---
title: 'Security Engineer at Simular'
canonical: 'https://feeny.ai/job/security-engineer-simular-singapore-r22tnznj09wa'
type: 'job'
last_seen: '2026-09-08'
---

# Security Engineer at Simular

- **Company:** Simular
- **Location:** Singapore
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-06-18
- **Last confirmed live:** 2026-09-08
- **Apply:** https://jobs.ashbyhq.com/simular/92568ea2-5a35-4779-b4b9-9b66403fb85f

## Job description

Where multiple locations are listed for this role, the position may be based in any of those locations, with priority determined according to the order of listing.

At Simular, we're building the next generation of computer use agents — AI systems that operate computers exactly as humans do. As our first dedicated security hire in Singapore, you'll own security end-to-end: hardening the applications our users touch, the infrastructure our agents run on, and the new and evolving attack surface introduced by autonomous AI agents themselves.

This is a hands-on, builder-style role. You won't be writing policy documents from an ivory tower; you'll be reading code, fixing it, and shipping the tooling that keeps Simular safe as we scale.

## What you'll do

- Own application security across our product surface: threat modeling, secure code review, SAST/DAST, dependency and supply-chain hygiene
- Harden our cloud and infrastructure: AWS/GCP configuration, Kubernetes, secrets management, network boundaries, CI/CD pipeline security
- Build the security foundation for our agent platform: sandboxing, permission boundaries, prompt-injection defenses, data exfiltration controls, and safe tool execution
- Partner with engineering and research to bake security into product design from day zero, not bolted on later
- Run incident response and lead investigations when things go wrong; build the playbooks so the next one is faster
- Drive vendor reviews, customer security questionnaires, and the compliance work needed as we move upmarket (SOC 2, ISO, etc.)
- Establish the security culture: lightweight processes, useful tooling, clear ownership; scrappy, not bureaucratic

You might be a fit if

- You have a BS/MS in Computer Science or equivalent experience, with 3-6 years in security engineering
- You're a strong engineer first: comfortable shipping code in Python, Go, or TypeScript, not just reviewing others'
- You have hands-on experience across two or more of: AppSec, cloud security (AWS/GCP), container/Kubernetes hardening, CI/CD security
- You understand modern threat models: supply-chain attacks, identity and secrets, web app vulnerabilities, infrastructure misconfiguration
- You're genuinely curious about AI and agent security: how prompt injection works, how to sandbox autonomous tool use, how to reason about data flow in agentic systems
- You thrive as the first security hire: you can prioritize ruthlessly, build from zero, and earn trust by shipping rather than blocking
- Bonus: red-team or offensive security background, experience securing ML/AI pipelines, or prior early-stage startup experience

## About Simular

## Company Overview
- **One-liner**: Simular is a research-driven AI company building autonomous computer agents that operate across browsers, desktops, and mobile devices to automate repetitive digital work.
- **Entity Type**: Private (Series A, raised in December 2025)
- **Headquarters**: Palo Alto, California, United States
- **Founded**: 2023
- **Founders**: Ang Li (Co-Founder & CEO); other co-founders from DeepMind and Google backgrounds

## Core Business
- **Primary industry**: Artificial Intelligence / Autonomous Agents
- **Target customers**: B2B enterprises (initially insurance, healthcare, and other industries with heavy form‑filling) and knowledge workers who need automation of computer‑based tasks.
- **Mission statement**: “We believe humans shouldn't be bound to computers. AI should free us from devices so we can live a better, more human life.” [simular.ai](https://www.simular.ai/)

## Products & Services
- **[Sai](https://www.simular.ai/)**: An always‑on, cloud‑based AI agent that uses a computer just like a human – clicking, typing, operating GUIs, and also using APIs, terminals, and writing code. It runs on a private, isolated virtual desktop and includes guardrails for safety.
- **[Simular Pro](https://www.cbinsights.com/company/simular)**: A more advanced agent platform built on SimuLang (a custom DSL on JavaScript) that delivers production‑grade, repeatable multi‑step automation across thousands of steps. Designed for high‑reliability enterprise workflows.
- **Research‑driven foundation**: The company releases open‑source benchmarks and models, consistently topping industry benchmarks like OSWorld (72.6% success), WebVoyager (90.1%), and AndroidWorld (71.6%) across browsers, computers, and smartphones. [simular.ai](https://www.simular.ai/)

