Open to software engineering roles · Dublin, Ireland · Stamp 1G · valid to Sep 2027

Rohan Handore

I keep a tier-1 payments estate running, and write the Python that automates the boring parts. On-call owner for critical, customer-facing services, with three years of teaching engineering fundamentals behind that.

Download CV [email protected]
Now
App Ops Engineer
Global Payments, Dublin
Focus
Production support, incident response, automation
Stack
Python, Bash, SQL, AWS, Kibana, Linux
Studied
MSc Big Data & Analytics, Griffith College Dublin

About

App ops engineer who writes code

I work in a tier-1 payments estate: monitoring, troubleshooting and availability of critical, customer-facing applications, including partner services. I am one of the on-call owners on a 24x7 rotation, so I am the person who reads the logs, isolates the fault, and drives the fix with development and infrastructure teams when something breaks at an inconvenient hour.

The part I care about is what happens after the incident. Every repeat problem is a script waiting to be written, so I automate the routine work with Python and Bash, validate every fix outside production first, and write the runbook so the next event is shorter.

Before this I taught: three years of lecturing and training on data structures, algorithms and system design fundamentals, at colleges and at TechnoKraft. It is where I learned to explain hard things plainly, which turns out to be most of what good incident communication is.

Email [email protected]
Phone +353 89 943 5478
Location Dublin, Ireland
Right to work Stamp 1G, valid to September 2027; eligible for the Critical Skills Employment Permit
Languages English, Hindi, Marathi

What I work with

Operations

Incident response, application and network health checks, release management, ITIL-aligned change, Kibana, AWS CloudWatch, Linux administration

Languages

Python, Bash, SQL (PostgreSQL), JavaScript, Java, HTML and CSS, PHP

Engineering

REST APIs, automation and scripting, testing, code review, documentation, data modelling, Git workflows

Also

Teaching and mentoring, stakeholder communication, writing runbooks people actually follow

The periodic table of what I work with

The same list the CV carries, arranged so it can be read in one pass. Colours group the themes: reliability, cloud, observability, data, languages, delivery.

  • SLOService level objective
  • SLIService level indicator
  • EBError budget
  • OnCOn-call rotation
  • RBRunbooks
  • IRIncident response
  • RCARoot cause analysis
  • AWSAmazon Web Services
  • K8sKubernetes
  • TfTerraform
  • AnsAnsible
  • GitOpsGitOps
  • DkrDocker
  • LinLinux administration
  • PrmPrometheus
  • GrfGrafana
  • CWCloudWatch
  • SplkSplunk
  • KibKibana
  • APMAPM and telemetry
  • DDDatadog
  • SQLSQL
  • PgPostgreSQL
  • MyMySQL
  • MgMongoDB
  • TuneQuery tuning
  • PipeData pipelines
  • PyPython
  • BashShell scripting
  • JSJavaScript
  • PHPPHP
  • JavaJava
  • GoGo
  • WebHTML and CSS
  • GitGit and GitHub
  • JnkJenkins
  • GHAGitHub Actions
  • ArgoArgo
  • CI/CDRelease and rollback

Reliability Cloud and infrastructure Observability Data Languages Delivery

Milestones

  • Impact 30%

    Lower mean time to resolution

    Automated the routine operational work at TechnoKraft: Python and Bash for log parsing, health checks and data fixes, so recurring problems stopped being manual.

  • Certification

    Google Professional Data Engineer

    Cloud data engineering, held alongside AWS Solutions Architect foundations training. Next on the list is the AWS certification.

  • Education 70.5%

    MSc Big Data Management and Analytics

    Griffith College Dublin. Distributed systems, cloud architecture, database systems and data pipelines, delivered through team projects.

  • Reliability

    SLIs, SLOs and error budgets in production

    Designed and implemented for the services my team owns, and used every week to decide what gets fixed first.

  • Ownership

    24x7 on-call on a tier-1 payments estate

    One of the on-call engineers for critical, customer-facing payment applications, weekends and holidays included.

  • Teaching

    Three years teaching engineering fundamentals

    Data structures, algorithms and system design at colleges and at TechnoKraft. It is where the plain-English incident updates come from.

  • Delivery 3 weeks

    Client site rebuilt and shipped

    Nifty Driver rebuilt end to end and deployed to the Artemee production server inside a three week deadline.

  • Education 82%

    BSc Computer Science

    Savitribai Phule Pune University. Computer networks, operating systems, database systems and software engineering.

  • Observability

    Monitoring where there was none

    Built AWS CloudWatch dashboards and alarms, set the thresholds and wrote the runbooks that cut escalations.

Experience

Apr 2026 – present Global Payments

App Ops Engineer (on-call)

Global Payments · Dublin, Ireland

  • Own monitoring, troubleshooting and availability of critical, customer-facing payment applications in a tier-1 estate, including partner services, as one of the on-call owners on a 24x7 rotation.
  • Handle incident response end to end: read application and system logs in Kibana and AWS CloudWatch, isolate the fault, drive the fix with development and infrastructure stakeholders, and write the runbooks that shorten the next event.
  • Run application and network health checks, release management and ITIL-aligned change, with an audit trail for every action.
  • Automate repetitive operational work with Python and Bash: log parsing, health checks, scheduled validation and data fixes, validating each fix outside production first.

