AI proposes. You decide.
Who to staff, who to promote, what to pay. Castena works out the answer from your performance, staffing, compensation, and recruiting data. Every recommendation comes with the evidence chain behind it, so you can simulate the decision before you commit to it.
Evidence-grounded. Human-gated. Audit-ready.
You ask one question. Castena routes it to whichever agents it needs, and they work out the answer together.
Castena Copilot
From Score-and-Rank to Intelligent Staffing

Rule-Based Matching
Score, rank, done
- Top scores win: nothing else gets asked.
- Blind to people: burnout and resignation risk never enter the math.
- Same seniors every time: juniors never get the growth project.
- No memory of why: ask why someone was picked last quarter. Silence.
Castena Hybrid Engine
Score, reason, decide
- The AI asks the next question: top score, yes. But 95 percent resignation risk. Swapped out, with the reason on record.
- Understands plain language: "these two work badly together right now" is enough, and the team is rebuilt.
- The bench grows: mentor pairings drawn from what reviews actually say, not from the org chart.
- Every decision has a receipt: reasons cite their sources, ready for any audit.
And in Castena, nothing takes effect without a named human approving it.
What the AI sees that never fits in a spreadsheet cell.
Every staffing decision depends on knowledge no skills profile holds. In Castena, managers write it down as a note, and the AI must cite it whenever it changes a recommendation because of it.
Notes are never a shadow file. Every note is attributed to its author, visible in the audit trail, and citable down to the source. What influences a decision is always on the record.
The numbers decide who is possible. Your knowledge decides who is right.
AI weighing the note against skills, availability and workload...
Build the Perfect Team in Minutes
Phase 1: A deterministic engine scores every candidate across 7 weighted dimensions — skill match, availability, cost, experience, competency, certifications, and timezone.
Phase 2: An AI layer reasons over everything the numbers cannot capture — retention health, workload balance, team chemistry, mentorship fit, and cross-project allocation.
- • Marcus Webb's retention risk: 89% — talent assessment shows alignment gaps
- • His sprint task velocity decreased — workload overload risk invisible to the score
- • Unresolved conflict with Jennifer Lee from a prior code review — no metric captures this
- • Retention risk enforcement — excluded Marcus (89% risk) to protect project continuity
- • Mentorship pairing — Robert under Jennifer's guidance accelerates his IC3 readiness
- • Budget optimized — $3,400/mo freed for future project headroom
Scoring Engine
Why Marcus ranks higher but gets excluded
The deterministic score only ranks. The AI reasoning layer reads the evidence behind the numbers and adjusts the team before the proposal reaches you.
| Dimension | ||
|---|---|---|
| Skill Match/30 | 26 | 21 |
| Availability/20 | 19 | 20 |
| Cost Efficiency/15 | 13 | 15 |
| Experience/15 | 14 | 9 |
| Competency Fit/10 | 9 | 6 |
| Certifications/5 | 3 | 2 |
| Timezone/5 | 2 | 1 |
| Total | 86/100 | 74/100 |
| Decision | Selected by algorithm — excluded by AI | Substituted in by AI |
What the reasoning layer reads
Project milestones, task completions, peer kudos content — the AI reads the qualitative outcomes, not just aggregate stats.
Past collaboration history, unresolved conflicts, seniority balance — reasoned over holistically.
Whether an assignment hits an IC milestone or builds long-term team strength.
Retention health, workload balance, concurrent project overload — none of which fit in a score column.
One project, from empty to approved.
Five Capabilities. One Platform.
Hybrid AI + Deterministic Engine
Phase 2: An AI reasoning layer reviews actual, provable outcomes from your project deliverables and talent tools to evaluate key qualitative signals — like team fit, retention health, workload balance, mentorship pairing, and cross-project allocation.
Unified Talent Operations.
Castena is completely industry-agnostic, integrating seamlessly with your engineering, sales, customer support, and HR systems of record (like Workday and Personio) to form a unified, evidence-based performance record.
Sync completed repository milestones, closed issues, pull request merges, and peer appreciation updates
Track sprint milestone progress, completed task delivery, and high-level project targets
Sync department-level closed-won deal values, total sales revenue, and team quota achievements
Sync overall support SLA compliance rates, average customer satisfaction scores, and queue volumes
Import organizational structure, reporting lines, and target base salary bands
Sync team composition details, contract types, tenure milestones, and holiday capacity calendars
Bulk-ingest historical team performance metrics, merit cycle budgets, and skills matrices from spreadsheet templates
Built for European
Labor Standards
Castena is designed from the ground up to respect employee privacy rights and comply with the strictest data protection regulations, including GDPR/DSGVO and German labor law.
GDPR / DSGVO Datenschutz
We apply strict Datenschutz guidelines and data minimization. Castena tracks no sensitive PII or private employee details, keeping all evaluations focused strictly on objective performance deliverables.
BDSG § 26 & Works Council Friendly
Designed to align with German co-determination laws. Performance evaluation relies strictly on objective business outcomes (sprints, targets, KPIs) rather than intrusive behavioral surveillance (keystrokes, active hours).
Anti-Profiling (GDPR Art. 22)
Our AI operates strictly as an advisory copilot. There is no automated profiling or automated employment decisions; managers retain final approval and ownership over all staffing and performance calibrations.
Data Sovereignty
EU-region processing today, fully on-premise language models on the roadmap. Platform and data stores deploy in your environment, and every recommendation is documented in a printable, works-council-ready decision dossier.
Join Our Beta Program
Be part of our exclusive early adopter program and help shape the future of governed talent operations. Get early access to our MVP, influence product development, and secure founder pricing.
Early Adopter Benefits
Ready to be part of the talent operations revolution?
Talk to Our Team
Have questions about project staffing, raise modeling, bias audits, or talent calibration? We’ll help you explore the best fit for your organization.
Let's Build the Future Together
We're building something revolutionary in agentic talent operations. Whether you're interested in joining our beta program or forming strategic partnerships, we'd love to connect with you.
Schedule a Call
Book a 30-minute discovery call
Mon–Fri, 9 AM–6 PM (CET)