Cloud Architecture
Design a cloud footprint you can afford, operate, and leave if you need to.
AWS, Azure, GCP, hybrid, multi-cloud, infrastructure as code, landing zones, observability, portability planning.
Founded in 2026. Built on decades of experience.
Engineering that works so well your users never notice.
Independent consulting for cloud, AI, security, resilience, performance, and software systems — and our own line of software products.
We guide first and build second. Every recommendation is backed by evidence you can inspect — not hype, vendor quotas, or partner loyalty.
Experience behind the company
The company was founded in 2026. The record behind it belongs to its founder, earned in prior roles — not presented as CoreFeld client work.
- 24 years Building and operating production systems, from public-facing government platforms to modern cloud and AI workloads.
- $4M → $2.5M Annual cloud spend cut by $1.5M for a federal health agency, in a prior role, through automated cost-optimization tooling and architecture change.
- AWS certified Three active certifications — Security – Specialty, DevOps Engineer – Professional, Developer – Associate — and continuous AWS certification since 2018.
- A decade inside CMS Four named CMS programs — Office of Communications, QPP, MACPRO, and MDCT — as agency staff and as a vendor, plus the Social Security Administration and state Medicaid platforms.
Guide first. Build second.
Start with the problem, not the platform.
Most expensive technical mistakes are decisions, not code. CoreFeld helps organizations make a clear, defensible call before they commit to a migration, rewrite, AI system, cloud provider, or architecture path — and then builds it when building is the right answer.
Services
Senior engineering across the hard parts of modern systems.
AI Engineering
Find out whether AI earns its place in your workflow — then build the part that does.
AI fit assessment, custom AI applications, enterprise assistants, RAG, workflow automation, model evaluation, governance.
Security
Make the architecture itself the control, not a layer of tools bolted on afterward.
Secure architecture, threat modeling, DevSecOps, repository protection, identity, secrets, encryption, incident readiness.
Disaster Recovery
Know what you can recover, how fast, and what happens the day you have to prove it.
Business continuity, restore testing, ransomware recovery, multi-region planning, immutable backups, runbooks, RTO and RPO.
Platform Engineering
Give delivery teams a safe default path so shipping stops being an act of courage.
CI/CD, developer platforms, golden paths, deployment safety, policy as code, secure build pipelines, release automation.
Software Engineering
Build and modernize systems your team can still understand a year from now.
Custom applications, APIs, integrations, distributed systems, modernization, architecture reviews, project rescue.
Performance
Replace opinions about what is slow with measurements of what is slow.
Profiling, load testing, benchmarking, latency, throughput, capacity planning, database tuning, cost-performance decisions.
Cost Optimization
Cut the bill without cutting the reliability you are paying for.
Cloud cost assessment, rightsizing, licensing, data transfer, storage, TCO, build-versus-buy, expensive-default removal.
Technical Leadership
Senior architectural judgment on the org chart without a full-time executive hire.
Fractional CTO, chief architect, technical strategy, due diligence, vendor evaluation, architecture governance, mentoring.
Products
We build our own software, not only our clients’.
Everything below is CoreFeld’s own work, built to the standards we hold client work to: accessible markup, evidence behind the design, and no dependency a customer cannot leave.
CoreFeld Docket
Board agenda and meeting minutes software for public bodies.
Public portal for meetings, agendas, packets and items with full-text search; staff workflow from item intake through agenda building to adopted minutes; open data as JSON, iCalendar and RSS. Server-rendered for WCAG 2.1 AA, with Microsoft Entra ID single sign-on. Live demonstration at docket.corefeld.com.
See the productCoreFeld Comms
Multi-tenant mass email and digital communications for large institutions.
Built for organizations sending tens of millions of messages a year: per-department billing, delegated administration, Entra ID single sign-on, WCAG 2.1 AA, and deployment inside the customer’s own environment with source delivered.
See the productCoreFeld Capture
Lecture capture for universities.
Scheduled and ad-hoc recording, multi-source capture, Canvas-native publishing, captions and transcripts, accessible playback, and viewership analytics.
See the productCoreFeld Visit
Membership, giving, ticketing and point of sale for visitor attractions.
One constituent record behind admissions, timed entry, guided tours, group bookings, class registration, digital membership cards, donation pages, an online store, and reporting across all of it.
See the productEgress Total Control
Parental controls for selected devices, without replacing a family’s Wi-Fi.
