Nathan Bienvenu

Ten years across systems engineering, program management, and product ownership in aerospace, medical devices, and complex enterprise systems.

Open to Systems Engineer, Systems Engineering Manager, Technical Program Manager, Program Manager, and Engineering Manager roles. Different titles for the same work: own the program, align the organizations, ship on the date.
Current Role
Digital Systems Engineering Manager
Current Employer
BAE Systems, Inc.
Clearance
Active Top Secret (SCI Eligibility)
Service
United States Air Force Veteran
Education
BS CS In Progress MBA & BS in Aviation (Unmanned Systems) Completed
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Eight capabilities: Strategy, Requirements, Architecture, Governance, Risk, Stakeholders, Capital, Delivery.

Eight capabilities, one system. The roles are just different names for what emerges when they interact.

0Years shipping
high-stakes systems
0Portfolio roadmap
I built
0Assets tracked,
zero discrepancies
0QA pass rate,
seven years running

How I got here.

Ten years in three parts.

Then

Seven years in the Air Force as a Munitions Systems Engineer. The job was easy to describe and hard to do: know where every asset is, all the time, and never be wrong about it. That is where I learned to build systems instead of trusting people to remember, and where I first led a team.

Since

Northrop Grumman taught me formal systems engineering: model-based architecture, requirements traceability, and running cross-functional engineering reviews. GE Healthcare turned that into software systems engineering: data architecture, logging and observability, and continuous testing, built side by side with the engineers who owned the code and validated with the clinicians who used it.

Now

At BAE Systems I work on a flagship, multi-billion-dollar platform modernization program. I'm the client-side technical owner of a $60M+ integration, holding five partner orgs to one spec. When my manager left I picked up engineering management on top of that, so now I run the team, hire for it, and still do the technical work myself.

What I work with.

Six domains I work in day to day. Pick one.

0tracked
capabilities

Ten years, four organizations.

Everything below is something I can walk you through in detail. Nothing here is padded.

BAE Systems, Inc. Digital Systems Engineering Manager MAY 2025 — PRESENT

Program contextA flagship, multi-billion-dollar platform modernization program with executive-level visibility, delivered across cross-organizational industry and government partners.

  • Client-side technical owner of a $60M+ systems integration spanning five partner orgs. When the vendor deliverable was headed for sign-off with gaps the formal review wasn't built to catch, spun up an independent technical and financial review and stopped it before acceptance, heading off hundreds of hours of rework.
  • Unblocked secure software delivery across three partner sites: decomposed the use cases, modeled the full release pipeline (dev, test labs, configuration management, signed and encrypted packaging, independent verification), and brought the certification know-how the team was missing to close the dependency gap.
  • Turned competing requirements from 5 engineering teams into a single roadmap for a $12B portfolio. Promoted to senior lead within 60 days.
  • Designed and ran a standalone launch solo through a 14-day holiday freeze with no one else online: 100% uptime, zero delivery failures.
  • Picked up engineering management on an interim basis after my manager left, on top of program and systems engineering ownership. Run a mixed team of systems, software, and security engineers (reviews, growth plans, 1:1s) and hired 4 engineers for a new contract build-out, every offer accepted, onboarding them ahead of a planned contract ownership transition.
  • Cut 60% of process overhead by automating engineering workflows, delivered a six-month software tool in under three, and blocked $500K in spend on third-party tools that didn't fit the requirements.
GE Healthcare Lead Systems Engineer AUG 2024 — MAY 2025
  • Built the backend logic for an automated client-onboarding risk engine, cutting clinical verification from 5 days to 4 hours.
  • Owned the OEC Elite 3D needle trajectory feature end to end, from user need through FMEA, hazard analysis, and multi-day clinical V&V to release: zero post-release defects and adopted by physicians globally.
  • Reworked a queue management system's data structures alongside the software engineers, reviewing code and tuning system parameters to cut cycle time 40%.
  • Designed a unified logging and error-visibility architecture across the software stack, cutting mean time to resolution 35%.
  • Stood up continuous testing on agile test beds that caught 120+ defects before release, and wrote the architecture docs that cut integration onboarding 50%.
Northrop Grumman Systems Engineer APR 2023 — AUG 2024
  • Ran model-based systems engineering in Cameo and Teamcenter PLM on a multi-year platform modernization program, integrating 500+ high-consequence requirements with zero rework.
  • Led 20+ cross-functional engineering reviews as the compliance lead, getting internal teams, the customer, and vendors aligned on decisions.
  • Rebuilt a legacy compliance framework around automated rule updates, cutting decision cycle time 50% and removing manual developer work. BRAVO to Our Stars Award.
  • Ran a full FMEA that found and closed 15 critical single points of failure before release.
  • Made IBM DOORS and Cameo one source of truth: translated subsystem requirements both ways between standards and architecture with full model linkage, and served as primary compliance auditor across multiple subsystems.
U.S. Air Force Munitions Systems Engineer APR 2016 — APR 2023
  • Led an 18-person team running a $73M asset portfolio across 57 accounts, 300K+ annual deliveries, and 15,000 operational events, with a 100% QA pass rate for seven years.
  • Owned configuration management and reconciliation for 65 aircraft across 5 types in a $7.9B fleet.
  • Built an inventory validation system that verified 6.6M assets with zero tracking discrepancies.
  • Ran change management for 600+ schedule and inventory changes a week, keeping 5K production cycles on track.
  • Managed a core of 4 to 5 direct reports across two sites and four teams, wrote their performance reviews, and scaled to lead cross-team groups of 15 to 20 on large engineering and logistics operations. Mentored an airman outside my reporting line who was later selected for the U.S. Air Force Academy.
In Progress

