Senior Director · Software Engineering · Applied AI

Software organizations,
engineered to deliver.

I build engineering organizations that ship with speed, quality, and intent. Chris Rivera — 15 years turning ambiguous problems into scalable platforms, high-performing teams, and measurable outcomes.

Available for advisory & leadership roles
Chris Rivera

Chris Rivera · San Jose, CA

Building software teams
that actually ship.

I spent the first decade of my career as an individual contributor — deep in systems design, data pipelines, and distributed architecture. I know what good engineering looks like from the inside.

The second half of my career has been about multiplying that impact. I've built engineering organizations from scratch, modernized legacy platforms, and shipped products that changed how industries operate. That combination — technical depth plus organizational leadership — is what makes the difference between teams that talk about delivering and teams that do.

"The best engineering organizations aren't just technically excellent — they're aligned, intentional, and relentless about outcomes."

Outcomes, not activity.

Team growth

Scaled engineering org from 4 to 15+ engineers across platform, data, and product

0%

Revenue growth

Delivered in ARR growth in 24 months

0+

Years of experience

Building and shipping software across rail, logistics, and automotive industries

→ AI-driven engineering

Led enterprise AI adoption across 4 product lines — LLM-assisted triage, code review, and incident summarization — cutting mean-time-to-resolve by 40%.

→ Platform modernization

Architected migration from aging monolith to event-driven microservices on GCP. Zero customer-facing downtime across a 14-month transition.

→ Engineering culture

Built on-call culture, incident process, and career ladder from scratch. Voluntary attrition dropped to under 5% two years running.

AI that moves the business —
in domains that can't be wrong.

0 AI products shipped
0% Reduction in triage time
0 Model providers integrated
100% Calls traced in production

Architecture stack

Product Interface Chat / API / Embedded widgets
Orchestration LangChain · custom agent loops
Model Routing Tiered by cost, latency & task type
Context Layer RAG · vector store · memory
Tool Use Internal APIs · structured outputs
Observability Tracing · evals · cost tracking

Tiered model routing

Tier 1 — FastGPT-4o-mini · Haiku
Tier 2 — BalancedGPT-4o · Sonnet
Tier 3 — Powerfulo1 · Opus

MLOps governance

Prompt versioning
Eval framework
Cost attribution
Responsible AI policy
Retrieval Enterprise

RAG Pipelines

Production retrieval-augmented generation over proprietary data. Semantic search, re-ranking, and citation-grounded outputs.

< 800ms p95 retrieval latency
Agents Workflow

Autonomous Agents

Multi-step agent workflows with tool use, structured output, and human-in-the-loop checkpoints for high-stakes decisions.

4 products shipped with agent patterns
Governance MLOps

AI Governance

Prompt versioning, model evaluation frameworks, cost allocation, and responsible AI policies across the org.

100% model calls traced & evaluated

PostMine —
insights mined automatically.

A SaaS product I designed, built, and shipped solo. PostMine extracts structured insights from unstructured content — articles, transcripts, reports — using a retrieval-augmented pipeline I built from scratch.

  1. 01Connect any content source
  2. 02Automatic insight extraction via LLM pipeline
  3. 03Search, filter, and export structured results

Pipeline

01 Ingest content RSS · API · Upload
02 Chunk & embed OpenAI Embeddings
03 Store vectors pgvector · Supabase
04 Retrieve context Semantic search
05 Generate insights GPT-4o · structured output
06 Deliver to user REST API · Webhooks
AstroReactOpenAISupabasepgvectorStripeVercelTypeScript

Delivered for operators who can't afford downtime.


Rail · Transit · Logistics
CSX
Norfolk Southern
Union Pacific
CPKC
Amtrak
Genesee & Wyoming
MTA
Conrail
Alaska Railroad
Wheeling & Lake Erie
RJ Corman
Savage
Belt Railway of Chicago
Terminal RR Assn. of St. Louis
Port Terminal Railroad
Wichita Terminal Association
Cuyahoga Valley Scenic RR

Automotive Marketplaces & Auctions
ADESA
Carvana
CarMax
Cars.com
OVE
AuctionACCESS
Cox Automotive
Columbus Fair Auto Auction
Orlando Longwood Auto Auction
Indianapolis Car Exchange

Experience.

PS Technology

2023 — Present

Remote / San Jose, CA

Rail · Transit · Logistics

Director of Engineering

  • Led multiple cross-functional engineering pods across five product lines, coordinating onshore/offshore teams, QA, product, and customer stakeholders to deliver mission-critical rail software.
  • Defined AI architecture for regulated enterprise workflows, including a governed intelligence layer spanning LLM access, RAG-based retrieval, tool execution, safety, and auditability.
  • Architected conversational AI and agentic workflows over complex operational systems, with policy-engine guardrails, human escalation flows, and deterministic handling of compliance-critical decisions.
  • Drove engineering productivity by championing AI coding tools and agentic automation across pods, measurably accelerating team throughput and decision quality.
  • Built high-performing, inclusive engineering teams through clear expectations, consistent feedback, and a culture of psychological safety and ownership.
  • Owned full-stack platform modernization and delivery governance across multi-million-dollar customer programs, contributing to a 2× increase in recurring subscription revenue.

Integrated Auction Solutions

2016 — 2022

Austin, TX

Automotive Marketplaces

Director of Product & Engineering

  • Built real-time auction bidding engine supporting 1,000+ concurrent users per event
  • Led integration with Cox Automotive and ADESA platforms, expanding market reach 4×
  • Managed a team of 5 engineers across frontend, backend, and QA functions
  • Reduced critical bug escape rate by 70% through test automation and code review standards

Earlier Career

2008 — 2013

Various

Software Engineering

Software Engineer → Senior Engineer

  • Progressed through IC roles at logistics and SaaS companies, specializing in backend systems and data pipelines
  • Built foundational expertise in distributed systems, SQL query optimization, and REST API design

Education

Master of Science in Information Technology

Purdue Global · West Lafayette, IN

Bachelor of Science in Cloud Computing and Solutions

Purdue Global · West Lafayette, IN

Certifications

Google Cloud Professional Cloud Architect

Google Cloud Professional Data Engineer

Project Management Professional (PMP)

Technology

PythonTypeScriptGoSQLReactAstroNode.jsPostgreSQLBigQueryRedisKubernetesTerraformGCPKafkaAirflowdbtOpenAI APILangChain

Ready to build something
and actually ship it?