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+ "windows-targets",
+]
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+ "windows-targets",
+]
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+ "windows-targets",
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+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
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+[[package]]
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+[[package]]
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+
+[[package]]
+name = "zerocopy"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
+dependencies = [
+ "byteorder",
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/corp/rih/backend/Cargo.toml b/corp/rih/backend/Cargo.toml
new file mode 100644
index 000000000000..97d4821e3bf7
--- /dev/null
+++ b/corp/rih/backend/Cargo.toml
@@ -0,0 +1,25 @@
+[package]
+name = "rih-backend"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0"
+log = "0.4"
+serde = { version = "1.0", features = [ "derive" ] }
+serde_json = "1.0"
+uuid = { version = "1.3.3", features = ["v4", "serde"] }
+
+[dependencies.attohttpc]
+version = "0.22"
+default-features = false
+features = [ "tls-rustls" ]
+
+[dependencies.rouille]
+version = "3.6"
+default-features = false
+
+[dependencies.rust-s3]
+version = "0.33"
+default-features = false
+features = [ "sync-rustls-tls" ]
diff --git a/corp/rih/backend/default.nix b/corp/rih/backend/default.nix
new file mode 100644
index 000000000000..802479e509ce
--- /dev/null
+++ b/corp/rih/backend/default.nix
@@ -0,0 +1,16 @@
+{ depot, pkgs, ... }:
+
+depot.nix.readTree.drvTargets rec {
+  binary = depot.third_party.naersk.buildPackage {
+    src = ./.;
+  };
+
+  image = pkgs.dockerTools.buildLayeredImage {
+    name = "rih-backend";
+    config.Cmd = [ "${binary}/bin/rih-backend" ];
+
+    contents = [
+      binary
+    ];
+  };
+}
diff --git a/corp/rih/backend/src/main.rs b/corp/rih/backend/src/main.rs
new file mode 100644
index 000000000000..208e0367c6a8
--- /dev/null
+++ b/corp/rih/backend/src/main.rs
@@ -0,0 +1,168 @@
+use anyhow::{bail, Context, Result};
+use log::{debug, error, info, warn, LevelFilter};
+use rouille::{Request, Response};
+use serde::{Deserialize, Serialize};
+use std::collections::BTreeSet;
+use std::env;
+use std::net::SocketAddr;
+use std::time::{SystemTime, UNIX_EPOCH};
+use uuid::Uuid;
+
+mod yandex_log;
+
+/// Represents the request sent by the frontend application.
+#[derive(Debug, Deserialize)]
+struct FrontendReq {
+    captcha_token: String,
+    record: Record,
+}
+
+/// Represents a single record as filled in by a user. This is the
+/// primary data structure we want to populate and persist somewhere.
+#[derive(Debug, Deserialize, Serialize)]
+struct Record {
+    // Record-specific metadata
+    uuid: Uuid,
+
+    // Personal information
+    name: String,
+    email: String,
+    citizenship: String, // TODO
+    personal_details: String,
+
+    // Job information
+    position: String,
+    technologies: BTreeSet<String>,
+    job_details: String,
+    work_background: String,
+}
+
+impl Record {
+    fn validate(&self) -> bool {
+        true
+    }
+}
+
+fn validate_captcha(token: &str) -> Result<()> {
+    // TODO(tazjin): pass `ip` parameter
+    let url = "https://smartcaptcha.yandexcloud.net/validate";
+    let backend_key =
+        env::var("YANDEX_SMARTCAPTCHA_KEY").context("captcha verification key not provided")?;
+
+    #[derive(Deserialize)]
+    struct CaptchaResponse {
+        status: String,
+        message: String,
+    }
+
+    let response: CaptchaResponse = attohttpc::get(url)
+        .param("secret", backend_key)
+        .param("token", token)
+        .send()
+        .context("failed to send captcha verification request")?
+        .error_for_status()
+        .context("captcha verification request failed")?
