You sell async mock technical interview feedback by packaging it as a Brillay Custom Work: a follower records or writes out their answer to a technical interview question, pays a flat price upfront, and you return written or voice feedback on their approach and communication within a set turnaround — no live call required. Custom Work lets you offer clearly scoped commissions and services: you set the price, the scope and the delivery time, and followers submit a brief and pay before you start.
No monthly fee, you only pay a small platform fee when you get paid. 8% platform fee when a follower pays for work, 5% platform fee on tips and goals. Card processing is separate. pricing
Senior engineers, hiring managers, and bootcamp mentors tend to get some version of the same message: "Can you look at how I answered this LeetCode-style question?" or "I recorded my system-design walkthrough — is my explanation clear?" The candidate pool asking those questions is large and replenishing: the U.S. Bureau of Labor Statistics projects about 106,100 job openings per year for software developers, quality assurance analysts, and testers, on average, over the 2025–35 decade (BLS Occupational Outlook Handbook, Software Developers). Automated tooling has not removed the demand for a human read on those answers: 84 percent of respondents said they use or plan to use AI tools in their development process, while 46 percent said they distrust the accuracy of AI output, according to the Stack Overflow 2025 Developer Survey (Stack Overflow 2025 Developer Survey, AI). Instead of finding a shared calendar slot for feedback on a practice answer, a senior engineer can scope that review as a paid job sent through their own Brillay page — no live call, no scheduling.
What counts as "async technical interview feedback" on Brillay?
Async technical interview feedback is a paid review of a candidate's already-completed practice answer, delivered on the creator's own schedule instead of in a live session. You send back a written note, plus files or a link if the submission calls for it.
Async feedback is a distinct offer from the Brillay guide on pricing a live mock interview, which covers scheduled, real-time practice sessions. Async feedback trades the real-time back-and-forth of a live session for flexibility: the follower records their answer whenever they are ready, and the creator reviews a backlog of submissions in one sitting instead of blocking out a live calendar slot — the same trade a productivity creator makes when they review a follower's note-taking and organization system instead of coaching it live.
Because the follower is submitting a file — a recording, a transcript, or a written walkthrough — build the async feedback offer as a custom request that accepts attached files (how Brillay works).
Should async interview feedback be a Paid Question or a custom request?
Build async technical interview feedback with Custom Work. Paid Questions on Brillay accept only a text message from the follower, with the creator replying in writing. Custom Work accepts attached files from the follower and lets the creator deliver text plus files of any allowed type and/or a link.
| What the follower sends | Right Brillay offer | Why |
|---|---|---|
| A single text question, no attachment | Paid Question | Paid Questions accept only a text message from the follower |
| A screen recording, audio file, or PDF transcript | custom request | Custom Work lets the follower attach files and lets the creator return files, audio, and video |
| A written answer plus a request for a marked-up rewrite | custom request | The deliverable is a file, not a reply message |
| A quick "does this sentence work?" check | Paid Question | No attachment is needed in either direction |
When the follower needs to attach a recording or a longer transcript, use Custom Work so they can attach the file and the creator can deliver text plus files and/or a link.
What can a follower submit for feedback?
A follower ordering a custom request can attach their own files with the order. Brillay's Custom Work page states that a follower can attach up to 5 files, and the creator can deliver text plus files of any allowed type and/or a private link, with video or audio up to 20 minutes.
Followers can attach video, audio, images, PDF, Word, Excel, and PowerPoint files to a custom request order. Followers can send code as a PDF, a plain-text file, a screen recording, or pasted into the order note — and use a private link (Google Drive, Loom, Dropbox) for anything above the per-file upload limit shown in the uploader at order time.
| Submission type | What it captures | Best-fit feedback |
|---|---|---|
| Screen recording of a coding round | Syntax, debugging habits, thinking-out-loud pace | Voice or written notes on approach and communication |
| Audio-only system-design walkthrough | Structure, tradeoff reasoning, clarity under time pressure | Written notes keyed to a timestamped outline |
| Written transcript of a behavioral answer | Story structure, specificity, conciseness | Line-edited or rewritten version with comments |
| Video of a full mock round (self-recorded) | Overall pacing, filler words, recovery from a stumble | Combined written + voice feedback |
Set clear submission requirements before a follower pays — for example, a maximum recording length or a required file format — so you are not left interpreting an open-ended, unbounded submission after payment has already been collected.
