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From the employer's careers site First seen 27 Oct 2026

Senior Software Engineer II - Ads Quality

Instacart United States - Remote Remote senior full-time

Salary

$192,000-$242,500 per year

Apply on Instacart

Description

At Instacart, we're transforming the grocery industry by delivering an essential service that customers rely on to get their groceries and household goods. As a Senior Software Engineer II in the Ads Quality team specializing in ML infrastructure, you'll work with a team of software and machine learning engineers to build state-of-the-art systems that optimize Ads performance throughout the ads serving funnel.

You'll own the technical direction of our data, feature processing and model training/serving solutions, enabling next-generation modelling opportunities. You'll eliminate bottlenecks across the training and serving system to optimize stability, latency and cost.

Responsibilities:

  • Design, develop, and deploy machine learning infrastructure to tackle practical challenges in our complex marketplace while advancing the training and serving platform.
  • Work with the company-wide ML Foundation team to develop solutions to meet Ads unique needs.
  • Optimize training and serving funnel bottlenecks,profiling real systems and driving meaningful wins in throughput, cost, and latency.
  • Identify instabilities and shortcomings of our systems and operating procedures to deliver best-in-class availability.
  • Build real-time feature processing infrastructure,low-latency pipelines that compute, join, and serve fresh features to models on the critical path of every ad request.
  • Lead the infrastructure foundation for our real-time sequential foundation model, including online sequence feature stores, streaming update paths, efficient long-context serving, and training pipelines that keep pace with rapidly evolving data.
  • Collaborate closely with product managers, data scientists, and MLEs to deeply understand business needs and co-design systems where product, model architecture and infrastructure constraints are solved together.
  • Actively engage with diverse stakeholders to ensure that solutions are well-integrated and aligned with business goals.
  • Mentor engineers, set technical direction, and conduct thorough code reviews to ensure high code quality and maintainability.

Requirements:

  • Graduate degree (masters or PhD) in computer science, artificial intelligence, machine learning, operations research or equivalent self-study and experience.
  • 3+ years of industry experience building ML infrastructure or using machine learning to solve real-world problems with large datasets.
  • Deep expertise building, scaling and managing ML infrastructure for training and/or serving in production, with a strong understanding of modern machine learning systems and MLOps.
  • Strong programming skills in software engineering (e.g., Python, Go), along with expertise in data manipulation using tools (SQL, Spark, and Pandas), and ML frameworks (Torch, Tensorflow, XGBoost).
  • Strong analytical and problem-solving skills.
  • Excellent communication skills (both verbal and written) and can collaborate with a diverse group of stakeholders across all levels.

Benefits:

  • Highly market-competitive compensation
  • New hire equity grant
  • Annual refresh grants
  • Flexible remote work policy

Skills

Required

Nice to have

  • sequential modeling
  • transformer architecture
  • generative retrieval
  • large scale online recommendation systems
  • digital advertising platforms
  • LLM integrations

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/instacart/jobs/8234282

Apply on Instacart