diff --git a/.idea/dictionaries/dictionary.xml b/.idea/dictionaries/dictionary.xml
index a83f77b..60051ca 100644
--- a/.idea/dictionaries/dictionary.xml
+++ b/.idea/dictionaries/dictionary.xml
@@ -1,7 +1,9 @@
 <component name="ProjectDictionaryState">
   <dictionary name="dictionary">
     <words>
+      <w>freezed</w>
       <w>hackathon</w>
+      <w>weakers</w>
     </words>
   </dictionary>
 </component>
\ No newline at end of file
diff --git a/lib/model/technical_stack/language.dart b/lib/model/technical_stack/language.dart
new file mode 100644
index 0000000..2b0493b
--- /dev/null
+++ b/lib/model/technical_stack/language.dart
@@ -0,0 +1,5 @@
+// TODO: 言語増やす
+enum Language {
+  Swift,
+  Kotlin,
+}
diff --git a/lib/model/technical_stack/proficiency.dart b/lib/model/technical_stack/proficiency.dart
new file mode 100644
index 0000000..3a71cc6
--- /dev/null
+++ b/lib/model/technical_stack/proficiency.dart
@@ -0,0 +1,9 @@
+// TODO: できるできないとかを増やす
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+enum Proficiency {
+  @JsonValue('GOOD')
+  Good,
+  @JsonValue('BAD')
+  Bad
+}
diff --git a/lib/model/technical_stack/stack.dart b/lib/model/technical_stack/stack.dart
new file mode 100644
index 0000000..217d4b4
--- /dev/null
+++ b/lib/model/technical_stack/stack.dart
@@ -0,0 +1,11 @@
+// TODO: 増やす
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+enum Stack {
+  @JsonValue('IOS')
+  iOS,
+  @JsonValue('ANDROID')
+  Android,
+  @JsonValue('Serverside')
+  Serverside,
+}
diff --git a/lib/model/technical_stack/technical_stack.dart b/lib/model/technical_stack/technical_stack.dart
new file mode 100644
index 0000000..b74ae14
--- /dev/null
+++ b/lib/model/technical_stack/technical_stack.dart
@@ -0,0 +1,22 @@
+import 'package:flutter/foundation.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:morning_weakers/model/technical_stack/language.dart';
+import 'package:morning_weakers/model/technical_stack/proficiency.dart';
+import 'package:morning_weakers/model/technical_stack/stack.dart';
+
+part 'technical_stack.freezed.dart';
+
+part 'technical_stack.g.dart';
+
+@freezed
+abstract class TechnicalStack with _$TechnicalStack {
+  const factory TechnicalStack({
+    @required String id,
+    @required Stack stack,
+    List<Language> language,
+    @required Proficiency proficiency,
+    int priority,
+  }) = _TechnicalStack;
+
+  factory TechnicalStack.fromJson(Map<String, dynamic> json) => _$TechnicalStackFromJson(json);
+}
diff --git a/lib/model/technical_stack/technical_stack.freezed.dart b/lib/model/technical_stack/technical_stack.freezed.dart
new file mode 100644
index 0000000..ac936bd
--- /dev/null
+++ b/lib/model/technical_stack/technical_stack.freezed.dart
@@ -0,0 +1,240 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named
+
+part of 'technical_stack.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+TechnicalStack _$TechnicalStackFromJson(Map<String, dynamic> json) {
+  return _TechnicalStack.fromJson(json);
+}
+
+class _$TechnicalStackTearOff {
+  const _$TechnicalStackTearOff();
+
+  _TechnicalStack call(
+      {@required String id,
+      @required Stack stack,
+      List<Language> language,
+      @required Proficiency proficiency,
+      int priority}) {
+    return _TechnicalStack(
+      id: id,
+      stack: stack,
+      language: language,
+      proficiency: proficiency,
+      priority: priority,
+    );
+  }
+}
+
+// ignore: unused_element
+const $TechnicalStack = _$TechnicalStackTearOff();
+
+mixin _$TechnicalStack {
+  String get id;
+  Stack get stack;
+  List<Language> get language;
+  Proficiency get proficiency;
+  int get priority;
+
+  Map<String, dynamic> toJson();
+  $TechnicalStackCopyWith<TechnicalStack> get copyWith;
+}
+
+abstract class $TechnicalStackCopyWith<$Res> {
+  factory $TechnicalStackCopyWith(
+          TechnicalStack value, $Res Function(TechnicalStack) then) =
+      _$TechnicalStackCopyWithImpl<$Res>;
+  $Res call(
+      {String id,
+      Stack stack,
+      List<Language> language,
