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I’m Allan Anndal, a senior software engineer with 20+ years of experience delivering scalable backend systems across the full SDLC. I specialize in building robust APIs, microservices, and event-driven architectures, and I enjoy using Ruby, JavaScript/TypeScript, Python, Go, PHP, and Elixir to turn complex requirements into maintainable solutions. I’m also hands-on with cloud and DevOps practices, including AWS (EC2, SQS, SNS, Lambda, S3, RDS, ECS), Docker, Kubernetes, and CI/CD pipelines. I work strongly with DDD, TDD/BDD, SOLID design principles, and agile/XP practices to ship high-quality features—whether it’s modernizing large Rails systems, integrating GraphQL/REST/gRPC services, or bringing LLM-powered capabilities into production.…I’m Allan Anndal, a senior software engineer with 20+ years of experience delivering scalable backend systems across the full SDLC. I specialize in building robust APIs, microservices, and event-driven architectures, and I enjoy using Ruby, JavaScript/TypeScript, Python, Go, PHP, and Elixir to turn complex requirements into maintainable solutions. I’m also hands-on with cloud and DevOps practices, including AWS (EC2, SQS, SNS, Lambda, S3, RDS, ECS), Docker, Kubernetes, and CI/CD pipelines. I work strongly with DDD, TDD/BDD, SOLID design principles, and agile/XP practices to ship high-quality features—whether it’s modernizing large Rails systems, integrating GraphQL/REST/gRPC services, or bringing LLM-powered capabilities into production.

Allan Anndal

Software Engineer, Back-End Developer, Web Developer, +2

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I’m Allan Anndal, a senior software engineer with 20+ years of experience delivering scalable backend systems across the full SDLC. I specialize in building robust APIs, microservices, and event-driven architectures, and I enjoy using Ruby, JavaScript/TypeScript, Python, Go, PHP, and Elixir to turn complex requirements into maintainable solutions. I’m also hands-on with cloud and DevOps practices, including AWS (EC2, SQS, SNS, Lambda, S3, RDS, ECS), Docker, Kubernetes, and CI/CD pipelines. I work strongly with DDD, TDD/BDD, SOLID design principles, and agile/XP practices to ship high-quality features—whether it’s modernizing large Rails systems, integrating GraphQL/REST/gRPC services, or bringing LLM-powered capabilities into production.…I’m Allan Anndal, a senior software engineer with 20+ years of experience delivering scalable backend systems across the full SDLC. I specialize in building robust APIs, microservices, and event-driven architectures, and I enjoy using Ruby, JavaScript/TypeScript, Python, Go, PHP, and Elixir to turn complex requirements into maintainable solutions. I’m also hands-on with cloud and DevOps practices, including AWS (EC2, SQS, SNS, Lambda, S3, RDS, ECS), Docker, Kubernetes, and CI/CD pipelines. I work strongly with DDD, TDD/BDD, SOLID design principles, and agile/XP practices to ship high-quality features—whether it’s modernizing large Rails systems, integrating GraphQL/REST/gRPC services, or bringing LLM-powered capabilities into production.

Available to hire

I’m Allan Anndal, a senior software engineer with 20+ years of experience delivering scalable backend systems across the full SDLC. I specialize in building robust APIs, microservices, and event-driven architectures, and I enjoy using Ruby, JavaScript/TypeScript, Python, Go, PHP, and Elixir to turn complex requirements into maintainable solutions.

I’m also hands-on with cloud and DevOps practices, including AWS (EC2, SQS, SNS, Lambda, S3, RDS, ECS), Docker, Kubernetes, and CI/CD pipelines. I work strongly with DDD, TDD/BDD, SOLID design principles, and agile/XP practices to ship high-quality features—whether it’s modernizing large Rails systems, integrating GraphQL/REST/gRPC services, or bringing LLM-powered capabilities into production.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Aragonese

Advanced

Work Experience

Senior Software Engineer at Decidr. AIPty Ltd

August 1, 2025 - Present

Built and operated AI-focused microservices across Ruby, Python, Elixir, and Go to support data enrichment, document processing, event streaming, and AI agent integrations. Implemented scalable backend systems using Kafka, ClickHouse, PostgreSQL, Redis, AWS Lambda, SQS, and Docker. Delivered LLM-powered features and integrations within a large monolith application supporting productivity workflows.

