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Zigsaw

Senior Software Engineer

Zigsaw

Sr. Software Engineer building simulation and AI capabilities for CTV advertising platform.

Posted 4/23/2026full-timeRemote • California • 🇺🇸 United StatesSenior💰 $155,584 - $320,320 per yearWebsite

Tech Stack

Tools & technologies
AWSPythonRustScalaSpark

About the role

Key responsibilities & impact
  • Design and build simulation environments that model CTV auction mechanics, inventory supply, and advertiser competition
  • Develop counterfactual and what-if frameworks for evaluating bidding strategies, budget allocation, and pacing algorithms offline
  • Build AI agents that explore strategy spaces, generate hypotheses, and automate experimentation within simulated environments
  • Use simulation to de-risk ML model deployments — validate new bidding and optimization strategies before they touch live traffic
  • Define the technical direction for simulation and AI infrastructure and mentor engineers on the team

Requirements

What you’ll need
  • Systems programming experience in Zig or similar (C, C++, Rust)
  • Deep understanding of probabilistic modeling, stochastic processes, or agent-based simulation
  • Hands-on experience with modern AI tools: LLMs, code generation, agentic workflows — and good judgment about when they help vs. when they don't
  • Adtech experience: you understand RTB mechanics, and the dynamics of programmatic advertising
  • Ability to translate business questions ("what happens if we change our bid strategy?") into rigorous simulation frameworks
  • Clear written communication: you'll be defining new technical directions and need to bring others along
  • Ownership: you scope, design, and ship systems end-to-end with minimal direction
  • Demonstrated ability to use AI to improve speed and quality in your day-to-day workflow for relevant outputs
  • Strong track record of critical evaluation and verification of AI-assisted work (e.g., testing, source-checking, data validation, peer review)
  • High integrity and ownership: you protect sensitive data, avoid over-reliance on AI, and remain accountable for final decisions and deliverables.
  • Nice-to-Haves:
  • Strong production Python skills and experience building simulation or modeling systems
  • Causal inference — uplift modeling, synthetic controls, difference-in-differences, or incrementality testing
  • Experience with discrete event simulation, Monte Carlo methods, or digital twins
  • Reinforcement learning — using simulated environments for policy learning and evaluation
  • Experience building agentic AI systems or multi-agent simulations
  • Big data experience with Scala and Spark
  • MLOps experience — model deployment, monitoring, and pipeline orchestration on AWS

Benefits

Comp & perks
  • 🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Zigsaw Website LinkedIn All Job Openings 11 - 50 employees Founded 2016 Making Job-search and talent discovery simpler, faster and effective for Job-seekers. Senior Software Engineer Job not on LinkedIn 🔥 0 minutes ago 🏄 California – Remote 💵 $155.6k - $320.3k / year ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer AWS Python Rust Scala Spark Apply Now Find Hiring Managers Customize resume for this job Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
  • Design and build simulation environments that model CTV auction mechanics, inventory supply, and advertiser competition
  • Develop counterfactual and what-if frameworks for evaluating bidding strategies, budget allocation, and pacing algorithms offline
  • Build AI agents that explore strategy spaces, generate hypotheses, and automate experimentation within simulated environments
  • Use simulation to de-risk ML model deployments — validate new bidding and optimization strategies before they touch live traffic
  • Define the technical direction for simulation and AI infrastructure and mentor engineers on the team 🎯 Requirements
  • Systems programming experience in Zig or similar (C, C++, Rust)
  • Deep understanding of probabilistic modeling, stochastic processes, or agent-based simulation
  • Hands-on experience with modern AI tools: LLMs, code generation, agentic workflows — and good judgment about when they help vs. when they don't
  • Adtech experience: you understand RTB mechanics, and the dynamics of programmatic advertising
  • Ability to translate business questions ("what happens if we change our bid strategy?") into rigorous simulation frameworks
  • Clear written communication: you'll be defining new technical directions and need to bring others along
  • Ownership: you scope, design, and ship systems end-to-end with minimal direction
  • Demonstrated ability to use AI to improve speed and quality in your day-to-day workflow for relevant outputs
  • Strong track record of critical evaluation and verification of AI-assisted work (e.g., testing, source-checking, data validation, peer review)
  • High integrity and ownership: you protect sensitive data, avoid over-reliance on AI, and remain accountable for final decisions and deliverables.
  • Nice-to-Haves:
  • Strong production Python skills and experience building simulation or modeling systems
  • Causal inference — uplift modeling, synthetic controls, difference-in-differences, or incrementality testing
  • Experience with discrete event simulation, Monte Carlo methods, or digital twins
  • Reinforcement learning — using simulated environments for policy learning and evaluation
  • Experience building agentic AI systems or multi-agent simulations
  • Big data experience with Scala and Spark
  • MLOps experience — model deployment, monitoring, and pipeline orchestration on AWS Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Senior Software Engineer, 3D 🔥 22 minutes ago DroneDeploy 201 - 500 🚀 Aerospace Website LinkedIn All Job Openings Senior Software Engineer responsible for designing and developing a web-based 3D viewer. Collaborating with cross-functional teams and leading complex 3D feature work for DroneDeploy's platform. 🇺🇸 United States – Remote 💰 Series F on 2021-01 ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Angular JavaScript Jest TypeScript Senior Principal Engineer, Product Cyber Vulnerability Assessment 🔥 39 minutes ago RTX 10,000+ employees 🚀 Aerospace Website LinkedIn All Job Openings Principal Engineer leading cybersecurity assessments for aerospace products, conducting vulnerability analyses and penetration tests to enhance product security posture. 🇺🇸 United States – Remote 💵 $132.4k - $251.6k / year ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer Cloud Cyber Security Senior Software Engineer 🔥 52 minutes ago Invoca 201 - 500 🤖 Artificial Intelligence 🤝 B2B 📡 Telecommunications Website LinkedIn All Job Openings Senior Software Engineer I at Invoca, focusing on CI/CD improvements and Ruby/Rails upgrades for the developer platform. 🇺🇸 United States – Remote 💵 $127k - $191k / year ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Docker Kubernetes Ruby Ruby on Rails Terraform Senior Software Engineer, DL Libraries Infrastructure 🔥 1 hour ago NVIDIA 10,000+ employees 🤖 Artificial Intelligence 🎮 Gaming Website LinkedIn All Job Openings Senior Software Engineer designing scalable infrastructure for deep learning libraries at NVIDIA. Collaborating with software engineers and infrastructure experts to deliver high-performance tools. 🇺🇸 United States – Remote 💵 $184k - $287.5k / year ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Docker Jenkins Kubernetes Open Source Python Senior Software Engineer – Platform Productivity 🔥 1 hour ago Grafana Labs 501 - 1000 🏢 Enterprise ☁️ SaaS 🤖 Artificial Intelligence Website LinkedIn All Job Openings Senior Software Engineer at Grafana Labs ensuring our internal teams efficiently release software on our cloud infrastructure. Focused on automation, CI/CD, and performance responsibilities in a remote setting. 🇺🇸 United States – Remote 💵 $154.4k - $185.3k / year ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Cloud Kubernetes Terraform View More Full-stack Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Hard Skills & Tools
ZigCC++Rustprobabilistic modelingstochastic processesagent-based simulationPythonreinforcement learningMLOps
Soft Skills
clear written communicationownershipcritical evaluationverificationhigh integrity