TDD Practice Team 8 agents · Pre-LOI to IC-ready · 72h turnaround
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Now Hiring · Joyn Practice · Technology Due Diligence
AI Practice Team

Technology due
diligence. At the
speed of a deal.

Eight AI colleagues — each owning a distinct domain — running in parallel from the moment you submit a brief. Pre-LOI screening to IC-ready output in 72 hours. Your partners review. Your clients see your firm's work, not Joyn's.

8 domain agents
72h turnaround
IC-ready output
Partner-reviewed
Your firm's brand
8
Specialist AI agents running in parallel
5
Assessment domains covered per engagement
72h
Brief to IC-ready findings
The team
Alex Morgan Jordan Riley Casey Taylor Drew Sam
Built by PE practitioners. Every agent owns one domain and produces structured findings that Sam synthesises into a single IC-ready report.
Live Intelligence

Your findings arrive
with market context
already built in.

800+
Companies continuously benchmarked
24/7
Public signal scanning across GitHub and open sources
5
Domains tracked per company in the benchmark universe
Live
Pre-existing context available from day one of your engagement
When you brief this team on a company already in our benchmark universe, your findings include percentile rankings against comparable companies — automatically.
The Team

Eight specialists.
One coordinated output.

Each agent owns exactly one domain. They run in parallel from the moment your brief is submitted — no waiting for one to finish before the next begins. Sam receives all six domain outputs and produces the IC-ready synthesis.

01 · Intake & Scoping
Alex
Engagement Director
Processes your brief, defines the engagement scope, identifies focus areas and risk hypotheses, and coordinates the parallel analysis across the other seven agents. Every engagement starts and is structured by Alex.
Brief parsingScope definitionRisk hypothesisTeam coordination
02 · Technology Stack
Morgan
Stack Intelligence
Assesses the technology stack against current adoption curves, lifecycle risk, and sector-specific benchmarks. Flags stacks with high vendor dependency, approaching end-of-life, or poor talent availability relative to the company's hiring stage.
Stack mappingLifecycle riskTalent availabilityVendor dependency
03 · Code & Repository
Jordan
Repository Health
Analyses code quality, complexity trends, test coverage, dependency age, commit velocity, and bus factor. When repository access is provided, Jordan performs direct analysis. For public repositories, Jordan draws on the continuous benchmark dataset.
ComplexityTest coverageBus factorDependency ageCommit velocity
04 · Security Posture
Riley
Security Analysis
Evaluates security posture across dependency vulnerabilities, exposed credentials, authentication patterns, CI/CD security, and compliance flags. Identifies findings that carry deal risk versus operational remediation cost.
CVE exposureCredential hygieneAuth patternsCompliance flags
05 · Engineering Team
Casey
Developer Health
Assesses engineering team composition, tenure distribution, key-person dependency, hiring velocity, departure signals, and bench strength relative to the company's growth stage and post-acquisition integration requirements.
Key-person riskTenure spreadHiring velocityBench strength
06 · SDLC & Compliance
Taylor
Process & Validation
Evaluates software development lifecycle maturity — release cadence, QA processes, documentation standards, change management, and for regulated industries, GxP validation compliance and audit trail completeness.
SDLC maturityRelease cadenceGxP validationDocumentation
07 · Infrastructure
Drew
Infrastructure & Cost
Analyses infrastructure architecture, cloud cost efficiency, scalability headroom, and vendor concentration risk. Benchmarks infrastructure cost-per-unit-of-output against comparable companies at the same stage and revenue profile.
Cloud efficiencyScale headroomVendor lock-inCost benchmarks
08 · Synthesis & Output
Sam
IC-Ready Intelligence
Receives structured findings from all six domain agents. Synthesises into a single coherent assessment — prioritised by deal risk, framed in IC committee language, with clear implications and recommended due diligence actions. Sam produces the report your partners review and the output your clients receive. Every finding is traceable back to the agent that produced it.
Sam receives
Morgan Stack risk assessment
Jordan Repository health score
Riley Security finding severity
Casey Team health indicators
Taylor SDLC maturity rating
Drew Infrastructure cost model
→ IC-ready report
Assessment Domains

Five domains. Every
engagement. Zero gaps.