Senior Backend Developer at Rein t eractive Pty Ltd

August 1, 2022 - May 31, 2025

Developed features for an Innowell mental health platform using Ruby on Rails and GraphQL, improving test coverage and assessment functionality. Managed microservices for NIB’s insurance ecosystem, streamlining claims processes via AWS Lambda, SQS, EventBridge, DynamoDB, GraphQL APIs, and Informix. Led Rails upgrades from version 4 to 7 to improve performance and compatibility. Used RSpec and built reliable, production-focused backend services.

Senior Software Engineer at Oneflare Pty Ltd

October 1, 2016 - August 31, 2022

Built and maintained features for oneflare.com.au and wordofmouth.com.au using Ruby on Rails, React, and GraphQL. Configured CI/CD pipelines using Docker, Kubernetes, Drone, and CircleCI to optimize performance and identify bottlenecks. Served as a technical team lead, analyzing requirements, scoping epics, and assigning tasks during sprints. Contributed to Slack chatbot integration using Go, deploying to staging and an on-demand production-cloned Kubernetes cluster.

Senior Developer at Express Media Group/Outdoor Supa ntr e, Silverwater NSW

July 1, 2015 - October 31, 2016

Supported and customized 4wdsupatrne.c om.au using PHP, Magento, and Symfony on AWS. Developed Magento extensions and established CI environments with Jenkins, Selenium Grid, and Docker for automated testing and delivery.

Software Developer at Fairfax Media

November 1, 2012 - July 31, 2015

Developed classified sections for 200+ Fairfax Regional publication websites, integrating feeds for real estate, jobs, and cars using Ruby on Rails, Elasticsearch, and MySQL. Rebuilt a directory listing platform for 10,000+ domains, migrating from PHP/Sphinx to Ruby on Rails/Elasticsearch. Built RESTful APIs for buyandsell.com.au to support listing management and consumer applications.

Web Applications Developer at Linc Integrated

January 1, 2011 - November 30, 2012

Developed websites using Ruby on Rails, .NET, PHP, and CMS platforms including Kentico, Umbraco, and WordPress. Designed databases and customized open-source applications, providing technical support and hosting configuration advice.

Software Developer/System Administrator at Spectrum Data, Bentley

February 1, 2010 - January 31, 2011

Built web and desktop applications using .NET (VB, C#) and SQL Server. Provided IT support (Level 1–3), managed backups, Active Directory, and network performance reporting.

I.T Consultant/Programmer at Software Laboratories Inc. (on-site at Philip Morris Philippines, Intel Philippines)

April 1, 2008 - November 30, 2009

Developed and maintained applications for cigarette manufacturing operations, collaborating with business analysts for requirement gathering. Proposed process and tooling improvements for project management. Worked in an on-site environment supporting manufacturing technology needs.

Research and Development (R&D) - POS/Inventory System Developer at 8 Layer Technologies Inc., Pasig City

May 1, 2007 - May 31, 2008

Led development of a POS/inventory system and customized Linux-based open-source solutions. Enhanced CMS for company websites by translating client requirements into technical solutions.

Lead Developer (Co-Founder) at AleahSoft Solutions Inc., Lipa City

September 1, 2005 - May 31, 2007

Developed custom software solutions and led project teams. Worked on PHP and MySQL-based applications for business needs.

Senior Developer at Ecommsite Solution Inc., Quezon City

April 1, 2004 - January 31, 2005

Built web applications and APIs for e-commerce platforms using PHP and MySQL.

Programmer at Al Hamadi IT, Riyadh

February 1, 2002 - January 31, 2003

Developed web applications and supported IT operations using ASP and Microsoft SQL Server.

Web Applications Developer at II Asia Online (Philippines)

May 1, 2000 - October 31, 2001

Built web applications using ASP and PHP, working with databases including MySQL and Microsoft SQL Server and integrating with Oracle technologies.