+      Proficiency proficiency,
+      int priority});
+}
+
+class _$TechnicalStackCopyWithImpl<$Res>
+    implements $TechnicalStackCopyWith<$Res> {
+  _$TechnicalStackCopyWithImpl(this._value, this._then);
+
+  final TechnicalStack _value;
+  // ignore: unused_field
+  final $Res Function(TechnicalStack) _then;
+
+  @override
+  $Res call({
+    Object id = freezed,
+    Object stack = freezed,
+    Object language = freezed,
+    Object proficiency = freezed,
+    Object priority = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: id == freezed ? _value.id : id as String,
+      stack: stack == freezed ? _value.stack : stack as Stack,
+      language:
+          language == freezed ? _value.language : language as List<Language>,
+      proficiency: proficiency == freezed
+          ? _value.proficiency
+          : proficiency as Proficiency,
+      priority: priority == freezed ? _value.priority : priority as int,
+    ));
+  }
+}
+
+abstract class _$TechnicalStackCopyWith<$Res>
+    implements $TechnicalStackCopyWith<$Res> {
+  factory _$TechnicalStackCopyWith(
+          _TechnicalStack value, $Res Function(_TechnicalStack) then) =
+      __$TechnicalStackCopyWithImpl<$Res>;
+  @override
+  $Res call(
+      {String id,
+      Stack stack,
+      List<Language> language,
+      Proficiency proficiency,
+      int priority});
+}
+
+class __$TechnicalStackCopyWithImpl<$Res>
+    extends _$TechnicalStackCopyWithImpl<$Res>
+    implements _$TechnicalStackCopyWith<$Res> {
+  __$TechnicalStackCopyWithImpl(
+      _TechnicalStack _value, $Res Function(_TechnicalStack) _then)
+      : super(_value, (v) => _then(v as _TechnicalStack));
+
+  @override
+  _TechnicalStack get _value => super._value as _TechnicalStack;
+
+  @override
+  $Res call({
+    Object id = freezed,
+    Object stack = freezed,
+    Object language = freezed,
+    Object proficiency = freezed,
+    Object priority = freezed,
+  }) {
+    return _then(_TechnicalStack(
+      id: id == freezed ? _value.id : id as String,
+      stack: stack == freezed ? _value.stack : stack as Stack,
+      language:
+          language == freezed ? _value.language : language as List<Language>,
+      proficiency: proficiency == freezed
+          ? _value.proficiency
+          : proficiency as Proficiency,
+      priority: priority == freezed ? _value.priority : priority as int,
+    ));
+  }
+}
+
+@JsonSerializable()
+class _$_TechnicalStack
+    with DiagnosticableTreeMixin
+    implements _TechnicalStack {
+  const _$_TechnicalStack(
+      {@required this.id,
+      @required this.stack,
+      this.language,
+      @required this.proficiency,
+      this.priority})
+      : assert(id != null),
+        assert(stack != null),
+        assert(proficiency != null);
+
+  factory _$_TechnicalStack.fromJson(Map<String, dynamic> json) =>
+      _$_$_TechnicalStackFromJson(json);
+
+  @override
+  final String id;
+  @override
+  final Stack stack;
+  @override
+  final List<Language> language;
+  @override
+  final Proficiency proficiency;
+  @override
+  final int priority;
+
+  @override
+  String toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) {
+    return 'TechnicalStack(id: $id, stack: $stack, language: $language, proficiency: $proficiency, priority: $priority)';
+  }
+
+  @override
+  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+    super.debugFillProperties(properties);
+    properties
+      ..add(DiagnosticsProperty('type', 'TechnicalStack'))
+      ..add(DiagnosticsProperty('id', id))
+      ..add(DiagnosticsProperty('stack', stack))
+      ..add(DiagnosticsProperty('language', language))
+      ..add(DiagnosticsProperty('proficiency', proficiency))
+      ..add(DiagnosticsProperty('priority', priority));
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other is _TechnicalStack &&
+            (identical(other.id, id) ||
+                const DeepCollectionEquality().equals(other.id, id)) &&
+            (identical(other.stack, stack) ||
+                const DeepCollectionEquality().equals(other.stack, stack)) &&
