diff --git a/backend/app/__init__.py b/backend/app/__init__.py
index 1037a27..242d6dc 100644
--- a/backend/app/__init__.py
+++ b/backend/app/__init__.py
@@ -30,6 +30,10 @@ def create_app(env: str = None) -> Flask:
         )
 
     _init_extensions(app)
+
+    # Importamos los modelos para que SQLAlchemy registre sus tablas en el metadata antes de que Alembic las lea durante la generación de migraciones
+    from app import models as _models  # noqa: F401
+
     _register_blueprints(app)
     _register_error_handlers(app)
     _register_health_check(app)
diff --git a/backend/migrations/.gitkeep b/backend/migrations/.gitkeep
deleted file mode 100644
index 5f28270..0000000
--- a/backend/migrations/.gitkeep
+++ /dev/null
@@ -1 +0,0 @@
-
\ No newline at end of file
diff --git a/backend/migrations/README b/backend/migrations/README
new file mode 100644
index 0000000..0e04844
--- /dev/null
+++ b/backend/migrations/README
@@ -0,0 +1 @@
+Single-database configuration for Flask.
diff --git a/backend/migrations/alembic.ini b/backend/migrations/alembic.ini
new file mode 100644
index 0000000..ec9d45c
--- /dev/null
+++ b/backend/migrations/alembic.ini
@@ -0,0 +1,50 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/backend/migrations/env.py b/backend/migrations/env.py
new file mode 100644
index 0000000..4c97092
--- /dev/null
+++ b/backend/migrations/env.py
@@ -0,0 +1,113 @@
+import logging
+from logging.config import fileConfig
+
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+
+def get_engine():
+    try:
+        # this works with Flask-SQLAlchemy<3 and Alchemical
+        return current_app.extensions['migrate'].db.get_engine()
+    except (TypeError, AttributeError):
+        # this works with Flask-SQLAlchemy>=3
+        return current_app.extensions['migrate'].db.engine
+
+
+def get_engine_url():
+    try:
+        return get_engine().url.render_as_string(hide_password=False).replace(
+            '%', '%%')
+    except AttributeError:
+        return str(get_engine().url).replace('%', '%%')
+
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option('sqlalchemy.url', get_engine_url())
+target_db = current_app.extensions['migrate'].db
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def get_metadata():
+    if hasattr(target_db, 'metadatas'):
+        return target_db.metadatas[None]
+    return target_db.metadata
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=get_metadata(), literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    conf_args = current_app.extensions['migrate'].configure_args
+    if conf_args.get("process_revision_directives") is None:
+        conf_args["process_revision_directives"] = process_revision_directives
+
+    connectable = get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=get_metadata(),
+            **conf_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/backend/migrations/script.py.mako b/backend/migrations/script.py.mako
new file mode 100644
index 0000000..2c01563
--- /dev/null
+++ b/backend/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}
diff --git a/backend/migrations/versions/9decfc36853f_initial_database_migration.py b/backend/migrations/versions/9decfc36853f_initial_database_migration.py
new file mode 100644
index 0000000..254c1d8
--- /dev/null
+++ b/backend/migrations/versions/9decfc36853f_initial_database_migration.py
@@ -0,0 +1,132 @@
+"""initial database migration
+
+Revision ID: 9decfc36853f
+Revises: Elias Ochoa
+Create Date: 2026-06-09 17:38:16 p.m.
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9decfc36853f'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('categories',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=50), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('cities',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=100), nullable=False),
+    sa.Column('state', sa.String(length=100), nullable=True),
+    sa.Column('country', sa.String(length=10), server_default='MX', nullable=True),
+    sa.Column('lat', sa.Numeric(precision=9, scale=6), nullable=True),
+    sa.Column('lon', sa.Numeric(precision=9, scale=6), nullable=True),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('users',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('email', sa.String(length=255), nullable=False),
+    sa.Column('first_name', sa.String(length=50), nullable=False),
+    sa.Column('last_name', sa.String(length=50), nullable=False),
+    sa.Column('password_hash', sa.String(length=255), nullable=False),
+    sa.Column('role', sa.String(length=20), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.CheckConstraint("role IN ('GUEST', 'REGISTERED', 'ADMIN')", name='chk_users_role'),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('email')
+    )
+    op.create_table('backups',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.Column('filename', sa.String(length=255), nullable=False),
+    sa.Column('storage_url', sa.String(length=500), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.Column('status', sa.String(length=20), nullable=False),
+    sa.CheckConstraint("status IN ('PENDING', 'COMPLETED', 'FAILED')", name='chk_backups_status'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('jobs',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('source', sa.String(length=50), nullable=False),
+    sa.Column('title', sa.String(length=255), nullable=False),
+    sa.Column('company', sa.String(length=255), nullable=True),
+    sa.Column('city_id', sa.Integer(), nullable=True),
+    sa.Column('salary_min', sa.Numeric(precision=10, scale=2), nullable=True),
+    sa.Column('salary_max', sa.Numeric(precision=10, scale=2), nullable=True),
+    sa.Column('raw_description', sa.Text(), nullable=False),
+    sa.Column('description_hash', sa.String(length=64), nullable=False),
+    sa.Column('processed', sa.Boolean(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.Column('updated_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['city_id'], ['cities.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('skills',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=100), nullable=False),
+    sa.Column('canonical_name', sa.String(length=100), nullable=False),
+    sa.Column('category_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['category_id'], ['categories.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('canonical_name')
+    )
+    op.create_table('job_skills',
+    sa.Column('job_id', sa.Integer(), nullable=False),
+    sa.Column('skill_id', sa.Integer(), nullable=False),
+    sa.Column('confidence_score', sa.Numeric(precision=4, scale=3), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], ),
+    sa.ForeignKeyConstraint(['skill_id'], ['skills.id'], ),
+    sa.PrimaryKeyConstraint('job_id', 'skill_id')
+    )
+    op.create_table('trend_snapshots',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('skill_id', sa.Integer(), nullable=False),
+    sa.Column('city_id', sa.Integer(), nullable=False),
+    sa.Column('date', sa.Date(), nullable=False),
+    sa.Column('demand_count', sa.Integer(), nullable=True),
+    sa.Column('growth_rate', sa.Numeric(precision=6, scale=2), nullable=True),
+    sa.Column('avg_salary', sa.Numeric(precision=10, scale=2), nullable=True),
+    sa.ForeignKeyConstraint(['city_id'], ['cities.id'], ),
+    sa.ForeignKeyConstraint(['skill_id'], ['skills.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('skill_id', 'city_id', 'date', name='uq_trend_snapshot_skill_city_date')
+    )
+    op.create_table('user_alerts',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=False),
+    sa.Column('skill_id', sa.Integer(), nullable=False),
+    sa.Column('threshold', sa.Integer(), nullable=False),
+    sa.Column('active', sa.Boolean(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['skill_id'], ['skills.id'], ),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('user_alerts')
+    op.drop_table('trend_snapshots')
+    op.drop_table('job_skills')
+    op.drop_table('skills')
+    op.drop_table('jobs')
+    op.drop_table('backups')
+    op.drop_table('users')
+    op.drop_table('cities')
+    op.drop_table('categories')
+    # ### end Alembic commands ###