Job Description

About This Role We're looking for a Staff Backend Infrastructure Engineer to serve as the most senior IC on our small but growing infrastructure team. Our platform is mission‑critical and must function 24/7. In this role, you’ll own the core systems that keep our platform running, ensuring the stack and its fundamentals scale smoothly, remain supportable, and deliver the performance our users depend on. We expect candidates will typically have 7+ years of backend/infrastructure engineering experience, with a track record of leading complex projects at scale. Responsibilities Lead Technical Projects : Own and drive high‑impact backend and infrastructure initiatives, from design through production. Architect Scalable Systems : Design and implement distributed, fault‑tolerant backend services with an emphasis on performance and resilience. Strengthen Infrastructure : Evolve our containerized, cloud‑native platform, ensuring observability, reliability, and efficiency at scale. Optimize Performance : Profile and tune Java services, improve throughput/latency, and scale systems to handle high‑volume workloads. Mentor & Guide : Share expertise in backend engineering and infrastructure best practices with other engineers. Partner Cross‑Functionally : Collaborate with product engineering teams to deliver secure, scalable features and infrastructure improvements. Minimum Qualification Core Backend Expertise Deep proficiency in Java (JDK internals, concurrency, memory management, profiling, tuning). Strong background in building distributed systems (service‑to‑service communication, replication, consensus, failure handling). Experience with API design (REST/gRPC), serialization formats, and versioning strategies. Cloud & Infrastructure Hands‑on expertise with cloud platforms (AWS, GCP). Strong knowledge of containerization and orchestration (Docker, Kubernetes). Familiarity with Infrastructure as Code (Terraform or equivalent). Systems Engineering Familiarity with event‑driven architectures and streaming systems (Kafka, etc). Strong understanding of databases (SQL and NoSQL), transaction models, and distributed data management. Knowledge of caching strategies (Redis, Memcached, etc) and message queues. Observability & Reliability Experience with monitoring, logging, and tracing (DataDog, Prometheus, Grafana, ELK/EFK, OpenTelemetry, etc). Strong skills in debugging distributed systems in production. Security & Compliance Familiarity with secure coding practices, secrets management, and cloud security models. Knowledge of authentication/authorization frameworks (OAuth2, OIDC, JWT). Leadership & Communication Ability to lead design reviews, write technical proposals, and set engineering standards. Track record of mentoring other engineers on backend and infrastructure skills. Preferred Qualifications Experience in multi‑tenant SaaS architectures. Exposure to edge computing, IoT, or real‑time data processing. Background in performance benchmarking at scale. Prior experience in staff/principal engineer roles in a cloud‑native environment. Benefits and Pay Our headquarters are located in New York City’s Union Square. We believe in cross‑team collaboration and host offsites, outings, and team meals. We offer office lunch, a fully stocked snack bar, and up to 2 remote days per week. Our benefits package includes competitive base compensation, stock options, health and dental insurance, vision insurance, membership to premium primary and urgent care, and online medical providers. We also offer paid time off, 7 paid holidays, and a company‑wide winter break. The expected annual salary range for this role is $190,000–245,000 USD, depending on your level of expertise, experience, and qualifications. EEO Statement Sage is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. Sage makes hiring decisions based solely on qualifications, merit, and business needs at the time. #J-18808-Ljbffr Sage

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