## Market Standing
- **Valuation**: Not publicly disclosed
- **Total Funding**: Approximately $27M across three rounds:
  - Pre‑Seed (Sept 2023): $500K led by South Park Commons
  - Seed (June 2024): $5M led by Basis Set Ventures
  - Series A (Dec 2025): $21.5M led by Felicis, with participation from NVentures (Nvidia), South Park Commons, and Lenny Rachitsky. [linkedin.com](https://www.linkedin.com/company/simular-ai)
- **Key Metric**: 20 employees (+78.6% year‑over‑year) and 30 active job postings as of mid‑2025. [linkedin.com](https://www.linkedin.com/company/simular-ai)
- **Notable Investors/Partners**: Felicis, NVentures (Nvidia), South Park Commons, Basis Set Ventures, Lenny Rachitsky.
- **Growth Signals**: 
  - Fast headcount growth (nearly 80% YoY)
  - 30 open positions across engineering, research, product, and operations
  - Recent news: Simular debuted a collaborative browser agent at ICLR 2025 and was featured in WIRED (“Meet The AI Agent With Multiple Personalities”) and The Register (targeting insurance & healthcare). [linkedin.com](https://www.linkedin.com/company/simular-ai)

## Competitive Advantages
- **Neuro‑symbolic approach**: Combines the flexibility of large language models (LLMs) with the precision and repeatability of symbolic code, overcoming the limitations of both pure LLM agents and traditional RPAs. [simular.ai](https://www.simular.ai/about)
- **Benchmark dominance**: The only agent that simultaneously tops benchmarks across browser, computer, and smartphone environments. [simular.ai](https://www.simular.ai/)
- **Talent pool**: Founders and core team hail from DeepMind, Google, and top AI labs, with expertise in reinforcement learning, compiler design, and robotics. [simular.ai](https://www.simular.ai/about)
- **Open‑source ecosystem**: Publishes research and models, building community trust and accelerating adoption.

## Strategic Focus
- **Short‑term**: Scale the enterprise customer base, starting with industries like insurance and healthcare that have high volumes of form processing. [linkedin.com](https://www.linkedin.com/company/simular-ai)
- **Long‑term**: Achieve AGI by building increasingly autonomous computer agents that free humans from repetitive screen work. The company’s roadmap is “step toward truly autonomous computers” that operate across all digital environments. [simular.ai](https://www.simular.ai/about)

## Why Work Here
- **Impact**: Join a small, elite team of 20 people (mostly technical) who are building the next generation of AI agents. Employees have backgrounds from DeepMind, Google, TikTok, and top universities.
- **Culture**: Described as a “research‑driven” environment where scientific rigor meets real‑world product engineering. The team values autonomy and ownership – “we’re a small group of scientists and engineers from DeepMind, Google, and top AI labs.” [simular.ai](https://www.simular.ai/about)
- **Remote / Hybrid**: Offices in Palo Alto, Singapore, Germany, and Canada. The description of “private, cloud‑based virtual desktop” suggests a remote‑friendly culture, though specific workplace policy is not stated.
- **Perks & Growth**: Not explicitly listed, but the company offers roles across engineering, research, product, operations, and finance – with a strong internship program (5 interns currently). 30 open positions indicate rapid scaling. [linkedin.com](https://www.linkedin.com/company/simular-ai)
- **Notable**: The company values “time back” for employees and believes AI should allow humans to spend more time with family, in nature, or on creative work.

## Sources
1. [simular.ai](https://www.simular.ai/)
2. [simular.ai/about](https://www.simular.ai/about)
3. [simular.ai/careers](https://www.simular.ai/careers)
4. [linkedin.com/company/simular-ai](https://www.linkedin.com/company/simular-ai)
5. [cbinsights.com/company/simular](https://www.cbinsights.com/company/simular)

## Other roles at Simular

- [GTM Intern, Growth Operations](https://feeny.ai/job/gtm-intern-growth-operations-simular-palo-alto-4n899zztejyw) — Palo Alto, CA
- [GTM Intern, Content & Distribution](https://feeny.ai/job/gtm-intern-content-distribution-simular-palo-alto-ecpfgr5skz51) — Palo Alto, CA
- [Finance Operations Intern](https://feeny.ai/job/finance-operations-intern-simular-singapore-9p2bvjny404b) — Singapore
- [Data Analyst Intern](https://feeny.ai/job/data-analyst-intern-simular-singapore-5f7rz7bdhmet) — Singapore
- [Design Engineer Intern](https://feeny.ai/job/design-engineer-intern-simular-singapore-rzeze697vppa) — Singapore
- [Product & User Operations Intern](https://feeny.ai/job/product-user-operations-intern-simular-singapore-9ngg5pbg6b1e) — Singapore
- [Software Engineer, Monetization Platform](https://feeny.ai/job/software-engineer-monetization-platform-simular-singapore-vxwc7dm052yh) — Singapore
- [AI Product Manager](https://feeny.ai/job/ai-product-manager-simular-singapore-75v4nw6m6h4m) — Singapore
- [Growth Engineer](https://feeny.ai/job/growth-engineer-simular-singapore-3x6dvgmsb025) — Singapore
- [Product & User Operations](https://feeny.ai/job/product-user-operations-simular-singapore-6sjrhhhts1a3) — Singapore