Every TDD engagement covers all five domains simultaneously. No domain is skipped because one agent is waiting for another. The parallel architecture is what makes 72-hour turnaround possible.

1
Code & Repository Health
Jordan · Morgan
The structural integrity of the software asset — how maintainable, how testable, how dependent on individuals, and how aligned to the claimed development stage.
Cyclomatic complexity trends
Test coverage vs. sector benchmark
Bus factor and key-person risk
Dependency age distribution
Commit velocity and recency
2
Security Posture
Riley
The security risk profile — findings that affect deal valuation versus findings that represent post-acquisition operational remediation cost. Not every vulnerability is a deal risk. Riley makes the distinction.
CVE exposure and severity
Credential and secrets hygiene
Authentication architecture
Compliance posture (SOC2, HIPAA, GxP)
CI/CD pipeline security
3
SDLC & Process Maturity
Taylor
Whether the engineering team operates with the discipline and repeatability that supports scale — or whether what looks like a mature product is held together by tribal knowledge and heroics.
Release cadence and stability
QA process depth
Change management maturity
GxP validation completeness
Documentation coverage
4
Engineering Team Health
Casey
The human capital risk — concentration, continuity, capability relative to the post-acquisition integration roadmap, and the realistic retention risk given current market conditions for the relevant stack.
Key-person concentration
Tenure and retention signals
Hiring velocity vs. growth plan
Bench strength assessment
Integration capability fit
5
Infrastructure & Cost
Drew
Whether the infrastructure can support the projected growth trajectory and at what cost — including hidden liabilities in vendor commitments, architecture decisions that will require re-platforming, and scalability ceilings relative to the investment thesis.
Cloud cost efficiency percentile
Scale headroom vs. thesis
Vendor concentration and lock-in
Re-platforming liability estimate
Architecture scalability ceiling
Sample Output

What IC-ready findings
look like from this team.

The following are representative findings drawn from a full TDD engagement simulation. These illustrate the structure, language, and IC framing your partners would review before approving the final report.

Engagement typePre-LOI Screening
Company profileSeries C · Healthcare SaaS
Domains assessedAll five
Turnaround61 hours
Findings3 critical · 6 advisory · 4 positive
Jordan · Repository Health Critical
Bus Factor 2 — Core Billing Module
The billing and revenue recognition module — which processes 100% of customer transactions — has meaningful commit history from only two engineers over 36 months. Both are tenured above the company median and show recent external conference activity, a signal pattern associated with elevated departure risk. No documented succession or knowledge transfer exists in the SDLC record.
IC implication: Retention commitments for both engineers should be a closing condition. Escrow or earnout structure recommended to cover 18-month retention window. Remediation cost if either departs pre-close: estimated 4–6 months of re-documentation and knowledge transfer.
Riley · Security Critical
HIPAA Audit Trail Gaps — Patient Data Module
Taylor's SDLC review identified incomplete audit logging in the patient data access layer. Riley's cross-domain analysis confirms this creates a HIPAA compliance exposure — specifically, access events are logged at the session level rather than the record level. The gap has existed for at least 14 months based on commit history.
IC implication: This is a pre-close remediation requirement, not a post-acquisition item. Estimated 6–8 weeks of engineering time to remediate. Deal should not close without independent compliance attestation on this specific control. Price adjustment or escrow coverage warranted.
Drew · Infrastructure Advisory
Cloud Cost Efficiency — 34th Percentile for Stage
Infrastructure cost per active user sits at the 34th percentile for Series C healthcare SaaS companies in our benchmark universe. The primary driver is over-provisioned database instances that were sized for a 2021 growth projection that did not materialise. No evidence of active cost optimisation in the past 18 months.
IC implication: 25–35% infrastructure cost reduction available within 90 days post-acquisition without architectural change. Should be captured in the 100-day plan and reflected in the operating model. Not a deal risk — an upside lever.
Morgan · Stack Intelligence Positive
Technology Stack — Strong Talent Availability Signal
The core stack is well-positioned relative to current engineering talent availability. Primary language and framework choices align with high hiring velocity in the target geography. Benchmarked against 847 comparable companies, this stack ranks in the 78th percentile for post-acquisition engineering team scalability.
IC implication: Technology stack does not constrain the growth thesis. Talent acquisition for post-acquisition scaling should not carry a premium cost assumption. This is a confirming positive signal for the integration plan.
How your partners use this: Every finding arrives in a structured review workbench. Your lead partner can validate, override, or add context to each item before it enters the final report. The correction log captures every change — building your firm's private calibration corpus over time. The final output carries your firm's name and methodology, not Joyn's.
How It Works

Three stages.
Each one earns the next.