A small wired appliance that joins the existing home network, applies website and service rules to the devices a parent protects, and leaves other devices alone. Parents choose whether newly seen devices start protected or unrestricted. It uses no VPN, never reports the network as secured while another DHCP server is active, and alerts the parent if one appears. Target retail price: under $200.
See the productSeekum
A search engine of hand-checked sites, with an edition per country in eleven languages.
Free, with no ads, no tracking, and no filler: every result comes from a catalogue a person checked, and a question the catalogue cannot answer says so instead of guessing. One edition per country — from seekum.com to seekum.de, seekum.mx and seekum.in — each in its own language with its own national catalogue.
See the productFree Smartphone Games
Fifteen classic casual games in one app, for iOS and Android.
Free, with no ads, no in-app purchases, no accounts, and no tracking. The apps request no network access at all, so every game runs in airplane mode. Native Swift and Kotlin on each platform, no cross-platform runtime, built for the App Store and Google Play.
See the productCommunity project
Rochester Skyways
CoreFeld built a free public navigation service for our hometown’s downtown skyways, subways, streets, and campus destinations.
The live beta demonstrates the full job: turning a changing physical network into structured route data, maintaining it, and delivering clear indoor and outdoor directions on the web.
We can build the same kind of wayfinding system for another city, campus, hospital district, civic center, or large venue.
Approach
Every major recommendation should survive measurement.
01
Understand
Clarify the business problem, users, constraints, risks, and success criteria.
02
Measure
Use benchmarks, cost models, threat models, failure testing, and operational review.
03
Decide
Compare realistic paths, including simpler options and doing nothing when that is best.
04
Build
Implement systems that are documented, observable, secure, testable, and operable.
Evidence-based engineering
The right technology, not the loudest technology.
We do not recommend AI when conventional software, automation, process change, or no software is the better answer.
We do not push AWS, Azure, GCP, on-premises, hybrid, or multi-cloud designs without a reason the client can inspect.
We optimize total cost, not merely the cloud bill.
Where we stand
The better you know a provider, the more honest you have to be about it.
AWS
We know AWS deeply, and that depth is exactly why we are candid about where it falls short. No provider earns deference here for its size. We build on AWS, and build it well, when it is the best option for the problem or when it is what your organization requires.
Azure
We know Azure deeply, and we hold it to exactly the same standard. Depth earns candor, not deference. We build on Azure, and build it well, when it fits the problem or when it is what your organization requires.
Cloudflare & GCP
We know them both and hold them to the same standard. So far they have given us little to be candid about. That may change as depth grows — and if it does, you will hear it from us first.
Depth produces candor. Anyone who knows a platform well and thinks critically ends up with a clear-eyed view of where it falls short, and we hold one for every provider we work in. We walk through the parts that touch your architecture during the engagement, where they can actually be acted on, rather than litigating them on a marketing page. Being candid about a provider does not make it useless — it is what makes our recommendation of it mean something.
We are not anyone's partner. No partner tiers, no resale margins, no agreements that require us to praise a vendor's roadmap. When a provider oversells a capability or a default quietly costs you money, we say so plainly — and we bring the strategies that keep your architecture free to move: exit paths, portability planning, egress-cost math, and expensive-default removal.
That independence is what you actually need in a consultancy.
About CoreFeld
You get engineers, not a sales team.
CoreFeld is an engineering firm based in Rochester, Minnesota, founded in 2026 by Jonathan “Jon” Holman — 24 years of professional IT experience across federal health systems, regulated public-sector platforms, enterprise cloud practices, and AI product engineering.
Our team brings decades of hands-on experience across several generations of technology. That span is what makes it possible to tell durable innovation from hype, and we add the depth an engagement actually calls for rather than headcount to bill against.
Whoever does the analysis is who you talk to. Work is not handed to a junior team after the sale, and everyone who touches your system is named to you before they start.
Available now for corp-to-corp subcontracting with primes and boutiques delivering federal health work, and for direct engagements. Resume, rate, and availability on request — ask and you get them the same day.
We do not invent client lists, staff biographies, offices, or case studies. Every number on this page is founder-attributed and earned in a prior role, and it is labeled that way.
Contact
Bring the hard technical problem.
We will help decide what should be built, what should be changed, and what should be left alone.
- Replies come from a person, usually within one business day.
- The first conversation is a scoping call, not a sales call, and it is free.
- Recruiters and primes: say so in a line and you get the resume, rate, and availability the same day.