Fermat designs, deploys, and operates production systems for growing SMBs and mid-market teams — with human oversight, not chatbot demos. The working session decides whether that is an agent in your tools, or the CTO seat.
Same operator. Different seat. Pick the path that matches the outcome you need.
For operators who need production agents, not another tool to manage.
Fermat designs, deploys, and operates research, operations, sales follow-up, and internal coordination agents inside the tools you already use.
For companies that need the seat, not a full-time hire.
Senior technology leadership for architecture, HIPAA-aware platforms, cloud, and agent-ready systems — strategy, architecture, and delivery in one owner.
Most agent projects stop at a prototype. Most fractional CTO retainers stop at advice. Fermat stays after deployment.
Find the high-cost coordination work — or the CTO-shaped gap — and define success in hours, accuracy, and risk.
Define the agent’s tasks or the platform architecture, plus tools, permissions, and the human checkpoint.
Build against your real tools, with logging, evals, and a controlled roll-out to the team.
Monitor output, review exceptions, and stay in the seat as trust and evidence grow.
Two engagement families. One high-signal outcome each; the rest of the verified numbers sit one click behind.
A healthcare startup needed enterprise-grade technology leadership. Fermat sat as fractional CTO and built a HIPAA-compliant platform from the ground up.
Senior analysts were losing hours daily to earnings-call research. Fermat built a multi-agent workflow that reads filings, transcripts, and news, then delivers an analyst-ready synthesis.
Founder & Principal Consultant
Production research, ops, sales follow-up, and coordination agents
Architecture, cloud, and agent-ready systems without a full-time hire
HIPAA-aware platforms and fractional CTO leadership
JD Singh is Founder & Principal Consultant, with 10+ years building and guiding teams across healthcare, insurance, cybersecurity, financial services, and enterprise SaaS.
Fermat exists because most AI work stops at the demo. JD designs the architecture, builds the system, and stays accountable for whether it runs in production — the same discipline behind the healthcare platform and the multi-agent earnings system on this site.
A checklist of the easiest automations to set up, with tool recommendations and estimated time savings.
A 24-question self-assessment to understand where automation and agents would create the most immediate impact.
We map one operational bottleneck — or whether a fractional / interim CTO seat is the better fit. You leave with a clearer problem, a recommended path, and no obligation. Same session for both offers; email [email protected] if you prefer to write first.
Managed agent services means Fermat designs, deploys, and operates production agents — research, ops, sales follow-up, internal coordination — with evals, permissions, and human handoff. Fractional / interim CTO is senior technology leadership for architecture, HIPAA-aware platforms, cloud, and agent-ready systems when you need the seat filled without a full-time hire. Same operator. Different engagement.
Tools still require someone to configure, monitor, and improve them. Fermat is the operator: we design the system, run the agents — or sit in the CTO seat — and stay accountable for whether the work actually gets done.
A tightly scoped first agent can move from discovery to working production in a few weeks. Broader systems take longer because we map the work and permissions first. Fractional CTO timelines depend on the platform — the healthcare engagement went from kickoff to launch in 4 months.
No. We work inside the tools you already use — email, Slack, CRMs, spreadsheets, billing systems — and connect them where needed. The goal is to reduce coordination work, not add another login.
Fermat is. Every agent runs with permissions, evals, logging, and a defined human handoff. If the output drifts, we find it in review and correct it — not months later in an audit.
We design around least privilege, encryption in transit and at rest, and compliance needs such as HIPAA-aware workflows for healthcare clients. Agents only see the systems and fields they need for the job.
Same session for both offers. We map one operational bottleneck, or whether a fractional / interim CTO seat is the better fit. No sales pressure.