Senior JavaScript Engineer

Reposted 3 Days Ago
Be an Early Applicant
Tel Aviv
Hybrid
Mid level
AdTech • Cloud • Information Technology • Machine Learning • Security • Software • Cybersecurity
We safeguard 1,200+ brands from digital attacks including bots, fraud and account abuse with Modern Defense.
The Role
The Senior JavaScript Engineer will design and develop advanced JavaScript techniques, lead a team, and collaborate with various stakeholders to enhance digital security systems.
Summary Generated by Built In
HUMAN’s Bot Defender is a market leading product designed to safeguard online platforms and digital assets from automated bot attacks. 
At HUMAN, our Sensor team is at the forefront of protecting online platforms by distinguishing real users from sophisticated bots. Our JavaScript-based sensor is a critical component of HUMAN’s detection capabilities, gathering high-fidelity signals from browsers and devices to help secure digital ecosystems at scale.

We are seeking an experienced engineer to join the Sensor team in pushing the boundaries of real-time, client-side JavaScript development. 

What you’ll do:

  • Drive the design, development, and optimization of advanced JavaScript techniques to collect signals (user behavior, device characteristics, browser APIs) securely and efficiently.
  • Own the full code lifecycle: architecture, development, deployment, monitoring, and continuous improvement.
  • Guide the team’s technical direction, balancing innovation with stability and scalability.
  • Lead, mentor, and grow a team of talented core JavaScript engineers focused on building detection sensors that operate across diverse browsers and devices.
  • Collaborate closely with Product, Research, Security, and Engineering teams to align technical execution with broader product goals.

Who you are:

  • 3+ years of hands-on software development experience, with deep expertise in vanilla JavaScript and browser internals.
  • Strong understanding of web security concepts, browser APIs, and the nuances of cross-platform development.
  • A JavaScript enthusiast who enjoys being hands-on: reviewing code, setting architecture and contributing to complex solutions.
  • Excellent communication and collaboration skills, with the ability to work effectively across disciplines.
  • Passionate about performance, security, and crafting elegant technical solutions.

Nice to have:

  • Experience with typed backend languages (e.g., Go, Java).
  • Familiarity with content delivery networks (CDNs) and large-scale deployment strategies.
  • Background in cybersecurity, bot mitigation, or fraud prevention technologies.

  • Join us and lead the team that powers the intelligence behind HUMAN’s defense against online threats — helping to keep the internet human.

Top Skills

Go
Java
JavaScript
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: New York, NY
393 Employees
Year Founded: 2012

What We Do

We stop bot attacks. Today’s sophisticated bots impersonate human behavior to evade detection technologies. To defeat today's bots, we use a unique multilayered approach that enables us to verify the humanity of digital interactions with unmatched speed and accuracy across Applications, Performance Marketing, and Advertising use cases.

Why Work With Us

Fighting cybercrime is not easy. We’re constantly pitted against well-funded and highly-skilled hackers and botnets. In order for us to stay ahead of our adversaries, we solve problems unconventionally, move fast, and create ‘tau’ for each other to stop them. If our mission to keep the internet human appeals to you, we should talk.

Gallery

Gallery

Similar Jobs

Remote or Hybrid
Tel Aviv, ISR
100K-100K

monday.com Logo monday.com

Product Manager

Productivity • Sales • Software
Remote or Hybrid
Tel Aviv, ISR

CrowdStrike Logo CrowdStrike

Software Engineer

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Hybrid
Tel Aviv, ISR

CrowdStrike Logo CrowdStrike

Data Engineer

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Hybrid
Tel Aviv, ISR

Similar Companies Hiring

Credal.ai Thumbnail
Software • Security • Productivity • Machine Learning • Artificial Intelligence
Brooklyn, NY
Standard Template Labs Thumbnail
Software • Information Technology • Artificial Intelligence
New York, NY
10 Employees
PRIMA Thumbnail
Travel • Software • Marketing Tech • Hospitality • eCommerce
US
15 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account