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KERV ai Logo KERV ai · IT - Software Development

Software Engineer, Tags Distributions

United States, Austin Employment contract 120000.00 - 155000.00 USD / Year · Job Posted May 03, 2026
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Job Description

As a Software Engineer on KERV’s Tag Distribution team, you’ll be one of the first engineers dedicated to a new team focused on our ad tag infrastructure — the systems responsible for serving and optimizing ad tags to publishers and programmatic platforms globally. This is a backend and AWS-heavy role with unique challenges in performance, reliability, and international distribution. You’ll work across a mix of architectures — from a persistent Node.js API that assembles and serves VAST ad tags, to a growing set of serverless microservices on AWS handling dynamic destinations, geo-targeted redirects, and tag validation. The infrastructure spans DynamoDB Global Tables replicated across multiple U.S. regions, edge computing for redirect flows, and caching layers that support high-throughput ad delivery. You’ll also help lead the migration and refactoring of our core VAST API from our legacy monolith into a purpose-built tag server.

Job Responsibility

  • Build and maintain KERV’s ad tag distribution services
  • Develop and operate serverless microservices that support dynamic ad serving, dynamic creative optimization, geo-targeted redirects, and tag validation workflows
  • Lead the migration and refactoring of core VAST API functionality from our legacy monolith into our dedicated tag server architecture
  • Optimize for performance and reliability across caching layers, proxy services, and multi-region data replication
  • Help harden production systems: improve observability, error handling, alerting, and cost/performance tuning
  • Contribute to architectural decisions
  • Write clean, well-tested code
  • Participate in team code reviews
  • Participate in sprint planning
  • Communicate effectively within the engineering team and with non-technical teams
  • Have the discipline to shift between establishing new features and maintaining legacy features

Requirements

  • 3–7+ years of professional experience developing backend or full-stack web applications
  • Strong proficiency in JavaScript/Node.js in production environments
  • Hands-on experience with AWS services — particularly Lambda, DynamoDB, S3, CloudFront, or comparable cloud infrastructure
  • Experience building or operating systems that serve high volumes of traffic with demanding performance requirements
  • Familiarity with serverless architectures and event-driven design patterns
  • Comfort working with and refactoring legacy codebases
  • Ownership mindset
  • Strong asynchronous communication skills
  • Experience with or strong interest in AI-driven prompt engineering and AI coding assistants

Nice to have

  • Digital advertising experience, particularly with ad serving, tag management, VAST, SIMID, OpenRTB, or programmatic platforms
  • Experience with edge computing (Lambda@Edge, CloudFront Functions, or equivalent CDN-level compute)
  • Experience with DynamoDB Global Tables or multi-region database replication
  • Experience with XML parsing and transformation in high-throughput contexts
  • Background in API design and operation
  • Experience with caching strategies at the application and CDN layers
  • Experience with the Serverless Framework or similar IaC tools
  • Familiarity with geo-targeting, IP-based routing, or international ad delivery
  • Experience developing an enterprise or SaaS product
  • Previous experience in a startup environment

What we offer

  • Unlimited PTO
  • Competitive compensation packages
  • Comprehensive health and wellness benefits
  • Mental Health Support via Samata Health paid 100% by KERV
  • 401K with company match and 100% vesting on day 1
  • Unlimited referral bonuses
  • Flexible working schedules with remote and hybrid opportunities
  • Fitness Reimbursement Program
  • Moments that Matter program
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