Staff Backend Engineer – Trust & Control Safety Systems
Posted 8hrs ago
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Job Description
Staff Backend Engineer architecting Trust, Controls & Safety systems for HighLevel's AI-powered business operating system. Securing high-volume workflows, transactions, and billing against fraud and unintended usage.
Responsibilities:
- Architect the future of HighLevel's Trust, Controls & Safety platform
- Lead technical direction for a real-time platform securing signups, SaaS checkouts, user management, and global communication usage
- Redesign and optimize data models, queries, and indexing strategies across MongoDB, Firestore, and Elasticsearch
- Own Elasticsearch reliability, including ingestion, indexing, shard strategy, and query performance for billions of documents
- Improve replication health and enforce predictable query and index latency
- Define data flow and integration boundaries between storage, cache, and APIs
- Build observability across data paths, including metrics, traces, slow query logs, replication lag, and cluster health dashboards
- Enforce unit, integration, and load testing standards
- Drive RFCs, ADRs, and design reviews
- Write code, design systems, and debug production issues
- Mentor engineers across squads and influence cross-functional stakeholders in Engineering, Product, Finance, Risk, Support, and channel teams
Requirements:
- 8+ years of experience building high-scale, mission-critical backend systems
- Deep expertise in concurrency, event-driven architectures, and consistency primitives (CAS, atomic dry-runs, idempotency)
- Experience with systems where correctness has financial consequences, such as metering, ledgers, billing, reservations, or payment gateways
- Technical leadership driving architecture for multi-team platforms from design to production
- Strong experience with relational and NoSQL data models, especially complex transactional data
- Working knowledge of streaming and analytical stores for time-windowed aggregation
- Experience designing policy- or rules-driven systems with versioning, safe rollout, and rollback
- Familiarity with monitoring, SLOs, and root-cause analysis in production environments
- Familiarity with hallucination mitigation strategies
- Track record of technical leadership without formal authority
- Excellent communication and cross-functional collaboration skills
- Pragmatic, hands-on engineering approach
- Experience with Elasticsearch cluster management, multi-tenant indexing, or lifecycle policies (nice to have)
- Familiarity with ClickHouse or other OLAP systems (nice to have)
- Background in event-driven systems, data pipelines, or message brokers (nice to have)
- Experience with rules engines, velocity checks, or adversarial defense systems (preferred)
- Hands-on experience with Go, Redis (Lua), ClickHouse, and Flink (preferred)
- Experience with Node.js and Go in production services (preferred)
Benefits:
- Remote-first organization
- Global, remote work environment
- Employee India commitment














