SYSTEMS · NETWORKS · SECURITY · INFRASTRUCTURE

Practical support, live systems upkeep and evidence-led troubleshooting.

I'm interested in how systems operate, how they fail and how to keep them usable. My background combines technical support for private clients, live business upkeep and practical work across Windows, networks and security.

2

years supporting Windows, devices and networks

60+

client projects coordinated through completion

70+

physical releases managed through repeatable workflows

10+

technical projects across systems, networks and security

2.5k+

customer orders fulfilled through live store operations

01 / PROFILE

PROFILE

I'm practical by nature and genuinely interested in how systems behave in day-to-day use.

Technical support for private clients, live business upkeep and hands-on projects have taught me to work from symptoms toward evidence, keep ownership clear and adapt quickly when the environment is unfamiliar.

I'm looking for daily responsibility around live systems, endpoints and users, where repeated exposure can turn broad foundations into proper depth, stronger judgement and faster troubleshooting.

Professional portrait of Erwin Magielda
Practicality

Turn unclear problems into workable next steps, test what changes and keep the solution usable.

Adaptability

Adjust quickly to new clients, unfamiliar systems and changing constraints without losing the thread.

Responsibility

Keep ownership of the issue, communication and follow-up until the next action is clear.

Curiosity

Look past the symptom to understand the system, the dependency and why the behaviour changed.

02 / CAPABILITIES

CAPABILITIES

This is the toolkit I reach for when supporting endpoints, understanding network behaviour, investigating system state, documenting findings and reducing repeated manual work.

Systems

Windows environments first, with Linux, VirtualBox and Active Directory providing the wider system context.

WindowsLinuxVirtualBoxActive Directory

Networking

Packet visibility, discovery and structured troubleshooting across the path from endpoint to application.

WiresharkNmapPacket TracerNetcat

Automation

Scripting and data handling used to collect, compare, transform and report recurring technical work.

VS CodePythonPowerShellBash

Forensics

Host and artefact investigation built around evidence preservation, analysis and repeatable review.

AutopsyFTK ImagerVolatilityProcmon

Documentation

Clear technical records that keep work understandable across collaboration, handover and later review.

JiraGitHubGoogle WorkspaceMarkdown

03 / PROJECTS

PROJECTS

Four core projects lead the portfolio, with supporting work showing the wider systems, networking, forensics, security and automation foundation behind them.

01

Kolektria

Windows Patch-State Collection

PowerShell and Python tooling for collecting Windows update state, normalising host evidence and producing structured JSON and Markdown output for vulnerability-prioritisation research.

  • Collects OS, build and installed KB update evidence from Windows hosts.
  • Correlates local state with Microsoft security advisory and supersedence data.
  • Produces reproducible artefacts for comparison, review and dissertation analysis.
02

Shadowlock

Debian Secure Data Vault

Individual BSc dissertation project building an offline Linux file-protection system around authenticated encryption, integrity metadata, recovery controls and forensic validation.

  • Implemented AES-GCM encryption with per-file key derivation using HKDF.
  • Stored protected integrity metadata and maintained an encrypted event ledger.
  • Tested access control, integrity verification, teardown and recovery using forensic tooling.
Repo Pending
03

ADBox

Active Directory Infrastructure Lab

Virtualised Windows Server environment built to configure and validate a small internal domain with directory services, client joins, name resolution, policy, shared access and remote administration.

  • Configured a Windows Server 2022 Domain Controller and domain-joined clients.
  • Validated DNS, DHCP client addressing, Group Policy, shared access and RDP.
  • Documented topology, checks, faults, actions and resolution evidence.
04

N3

Jira Service Management Lab

Jira Service Management environment that converts Windows domain support scenarios into structured, prioritised and transferable cases with SLA tracking, escalation notes and knowledge records.

  • Built flows for password resets, lockouts, access, onboarding, networking and RDP.
  • Recorded user impact, priority, troubleshooting actions, escalation and resolution.
  • Connected repeat issues to handover-ready knowledge documentation.
Supporting Work

FortiSense

Machine Learning Intrusion Detection

IDS prototype comparing Random Forest, Linear SVM and PyTorch models on KDD-style traffic data, then exposing the selected classifier through a controlled TCP inference workflow for live-style testing.

Coverage
PythonPyTorchScikit-learnRandom ForestSVMNeural NetworksMachine LearningClassificationModel EvaluationData PreprocessingTCPNetwork Intrusion Detection
Repo Pending

Windows Memory Forensics

Memory Investigation

Windows memory investigation using Volatility and Kali, combining process, service and network artefacts with a Python comparison utility that highlights differences between clean and compromised captures.