How is this different from a live mock interview?
Async feedback reviews an answer the follower has already recorded or written; a live mock interview evaluates and coaches them in real time. Async trades real-time follow-up questions for flexibility — the follower records whenever ready, and the creator reviews a batch of submissions in one sitting without coordinating two calendars, the same shift language tutors make when they move IELTS and TOEFL writing feedback online instead of holding live sessions.
CareerOneStop, the career resource sponsored by the U.S. Department of Labor, lists mock-interview practice as a preparation step candidates take ahead of an in-depth or panel round, which is exactly the role an async review can fill.
"Practice in mock interviews, and test equipment ahead of time if meeting by video." — CareerOneStop, Types of Interviews
CareerOneStop's guidance on virtual interviews goes a step further and treats a recorded practice run plus outside feedback as the method itself, not an optional extra.
"Ask a friend to mock interview you. Use natural gestures and show enthusiasm and energy." — CareerOneStop, Virtual Interviews
| Situation | Async feedback | Live mock interview |
|---|---|---|
| Follower already has a recording or written answer | Best fit — review it as submitted | Redundant; the answer already exists |
| Follower wants on-the-spot follow-up questions | Not possible — no real-time exchange | Best fit |
| Follower and creator are in different time zones | Best fit — no scheduling required | Hard; needs a shared slot |
| Creator wants to batch work into one sitting | Best fit — review a queue of submissions | Not possible; each session is a fixed slot |
| Follower wants a re-readable, detailed critique | Best fit — written notes they keep and reread | Weaker; live notes are rarely captured |
Remote and distributed work is common across the developer audience an async review serves: 32.4 percent of developers work fully remote, according to the Stack Overflow 2025 Developer Survey, which collected more than 49,000 responses from 177 countries (Stack Overflow 2025 Developer Survey, Work). A time zone gap that makes a live mock interview hard to schedule has no effect on an async review, because nothing has to happen simultaneously — the same logic lets instrument teachers charge for async feedback instead of live lessons.
How much should you charge for async technical interview feedback?
Price async technical interview feedback by estimating total review time — watching or reading the submission, taking notes, writing the reply — and multiplying it by your target hourly rate. No government or industry survey publishes a market rate for this specific service, so treat every figure on this page as an editorial starting point.
A Brillay editorial scan of published rate sources in September 2026 — the BLS Occupational Outlook Handbook, the BLS Occupational Employment and Wage Statistics program, and CareerOneStop — found no government or industry dataset that reports a price specifically for asynchronous technical-interview feedback. In the absence of a measured benchmark, the defensible input is the creator's own opportunity cost. The U.S. Bureau of Labor Statistics reports a median annual wage of $135,980 for software developers in May 2025 (BLS Occupational Outlook Handbook), and a median annual wage of $104,300 for software quality assurance analysts and testers in the same May 2025 period — usable as a floor for what an hour of a working engineer's review time is worth.
The roles this feedback serves are not all moving the same direction, which is why the target role should shape the price more than a flat "tech interview" rate would. The U.S. Bureau of Labor Statistics projects employment of software developers, quality assurance analysts, and testers to grow 10 percent from 2025 to 2035, much faster than the average for all occupations (BLS Occupational Outlook Handbook). Over the same 2025–35 projection decade, the U.S. Bureau of Labor Statistics projects employment of computer programmers to decline 7 percent, with about 4,400 openings per year on average. The U.S. Bureau of Labor Statistics also reports a median annual wage of $100,390 for computer programmers in May 2025 (BLS Occupational Outlook Handbook), which is a lower opportunity-cost floor than the software-developer median. The 10 percent growth projection and the 7 percent decline projection both come from the 2025–35 projections vintage published in the Occupational Outlook Handbook, which the U.S. Bureau of Labor Statistics revises annually — check the source page before quoting either number, because the projection window shifts with each revision.