+        .json()
+        .context("failed to deserialize captcha verification response")?;
+
+    if response.status != "ok" {
+        warn!(
+            "invalid captcha: {} ({})",
+            response.message, response.status
+        );
+    }
+
+    info!("captcha token was valid");
+
+    Ok(())
+}
+
+fn persist_record(ip: &SocketAddr, record: &Record) -> Result<()> {
+    let bucket_name = "rih-backend-data";
+    let credentials =
+        s3::creds::Credentials::from_env().context("failed to initialise storage credentials")?;
+
+    let yandex_region: s3::Region = s3::Region::Custom {
+        region: "ru-central1".to_string(),
+        endpoint: "storage.yandexcloud.net".to_string(),
+    };
+
+    let bucket = s3::Bucket::new(bucket_name, yandex_region, credentials)
+        .context("failed to initialise storage client")?;
+
+    let path_uuid = Uuid::new_v4();
+    let epoch = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .context("failed to get current time")?
+        .as_secs();
+
+    let path = format!("/records/{}-{}.json", epoch, path_uuid);
+
+    info!("writing record to '{}'", path);
+
+    let data = serde_json::json!({
+        "ip": ip.to_string(),
+        "record": record,
+    });
+
+    let response = bucket
+        .put_object(path, data.to_string().as_bytes())
+        .context("failed to persist storage object")?;
+
+    debug!(
+        "Object Storage response: ({}) {}",
+        response.status_code(),
+        response.as_str().unwrap_or("<unprintable>")
+    );
+
+    Ok(())
+}
+
+fn handle_submit(req: &Request) -> Result<Response> {
+    let submitted: FrontendReq =
+        rouille::input::json::json_input(req).context("failed to deserialise frontend request")?;
+
+    validate_captcha(&submitted.captcha_token)?;
+
+    if !submitted.record.validate() {
+        bail!("invalid record: {:?}", submitted.record);
+    }
+
+    persist_record(req.remote_addr(), &submitted.record).context("failed to persist record")?;
+
+    Ok(Response::text("success"))
+}
+
+fn main() -> Result<()> {
+    log::set_logger(&yandex_log::YANDEX_CLOUD_LOGGER)
+        .map(|()| log::set_max_level(LevelFilter::Info))
+        .expect("log configuration must succeed");
+    let port = env::var("PORT").unwrap_or_else(|_| /* rihb = */ "7442".to_string());
+    let listen = format!("0.0.0.0:{port}");
+
+    info!("launching rih-backend on: {}", listen);
+
+    rouille::start_server(&listen, move |request| {
+        if request.method() == "POST" && request.url() == "/submit" {
+            info!("handling submit request from {}", request.remote_addr());
+            match handle_submit(request) {
+                Ok(response) => {
+                    info!("submit handled successfully");
+                    response
+                }
+                Err(err) => {
+                    error!("failed to handle submit: {}", err);
+                    Response::empty_400()
+                }
+            }
+        } else {
+            warn!(
+                "no matching route for request: {} {}",
+                request.method(),
+                request.url()
+            );
+
+            Response::empty_404()
+        }
+    });
+}
diff --git a/corp/rih/backend/src/yandex_log.rs b/corp/rih/backend/src/yandex_log.rs
new file mode 100644
index 000000000000..64bb4ff97dc5
--- /dev/null
+++ b/corp/rih/backend/src/yandex_log.rs
@@ -0,0 +1,47 @@
+//! Implements a `log::Log` logger that adheres to the structure
+//! expected by Yandex Cloud Serverless logs.
+//!
+//! https://cloud.yandex.ru/docs/serverless-containers/concepts/logs
+
+use log::{Level, Log};
+use serde_json::json;
+
+pub struct YandexCloudLogger;
+
+pub const YANDEX_CLOUD_LOGGER: YandexCloudLogger = YandexCloudLogger;
+
+fn level_map(level: &Level) -> &'static str {
+    match level {
+        Level::Error => "ERROR",
+        Level::Warn => "WARN",
+        Level::Info => "INFO",
+        Level::Debug => "DEBUG",
+        Level::Trace => "TRACE",
+    }
+}
+
+impl Log for YandexCloudLogger {
+    fn enabled(&self, _: &log::Metadata<'_>) -> bool {
+        true
+    }
+
+    fn log(&self, record: &log::Record<'_>) {
+        if !self.enabled(record.metadata()) {
+            return;
+        }
+
+        eprintln!(
+            "{}",
+            json!({
+                "level": level_map(&record.level()),
+                "message": record.args().to_string(),
+                "target": record.target(),
+                "module": record.module_path(),
+                "file": record.file(),
+                "line": record.line(),
+            })
+        );
+    }
+
+    fn flush(&self) {}
+}