Bâgu Alexandru Bogdan

elixir.ex - Alexandru Bogdan

elixir.ex

Explorer

defmodule MyApp.User do
  use Ecto.Schema
  import Ecto.Changeset

  schema "users" do
    field :name, :string
    field :email, :string
    field :age, :integer
    field :active, :boolean, default: true

    timestamps()
  end

  @doc """
  Validates and casts user data with Ecto changesets.
  Ensures data integrity before database operations.
  """
  def changeset(user, attrs) do
    user
    |> cast(attrs, [:name, :email, :age, :active])
    |> validate_required([:name, :email])
    |> validate_format(:email, ~r/@/)
    |> validate_number(:age, greater_than: 0, less_than: 150)
    |> validate_length(:name, min: 2, max: 100)
    |> unique_constraint(:email)
  end

  @doc """
  Create a new user with validated data
  """
  def create_user(attrs) do
    %__MODULE__{}
    |> changeset(attrs)
    |> MyApp.Repo.insert()
  end
end

Elixir UTF-8 LF

WHO AM I

Software Engineer from Romania with deep passion for programming and creating smart, maintainable distributed applications. I focus on performance while constantly striving to enhance efficiency and simplify complex systems.

With deep passion for thoughtful architecture—from domain-driven approaches that align code with business logic, to layered designs that separate concerns cleanly, to distributed systems with seamless communication. I believe the best software feels effortless to use and maintain.

CREATIVE

Programming can be fun and is ultimately a creative art. I like creating applications out of nothing using rapid development tools like Elixir and Ecto.

SELF-MOTIVATED

Even if programming is more about fixing than it is creating, I always feel a burning desire to improve, rewrite and do things better.

SOLUTIONS

Approach each task knowing there is more than one solution. This will help you develop skills used to solve problems, improve or rewrite code.

Professional Timeline

Work hard in silence, let success be your noise

proSapient

June 2025 - Present

[Remote] Senior Software Engineer - Elixir / Phoenix

ProSapient leverages AI-powered search and expert intelligence on demand to rapidly connect clients with top-industry experts, delivering >99% accurate transcripts and seamless insights to help make better decisions.

Key Achievements:

Architected high-performance call log filtering system using PostgreSQL fuzzy search and optimized indexing
Led email infrastructure migration from Mailgun to Amazon SES with compliance-focused workflows
Developed APIs for client surveys, transcript management, and secure third-party integrations
Enhanced CRM operations by implementing granular filtering and seniority mapping for improved reporting
Executed database schema migrations and implemented automated maintenance scripts for data cleanup

Elixir Phoenix GraphQL PostgreSQL Datadog Grafana Code Refactoring

Yolo Group

May 2024 - May 2025

[Remote] Technical Team Lead / Senior Software Engineer - Elixir / Phoenix

Yolo Group is a global tech company pioneering in gaming, fintech, and blockchain, known for brands like Bitcasino.io and Sportsbet.io.

Key Achievements:

Architected and implemented multi-tenancy support in the lab_game microservice, enabling the platform to serve content from a unified codebase
Designed intelligent site-specific caching mechanisms using Cachex to optimize configuration retrieval
Spearheaded development of game inventory features including bulk site-game updates and RTP caching
Optimized database query performance by implementing replica usage for heavy aggregation operations
Extended Protocol Buffers definitions to support new features including demo sessions and bulk configuration updates

Elixir Phoenix gRPC Protocol Buffers PostgreSQL Microservices Datadog Code Refactoring

zenloop

May 2021 - March 2024

[Remote] Senior Software Engineer - Elixir / Phoenix

Zenloop is an integrated experience management platform based on the Net Promoter Score®. The SaaS solution automatically collects customer feedback, analyzes and derives customized measures.

Key Achievements:

Led a team of two developers to expand authorization capabilities by implementing custom role definitions
Spearheaded migration of authentication system to Auth0, setting new security standards
Increased test code coverage from 65% to 92% and convinced team to adopt Test-Driven Development (TDD)
Improved database query performance through table normalization, building projections, and optimizing blob from tables/indexes
Extended filtering of customer answers by incorporating relevant answer properties

Elixir Phoenix PostgreSQL Elasticsearch RabbitMQ AWS Auth0 OAuth2 SAML 2.0 SendGrid REST APIs

Intersoft Europe

October 2018 - April 2021

[Remote] Senior Software Engineer - Elixir / Phoenix / React

INTERSOFT® is a digital transformation partner that helps solve customer experience and customer care challenges with experienced consultants and enterprise solutions.

Key Achievements:

Upgraded internal authentication system by integrating Keycloak
Expanded functionality of dynamic survey forms by introducing new input types and deriving dynamic schemas
Spearheaded development of 80% of the admin interface from scratch using React, Redux Thunk, and React Router
Delivered Survey Flow module that orchestrates actions triggered after survey answers are submitted
Contributed to application architecture design by adopting a modular approach with multiple contexts

Elixir Phoenix React.js Redux PostgreSQL GraphQL REST APIs OAuth Microservices

eMAG

April 2015 - September 2018

PHP Developer

eMAG is one of the largest e-commerce platforms in Romania, with millions of products available from both local and international brands.

PHP MySQL Domain-Driven Design Memcached RabbitMQ Gearman Varnish Nginx REST APIs Microservices

Cognizant Softvision

October 2014 - March 2015

Full Stack Developer

Softvision is a big outsourcing IT company which creates impactful digital products and solutions for consumers.

Angular 1.3 Node.js JavaScript jQuery Bootstrap REST APIs Swagger API

GoDaddy (Host Europe Group)

September 2012 - September 2014

Perl Developer

Host Europe Group, now part of GoDaddy, provided domain registration, mass hosting, customized managed hosting, and cloud hosting services.

Key Achievements:

Implemented ability to release and transfer domains, enhancing user flexibility and control
Conducted complete refactoring of the domain API client from Donhost.co.uk, optimizing performance
Constructed integration of the gTLD portal with the Webfusion UK website from the ground up
Successfully integrated OAuth with existing authentication system

Perl Catalyst Framework MySQL Apache Memcached REST APIs OAuth JSON-RPC

streamWIDE

June 2012 - August 2012

PHP Developer

Streamwide transforms digital communications, serving administrations, businesses, and over 130 million users in the telecom sector worldwide.

Key Achievements:

Elevated the XMLRPC Server/Client library by introducing support for multipart messages
Ensured proper functioning of the SMS gateway through creation of comprehensive unit tests
Authored comprehensive documentation to empower users in fully utilizing SMS features

PHP Zend Framework MySQL REST Git

Webfusion

May 2011 - April 2012

Perl Developer

Webfusion is one of the UK's leading web hosting groups, offering cost-effective, feature-rich hosting packages. Now part of GoDaddy EMEA.

Key Achievements:

Successfully implemented a comprehensive voucher system across all brands
Improved loading times by strategically incorporating memcached where needed
Modified the provisioning system tool to automatically identify failed baskets
Refactored and fixed bundle promotions, elevating their functionality
Enhanced the admin order interface for improved usability and efficiency

Perl Catalyst Framework MySQL Apache Memcached REST APIs OAuth SOAP

Projects

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Create signed URLs for Google Cloud Storage with time-limited secure access

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cacheable

Decorate your functions with customizable cache

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mazex

Generate mazes using 7 different algorithms and render them as PNG images

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