Beacon Software
SaaS
MemberofTechnicalStaff
Neural analysis suggests this role is
optimal for Senior candidates.
“Member of Technical Staff at Beacon Software. Skills: Systems engineering, Data infrastructure, Multi-tenant isolation, Workflow runtime. Own a piece of core stack end-to-end. Design systems”
Industry & Context.
Root cause analysis
What They're Looking For.
Must Have
Senior engineering depth, Staff or principal-equivalent experience, Built and operated systems, Write clean, idiomatic code, Work in Python, Go, Rust, or TypeScript, Opinion on service structure, Defend opinions without raising voice, Distributed systems intuition, Lived through production incidents
Nice to Have
Prior Staff or Principal Engineer experience, Experience with Iceberg, Polaris, Snowflake, or Databricks at scale, Multi-tenant SaaS or platform infrastructure background, Production experience with LLM-driven systems, Background in offline RL, contextual bandits, or sequential decision-making, Open-source contributions
What You'll Do.
Own a piece of core stack end-to-end
Define long-term technical direction
Build cross-portco data lake
Build ingestion pipeline
Build canonical data model
Build catalog and semantic layer
Build backend services
Design APIs that age well
Establish per-portco boundaries
Establish cross-cloud connectivity
Establish regional residency
Run operational workflows
Design typed action surfaces
Implement rollback paths
Implement human-in-the-loop approval gates
Implement audit trails
Treat workflows as primitives
Build observability harness
Implement structured logs
Build replay infrastructure
Build regression suites
Enable A-test changes
Design autonomy tiers
Design per-action-class blast-radius caps
Design audit surfaces
How You'll Work.
Team & Collaboration
Cross-portfolio teams; Other engineers; FDEs; Ops engineers
Full Job Description
ABOUT BEACON SOFTWARE Beacon http://www.beaconsoftware.com is acquiring and operating a portfolio of vertical SaaS companies. Most private equity firms scale by adding people. We are building Beacon to scale by adding software. The thesis is simple. Portfolio operations, value creation, and deal sourcing are bottlenecked by human attention, and the right software platform can lift that ceiling by an order of magnitude. We are building that platform. A cross-portfolio datalake on open table formats, with a feature store on top that makes the data usable by both people and software. An action layer that runs workflows across three domains: how we run the portfolio, how we grow the portfolio, and how we acquire into it. A feedback loop underneath that captures every action and outcome with stable identifiers. By the next phase of buildout we will have 100+ portfolio companies running on this platform. That is a problem set with serious data scale, real multi-tenant isolation requirements, and very few precedents to copy from. Beacon has raised $550M+ from investors including General Catalyst, Lightspeed, D1 Capital, CPMG, and the family offices of the founders of Stripe, DoorDash, and Ramp. ABOUT THE ROLE Members of Technical Staff (MTS) are the senior engineers who build the platform that everything else at Beacon runs on. You will own a piece of the core stack end-to-end: design, implementation, operations, and the long-term technical direction of that area. This is a Staff Engineer role in everything but name. We run flat. The work is systems engineering at its core. Multi-tenant data infrastructure across very different portcos. Event-driven pipelines that have to be correct under partial failure. Service architectures that have to stay simple as the product surface grows. APIs and SDKs that other engineers — including FDEs out in the field — will build on every day. ML and agentic systems are part of the stack. They sit on top of a foundation that has to be soli
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