LinuxAWS CloudWatchKibanaSQLREST APIsPythonBash

Feb 2026 – present Artemee Web Services

Full Stack Web Developer (contract)

Artemee Web Services · Dublin, Ireland

  • Build web applications, product features and internal tools end to end on a freelance contract for a Dublin agency, from requirements through to production deployment.
  • Turn ambiguous requirements into clear technical designs, implement them, and test each change before release, working in JavaScript, jQuery, HTML, CSS, PHP and Python.
  • Rebuilt the Nifty Driver client site to a three-week deadline and deployed it to the production server, covering layout, responsive behaviour and content structure.
  • Work inside collaborative codebases across multi-person projects: lead small projects independently, contribute to larger ones alongside peers, and write the documentation and checklists each project runs on.

JavaScriptPHPPythonHTMLCSSjQuery

Mar 2023 – Jan 2024 College workshops

Guest Lecturer / Technical Instructor

Colleges and workshops · India

  • Delivered lectures and live coding sessions on data structures and algorithms: arrays and strings, recursion, hashing, stacks and queues, linked lists, trees, heaps, graphs, dynamic programming, greedy algorithms, and time and space complexity.
  • Taught system design fundamentals: requirements, API design, data modelling, caching, replication, queues, scalability trade-offs, and observability.
  • Wrote practical assignments built around test-case design, edge cases and debugging discipline.

PythonJavaGitSQLLinux

Dec 2022 – Jan 2024 TechnoKraft

Software Engineering Trainer

TechnoKraft Training and Solutions · Nashik, India

  • Designed and delivered curriculum for early-career engineers, focused on maintainable code, debugging discipline and professional engineering habits.
  • Built structured learning plans and practical labs reinforcing clean APIs, data modelling and production-style problem decomposition.
  • Ran recurring sessions, tracked progress and gave actionable feedback.

PythonJavaData StructuresSystem Design

Jun 2022 – Aug 2022 Eluminus Technologies

Software Engineering Intern

Eluminus Technologies · Nashik, India

  • Assisted engineers with implementation tasks, bug fixes and code reviews, learning professional workflows and delivery expectations.
  • Sharpened engineering fundamentals: Git branching, readable commits, and basic testing with reproducible steps.

JavaPythonSQLGit

CV

Download PDF Open in browser

One page, no fluff. The PDF matches what is on this site and is updated whenever the work changes.

Education

MSc Big Data Management and Analytics (70.5%)

Griffith College Dublin · Dublin, Ireland

Data Structures and Algorithms, Software Engineering, Database Systems, Distributed Systems, Big Data Management, Applied Statistics

BSc Computer Science (82%)

Savitribai Phule Pune University · India

Data Structures and Algorithms, Operating Systems, Database Systems, Computer Networks, Software Engineering

Certification

Google Professional Data Engineer

Skills

Python Bash SQL PostgreSQL Linux AWS CloudWatch Kibana REST APIs JavaScript Java Git Testing Automation Incident response Code review Documentation

Languages

EnglishHindiMarathi

Selected work

Things I have built, with the code or a live version attached. If a link is not here, the code is private or client-owned and I can walk through it instead.

FitTrack — workout tracker

A MERN-stack fitness tracker: log workouts, track progress, review history. Built as a full-stack application with authentication, a REST API and a React front end, deployed to Vercel.

Live demo Code

MERN · JavaScript

Jarvis — real-time voice assistant

A voice-enabled assistant built on the OpenAI API: speech in, spoken answer out, with the conversational loop handled client-side. The project that made me comfortable with API integration, async calls and error handling in Python.

Code

Python · OpenAI API

Automated trading strategy and runner

A mean-reversion strategy driven through the Angel One trading API, with deterministic strategy evaluation, scheduled runs and logging. Strategies run against simulated data first, so logic and error handling are proven before anything touches real money.

Code

Python · REST APIs

Policy proxy for LLM traffic

A proxy layer that intercepts prompts and responses so policy can be evaluated and untrusted input handled safely. Policies are modular, so rules change without touching the core, and behaviour changes are validated with repeatable regression prompts.

Python · private

This site

Hand-built static site: no framework, no tracking, no third-party requests. Self-hosted subset fonts, icons inlined as SVG masks, and light and dark themes driven by your system preference. Rebuilt in October 2026 to cut page weight and fix readability.

Code

HTML · CSS · GitHub Pages

Desktop Cleaner Script

A small Windows utility that sorts files into folders by extension, so a desktop stays usable. Twenty stars on GitHub, which is more traction than anything else I have published.

Code

Windows · Batch

Everything else on GitHub

Writing

Occasional notes on engineering practice, mostly written up from things that bit me at work.

Building maintainable code: naming, structure, documentation

REST API design: principles and patterns

Testing strategies: unit, integration and beyond

Automation in software development

System design fundamentals

From intern to software engineer: my journey

Interview prep

Behavioural interview guide

My own notes on answering behavioural questions with the STAR structure, written while preparing for interviews and kept here because people kept asking for them.

  • Leadership and project management
  • Teamwork and collaboration
  • Problem solving and decisions
  • Communication and growth
Read the guides

Low-level design questions

For LLD practice I use AlgoMaster's course. Their material is paid and copyrighted, so I removed the copies I used to host here and point at the source instead.

  • Machine coding and LLD drills
  • Design patterns in practice
  • Kept at the source, not mirrored here
AlgoMaster LLD track

Not affiliated. Just the resource I actually use.

Contact

Open to software engineering roles

Dublin based, available for platform, backend or app ops engineering work. Happy to talk about incident-heavy environments, automation, or anything that needs someone who reads the logs properly.

[email protected]
+353 89 943 5478
Dublin, Ireland
Stamp 1G to September 2027, sponsorship needed beyond
github.com/RohanHandore
linkedin.com/in/rohanhandore

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