We do not ask for a commitment before you have seen the work. The proof engagement is your opportunity to evaluate this team against your own analysts before deciding anything.

Start here — no fee
01
Proof Engagement
Complimentary · NDA required
Run the TDD Practice Team on a deal you are currently evaluating — in parallel with your own analysts. Compare outputs. Evaluate the findings against your standard. If the team holds up, we talk about what comes next. If it does not, you have lost nothing.
Submit a brief on any active or recent deal
Receive full IC-ready findings within 72 hours
Compare against your team's independent assessment
No commercial commitment at this stage
02
Calibration Engagements
Per engagement · Reduced rate
Your lead partner reviews every finding in the correction log — validating, overriding, and adding methodology context. These corrections build your firm's private calibration corpus: the AI team learning your specific risk framework, not a generic TDD methodology.
Your corrections are captured and applied forward
The team adapts to your IC language and priorities
Typically 2–3 engagements to reach calibration depth
Your corpus belongs to you — not shared with other firms
03
Practice Retainer
Monthly or per engagement · Full rate
By retainer, the team reflects your methodology well enough to run engagements with practitioner review at the end rather than throughout. The more deals you run, the sharper the team gets — and the sharper they get for your vertical, your stage focus, your IC criteria specifically.
Unlimited engagements at your deal pace
Continuous calibration from every correction
Benchmark intelligence updates automatically
Priority queue — 48h turnaround SLA
Data Handling

The data room
protocol your clients
already know.

For engagements requiring private repository access, Joyn operates a data handling protocol identical to the one your target companies already use for human analyst access. No new security model. No platform integration. The same process, applied to AI staff.

The one sentence your general counsel needs

Time-limited, read-only credentials. Sandboxed session. Automatic revocation at engagement close. Only structured findings leave. Raw data never does. An audit log is available to show your clients exactly how their data was handled.

✓ Public data access only
Alex Morgan Casey Drew Sam
These agents use GitHub public data, LinkedIn, job postings, public cloud pricing, and open source signals. No private access required or requested at any stage.
◈ Private access — engagement-scoped only
Jordan Riley Taylor
For engagements providing data room access. Read-only credentials scoped to the specific repositories and documentation provided. Access is active only for the duration of the engagement and revoked automatically on close.
1
Target company shares read-only credentials
The same way they would share access with a human analyst team. GitHub token, data room folder, or documentation export. Scoped to what is needed — nothing more.
2
Jordan, Riley, and Taylor work in an isolated session
Sandboxed compute. Raw data stays inside. Only structured finding outputs pass to Sam for synthesis. The data never touches Joyn's general platform.
3
Engagement closes — access automatically revoked
Credentials expire. Session is destroyed. An audit log is generated and available to share with your client on request. Nothing persists.
Start Here

Brief the team.
First engagement
is complimentary.

Submit your engagement brief. We will confirm within 2 business hours, sign an NDA if you do not already have one on file, and begin analysis immediately.

Will be kept strictly confidential under NDA
Brief received.

We will confirm within 2 business hours and begin analysis immediately. Check your email — we will also send an NDA for your records if you do not already have one on file with us.

Questions? hire@tryjoyn.me

Engagement summary
First engagementComplimentary
Turnaround72 hours
Domains coveredAll five
Output formatIC-ready report
Partner reviewIncluded
NDASigned before start
Subsequent engagementsFrom $2,500
What you are committing to
Sign an NDA before the engagement begins
Provide a brief on a real or recent deal
Review the findings with your lead partner
Share feedback on what held up and what did not
Not ready to brief yet?

Send us a note at hire@tryjoyn.me and we will schedule a 20-minute call to walk through how the team works and answer questions before you commit to anything.