Senior Software Engineer, ML Infrastructure

Senior Software Engineer (Infrastructure) Arena Intelligence is seeking a Senior Software Engineer (Infrastructure) to lead the design and development of scalable, high-performance real-time data and API infrastructure. In this role, you'll architect systems that capture and process large volumes of serving requests in real time, powering the insights that help researchers and developers build the world's most advanced AI and its applications. Your work will be foundational to how we surface trustworthy, transparent, and timely evaluation signals across the platform. This role is ideal for someone who thrives in fast-moving environments, cares deeply about performance and reliability, and wants to build systems that help the AI community better understand what models are the best for their real-world use cases.You'll Architect and scale high-performance, real-time API and data systemsDesign and implement low-latency pipelines to process and analyze large-scale event streamsEnsure reliability through robust data integrity, availability, and consistency mechanismsMentor and guide engineers on infrastructure best practices, architecture, and performance tuningCollaborate cross-functionally with AI researchers, product leaders, and engineers to anticipate evolving infrastructure needs and deliver resilient, extensible systemsYou'll have 5+ years of experience in software engineering, with a focus on infrastructure or large-scale data and ML systemsDeep expertise in distributed systems, stream processing, and scalable backend architectureProven ability to design and operate low-latency, high-throughput, and fault-tolerant systemsStrong foundation in systems design, performance tuning, and building reliable, fault-tolerant servicesComfortable in a dynamic, high-ownership, fast-growth environmentPrior experience with PyTorch model development is a plus.What We Offer Competitive compensation and equity aligned to the markets where our team members are based. The base salary range will depend on the candidate's permanent work location.Comprehensive health and wellness benefits, including medical, dental, vision, and additional support programs.The opportunity to work on cutting-edge AI with a small, mission-driven teamA culture that values transparency, trust, and community impactCome help build the space where anyone can explore and help shape the future of AI.Arena Intelligence provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.