time position is: $160,000 - $230,000 + equity + benefits. Our salary ranges are determined by location, level and role. Individual compensation will be determined by experience, skills, and job-related knowledge.

Equal Opportunity

Together AI is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.

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