Senior Software Engineer, Client Integration

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, Spain, India, and Argentina. Arkose Labs protects enterprises from cybercrime and abuse.

About the Role

We are looking for a Senior Software Engineer to join our Client Integrations team. You'll be a technical leader within a motivated and supportive team, responsible for the design and development of key systems used both internally and externally. Your focus will be on leading frontend development of our client-side JavaScript that our customers use to integrate with us, ensuring it's performant and scalable across a wide range of browsers and devices. You'll also drive backend development of services written in Go, supporting our client-side code with robust APIs capable of handling the traffic of some of the internet's largest companies.

Join us to defend against fraud and abuse by bankrupting the business model of fraud!

What you'll be doing

• Design, test, and implement features for our client-side JavaScript embedded into hundreds of millions of requests per day
• Drive architectural decisions for systems owned by the team and contribute meaningfully to technical strategy discussions
• Collaborate effectively across multiple cross-functional teams to build unique and innovative features that combat fraud and bots
• Architect cutting-edge fingerprinting and device identification methods to protect the integrity of our customers' businesses
• Lead code reviews, establish comprehensive automated testing strategies, and drive improvements to our development processes and engineering best practices
• Communicate complex technical concepts to executive leadership and non-technical stakeholders
• Support complex customer integration challenges and lead technical discussions with internal and external stakeholders
• Represent engineering perspectives in product and business strategy discussions
• Provide formal mentoring and technical guidance to P1 and P2 engineers

What we want from you

Need to have

• 5+ years relevant software engineering experience with demonstrated technical leadership
• Strong proficiency with JavaScript, with deep understanding of performance optimization and cross-browser compatibility
• Strong proficiency with backend languages (we use Go)
• Strong proficiency with DOM manipulation, event handling, and Web APIs
• Strong proficiency with modern frontend frameworks and libraries, with ability to guide integration strategies and architectural decisions
• Strong proficiency with Content Delivery Networks (CDNs) including edge functions and workers
• Strong proficiency with cloud platforms, particularly AWS and Azure, with cost optimization experience
• Experience designing and scaling NoSQL databases and caching solutions
• Experience with performance testing, cross-browser compatibility testing, and optimization techniques
• Proven ability to communicate complex technical concepts to executive leadership and non-technical stakeholders
• Comfortable participating in an equitable team on-call roster to support our customers 24x7
• Experience taking ownership of project delivery from conception through implementation
• Ability to work independently on complex technical challenges with minimal oversight, effectively handling ambiguous requirements
• Ability to contribute meaningfully to technical discussions and facilitate decision-making within engineering teams

Nice to have

• Extensive experience with DynamoDB, ScyllaDB, Redis, and Memcached
• Experience with testing frameworks, methodologies, and test automation strategies at scale
• Knowledge of web accessibility standards and compliance requirements
• Experience leading Agile development practices and team capability development
• Experience working with Kubernetes deployments and container orchestration
• Experience designing and optimizing CI/CD pipelines with measurable impact
• Experience with monitoring, observability, and performance analysis tools
• Deep understanding of security best practices for client-side applications
• Experience leading cost optimization initiatives with demonstrated business impact
• Experience representing engineering in cross-functional strategic discussions

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, 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 Roblox, Microsoft, Adobe, Expedia, Snapchat, and Zilch.

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.

#LI-Hybrid #LI-Midsenior

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