Senior JavaScript Engineer

1 week ago

Tel Aviv, Tel Aviv, Israel HUMAN Full time $104,000 - $130,878 per year

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.

Responsibilities

  • 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.

Qualifications

  • 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.

About HUMAN Security
HUMAN was founded in a Brooklyn sci-fi bookstore with a hacker mindset and the lofty mission of making the internet safer by putting humans first. Today, our Human Defense Platform safeguards enterprises from sophisticated bots, fraud, and account abuse, verifying the humanity of more than 20 trillion interactions per week for the world's biggest brands and internet platforms.

HUMAN is an equal opportunity workplace dedicated to protecting the internet's integrity for everyone. We believe in putting people first, embracing diversity of thought from our global teams, and welcoming all individuals to share their unique experiences as we fight cybercrime together. We support our Humans with a comprehensive total rewards package for personal and professional development, including well-being and learning stipends, flexible work options, and dedicated time off. While our HQ is in NYC, we have teams worldwide.

HUMAN is growing fast, and there's never been a more meaningful time to join us. If you thrive on solving complex problems and want to help shape the future of cybersecurity, join us as we build a safer, more human internet.

If you are an individual with a disability or special need that requires accommodation, please contact us directly.

  • JavaScript Tech Lead

    7 days ago

    Tel Aviv, Tel Aviv, Israel HUMAN Full time ₪70,000 - ₪120,000 per year

    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,...

  • Senior Software Engineer

    7 days ago

    Tel Aviv, Tel Aviv, Israel Legion Security Full time ₪104,000 - ₪130,878 per year

    Ok - let's make it short. We're looking for aSenior Software Engineerwithat least 6 years of experience and a background in startups or military tech units. If you're excited about building systems from scratch and making a big impact in a fast-moving startup, this one's for you.What You'll DoArchitect, develop, and deploy systemsWrite clean, efficient code,...

  • Senior Frontend Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel Goldjobs Full time ₪90,000 - ₪120,000 per year

    We're looking for an exceptional Senior Frontend Engineer to join our innovative frontend team. You'll be at the heart of creating remarkable user experiences, solving complex technical challenges, and directly impacting our core product development. If you're passionate about building sophisticated frontend applications and want to shape products used by...

  • Senior Frontend Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel Eleos Health Full time ₪90,000 - ₪120,000 per year

    Who is Eleos Health? Today, more people than ever are speaking publicly about their mental health. Whether it's ourselves, our friends and family or even public figures, taking care of your behavioral health is no longer a taboo, it's vital, and it's only human. Eleos is on a mission to help deliver the world's most effective behavioral care through...

  • Senior Software Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel galitechOnline Full time ₪480,000 per year

    Job Title:Senior Software Engineer ( Cybersecurity industry)# of Positions:2Budget:40,000 NIS per monthContract Duration:6 months (Maternity Leave Replacement)Experience Required:Minimum 5 years relevant experience in an international reporting environmentProbation Period:NoDepartment Supported:Frontend EngineeringScheduled Hours:45 hours per...

  • Senior Fullstack Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel Finout Full time $125,000 - $175,000 per year

    Cloud is now one of the biggest business expenses—and one of the hardest to manage.At Finout, we're not just shedding light on spend—we're giving companies the power to make smarter, faster, and more strategic decisions about the cloud.We're trusted by brands likeThe New York Times, Wiz, Elastic, SiriusXM, andLyft, and backed by top-tier investors with...

  • Senior Software Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel Autodesk Full time $125,000 - $175,000 per year

    Job Requisition ID # 25WD89918Senior Software EngineerAt Autodesk Construction Solutions, we solve real problems.Construction productivity has lagged behind the rest of the labour industries for decades, but this is all about to change as the industry starts adopting technology and adapting to the digital world. We're seeking a Senior Software Engineer for...

  • Senior Full Stack Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel C8 Health Full time $90,000 - $120,000 per year

    Senior Fullstack Engineer –Tel Aviv, Israel (Hybrid)About C8 HealthC8 Health is a fast-growing healthcare technology company transforming how hospitals manage and share knowledge. Our mission is to help hospitalsimplement their best practices effectively and provide consistent, high-quality carethrough intuitive, intelligent solutions that integrate...

  • Senior Software Engineer, AI

    1 week ago

    Tel Aviv, Tel Aviv, Israel XM Cyber Full time $125,000 - $175,000 per year

    XM Cyber is a global leader in hybrid cloud security. XMCyber brings a new approach that uses the attacker'sperspective to find and remediate critical attack pathsacross on-premises and multi-cloud networks. The XMCyber platform enables companies to rapidly prioritize andrespond to cyber risks affecting their business-sensitivesystems.About the role:Are you...

  • Senior Software Engineer

    1 week ago

    Tel Aviv, Tel Aviv, Israel Experis Israel Full time $150,000 - $200,000 per year

    We're hiring aSenior Software Engineerto join a fast-growing cybersecurity startup and contribute to building our cloud-native Security Services Edge (SSE) platform.This is an excellent opportunity to work with cutting-edge technologies, tackle complex challenges, and make a real impact on how enterprises stay secure.Tel Aviv I HybridResponsibilities:Lead...