Senior Software Engineer II, Marketing Enablement & Technology

Instacart is a grocery technology company whose Marketing Enablement & Technology team builds systems, APIs, and data pipelines for paid marketing channels. The Senior Software Engineer will provide technical leadership for the Paid MarTech pod by driving technical roadmaps, making scalable architectural decisions, leading cross-team initiatives, improving developer productivity, and mentoring engineers.

Responsibilities:

• Drive the team's technical roadmap and architectural decisions, balancing short and long-term investments to build reusable, scalable systems that serve current and future marketing needs
• Enhance developer productivity by evolving processes, tools, and abstractions that improve team efficiency, system extensibility, and code quality across the codebase
• Lead team-wide initiatives and propose strategic work on behalf of engineering management, partnering directly with senior Product and Marketing leaders on product design and technical decisions
• Champion advanced observability, resilience (including chaos engineering and disaster recovery), cost optimization, and security-by-design principles across all team projects
• Mentor engineers up to L5, act as a force multiplier through well-documented processes, and proactively resolve conflicts that block execution across teams

Requirements:

• 8–12 years of software engineering experience with demonstrated expertise leading technical roadmaps and making architectural decisions that impact team-level systems
• Expert-level proficiency in Python with proven ability to design and implement reusable abstractions, frameworks, and patterns adopted across multiple projects
• Deep technical knowledge of building scalable, high-throughput systems with comprehensive observability, cost efficiency, and security considerations
• Demonstrated ability to partner with senior Product and Marketing leaders, significantly influencing product roadmap through identification of strategic technical opportunities
• Proven track record of enhancing team productivity through process improvements, tooling development, and mentorship of senior engineers
• Excellent communication and influence skills with ability to drive execution of cross-team and cross-functional initiatives while navigating organizational context and dependencies
• Experience defining and establishing infrastructure, tooling, and best practices for AI-assisted development across engineering teams
• Deep expertise in ad tech platforms and marketing technology ecosystems, recognized as a domain expert within the organization
• Track record of leading large-scale legacy system modernization efforts and strategically managing technical debt at team level
• Experience establishing coding standards, architectural patterns, and technical review processes that elevate team quality
• Demonstrated ability to proactively contribute during crises outside core technical expertise, serving as technical consultant for sub-pillar level initiatives
• Experience collaborating with external teams on cross-pillar partnerships and acting as point of contact for technical collaboration