Senior Platform Architect & Tech Lead

Archer; San Jose (CA); On-site; USD 219,000 - 265,000; Full time

Job summary

Archer is seeking a deeply technical Principal Platform Architect and Tech Lead to serve as the technical authority for the Enterprise OS team in San Jose. This role defines the platform, mentors engineers, and drives the roadmap for secure, scalable enterprise services built atop SAP S/4HANA, Workday, Google Workspace, and Okta.

You will own canonical data models, platform SDKs, and core services, lead SDLC across teams, and shape governance for AI-assisted workflows while ensuring

Qualifications

• 15+ years building distributed systems, backend platforms, or internal developer platforms.
• Strong hands-on backend engineering experience (Go preferred).
• Deep expertise in relational databases, ideally PostgreSQL (schema design, indexing, performance tuning, migrations).
• Experience designing canonical data models across heterogeneous systems.
• Experience defining durable API contracts and operating them over time (versioning, compatibility, reliability).
• Experience implementing secure authorization patterns (RBAC and fine-grained access controls).
• Experience designing event-driven systems and reliability patterns (idempotency, retries, consistency).
• Cloud-native experience (AWS/GCP preferred) and comfort working across infrastructure/application boundaries.
• Demonstrated ability to ship production systems used by other teams.

Responsibilities

• Technical Leadership: Act as the Tech Lead for the platform team. Drive technical decisions, manage architectural trade-offs, and ensure the team adheres to high engineering standards through rigorous design and code reviews.
• Platform Design Ownership: Define the canonical entity model, design the connector interface for typed Go services across source systems, and own the Platform SDK used by application teams.
• Core Service Development: Lead the development of services enabling policy-controlled access, traceability, and automation, including AI-assisted workflows with robust guardrails.
• Execution & Validation: Translate the platform vision into actionable engineering milestones. Your designs will be rapidly validated through production applications.
• Define canonical entity models that normalize data across multiple enterprise systems (e.g., finance, supply chain, HR).
• Demonstrated ability to lead engineering teams through the full SDLC of complex platform products.
• Design and implement core backend services (Go preferred, Java experience also valued).
• Define strongly typed API contracts and versioning standards using protobuf, with the Platform SDK as the single interface applications build against.
• Design a portable data architecture using PostgreSQL, including schema evolution and performance strategy.
• Establish scalable connector/integration patterns for ingesting, enriching, and serving enterprise entities.
• Build a policy-based authorization approach (RBAC with attribute-aware controls) with entity-level access control and data masking where needed.
• Define event propagation patterns (e.g., outbox pattern) and a clear path to CDC/event streaming as the platform matures.
• Establish auditability, traceability, and observability standards for platform services.
• Enable AI-assisted workflows safely (e.g., classification/summarization/suggested actions) with strict access boundaries and full audit logs.
• Mentor engineers and collaborate with application teams to validate the platform through real production use cases.

Skills

Distributed systems

Technical leadership

Platform design

API design

Security RBAC

SDKs

Go backend

Data modeling

Cloud architecture

Leadership

Tools

Go

PostgreSQL

AWS

GCP

Protobuf

Job description

Archer is seeking a deeply technical Principal Platform Architect and Tech Lead to serve as the technical authority for the Enterprise OS team in San Jose. This role defines the platform, mentors engineers, and drives the roadmap for secure, scalable enterprise services built atop SAP S/4HANA, Workday, Google Workspace, and Okta.

You will own canonical data models, platform SDKs, and core services, lead SDLC across teams, and shape governance for AI-assisted workflows while ensuring