diff --git a/elixir/bob/.exercism/config.json b/elixir/bob/.exercism/config.json
new file mode 100644
index 0000000..5d53d03
--- /dev/null
+++ b/elixir/bob/.exercism/config.json
@@ -0,0 +1,46 @@
+{
+  "authors": [
+    "rubysolo"
+  ],
+  "contributors": [
+    "andrewsardone",
+    "angelikatyborska",
+    "austinlyons",
+    "cbliard",
+    "Cohen-Carlisle",
+    "dalexj",
+    "devonestes",
+    "digitalronin",
+    "doncruse",
+    "etrepum",
+    "ghajba",
+    "kytrinyx",
+    "lpil",
+    "neenjaw",
+    "parkerl",
+    "pminten",
+    "rsslldnphy",
+    "seeflanigan",
+    "sotojuan",
+    "Teapane",
+    "tjcelaya",
+    "Tonkpils",
+    "victorpre",
+    "vladimir-tikhonov",
+    "waiting-for-dev"
+  ],
+  "files": {
+    "solution": [
+      "lib/bob.ex"
+    ],
+    "test": [
+      "test/bob_test.exs"
+    ],
+    "example": [
+      ".meta/example.ex"
+    ]
+  },
+  "blurb": "Bob is a lackadaisical teenager. In conversation, his responses are very limited.",
+  "source": "Inspired by the 'Deaf Grandma' exercise in Chris Pine's Learn to Program tutorial.",
+  "source_url": "https://pine.fm/LearnToProgram/?Chapter=06"
+}
diff --git a/elixir/bob/.exercism/metadata.json b/elixir/bob/.exercism/metadata.json
new file mode 100644
index 0000000..dd5490b
--- /dev/null
+++ b/elixir/bob/.exercism/metadata.json
@@ -0,0 +1 @@
+{"track":"elixir","exercise":"bob","id":"7c75c2cb7c6d4f808ec6412bbc842f86","url":"https://exercism.org/tracks/elixir/exercises/bob","handle":"negrienko","is_requester":true,"auto_approve":false}
\ No newline at end of file
diff --git a/elixir/bob/.formatter.exs b/elixir/bob/.formatter.exs
new file mode 100644
index 0000000..d2cda26
--- /dev/null
+++ b/elixir/bob/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/elixir/bob/.gitignore b/elixir/bob/.gitignore
new file mode 100644
index 0000000..9dfd16d
--- /dev/null
+++ b/elixir/bob/.gitignore
@@ -0,0 +1,24 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+bob-*.tar
+
diff --git a/elixir/bob/HELP.md b/elixir/bob/HELP.md
new file mode 100644
index 0000000..618c2da
--- /dev/null
+++ b/elixir/bob/HELP.md
@@ -0,0 +1,75 @@
+# Help
+
+## Running the tests
+
+From the terminal, change to the base directory of the exercise then execute the tests with:
+
+```bash
+$ mix test
+```
+
+This will execute the test file found in the `test` subfolder -- a file ending in `_test.exs`
+
+Documentation:
+
+* [`mix test` - Elixir's test execution tool](https://hexdocs.pm/mix/Mix.Tasks.Test.html)
+* [`ExUnit` - Elixir's unit test library](https://hexdocs.pm/ex_unit/ExUnit.html)
+
+## Pending tests
+
+In test suites of practice exercises, all but the first test have been tagged to be skipped.
+
+Once you get a test passing, you can unskip the next one by commenting out the relevant `@tag :pending` with a `#` symbol.
+
+For example:
+
+```elixir
+# @tag :pending
+test "shouting" do
+  assert Bob.hey("WATCH OUT!") == "Whoa, chill out!"
+end
+```
+
+If you wish to run all tests at once, you can include all skipped test by using the `--include` flag on the `mix test` command:
+
+```bash
+$ mix test --include pending
+```
+
+Or, you can enable all the tests by commenting out the `ExUnit.configure` line in the file `test/test_helper.exs`.
+
+```elixir
+# ExUnit.configure(exclude: :pending, trace: true)
+```
+
+## Useful `mix test` options
+
+* `test/<FILE>.exs:LINENUM` - runs only a single test, the test from `<FILE>.exs` whose definition is on line `LINENUM`
+* `--failed` - runs only tests that failed the last time they ran
+* `--max-failures` - the suite stops evaluating tests when this number of test failures
+is reached
+* `--seed 0` - disables randomization so the tests in a single file will always be ran
+in the same order they were defined in
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit lib/bob.ex` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [Elixir track's documentation](https://exercism.org/docs/tracks/elixir)
+- The [Elixir track's programming category on the forum](https://forum.exercism.org/c/programming/elixir)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+If you're stuck on something, it may help to look at some of the [available resources](https://exercism.org/docs/tracks/elixir/resources) out there where answers might be found.