BS, Computer Science (Postbacc)

Oregon State University · ABET-Accredited Program

36/60 credits · Spring 2026 Dean's List, College of Engineering

Degree

MBA, Business Administration

Southern New Hampshire University

ACBSP-Accredited Program

Degree

BS, Aviation / Aerospace (UAS)

Everglades University

SACSCOC-Accredited Institution

Clearance

Active Top Secret

U.S. Department of Defense · SCI eligibility · continuous evaluation

Certification

Part 107 sUAS Remote Pilot

Federal Aviation Administration · exp. May 2027

Four tools and workflows, built with AI.

Job search workflow / no code

Job Hunting Toolkit

A free alternative to paid resume services, built as two Claude Projects with nothing to install. Write your real accomplishments down once, and it screens postings against your own rules, builds a tailored resume and cover letter, then turns each interview into a live prep card. It can only use what you actually wrote, so nothing falls apart on a follow-up question.

Claude ProjectsSystem prompt design Zero installNo fabrication
prep_card.html · round 2
"Walk me through a contested requirement."likely questionQ
BAE · $60M+ contested integrationyour record, cited✓
"How do you handle regulatory constraints?"likely questionQ
GE Healthcare · unified logging architectureyour record, cited✓
every story traced to your data bank · nothing invented
AI Tutor / python

Figured

A learning tool that refuses to give you the answer. Ask it anything and it asks you a better question back, one at a time, until you get there yourself. Built on the idea that being handed an answer teaches you nothing, while being walked to one teaches you the method. Python, Claude API and Streamlit, zero to production in 72 hours.

PythonClaude API StreamlitPrompt design
app.py · socratic session
What happens when you divide by zero?
What is dividing actually asking? 10 ÷ 2 asks how many 2s fit inside 10.
So how many 0s fit in 10... none? Or infinite?
You just found the problem yourself. Both can't be true at once.
answer given: never · questions asked: 4
Research agent / cli

Web Scraper Agent

Answer four questions about what you are looking for and why. It runs two separate passes, one across published sources and one across first-person forum threads, then scores every result against your stated goal and discards anything short of a perfect match. A typical run keeps three results out of thirty. You get a sourced report, not a pile of links.

PythonClaude API Web search toolTournament scoring
web_scraper_agent.py · scoring pass
institutional / policy brief5/5
institutional / research paper5/5
aggregator listicle3/5
social / first-person thread5/5
news piece quoting a user1/5
28 candidates reviewed · 3 survived · report saved
Job search / cli

Job Matcher

Forked from the research agent. It condenses years of real accomplishments into a cached profile once, then scores live listings against that evidence instead of keywords, so a posting stuffed with the right buzzwords still fails if the record does not back it up. Pay estimates only run on listings that already cleared the bar, which keeps the API bill honest.

PythonClaude API Two-stage pipelineFit scoring
job_matcher.py · fit scan
Senior TPM, Platform Infrastructurebig tech92%
Systems Engineer III, Ground Systemsspace sector87%
AI Product Managercommercial74%
Engineering Manager, Hardware Systemsmedtech61%
scored on evidence, not keyword overlap