Principal Software Engineer - Next-Generation API & AI Platform Architecture

What You’ll Do Next‑Generation API Architecture Architect and implement customer‑facing data and intelligence APIs with clear versioning, SLAs, and backward compatibility. Define and enforce API contracts for: Low latency, high throughput endpoints Agentic workflows (tools, actions, state transitions, handoffs) Context retrieval and enrichment Design APIs as durable platform interfaces, not thin wrappers over storage systems. Establish standards for schema governance, payload design, and service boundaries. Agentic & ML Platform Integration Architect service layers that support agentic workflows, including orchestration interfaces, guardrails, and runtime observability. Build API surfaces that expose model outputs safely and consistently. Collaborate with MLEs and Data Scientists to move models from experimentation into robust inference services. Ensure proper lifecycle management, monitoring, and rollback mechanisms for ML‑powered endpoints. Data Platform & Context Hubs Design and implement service layers that sit on top of the gold‑layer system of record. Build and evolve context hubs derived from authoritative systems of record, enabling consistent entity, identity, or risk context for downstream services. Ensure APIs are aligned with medallion architecture principles and platform data contracts. Prevent fragmentation by maintaining strong coupling to canonical schemas and governed data models. Distributed Systems & Reliability Design high‑throughput, low‑latency services supporting batch and streaming workloads. Implement scalable infrastructure patterns on AWS. Ensure strong observability, error handling, performance tuning, and cost awareness. Drive infrastructure‑as‑code practices and production readiness standards. Technical Leadership Serve as a senior architectural voice in design reviews. Raise the bar on code quality, system design, and operational rigor. Mentor engineers on API design, distributed systems, and ML integration patterns. Influence platform direction through technical depth rather than organizational authority. Requirements 10+ years of experience building distributed systems, APIs, or large‑scale data platforms. Deep experience designing and implementing customer‑facing APIs as long‑lived products. Strong understanding of schema governance, versioning strategies, and contract design. Experience productionizing ML models and exposing inference services. Experience designing or integrating agentic or autonomous workflows. Experience building service layers on top of systems of record or semantic data layers. Strong background in distributed systems reliability, observability, and scalability. Proficiency in Go & Python (and/or backend service languages). Hands‑on experience with Databricks/Snowflake. Strong experience with AWS infrastructure and infrastructure‑as‑code tools. Nice to Have AWS services including Redshift, S3, EC2, and related cloud‑native tooling. Data stores including Elasticsearch, PostgreSQL, Redis, and graph databases (e.g., Neo4j or AWS Neptune). Experience building high‑performance APIs and service layers over heterogeneous data systems. Familiarity with Databricks/Snowflake and/or SageMaker is a plus. Experience in cybersecurity, identity, fraud, or risk systems is a plus. U.S.‑Based Benefits + Perks (for Full Time Employees) 401(k) with Employer Contribution Health, Vision, and Dental Insurance Health Savings Account (HSA) available with Employer Contribution Employer Paid Life, Short‑term, and Long‑term Disability Insurance Generous PTO Plan and 16 paid holidays per year U.K.‑Based Benefits + Perks (for Full Time Employees) Retirement Savings Plan with Employer Contribution Employer Provided Private Health Insurance and Healthcare Cashplan Employer Paid Life Insurance and Income Replacement Generous Holiday Plan and 14 paid holidays per year SpyCloud is not sponsoring visas at this time. For applicants residing in California, please read SpyCloud's CCPA Notice. For applicants residing in the UK, please read SpyCloud's Employee Privacy Notice. SpyCloud is an Equal Employment Opportunity and affirmative action employer of choice. All aspects of employment decisions will be based on merit, performance, and business needs. We do not discriminate on the basis of any status protected under federal, state, or local law. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. Women, minorities, individuals with disabilities, and protected veterans are encouraged to apply. SpyCloud complies with applicable state and local laws governing nondiscrimination in employment. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. SpyCloud expresses no tolerance for workplace harassment. Improper interference with the ability of SpyCloud employees to perform their job duties may result in discipline up to and including discharge. SpyCloud participates in the E‑Verify program in all locations. If you need assistance or accommodation due to a disability, you may contact us. #J-18808-Ljbffr SpyCloud