Coverage
VolatilityPythonKali LinuxWindows MemoryWinPmemMemory AcquisitionProcess AnalysisService AnalysisNetwork ArtefactsHashingEvidence ComparisonDigital Forensics
Repo Pending

Windows Vulnerability Lab

Assessment + StagingBlue

Controlled Windows 7 MS17-010 lab covering discovery, validation, exploitation and credential testing, supported by StagingBlue to reproduce the required PowerShell, SMB, ICMP and registry conditions.

Coverage
NmapNessusMetasploitPowerShellMS17-010SMBVulnerability ScanningExploitationCredential TestingRemediationWindows 7StagingBlue

Smart Bin IoT

Connected Waste Monitoring

Arduino smart-bin prototype combining fill level, weight and gas sensing with automated lid control, OLED feedback and Blynk telemetry to demonstrate connected monitoring and collection planning.

Coverage
ArduinoCSensorsUltrasonicWeight SensorGas SensorServoOLEDBlynkWi-FiIoTTelemetry
Repo Pending

Linux Systems Security

Systems + Networking Labs

Practical MSc lab work covering Linux administration, C processes, TCP/IP, sockets, packet capture and stateful firewall rules, with evidence focused on how services and traffic behave.

Coverage
LinuxCTCP/IPSocketstcpdumpiptablesProcessesNetworkingFirewall RulesPacket CaptureGCCSecure Environments
Repo Pending

Cryptography Playground

Browser Cryptography Lab

Browser cryptography lab bringing classical ciphers and modern primitives into one interface, with text and file workflows for hashing, HMAC, RSA and AES to compare transformations and key handling.

Coverage
JavaScriptAESRSAHMACSHA-256EncryptionCryptographyHashingKey HandlingClassical CiphersFile InputsBrowser Crypto
Repo Pending

Wireless Security

Wireless Assessment Research

Wireless-security study covering WEP, WPA, WPA2, rogue access points, deauthentication and segmentation, using Kali and Wireshark to examine practical assessment workflows and mitigation.

Coverage
802.11Kali LinuxWiresharkAircrack-ngWEPWPAWPA2DeauthenticationRogue APSegmentationPacket CaptureWireless Security
Repo Pending

MONITomy

Website Activity Logging

Self-hosted PHP/MySQL monitoring module for my websites, recording visits and selected actions with session, request and device context, then surfacing recent activity through a private operational dashboard.

Coverage
PHPMySQLJavaScriptcPanelSession TrackingEvent LoggingClick TrackingRate LimitingBasic AuthPrepared StatementsJSON APIGeolocationSecurity HeadersInput Validation

sOndar

Network Scan Reporting

Python reporting utility built around live Nmap XML evidence, extracting hosts and services, preserving source artefacts, comparing observations across runs and producing readable Markdown reports for review.

Coverage
PythonNmapXMLMarkdownHost DiscoveryPort ScanningService EnumerationChange DetectionReportingArtefact PreservationNetwork InventoryAutomation
YOUR VISIT RECORD

Below is your visit record, saved to the database by MONITomy, my own PHP/MySQL tracking module.

IP AddressLoading...
Approx. LocationLoading...
BrowserLoading...
Operating SystemLoading...
DeviceLoading...
Visit TimeLoading...

04 / EXPERIENCE

EXPERIENCE

Self-employment built around dependable service delivery, client ownership, live operations and practical troubleshooting when technology interrupted the work.

Lifeless Chasm Records logo

E-commerce Administrator

Lifeless Chasm Records | London, October 2018 - Present

Live Operations

I run day-to-day e-commerce operations across release setup, listings, stock, customer messages, packing and dispatch, keeping records and sales channels aligned. Alongside fulfilment, I maintain the website and troubleshoot printers, devices, software and connectivity when technical issues interrupt normal operations.

  • Fulfilled 2.5k+ customer orders across Shopify, Discogs and Bandcamp through proactive stock, order and dispatch checks.
  • Structured 70+ physical releases into repeatable manual workflows with retained records and clear fulfilment steps.
  • Maintained listings, inventory and customer records across 3 active sales channels without losing release context.
  • Resolved website, printer, device and connectivity issues affecting day-to-day store and fulfilment operations.
TECH STACK
ShopifycPanelPhotoshopDaVinci Resolve
Hobby label on preset workflows; maintained outside working hours with no impact on availability.
EC Renovations logo

Project Coordinator

EC Renovations | London, June 2016 - April 2026

Client Ownership

I coordinated day-to-day client projects from enquiry through assessment, estimating, scheduling, updates and completion, keeping requirements, suppliers and site activity moving. Alongside project delivery, I provided practical technical support with Windows devices, connectivity, account access, files, CCTV and connected-home systems.

