Automate costly work. Connect systems. Own what makes your business different.

Whisker Tech helps established operational businesses improve important processes that are stuck between manual work, disconnected systems, and off-the-shelf software that does not fully fit.

Buy the commodity. Build the differentiator. Mature software should handle standard capabilities. Custom software belongs where company-specific rules, knowledge, data, or customer experience create enough value to justify ownership.

Request a fit call Email David directly

A strong fit when an important part of the business no longer works at its current scale.

Employees re-enter the same information, reconcile conflicting records, or spend hours moving work between systems.
A spreadsheet or homegrown process has become business-critical, but it is difficult to control, transfer, and improve.
Customer, vendor, or operating information is scattered, so people cannot see the status of work without asking around.
Valuable operating rules and institutional knowledge live in inboxes, documents, and the memory of a few experienced employees.

Best suited to established B2B businesses without internal software developers. Whisker Tech works first with owners, COOs and other operations leaders, or IT and business-systems managers in the Charlotte area, and accepts strong-fit remote work across the United States. Current pricing starts with a $15,000 delivery minimum; delivery phases are currently scoped from $25,000–$75,000.

Tell me what is slowing the business down

Founder-built work

Groundwave is a live product I built and operate. It shows how I turn a fragmented real-world operation into working software and remain responsible for it after launch.

Live product · Built and operated by Whisker Tech’s founder

Groundwave

One system for public discovery and the recurring work of amateur-radio clubs.

Amateur-radio clubs often manage members, dues, events, messages, documents, and public information in separate places. Groundwave brings that work into a shared workspace while also helping the public find clubs and repeaters. I designed, built, deployed, and continue to operate the product through Whisker Tech.

Groundwave keeps nationwide FCC records current without overwriting information owned by users and clubs. It reflects the same operating principles I bring to client work: automate repeatable work, connect information people need to act, and retain the company-specific knowledge that makes the process work.

My responsibility: Product, user experience, software, and operations
Work supported: Public discovery and permission-based club administration
Information managed: Updates, reconciliation, and full reconstruction of imported records
Business operation: Subscriptions, deployment, and ongoing support

Read the Groundwave case study Visit groundwavehq.com

Additional technical background

Public code and private research tools.

Ingot

A public data-storage project for Go applications that shows how I approach recovery, operating limits, and failure handling.

Review the technical note View the public source

AlphaFoundry

A quantitative research workspace I built and operate for personal use. Market-data licenses prevent public access, so it is included only as background.

Read the project note

Automate. Connect. Differentiate.

The goal is not more software. It is a better operation, using custom engineering only where the economic or strategic value supports the cost of owning and maintaining it.

Automate

Reduce costly repetitive work such as rekeying data, preparing reports, routing documents, tracking approvals, and coordinating routine handoffs. Keep people focused on the work that requires judgment.

Connect

Connect ERP, CRM, accounting, vendor, and operational systems that currently depend on employees to move information by hand. Preserve the systems that already do their jobs well.

Differentiate

Turn valuable company-specific rules, processes, expertise, and data into software the company owns. Make institutional knowledge repeatable and transferable without forcing a differentiating operation into generic software.

Assessments are currently $5,000–$10,000. Delivery has a $15,000 minimum, with defined phases currently scoped from $25,000–$75,000.

Discuss whether the problem fits

A decision before a build

Your core systems do not have to define everything about how your business works.

Your ERP, CRM, accounting platform, and other mature systems should handle the standard parts of the business. Whisker Tech does not reflexively replace functioning systems or rebuild capabilities that established products already support well.

When an important workflow does not fit, the right answer might be to:

Configure the existing system
Buy a product or module
Integrate existing systems
Change the process
Automate part of the workflow
Build company-owned software

Whisker Tech will not recommend custom software simply because it can build it.

Custom software carries implementation, operation, and maintenance costs. A focused assessment determines which option makes sense and whether any company-specific part of the workflow creates enough economic or strategic value to own.

Current focus area

Manufacturing

Software around the workflows your ERP does not need to own.

Manufacturing is Whisker Tech’s primary current market focus, not the boundary of the practice. The work starts by understanding ERP-adjacent planning, reporting, exception handling, and coordination, then deciding whether the answer is configuration, commercial software, integration, process change, automation, or a focused custom system.

Explore software for manufacturing operations

Working relationship

Your company stays informed and in control.

One accountable person: The person learning the process and making recommendations also builds the system. There is no sales handoff and no subcontracting.
Clear capacity: I limit parallel delivery commitments and confirm current availability before a fit conversation.
Visible progress: You see working software, open decisions, and risks at agreed checkpoints throughout the engagement.
Company control: Your company controls its source code, infrastructure, and vendor accounts where practical. Deployment and handoff are documented.
Knowledge retained: Operating instructions and important decisions stay current so the system does not become another undocumented dependency.
After launch: Delivery includes 30 days to correct defects in the agreed work, plus reasonable launch support. Longer-term support can be arranged separately.

Review an illustrative delivery plan

I’m David Rinaldo.

Before starting Whisker Tech, I spent seven years in software engineering and engineering leadership roles. Much of that work involved learning how a company operated, identifying the workflows and knowledge that made it distinct, and turning them into dependable software. I left corporate engineering in 2024 to do that work directly with businesses whose operations need better systems.

Red Ventures 3.5 years: Built internal tools that modeled company-specific call-center workflows. I worked with stakeholders to map how the operation functioned, represent its rules and handoffs, and encode those flows in software.
Gannett / USA Today 2 years: Built and led engineering work on content systems that captured the company-specific processes behind large-scale publishing and content operations.
RVO Health 1.5 years: Led engineering on the data platform team responsible for large-scale data ingestion and machine-learning systems specific to how the company operated, analyzed information, and supported decisions.

That experience is directly relevant to operational software work: understand the real process with the people responsible for it, separate standard capabilities from company-specific behavior, and build a system that makes valuable knowledge reliable and usable. Groundwave shows how I approach the same responsibility in a product of my own.

Clients deal directly with me, and I do not use subcontractors. I can work with an operations leader who has no internal developer, as well as an IT or business-systems manager who needs a reliable delivery partner.

View my public code on GitHub See my KZ4LA record on Groundwave

Charlotte first · Strong-fit remote US work

What is slowing the business down?

Describe the operation that is taking too much time, losing information, or depending on fragile workarounds. I will reply within one business day with an initial view on fit, current availability, and any focused follow-up question. A first conversation may end with a software option, an existing product to consider, a process recommendation, or no further work.

Email the operating problem

Or write directly to contact@whiskertech.dev.

Current engagement ranges

Assessment: $5,000–$10,000 when the right solution or scope is unclear
Delivery minimum: $15,000
Current delivery range: $25,000–$75,000 for a defined phase

These ranges are a starting point. Final pricing depends on the work. If the problem appears to fit but you are unsure about budget, say so in your note.

What happens next

I review the operating problem and confirm whether a conversation is worthwhile.
If it appears to fit, we have a no-cost 30-minute call about the current process and business impact.
I recommend the most sensible next step. That may be no build, a standalone assessment, or a defined delivery proposal.

Vendor requirements

If your company has vendor, insurance, NDA, or security-review requirements, raise them during the first conversation so I can confirm what the engagement requires.

Fit conversation

Describe the operating problem

Only three fields required

01Name

02Email

03Operating problem

What is happening today, who it affects, and what the business needs to do more reliably.

Add useful business context Optional

Share what you already know. These details help me give you a more useful first response.

04Company

05Your role

06Current process and systems

How the work moves today, including spreadsheets, software, manual steps, and handoffs. Do not include confidential details.

07Why now and timing

08Budget context