~/about/profile.sh
Clayton Siby
AVAILABLE FOR WORK
$whoami

Clayton Siby

Senior Software Engineer · Infrastructure & Platform · Security Engineering

Software engineer with 6+ years of professional experience specializing in Software Engineering, DevOps, and Cybersecurity. I architect secure, scalable systems while implementing robust CI/CD pipelines and infrastructure automation. My academic foundation in Cybersecurity & Systems Engineering complements my practical expertise in cloud infrastructure, containerization, and security architecture.

From securing fintech platforms handling millions in transactions to architecting zero-trust microservices infrastructure, I deliver production-grade solutions across the entire DevOps lifecycle. My approach combines security-first development, automated testing, infrastructure as code, and continuous monitoring to ensure systems that are not just scalable, but resilient and secure.

I'm passionate about building secure distributed systems, automating everything, and contributing to the infosec and DevOps communities through mentorship and open-source contributions. Always exploring emerging technologies in cloud-native security, zero-trust architecture, and container orchestration.

6+
Years Exp
10+
Clients
10+
Projects

$ cat skills.json

// Technical expertise & tools

⚙️Software Engineering
  • React.js / Next.js
  • TypeScript / JavaScript
  • Node.js / Express
  • Python / Django
  • PostgreSQL / MongoDB
  • REST APIs / GraphQL
🚀DevOps & Cloud Infrastructure
  • Docker / Kubernetes
  • AWS / Azure / GCP
  • CI/CD Pipelines
  • Terraform / IaC
  • Linux Administration
  • Monitoring & Logging
🔐Security & Systems
  • Penetration Testing & Vulnerability Assessment
  • OWASP Top 10 Mitigation
  • Threat Modeling & Secure SDLC
  • Cryptography & Compliance
  • Secure Authentication / OAuth / JWT
  • Network Security & Zero Trust

$ git log --experience

// Professional journey & milestones

Helm Digital
Oct 2023 – Present
Helm Digital

Senior Software Engineer

Lead engineer on a production WhatsApp chatbot platform on the Meta Cloud API, operating at scale across multiple enterprise clients. Responsibilities span infrastructure architecture, security, automation tooling, and AI integration.

Architected scalable systems delivering structured WhatsApp campaigns to millions of active users via the Meta Cloud API — bulk delivery pipelines, opt-in flows, and webhook-driven campaign triggers.
Built abuse-mitigation and bot-detection infrastructure: layered MSISDN format validation, Redis-backed rate limiting, fuzzy username deduplication, and composite risk-scoring with allow/challenge/block thresholds.
Authoring an organisation-wide security auditing reference covering seven core control layers in collaboration with senior Platform Engineering colleagues.
Integrated LLMs (Anthropic, Groq) into production chatbot flows — tone detection, latency benchmarking across providers, and structured-response patterns for enterprise customer engagement.
Served as Lead Engineer on multiple client-facing products — translating business requirements into technical specifications, architectural diagrams, and delivery timelines.
Flexperto
Apr 2023 – Sep 2023
Flexperto

Software Engineer

Full-stack engineer on a SaaS platform for real-time business-to-customer video communication with AI-assisted transcription.

Contributed to a microservices-based platform powering live video sessions and AI-driven transcription, working across Node.js services and TypeScript frontend modules.
Maintained and extended Jenkins CI pipelines to support automated testing and reliable deployment, reducing release friction across multiple services.
Collaborated cross-functionally with engineering, design, ML, and client-facing teams to improve performance and end-user experience.
Applied OOP, SOLID, and clean-code principles consistently — testing, documentation, and architectural rigour — to ship maintainable production features.
Platform45
Apr 2022 – Apr 2023
Platform45

Rails Full-Stack Engineer

Production Rails platform serving high-traffic ticketing and live-event workflows.

Built and optimised background-processing systems (Sidekiq + Redis) to handle peak-load ticketing scenarios with millions of active users, improving throughput and reducing queue lag.
Developed transactional email infrastructure for an e-commerce product, lifting customer notification reliability for sales and campaign workflows.
Designed intuitive e-commerce UIs that measurably reduced support overhead, and shipped real-time data and automation features to support the operations team.
Delivered well-tested code via unit and integration tests; integrated Sentry, CircleCI, and webhook-driven event flows into the production pipeline.
SIMU.IQ
Sep 2021 – Apr 2022
SIMU.IQ

Technical Support Engineer

Infrastructure and security operations across a distributed Africa- and Europe-spanning server fleet.

Monitored production servers in real time and performed system upgrades to maintain service reliability across a distributed fleet.
Built an internal automation system for client-device detection and configuration, materially reducing onboarding overhead.
Implemented token-based authentication to harden access to sensitive resources — hands-on exposure to applied security engineering.
Performed on-premises server assessments to improve client data security and physical-device security posture.
Upwork
Feb 2019 – Jun 2021
Upwork

Freelance Full-Stack Developer

Full-stack web solutions for international clients across e-commerce, APIs, and interactive applications.

Delivered e-commerce platforms with Stripe payment integration and responsive UIs for international clients.
Designed REST APIs with documentation, database schemas, and shopping-cart/transaction systems.
Built interactive browser-based applications including 2D games, optimising performance across devices.

$ cat education.md

// Academic foundation & formal training

BSc Computer Science

Software Engineering & Cybersecurity

Goldsmiths, University of London

2023 – 2026 (in progress)

Specialisation in Software Engineering and Cybersecurity, directly aligned with current professional pivot into security engineering.

$key_areas:
Software Engineering: Design patterns, system architecture, scalable applications
Cybersecurity: Penetration testing, secure SDLC, threat modeling, cryptography
Cloud & DevOps: Infrastructure automation, CI/CD, containerisation, monitoring
Advanced Topics: Distributed systems, network security, secure API design

$ ls certifications/

// Professional credentials

Microverse

Full Stack Web Development

1,300+ hours covering algorithms, data structures, and full-stack delivery — Ruby on Rails, JavaScript, React, Redux, remote pair programming, Git workflows, and daily standups with international teams.

MicroverseMar 2020 – Aug 2021
freeCodeCamp

Advanced Algorithms and Data Structures

Advanced algorithms, data structures, and computational problem-solving fundamentals.

freeCodeCamp2019

$ cat off_duty.log

// The human behind the terminal

🎮
Gaming & Streaming

// Call of Duty — live on stream. Warzone is the closest thing to a real-time distributed systems test

Live streamer
🏍️
Motorcycles

// Weekend track days. Tarmac physics are as interesting as distributed systems

Track rider
📚
Studying

// BSc CS at Goldsmiths — cybersecurity specialization, kernel exploitation module

Est. 2027

// Full gear list & setup → /lab

~/connect
$ echo "Let's work together"

Interested in Collaborating?

I'm always open to discussing new projects, creative ideas, or opportunities.