  • Coordinated 60+ client projects from enquiry through assessment, regular updates, final sign-off and handover.
  • Maintained follow-up across 150+ estimates, keeping requirements, decisions and next steps visible to clients.
  • Resolved 50+ device, access, file and connectivity issues when technical problems interrupted normal client use.
  • Became a repeat technical contact for 10+ private clients across Windows, Wi-Fi, CCTV and connected-home issues.
TECH STACK
Google WorkspaceWindowsTP-Link DecoSmart Life
Closed to regular work; occasional legacy jobs only, with no availability impact and full closure upon employment.

05 / EDUCATION

EDUCATION

Two degrees built the technical foundation behind my systems work, with the module lists kept available for anyone who wants the detail.

Middlesex University logo

MSc Cyber Security and Emerging Threats

2025 - 2026

Distinction-Level Taught Modules · Dissertation Stage

Middlesex University, London

SYSTEMS · NETWORKS · VULNERABILITY ANALYSIS · RESEARCH

Applied systems, networks and security through Python, PowerShell, Linux, penetration-testing labs and Windows vulnerability tooling, leading into current patch-prioritisation research.

Show MSc Modules
CST4545 Dist.
Programming, Systems and Networks for Modern Computing
CST4552 Dist.
Pen Testing
CST4562 Dist.
Network Security Principles and Mechanisms
CST4533 Dist.
Operating Systems for Secure Environments
CST4565 Dist.
Cybersecurity for Emerging Technologies
CST4592 Dist.
Cybersecurity Governance and Secure Development
CST4990 Ongoing
Research Methods and Postgraduate Project
Middlesex University logo

BSc Cyber Security and Digital Forensics

2022 - 2025

1st Class Honours · Outstanding Achievement Award

Middlesex University, London

OPERATING SYSTEMS · NETWORKING · PROGRAMMING · FORENSICS

Built foundations across networking, operating systems, databases, programming and digital forensics, then applied them through security engineering, investigation and practical technical projects.

Show BSc Modules
CST1340 1st
Information in Organisations
CST1500 1st
Computer Systems Architecture and Operating Systems
CST1510 1st
Programming for Data Communication and Networks
CST1530 1st
Computer Networks
CST2531 1st
Compliance and Project Management
CST2572 1st
Secure Web Technologies
CST2580 1st
Digital Incident Scene Investigation and Analysis
CST2590 1st
Internet of Everything
CST3510 1st
Memory Analysis
CST3535 1st
Computer Security and Ethical Hacking
CST3520 1st
Defensive Security
CST3590 1st
Individual Project
CREDENTIALS

Microsoft fundamentals, current certification study and a full UK manual driving licence alongside the practical work above.

MS-900Microsoft 365 Fundamentals

Certified · February 2026

AZ-900Azure Fundamentals

In Progress

SC-900Security, Compliance, Identity Fundamentals

In Progress

BFull Manual Driving Licence

UK · Full

06 / PERSONAL

PERSONAL

Outside the technical work, most of my spare time still goes into studying, with music, collecting, guitar and driving somewhere unfamiliar sitting around it.

01

Studying

I'm highly self-directed and comfortable picking up a new topic, tool or lab without being walked through it. Curiosity about how things work and why they behave the way they do keeps pulling me into new technical areas.

02

Music

I keep up with niche scenes, independent artists and underground festivals when I have the time. Small rooms and people doing something because they genuinely care about it are usually where I find the most interesting stuff.

03

Media

I collect physical music and have somehow ended up with 2,000+ releases. I catalogue everything through Discogs, keep the archive in order and regularly disappear into fixing editions, metadata and missing details.

04

Guitar

I'm self-taught and mostly play for myself. I like having a guitar nearby while listening to a podcast or learning something new and just playing without breaking focus.

05

Exploration

I like driving somewhere unfamiliar, especially rivers, quiet natural areas and forgotten places. The appeal is simply finding somewhere overlooked and seeing what's there.

07 / CONTACT

CONTACT

DIRECT

Let's Connect

Use the form for roles, projects or professional contact.

erwinmagielda@gmail.com