diff --git a/API/alembic.ini b/API/alembic.ini
new file mode 100644
index 0000000..c208a98
--- /dev/null
+++ b/API/alembic.ini
@@ -0,0 +1,119 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+# Use forward slashes (/) also on windows to provide an os agnostic path
+script_location = app/database/migrations
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python>=3.9 or backports.zoneinfo library and tzdata library.
+# Any required deps can installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to app/database/migrations/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:app/database/migrations/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+# version_path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+version_path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the exec runner, execute a binary
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = %(here)s/.venv/bin/ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[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/API/app/database/migrations/README b/API/app/database/migrations/README
new file mode 100644
index 0000000..98e4f9c
--- /dev/null
+++ b/API/app/database/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/API/app/database/migrations/env.py b/API/app/database/migrations/env.py
new file mode 100644
index 0000000..33fa354
--- /dev/null
+++ b/API/app/database/migrations/env.py
@@ -0,0 +1,53 @@
+import asyncio
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import pool
+from sqlalchemy.ext.asyncio import create_async_engine
+
+from app.domain.models import Base
+from app.settings import settings
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def get_url():
+    return settings.DATABASE_URL
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online() -> None:
+    connectable = create_async_engine(get_url(), poolclass=pool.NullPool, future=True)
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+
+def do_run_migrations(connection):
+    context.configure(connection=connection, target_metadata=target_metadata)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def main():
+    await run_migrations_online()
+
+
+asyncio.run(main())
diff --git a/API/app/database/migrations/script.py.mako b/API/app/database/migrations/script.py.mako
new file mode 100644
index 0000000..480b130
--- /dev/null
+++ b/API/app/database/migrations/script.py.mako
@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}
diff --git a/API/app/domain/models/contest_carousel_photos.py b/API/app/domain/models/contest_carousel_photos.py
index e6e2243..e86b3cd 100644
--- a/API/app/domain/models/contest_carousel_photos.py
+++ b/API/app/domain/models/contest_carousel_photos.py
@@ -1,12 +1,15 @@
 from sqlalchemy import String, Column, Integer, ForeignKey
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
 
-class ContestCarouselPhotos(AdvancedBaseModel):
+class ContestCarouselPhoto(AdvancedBaseModel):
     __tablename__ = 'contest_carousel_photos'
 
     file_path = Column(String, nullable=False)
     number = Column(Integer, nullable=False)
 
     contest_id = Column(Integer, ForeignKey('contests.id'), nullable=False)
+
+    contest = relationship('Contest', back_populates='carousel_photos')
diff --git a/API/app/domain/models/contest_files.py b/API/app/domain/models/contest_files.py
index 680e3b9..e26eb58 100644
--- a/API/app/domain/models/contest_files.py
+++ b/API/app/domain/models/contest_files.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, String, ForeignKey, Integer
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -9,3 +10,5 @@ class ContestFile(AdvancedBaseModel):
     file_path = Column(String, nullable=False)
 
     contest_id = Column(Integer, ForeignKey('contests.id'), nullable=False)
+
+    contest = relationship("Contest", back_populates="files")
diff --git a/API/app/domain/models/contest_statuses.py b/API/app/domain/models/contest_statuses.py
index ad4b8bc..f155ec4 100644
--- a/API/app/domain/models/contest_statuses.py
+++ b/API/app/domain/models/contest_statuses.py
@@ -1,4 +1,5 @@
 from sqlalchemy import VARCHAR, Column
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -7,3 +8,5 @@ class ContestStatus(AdvancedBaseModel):
     __tablename__ = 'contest_statuses'
 
     title = Column(VARCHAR(150), unique=True, nullable=False)
+
+    contest = relationship("Contest", back_populates="status")
diff --git a/API/app/domain/models/contests.py b/API/app/domain/models/contests.py
index 70b488f..5de4ff1 100644
--- a/API/app/domain/models/contests.py
+++ b/API/app/domain/models/contests.py
@@ -1,4 +1,5 @@
 from sqlalchemy import VARCHAR, Column, String, ForeignKey, Integer, Boolean
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -15,3 +16,9 @@ class Contest(AdvancedBaseModel):
 