The same time-times-rate worksheet used in pricing a live mock interview applies here, with one adjustment: async review time includes the minutes spent writing, not just the minutes spent listening.
What should an async feedback listing include?
An async feedback listing needs five things stated before payment: the question type, the submission format and limit, the deliverable, the delivery time, and the exclusions. Brillay lets you set a custom request delivery time of up to 5 days, so every delivery time you advertise must fit inside five days.
- Question type: Coding, system design, behavioral, or a mix — one focus per tier, not an open "any technical interview question."
- Submission format and limit: For example, one recording up to 15 minutes, or one written transcript up to 500 words.
- Deliverable: Written notes, a voice walkthrough, a timestamped outline, or a combination — delivered as a written note plus up to 5 files.
- Delivery time: Choose a delivery time you can reliably meet: 1–24 hours or 1–5 days, with five days as the maximum.
- Exclusions: State plainly that the offer is feedback on delivery and approach, not a live coaching call, a job guarantee, or a rewrite of the follower's actual code or design doc unless explicitly included.
Illustrative tiers for an async technical interview feedback offer:
| Tier | Deliverable | Typical delivery time |
|---|---|---|
| Quick answer critique | Written notes on one submitted answer (coding or behavioral) | 24–48h |
| Full round review | Voice walkthrough covering pacing, clarity, and technical accuracy across a recorded round | 48–96h |
| System-design deep dive | Timestamped written outline plus voice commentary on tradeoffs and structure | 72–120h |
Treat every deliverable and delivery time in the tier table as an example to adapt, not a guarantee of demand or results.
How do you sell async interview feedback from your bio?
Selling from your bio takes three pieces: one Brillay link in the bio field, a short call to action naming the offer, and a first service card whose title states the exact deliverable. Point every "can you review my mock interview?" comment or DM at that single link instead of answering for free.
Where the link goes. Put the Brillay link in the single clickable URL field of each profile — the LinkedIn "Website" slot, the X and Instagram bio link, the GitHub profile "Website" field, and the link line of a personal site's about page. Brillay turns one link-in-bio into the place followers send paid requests, so one URL carries every offer at once; you do not need a separate link per tier. Whatever the candidate submits — a recording, a transcript, or a written walkthrough — they pay by card as a guest, at the price you set.
Bio call-to-action lines. The bio field itself is short by design: X caps a profile bio at 160 characters (X Help Center, How to customize your profile), and Instagram allows a bio of up to 150 characters (Instagram Help Center, Bio). Keep the call to action well inside those caps — roughly 60 characters — so the offer still reads after a truncated mobile bio, and name the artifact the follower submits:
- "Send me your recorded mock interview — I'll review it →"
- "Paid async feedback on your coding or system-design answer →"
- "Former big-tech interviewer. Record your answer, I'll critique it →"
- "Bootcamp mentor · Paid reviews of your practice interviews →"
Landing-page wording. The first line a follower reads on your Brillay page should state who reviews, what they submit, and when it comes back — for example: "I've run 200+ technical interviews" — use your real number — "record your answer, and I'll send back written and voice feedback within 48 hours." Follow that line with the submission limit stated as a number, so the scope is unambiguous before anyone pays.
What the first service card should say. Name the deliverable, not the topic. A card titled "Interview help" leaves the follower guessing; a card titled "Coding-round answer critique — written notes in 48h" tells them exactly what they are buying. The description should carry four lines: what to submit ("one screen recording up to 15 minutes"), what you send back ("written notes plus a 5-minute voice walkthrough"), the delivery time, and one exclusion ("feedback on approach and communication — not a code rewrite or a job guarantee"). Launch with one card, not three: a single unambiguous offer is easier to point a DM at than a menu.