\ No newline at end of file
diff --git a/elixir/bob/README.md b/elixir/bob/README.md
new file mode 100644
index 0000000..c732bc7
--- /dev/null
+++ b/elixir/bob/README.md
@@ -0,0 +1,73 @@
+# Bob
+
+Welcome to Bob on Exercism's Elixir Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Introduction
+
+Bob is a [lackadaisical][] teenager.
+He likes to think that he's very cool.
+And he definitely doesn't get excited about things.
+That wouldn't be cool.
+
+When people talk to him, his responses are pretty limited.
+
+[lackadaisical]: https://www.collinsdictionary.com/dictionary/english/lackadaisical
+
+## Instructions
+
+Your task is to determine what Bob will reply to someone when they say something to him or ask him a question.
+
+Bob only ever answers one of five things:
+
+- **"Sure."**
+  This is his response if you ask him a question, such as "How are you?"
+  The convention used for questions is that it ends with a question mark.
+- **"Whoa, chill out!"**
+  This is his answer if you YELL AT HIM.
+  The convention used for yelling is ALL CAPITAL LETTERS.
+- **"Calm down, I know what I'm doing!"**
+  This is what he says if you yell a question at him.
+- **"Fine. Be that way!"**
+  This is how he responds to silence.
+  The convention used for silence is nothing, or various combinations of whitespace characters.
+- **"Whatever."**
+  This is what he answers to anything else.
+
+## Source
+
+### Created by
+
+- @rubysolo
+
+### Contributed to by
+
+- @andrewsardone
+- @angelikatyborska
+- @austinlyons
+- @cbliard
+- @Cohen-Carlisle
+- @dalexj
+- @devonestes
+- @digitalronin
+- @doncruse
+- @etrepum
+- @ghajba
+- @kytrinyx
+- @lpil
+- @neenjaw
+- @parkerl
+- @pminten
+- @rsslldnphy
+- @seeflanigan
+- @sotojuan
+- @Teapane
+- @tjcelaya
+- @Tonkpils
+- @victorpre
+- @vladimir-tikhonov
+- @waiting-for-dev
+
+### Based on
+
+Inspired by the 'Deaf Grandma' exercise in Chris Pine's Learn to Program tutorial. - https://pine.fm/LearnToProgram/?Chapter=06
\ No newline at end of file
diff --git a/elixir/bob/lib/bob.ex b/elixir/bob/lib/bob.ex
new file mode 100644
index 0000000..8bbd4f5
--- /dev/null
+++ b/elixir/bob/lib/bob.ex
@@ -0,0 +1,23 @@
+defmodule Bob do
+  @spec hey(String.t()) :: String.t()
+  def hey(input) do
+    trimmed = String.trim(input)
+
+    is_yell? = String.upcase(trimmed) == trimmed and String.downcase(trimmed) != trimmed
+    is_question? = String.ends_with?(trimmed, "?")
+    is_silence? = trimmed == ""
+
+    cond do
+      is_silence? ->
+        "Fine. Be that way!"
+      is_yell? and is_question? ->
+        "Calm down, I know what I'm doing!"
+      is_question? ->
+        "Sure."
+      is_yell? ->
+        "Whoa, chill out!"
+      true ->
+        "Whatever."
+    end
+  end
+end
diff --git a/elixir/bob/mix.exs b/elixir/bob/mix.exs
new file mode 100644
index 0000000..68259d0
--- /dev/null
+++ b/elixir/bob/mix.exs
@@ -0,0 +1,28 @@
+defmodule Bob.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :bob,
+      version: "0.1.0",
+      # elixir: "~> 1.8",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end
diff --git a/elixir/bob/test/bob_test.exs b/elixir/bob/test/bob_test.exs
new file mode 100644
index 0000000..a7ce926
--- /dev/null
+++ b/elixir/bob/test/bob_test.exs
@@ -0,0 +1,142 @@
+defmodule BobTest do
+  use ExUnit.Case
+
+  test "stating something" do
+    assert Bob.hey("Tom-ay-to, tom-aaaah-to.") == "Whatever."
+  end
+
+  # @tag :pending
+  test "shouting" do
+    assert Bob.hey("WATCH OUT!") == "Whoa, chill out!"