     project_id = Column(Integer, ForeignKey('projects.id'), nullable=False)
     status_id = Column(Integer, ForeignKey('contest_status.id'), nullable=False)
+
+    project = relationship('Project', back_populates='contests')
+    status = relationship('ContestStatus', back_populates='contests')
+
+    carousel_photos = relationship('ContestCarouselPhoto', back_populates='contest')
+    files = relationship('ContestFile', back_populates='contest')
diff --git a/API/app/domain/models/profiles.py b/API/app/domain/models/profiles.py
index c24102d..8a4fdec 100644
--- a/API/app/domain/models/profiles.py
+++ b/API/app/domain/models/profiles.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, VARCHAR, Date, ForeignKey, Integer
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -15,3 +16,8 @@ class Profile(AdvancedBaseModel):
 
     role_id = Column(Integer, ForeignKey('roles.id'), nullable=False)
     team_id = Column(Integer, ForeignKey('teams.id'), nullable=False)
+
+    role = relationship('Role', back_populates='profiles')
+    team = relationship('Team', back_populates='profiles')
+
+    user = relationship('User', back_populates='profile')
diff --git a/API/app/domain/models/project_files.py b/API/app/domain/models/project_files.py
index 50840c0..81e978c 100644
--- a/API/app/domain/models/project_files.py
+++ b/API/app/domain/models/project_files.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, String, Integer, ForeignKey
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -9,3 +10,5 @@ class ProjectFile(AdvancedBaseModel):
     file_path = Column(String, unique=True, nullable=False)
 
     project_id = Column(Integer, ForeignKey('projects.id'), nullable=False)
+
+    project = relationship("Project", back_populates="files")
diff --git a/API/app/domain/models/projects.py b/API/app/domain/models/projects.py
index f576df3..80ce895 100644
--- a/API/app/domain/models/projects.py
+++ b/API/app/domain/models/projects.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, VARCHAR, String
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -8,3 +9,6 @@ class Project(AdvancedBaseModel):
 
     description = Column(VARCHAR(150))
     repository_url = Column(String, nullable=False)
+
+    contest = relationship("Contest", back_populates="project")
+    files = relationship("ProjectFile", back_populates="project")
diff --git a/API/app/domain/models/roles.py b/API/app/domain/models/roles.py
index 7622841..9891a82 100644
--- a/API/app/domain/models/roles.py
+++ b/API/app/domain/models/roles.py
@@ -1,5 +1,6 @@
 from sqlalchemy import Column
 from sqlalchemy.dialects.mysql import VARCHAR
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -8,3 +9,5 @@ class Role(AdvancedBaseModel):
     __tablename__ = 'roles'
 
     title = Column(VARCHAR(150), unique=True, nullable=False)
+
+    profiles = relationship('Profile', back_populates='role')
diff --git a/API/app/domain/models/teams.py b/API/app/domain/models/teams.py
index 45970de..11d97f8 100644
--- a/API/app/domain/models/teams.py
+++ b/API/app/domain/models/teams.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, VARCHAR, String
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -9,4 +10,6 @@ class Team(AdvancedBaseModel):
     title = Column(VARCHAR(150), nullable=False)
     description = Column(VARCHAR(150))
     logo = Column(String)
-    git_url = Column(String)
\ No newline at end of file
+    git_url = Column(String)
+
+    profile = relationship("Profile", back_populates="team")
diff --git a/API/app/domain/models/users.py b/API/app/domain/models/users.py
index 3558db0..ec5a0b4 100644
--- a/API/app/domain/models/users.py
+++ b/API/app/domain/models/users.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, VARCHAR, ForeignKey, Integer
+from sqlalchemy.orm import relationship
 
 from app.domain.models.base import AdvancedBaseModel
 
@@ -10,3 +11,5 @@ class User(AdvancedBaseModel):
     password = Column(VARCHAR(150), nullable=False)
 
     profile_id = Column(Integer, ForeignKey('profiles.id'), nullable=False)
+
+    profile = relationship('Profile', back_populates='user')
diff --git a/API/app/settings.py b/API/app/settings.py
index e69de29..0929eab 100644
--- a/API/app/settings.py
+++ b/API/app/settings.py
@@ -0,0 +1,24 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    DATABASE_URL: str
+    LOG_LEVEL: str
+    LOG_FILE: str
+    SECRET_KEY: str
+    ALGORITHM: str
+    APP_PREFIX: str
+
+    class Config:
+        env_file = '.env'
+        env_file_encoding = 'utf-8'
+
+
+settings = Settings()
+
+
+def det_auth_data():
+    return {
+        'secret_key': settings.SECRET_KEY,
+        'algorithm': settings.ALGORITHM
+    }