Answering the DM. When the next "can you look at this?" message arrives, reply with the link and one sentence: "Yes — I do this as a paid async review, here's the link and what to send." The follower pays the full price upfront and their request lands in your creator inbox as a private message.
Who actually sells this kind of feedback?
Async interview feedback fits people who have sat on the other side of the table: senior and staff engineers who have conducted technical interviews, hiring managers, and coding bootcamp mentors still fielding requests from former students after a cohort ends. Credibility comes from interviewing experience, not from currently holding a recruiting title.
The pool of people qualified to sell this review is large: software developers held about 1.7 million jobs in the United States in 2025 (BLS Occupational Outlook Handbook), and computer programmers held about 110,800 jobs in 2025. The audience for that experience is well paid and therefore able to spend on prep: the U.S. Bureau of Labor Statistics reports a median annual wage of $109,470 for computer and information technology occupations in May 2025, higher than the $50,980 median annual wage for all occupations in the same period (BLS Occupational Outlook Handbook, Computer and Information Technology Occupations). The buying side skews earlier in a career: 35 percent of developers responding to the Stack Overflow 2025 Developer Survey had been coding for less than 10 years. How coding bootcamp mentors can get paid outside the bootcamp covers the broader shift from free DM help to a priced offer, and Brillay for developers covers the wider set of offers engineers can package. The same async-review structure carries over to other coaching niches, including strategy game coaches who sell feedback on a submitted replay instead of running a live session. Represent your background accurately in the listing, and avoid implying a guarantee about the follower's outcome — feedback on delivery and approach is not a promise of an offer.
What else can you sell alongside interview feedback?
Alongside async feedback, a Brillay page can offer Paid Questions for quick strategy questions and Tips for supporters who found your free content useful. Keep the feedback offer scoped to reviewing one submitted answer; ongoing coaching, resume rewrites, and live rehearsals belong in separate offers.
Tips let followers send a one-time thank-you, with nothing for you to deliver and no membership for them to join.
How do you get an async feedback offer live?
To publish the offer, choose one interview type, set a clear submission limit, name exactly what the client receives, and choose a delivery time of up to five days. Publish the custom request, then put the link in your bio and answer the next request with it.
Decide the single question type your first tier will cover — coding, system design, or behavioral — rather than launching an "anything technical" offer on day one. Creators can enable Custom Work based on their own experience, while remaining responsible for how they describe that experience and any claims about outcomes.
Frequently asked questions
Common questions about async technical interview feedback cover which Brillay offer type to use, whether a hiring credential is required, what happens when a submission exceeds the scope you advertised, and what the platform charges. Short answers follow, each citing the Brillay page or external source it comes from.
Should async technical interview feedback be a Paid Question or a custom request?
Use a custom request, because the follower needs to attach the recording or transcript you are reviewing. Paid Questions let a follower pay upfront to ask one private question, and you send one written reply on your own time — no live call or scheduling. That suits a quick text-only check, not a review of a submitted file.
Do I need to currently work in tech or hold a hiring title to sell this?
There is nothing to apply for and no approval is required to enable Custom Work. Represent your actual experience accurately in the listing, and check any local rules that apply if you market the service using a specific professional title.
What if the follower's submission is longer than what I scoped?
You can decline a request; followers pay upfront, so there is nothing to chase. Applied to a 40-minute recording sent to a 15-minute tier, that means you can decline the order, or point the follower to a larger tier before starting the review. Stating a clear length limit up front avoids that conversation happening after payment.
How long can my advertised delivery time be?
For a custom request, choose 1–24 hours or 1–5 days; five days is the longest delivery time available. A tier advertising a seven-day delivery time needs to be shortened to the available window on the platform.
What does Brillay charge for this kind of offer?
Brillay's own platform fee is set out on the pricing page, and there is no monthly fee. Card processing is billed on top of that; Stripe's published pricing lists typical US domestic online-card processing at 2.9% + $0.30 per successful charge (Stripe pricing), with international cards and currency conversion priced higher.
Create your free Brillay page and turn the next "can you look at my mock interview?" message into a clearly scoped, paid review.
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