abdul mateen

forward deployed engineer  ·  dublin

form CE-03  ·  credentials & licences

Certifications

Certificates earned, each with its issuer and credential.

AWS Cloud Practitioner

Udemy

no. CE-0001
issued
Issued Feb 2025
issuer
Udemy

A foundational course on AWS: the core service families, the shared responsibility model, regions and availability zones, IAM, and how cloud pricing and billing actually work. Covered containerisation alongside it, which is the piece that carried over most directly into my own work — the microservices projects on this site are Docker-composed, and this is where that grounding came from.

  • Amazon Web Services (AWS)
  • Docker
  • Cloud Computing
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issued

Certified Software Engineer

HackerRank

no. CE-0002
issued
Issued Feb 2025
issuer
HackerRank
credential
089de1e27be4

HackerRank’s software engineer certification, assessed end to end rather than by language: problem decomposition, data structures and algorithms under time pressure, and building a working solution against a specification. The broader companion to the Java certificate — that one tests the language, this one tests what you do with it.

  • Spring Framework
  • Problem Solving
  • Data Structures & Algorithms
  • Software Engineering
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issued

AWS Educate: Getting Started with Compute

Amazon Web Services (AWS)

no. CE-0003
issued
Issued Mar 2025
issuer
Amazon Web Services (AWS)

An AWS Educate module covering the compute side of the platform: EC2 instance types and sizing, the trade-off between provisioning a server and running code without one, and where managed compute fits against self-managed instances. Taken alongside the Cloud Practitioner material as the hands-on counterpart to it — the same services, approached from the console rather than from an exam objective.

  • Amazon Web Services (AWS)
  • EC2
  • Cloud Computing
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issued

SQL (Advanced)

HackerRank

no. CE-0004
issued
Issued Mar 2023
issuer
HackerRank
credential
a06fe7f258b8

The advanced tier of HackerRank’s SQL certification: window functions, common table expressions, correlated subqueries, and the kind of multi-join aggregation that has to be reasoned about rather than pattern-matched. Machine-graded against a live database, so a query either returns the right rows or it does not.

  • SQL
  • Database Management
  • Query Optimisation
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issued

SQL (Intermediate)

HackerRank

no. CE-0005
issued
Issued Feb 2023
issuer
HackerRank
credential
ae213203b033

The intermediate tier, taken a month before the advanced one: joins across several tables, aggregation and grouping, subqueries, and set operations. Foundational work that paid off directly in the Oracle FLEXCUBE migration, where reading someone else’s schema quickly mattered more than writing new ones.

  • SQL
  • Database Management
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issued

Java

HackerRank

no. CE-0006
issued
Issued Feb 2025
issuer
HackerRank
credential
5d14f77ea383

HackerRank’s Java role certification: a timed, machine-graded assessment of the language itself — collections, generics, exception handling, and object-oriented design — rather than a course with a certificate at the end. Sat while working day to day in Spring Boot, so it doubled as a check that the fundamentals underneath the framework were still sharp.

  • Java
  • Spring Framework
  • Object-Oriented Programming
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issued