+            (identical(other.language, language) ||
+                const DeepCollectionEquality()
+                    .equals(other.language, language)) &&
+            (identical(other.proficiency, proficiency) ||
+                const DeepCollectionEquality()
+                    .equals(other.proficiency, proficiency)) &&
+            (identical(other.priority, priority) ||
+                const DeepCollectionEquality()
+                    .equals(other.priority, priority)));
+  }
+
+  @override
+  int get hashCode =>
+      runtimeType.hashCode ^
+      const DeepCollectionEquality().hash(id) ^
+      const DeepCollectionEquality().hash(stack) ^
+      const DeepCollectionEquality().hash(language) ^
+      const DeepCollectionEquality().hash(proficiency) ^
+      const DeepCollectionEquality().hash(priority);
+
+  @override
+  _$TechnicalStackCopyWith<_TechnicalStack> get copyWith =>
+      __$TechnicalStackCopyWithImpl<_TechnicalStack>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$_$_TechnicalStackToJson(this);
+  }
+}
+
+abstract class _TechnicalStack implements TechnicalStack {
+  const factory _TechnicalStack(
+      {@required String id,
+      @required Stack stack,
+      List<Language> language,
+      @required Proficiency proficiency,
+      int priority}) = _$_TechnicalStack;
+
+  factory _TechnicalStack.fromJson(Map<String, dynamic> json) =
+      _$_TechnicalStack.fromJson;
+
+  @override
+  String get id;
+  @override
+  Stack get stack;
+  @override
+  List<Language> get language;
+  @override
+  Proficiency get proficiency;
+  @override
+  int get priority;
+  @override
+  _$TechnicalStackCopyWith<_TechnicalStack> get copyWith;
+}
diff --git a/lib/model/technical_stack/technical_stack.g.dart b/lib/model/technical_stack/technical_stack.g.dart
new file mode 100644
index 0000000..e617f89
--- /dev/null
+++ b/lib/model/technical_stack/technical_stack.g.dart
@@ -0,0 +1,77 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'technical_stack.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$_TechnicalStack _$_$_TechnicalStackFromJson(Map<String, dynamic> json) {
+  return _$_TechnicalStack(
+    id: json['id'] as String,
+    stack: _$enumDecodeNullable(_$StackEnumMap, json['stack']),
+    language: (json['language'] as List)
+        ?.map((e) => _$enumDecodeNullable(_$LanguageEnumMap, e))
+        ?.toList(),
+    proficiency:
+        _$enumDecodeNullable(_$ProficiencyEnumMap, json['proficiency']),
+    priority: json['priority'] as int,
+  );
+}
+
+Map<String, dynamic> _$_$_TechnicalStackToJson(_$_TechnicalStack instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'stack': _$StackEnumMap[instance.stack],
+      'language': instance.language?.map((e) => _$LanguageEnumMap[e])?.toList(),
+      'proficiency': _$ProficiencyEnumMap[instance.proficiency],
+      'priority': instance.priority,
+    };
+
+T _$enumDecode<T>(
+  Map<T, dynamic> enumValues,
+  dynamic source, {
+  T unknownValue,
+}) {
+  if (source == null) {
+    throw ArgumentError('A value must be provided. Supported values: '
+        '${enumValues.values.join(', ')}');
+  }
+
+  final value = enumValues.entries
+      .singleWhere((e) => e.value == source, orElse: () => null)
+      ?.key;
+
+  if (value == null && unknownValue == null) {
+    throw ArgumentError('`$source` is not one of the supported values: '
+        '${enumValues.values.join(', ')}');
+  }
+  return value ?? unknownValue;
+}
+
+T _$enumDecodeNullable<T>(
+  Map<T, dynamic> enumValues,
+  dynamic source, {
+  T unknownValue,
+}) {
+  if (source == null) {
+    return null;
+  }
+  return _$enumDecode<T>(enumValues, source, unknownValue: unknownValue);
+}
+
+const _$StackEnumMap = {
+  Stack.iOS: 'iOS',
+  Stack.Android: 'Android',
+  Stack.Serverside: 'Serverside',
+};
+
+const _$LanguageEnumMap = {
+  Language.Swift: 'Swift',
+  Language.Kotlin: 'Kotlin',
+};
+
+const _$ProficiencyEnumMap = {
+  Proficiency.Good: 'Good',
+  Proficiency.Bad: 'Bad',
+};