+  end
+
+  # @tag :pending
+  test "shouting gibberish" do
+    assert Bob.hey("FCECDFCAAB") == "Whoa, chill out!"
+  end
+
+  # @tag :pending
+  test "asking a question" do
+    assert Bob.hey("Does this cryogenic chamber make me look fat?") == "Sure."
+  end
+
+  # @tag :pending
+  test "asking a numeric question" do
+    assert Bob.hey("You are, what, like 15?") == "Sure."
+  end
+
+  # @tag :pending
+  test "asking gibberish" do
+    assert Bob.hey("fffbbcbeab?") == "Sure."
+  end
+
+  # @tag :pending
+  test "talking forcefully" do
+    assert Bob.hey("Hi there!") == "Whatever."
+  end
+
+  # @tag :pending
+  test "using acronyms in regular speech" do
+    assert Bob.hey("It's OK if you don't want to go to the DMV.") == "Whatever."
+  end
+
+  # @tag :pending
+  test "talking in capitals" do
+    assert Bob.hey("This Isn't Shouting!") == "Whatever."
+  end
+
+  # @tag :pending
+  test "forceful question" do
+    assert Bob.hey("WHAT'S GOING ON?") == "Calm down, I know what I'm doing!"
+  end
+
+  # @tag :pending
+  test "asking in capitals" do
+    assert Bob.hey("THIS ISN'T SHOUTING?") == "Calm down, I know what I'm doing!"
+  end
+
+  # @tag :pending
+  test "shouting numbers" do
+    assert Bob.hey("1, 2, 3 GO!") == "Whoa, chill out!"
+  end
+
+  # @tag :pending
+  test "shouting with special characters" do
+    assert Bob.hey("ZOMG THE %^*@#$(*^ ZOMBIES ARE COMING!!11!!1!") == "Whoa, chill out!"
+  end
+
+  # @tag :pending
+  test "shouting with no exclamation mark" do
+    assert Bob.hey("I HATE THE DENTIST") == "Whoa, chill out!"
+  end
+
+  # @tag :pending
+  test "statement containing question mark" do
+    assert Bob.hey("Ending with ? means a question.") == "Whatever."
+  end
+
+  # @tag :pending
+  test "silence" do
+    assert Bob.hey("") == "Fine. Be that way!"
+  end
+
+  # @tag :pending
+  test "prolonged silence" do
+    assert Bob.hey("  ") == "Fine. Be that way!"
+  end
+
+  # @tag :pending
+  test "alternate silence" do
+    assert Bob.hey("\t\t\t\t\t\t\t\t\t\t") == "Fine. Be that way!"
+  end
+
+  # @tag :pending
+  test "only numbers" do
+    assert Bob.hey("1, 2, 3") == "Whatever."
+  end
+
+  # @tag :pending
+  test "multiple line question" do
+    assert Bob.hey("\nDoes this cryogenic chamber make me look fat?\nNo.") == "Whatever."
+  end
+
+  # @tag :pending
+  test "question with numbers" do
+    assert Bob.hey("4?") == "Sure."
+  end
+
+  # @tag :pending
+  test "non-letters with question" do
+    assert Bob.hey(":) ?") == "Sure."
+  end
+
+  # @tag :pending
+  test "prattling on" do
+    assert Bob.hey("Wait! Hang on. Are you going to be OK?") == "Sure."
+  end
+
+  # @tag :pending
+  test "starting with whitespace" do
+    assert Bob.hey("         hmmmmmmm...") == "Whatever."
+  end
+
+  # @tag :pending
+  test "ending with whitespace" do
+    assert Bob.hey("Okay if like my  spacebar  quite a bit?   ") == "Sure."
+  end
+
+  # @tag :pending
+  test "other whitespace" do
+    assert Bob.hey("\n\r \t") == "Fine. Be that way!"
+  end
+
+  # @tag :pending
+  test "non-question ending with whitespace" do
+    assert Bob.hey("This is a statement ending with whitespace     ") == "Whatever."
+  end
+
+  # @tag :pending
+  test "shouting in Russian" do
+    assert Bob.hey("УХОДИ") == "Whoa, chill out!"
+  end
+end
diff --git a/elixir/bob/test/test_helper.exs b/elixir/bob/test/test_helper.exs
new file mode 100644
index 0000000..35fc5bf
--- /dev/null
+++ b/elixir/bob/test/test_helper.exs
@@ -0,0 +1,2 @@
+ExUnit.start()
+ExUnit.configure(exclude: :pending, trace: true)