Senior Software Engineer

The mission of Arkose Labs is to create an online environment where all consumers are protected from online spam and abuse. Recognized by G2 as the 2025 Leader in Bot Detection and Mitigation, with the highest score in customer satisfaction and largest market presence four quarters running, Arkose Labs offers the world's first $1M warranties for credential stuffing and SMS toll fraud. With 20% of our customers being Fortune 500 companies, our AI-powered platform combines powerful risk assessments with dynamic threat response to undermine the strategy of attack, all while improving good user throughput. Headquartered in San Mateo, CA, with employees in London, Costa Rica, Australia, India, and Argentina. Arkose Labs protects enterprises from cybercrime and abuse.

What you’ll be doing

• Work on high-traffic cybersecurity software services running at a global scale, serving hundreds of millions of requests per day (and increasing)
• Automate core flows for detecting and taking action against fraudulent Internet traffic, using statistical algorithms and Machine Learning
• Design and test new components within a complex event-driven architecture
• Work on building highly available, zero-downtime middleware and front-end products.
• Help build software that spans from the browser all the way down to analytics data pipelines - our engineers work to support a dedicated data science/blue watch team
• Work within an agile, cross-functional team (SWE, SRE, SOC, QE) to build out and own services and projects, from requirements + specs to release and maintenance
• Help with migrating from a monolithic system and AWS lambdas to a microservices-based architecture running on Kubernetes

What we want from you

• 3+ years experience in a commercial environment using back-end programming languages - Python and/or Go
• 1.5+ years of database (NoSQL and Relational) experience
• 1.5+ years experience with microservices
• Experience with agile development (Scrum/Kanban)

Nice to have

• Experience with statistics, data analysis, data mining, machine learning, or other data-focused discipline.
• Experience with implementing and maintaining CI/CD pipelines
• Experience with Docker/containers, and ideally container orchestration (e.g. Kubernetes)
• Strong knowledge of web/HTTP concepts and methodologies - DNS, TLS, browser caching, CDNs (e.g. Cloudflare/CloudFront)

Why Arkose Labs?

At Arkose Labs, our technology-driven approach enables us to make a substantial impact in the industry, supported by a robust customer base consisting of global enterprise giants such as Microsoft, Roblox, OpenAI, and more. We’re not just a company; we’re a collaborative ecosystem where you will actively partner with these influential brands, tackling the most demanding technical challenges to safeguard hundreds of millions of users across the globe.

Why do top tech professionals choose Arkose Labs?

• Cutting-Edge Technology: Our high-efficacy solutions, backed by solid warranties, attract leading, global enterprise clients.
• Innovation and Excellence: We foster a culture that emphasizes technological innovation and the pursuit of excellence, ensuring a balanced and thriving work environment.
• Experienced Leadership: Guided by seasoned executives with deep tech expertise and a history of successful growth and equity events.
• Ideal Size: We’re structured to be agile and adaptable, large enough to provide stability, yet small enough to value your voice and ideas.

Join us in shaping the future of technology. At Arkose Labs, you’re not just an employee; you’re part of a visionary team driving global change

The most recognizable brands in the world select Arkose Labs, including OpenAI, Roblox, Microsoft, Adobe, Expedia, Snapchat, Zilch, and ZipAir.

We value your unique contributions, perspectives, and experiences. Be part of a diverse and high-performing environment that prioritizes collaboration, excellence, and inclusion. We hire the best, focus on their professional development, and offer support for continuing education.

We value:

• People: first and foremost they are our most valuable resource. Our people are independent thinkers who make data driven decisions and take ownership and accountability in all the things they do.
• Team Work. We demonstrate respect, trust, integrity, and communicate openly with a positive can do attitude and constructively challenge one another
• Customer Focus. We empathize with our customers and obsess about solving their problems
• Execution with precision, professionalism and urgency
• Security. It’s the lens through which we implement our processes, procedures, and programs

Benefits:

• Competitive salary + Equity
• Beautiful office space with many perks
• Robust benefits package
• Provident Fund
• Accident Insurance
• Flexible working hours and work from home days to support personal well-being and mental health

Arkose Labs is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Arkose Labs will provide reasonable accommodations for qualified individuals with disabilities.