R&D Software Engineer Lead & CISO

We’re seeking an experienced Lead Software Engineer to guide our product team in developing and deploying scalable, AI-enabled systems. You’ll take end-to-end ownership of major backend and data initiatives, mentor a team of engineers, and collaborate with Product, Research, Operation, Sales, and Information Security to maintain robust compliance.

• Lead the design, development, and deployment of scalable, AI-driven backend and data systems, ensuring alignment with strategic objectives and performance standards.
• Oversee the end-to-end lifecycle of R&D projects, from concept through prototyping and deployment, ensuring timely delivery and adherence to quality standards.
• Provide technical leadership and mentorship to junior and mid-level engineers, fostering a collaborative and high-performance team environment.
• Collaborate with product managers, data scientists, and other stakeholders to define project requirements and deliver innovative solutions.
• Serve as Chief Information Security Officer (CISO) to develop, implement, and enforce information security policies and procedures, ensuring compliance with relevant regulations and industry best practices.
• Conduct regular audits and risk assessments to identify vulnerabilities and ensure the integrity and confidentiality of information assets.

• Bachelor’s or Master’s in Computer Science, Engineering, or related field
• Experience with security best practices (OWASP, secure coding, API security)
• Familiarity with compliance frameworks (e.g., NIST, ISO 27001, EO 14117)
• Experience with containerization, orchestration (Docker, Kubernetes), Infrastructure as Code

Location: Mountain View, CA Type: Full Time, Onsite

• 6+ years of professional software development experience, with 2+ years in a lead or tech-lead role
• Strong backend expertise: Java, C++, Scala, Python—plus cloud infrastructure (GCP, AWS) and data frameworks (e.g., Spark)
• Deep understanding of algorithms, data structures, microservices, and distributed systems
• Familiarity with both SQL and NoSQL databases
• Well-honed software engineering practices: version control, CI/CD, unit testing, code reviews
• Experience architecting and deploying production-grade systems and mentoring engineers
• Strong communication, problem-solving, and organizational skills
• Proactive leadership: self-directed, resourceful, and comfortable steering projects in ambiguity
• Passion for learning, innovation, and advancing AI-driven products

• Mission alignment: If you want to use AI to dramatically improve people's lives, we will give you the best possible platform to realize this mission.
• Self-directed: We work best with people that are driven, motivated, and aspire to greatness. Are you the sort of person that, if you have time on your hands, will independently find interesting and useful things to do?
• Hungry to learn: We are eager to teach you new skills. But learning is hard work and this is something we hope you want to do.
• Team orientation: We work in small, fast-moving teams. We don't believe in lone wolves. We watch out for each other, and go after big goals together — as a team.Top of Form

Compensation : Base Salary Pay Range: $159k – $229k USD

MediaGo DSP is revolutionizing advertising with a next-gen, AI-driven programmatic platform. Backed by 22 years of digital advertising expertise, our high-performance infrastructure and speed-to-market advantage makes us the fastest-growing DSP. As an R&D Lead, you’ll shape both cutting-edge AI products and security-first development from day one.