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.

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FursaFursa
AfterQuery
AfterQuery
6 months ago

Senior Software Engineer, Infrastructure & Platform

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Source: Company careers pageValidated by: Fursa AI
Last checked: 9 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
Digital marketing agency offering SEO, PPC, web design, content strategy, and analytics services to help businesses improve online visibility, engagement, and conversion performance.
Industry: Professional Services
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