01
InterviewBehavioral interviews
Answer with structure, evidence, and calm under follow-up pressure.
- STAR-style answers
- Follow-up drilldowns
- Cultural-fit traps
Free public beta · Open source · MIT
Rehearse interviews, negotiations, and tough 1:1s — before they happen.
careersim.ai is an AI career practice simulator for behavioral interviews, salary negotiations, performance feedback, and high-stakes workplace conversations — with adaptive personas and instant scored coaching.
Practice for
Behavioral interviewsSalary negotiationPerformance reviewsLayoff conversationsPIP discussionsPromotion casePitching to execsSaying no at workSkip-level 1:1sRecruiter screensSystem design loopDifficult feedback
Scenarios
12+
High-stakes career moments — new ones every week.
Personas
8
Adaptive AI characters from cautious to combative.
Feedback signals
6
Scored on clarity, evidence, confidence, structure, tone, pacing.
Replays
∞
Practice the same moment until you actually own it.
Practice the hard moments
The career conversations that actually move the needle.
Interviews, negotiations, feedback, pitches, and pushback — rehearsed with adaptive personas so the words feel familiar before the room ever gets tense.
02
CompensationSalary negotiation
Make a clear ask without sounding defensive, vague, or apologetic.
- Counter-offers
- Equity & sign-on
- Stay-or-walk lines
03
1:1Difficult feedback
Stay grounded while receiving criticism — or giving it directly.
- Receiving a low review
- Coaching a struggling peer
- Calling out behavior
04
LeadershipPitching ideas
Sharpen exec-ready narratives and handle pushback live.
- Project kickoffs
- Scope defenses
- Skip-level pitches
05
NetworkLinkedIn networking
Triage recruiter DMs and earn a second touchpoint with senior strangers.
- Cold intros
- Recruiter screens
- Coffee-chat prep
06
ConflictSaying no at work
Push back on scope creep without burning capital with stakeholders.
- Scope refusals
- Capacity guardrails
- Reprioritization
Meet the cast
AI personas that push back like real humans.
Eight adaptive characters from cautious to combative — each with their own questioning style, attention budget, and tolerance for vagueness.
Brenda Vance
HR manager · risk-averse
“Can you walk me through how you’d handle a teammate who consistently misses deadlines?”
BehavioralSTAR drilldownsCultural fit
David Miller
Senior analyst · skeptical veteran
“I’ve seen this before. What data supports the assumption that this scope is even feasible?”
PushbackData-drivenPitch defense
Sarah Jenkins
PM · overwhelmed, people-pleaser
“I know it’s a lot to ask, but could you possibly take this one off my plate? It would really help me out.”
Saying noBoundariesRepair talks
Marcus Whitfield
VP · time-boxed, skeptical of networking
“I’ve got about 15 minutes. What were you hoping to get out of this?”
Skip-levelsExec briefOutcome-focused
Vikram Shah
Recruiter · pipeline-pressured
“Comp is competitive — happy to discuss live! Can you do tomorrow at 3 for a quick 15-min call?”
LinkedIn DMsLevel probesComp questions
Chloe Davis
Junior · eager, anxious to please
“Yes, absolutely! Sorry — just to be sure, you want me to take this all the way through to launch?”
DelegationClarity checksCoaching
How it works
Deliberate practice. Not generic advice.
Pick a simulation, talk with an adaptive persona, then get scored feedback that explains what improved and what to try next. Replay the same moment until it stops feeling scary.
You“I’d like to discuss the package…”
Brenda · HRreply loop
reply loopFeedback
Choose a simulation
Pick a career moment, persona archetype, and difficulty.
12+ scenarios8 personas3 difficulties
Practice live
Respond out loud or in text while the AI probes, redirects, and escalates.
Voice or textReal follow-upsPause & resume
Review feedback
See scored signals, transcript notes, and a suggested follow-up drill.
6 scored signalsTranscript reviewNext drill
From the beta
Practice in private. Show up like you’ve done this before.
★★★★★
I walked into my Stripe loop already used to being interrupted. The negotiation rerun alone got me +$22k.
★★★★★
The feedback scoring was the unlock. It told me exactly when my answers turned vague — which is when I always lose interviewers.
★★★★★
Rehearsing the layoff conversation twice in private was 100× better than reading another article about it.
For business
Bring AI personas to your team.
The same engine that powers the public simulations — custom-built for your workflows, your customers, and your brand voice.
B1
TrainingCustom simulations
Scenarios built around your real workflows — your product, your scripts, your edge cases.
- Sales discovery & demos
- Onboarding & ramp
- Interview loops
B2
PersonasBespoke AI personas
Counterparts modeled on your actual customers and stakeholders — tone, objections, and all.
- Your ICP & segments
- Voice + text
- Calibrated pushback
B3
SupportCustomer support practice
Escalations, angry tickets, and tricky refunds — reps rehearse the hard conversations safely.
- Escalation drills
- Complaint handling
- Live chat & voice
B4
ContentAutomated content creation
Persona-driven content pipelines: posts, scripts, and campaigns written in-character, at scale.
- Social posts
- Scripts & narratives
- Campaign variants
B5
AssessmentAssessment & certification
Score candidates and teams against your own rubric — consistent, auditable, bias-checked.
- Hiring screens
- Pitch certification
- Rubric scoring
B6
PlatformWhite-label & API
Embed the simulation engine in your own LMS, academy, or product — your brand, our cast.
- REST API
- SSO & embeds
- Your branding
Your team
tasks
AI persona
self-critique & reflection
Your data vaulttickets · docs · playbooksgrounded in your data
drafts & replies
Output
review & feedbackhandled ticketdraft postscored session
B2B · custom builds · limited pilot slots
Tell us about your use case.
Custom training simulations, bespoke personas, support practice, and persona-driven content — scoped to your team. We reply within two business days with a pilot proposal.
or just send an email to hello@careersim.ai
Discovery call
We map your use case, audience, and what "good" looks like.
Pilot in weeks
A tailored simulation and persona pack, live with your team.
Scale & measure
Roll out org-wide with progress tracking and reporting.
BETA · open · no credit card
Walk into your next interview, negotiation, or 1:1 with a sharper first impression.
Rehearse with cautious hiring managers, skeptical stakeholders, and anxious teammates before the real conversation is on the line.
Who is it for?
People preparing for interviews, promotions, negotiations, and difficult workplace conversations.
What makes it different?
It creates realistic pressure, not static tips. The feedback is tied to what you actually said.
Is it free to use?
careersim.ai is free during the public beta. Practice as many interviews, negotiations, and workplace conversations as you want, no credit card required.
What can I practice?
Behavioral interviews, technical and cultural-fit interviews, salary negotiations, performance feedback, delegating, saying no to extra work, pitching ideas, and other high-stakes 1:1s — with new scenarios added regularly.
How does the feedback work?
Every session is scored on signals like clarity, confidence, and evidence using your actual responses. You get specific coaching notes after the conversation so you know exactly what to try next.
Is my practice data private?
Your sessions are tied to your account and used to power your feedback and progress. careersim.ai doesn't sell your transcripts, and you can delete your account and data at any time.