Senior Software Engineer, Infrastructure & Platform

AfterQuery
San Francisco
Workplace: OnsiteFull timeUSD 220,000 - 280,000 annuallyFunction: Software EngineeringExperience: 6+ yearsSkills: ["Problem-solving","Collaboration","Communication"]

Senior Software Engineer, Infrastructure & Platform responsible for designing and building core infrastructure powering data generation, evaluation, and agentic systems. Owns shared platforms enabling large-scale human-in-the-loop workflows, evaluation harnesses, and data pipelines for frontier AI models. Collaborates with the founding team to define system architecture, ensure scalability, reliability, and high-throughput performance.

Loading

Loading job details...

Preparing the role view and application actions.

FursaFursa
AfterQuery
AfterQuery
4 months ago

Senior Software Engineer, Infrastructure & Platform

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 15 hours agoStatus: Live

Job Summary

Senior Software Engineer, Infrastructure & Platform responsible for designing and building core infrastructure powering data generation, evaluation, and agentic systems. Owns shared platforms enabling large-scale human-in-the-loop workflows, evaluation harnesses, and data pipelines for frontier AI models. Collaborates with the founding team to define system architecture, ensure scalability, reliability, and high-throughput performance.
Location: San Francisco
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Sr. Manager level

Key Responsibilities

  • •Architect and develop the shared infrastructure powering data generation platforms, human-in-the-loop systems, and evaluation pipelines.
  • •Build scalable distributed systems capable of processing large-scale datasets and high-throughput workloads with strong reliability guarantees.
  • •Create reusable infrastructure and APIs that enable product engineers and researchers to build quickly and reliably on top of core systems.
  • •Design systems with strong observability, monitoring, and fault tolerance to support production workloads at scale.
  • •Help define long-term system architecture across data pipelines, compute infrastructure, task orchestration, and storage systems.

Pay and Benefits

Salary: USD 220,000 - 280,000 annually
Equity and Bonus:Equity
Perks:Equity

Key Requirements

  • •Strong experience building production distributed systems or platform infrastructure.
  • •Proficiency in Python and/or JavaScript (Node.js / Next.js) or similar backend technologies.
  • •Experience designing and operating systems in cloud environments (GCP or AWS).
  • •Experience with message queues and event-driven systems (Kafka, RabbitMQ, Pub/Sub, etc.).
  • •Experience working with high-throughput data pipelines and asynchronous processing systems.
Experience:6+ yearsAIResearch
Skills:Problem-solvingCollaborationCommunication
Languages:English
Tech Stack:PythonJavaScriptNode.jsNext.jsAWSGCPKafkaRabbitMQPub/Sub

Eligibility

Work Authorization:Authorization required. Sponsorship not provided.

Company Brief

AfterQuery
Industry: Professional Services
Website