Shakthi Sv - Cybersecurity Engineer

Overview

Application security engineer-level developer (senior) with strong backend API and scanning system skills focused on safe web reconnaissance. The strongest proven skill is building concurrent, network-safe URL scanning and in-memory browser preview pipelines as implemented in services/http_probe.py (async worker queue, per-worker DB sessions) and services/browser_preview.py (Playwright context isolation and semaphore). There is little evidence of production deployment hygiene such as DB migration history, authentication/authorization, or observability/metrics in public code.

Phone

Timeline

Technical Support Engineer · Middle

IBM · Full-Time

Mar 2025 to Present 1 Year 8 Months Bengaluru In office

Provided managed technical support for SCADA systems used by an electrical utility client, focusing on high data integrity and operational reliability. Monitored SCADA-derived operational data and field alarms using Splunk, investigating communication failures, connectivity issues, and abnormal events. Resolved alerts and service requests using ServiceNow, collaborating with internal tools and performing root-cause analysis to restore continuity.

Splunk

Jira

ServiceNow

AutoCAD

Projects

Threat Detection Tool (Python/Bash)

Developed a security automation tool that ties together network and web reconnaissance steps. Integrated Nmap and web enumeration components to speed up discovery and assessment workflows. Used the tool to support investigations by collecting evidence from scans for follow-up analysis.

Network Scanning & Vulnerability Assessment

Automated network reconnaissance and vulnerability assessment tasks using scanning and web enumeration tools. Performed network discovery and identified potential exposed services as part of a structured assessment workflow. Practiced turning scan results into actionable findings.

SOC Home Lab

Built a Splunk-based SOC home lab using Windows Event Logs to detect suspicious login activity. Created alerts and supported incident analysis workflows for identifying potential threats. Used the lab to practice blue-team monitoring and log-based detection logic.

Technical skills

Languages

3

Python

PowerShell

Bash

Python

7

FastAPI

SQLAlchemy

Pydantic

Asyncio

HTTPX

Beautiful Soup

Uvicorn

DevOps

6

Splunk

GitHub

Netlify

Observability

Linux

Windows

Cybersecurity

15

Metasploit

Burp Suite

Microsoft Sentinel

Microsoft Defender

SIEM

VirusTotal

Wazuh

Microsoft Entra ID

MITRE ATT&CK

Nessus

Nmap

Nuclei

OWASP Top 10

SQLmap

Wireshark

Other

13

AutoCAD

ServiceNow

Frontend

Kali Linux

TCP/IP

Debian

Gobuster

Snort

DNS

VPN

Caido

Nikto

OWASP

Senior Backend Developer Confidence: Medium API Engineer

Application security engineer-level developer (senior) with strong backend API and scanning system skills focused on safe web reconnaissance. The strongest proven skill is building concurrent, network-safe URL scanning and in-memory browser preview pipelines as implemented in services/http_probe.py (async worker queue, per-worker DB sessions) and services/browser_preview.py (Playwright context isolation and semaphore). There is little evidence of production deployment hygiene such as DB migration history, authentication/authorization, or observability/metrics in public code.

API Design

5/10

How well APIs are designed

API surface shows deliberate design for pagination, filtering, and a consistent error/success wrapper, but lacks explicit versioning, idempotency keys, and global rate limiting.

Evidence

ReconScope/api/urls.py: list_urls implements pagination, filtering, sort_by and structured responses

ReconScope/api/__init__.py: centralized success_response and error_response helper usage

ReconScope/static/js/urls.js: client-side use of /api/urls query contract (pagination and filters)

Data Layer & Database

6/10

Working with databases

Data layer demonstrates careful transactional handling, N+1 avoidance and pragmatic sqlite workarounds, though no migration chain (Alembic) is present in analyzed files.

Evidence

ReconScope/services/http_probe.py: run_scan_job uses SessionLocal per worker, db_lock for serialized writes and per-worker sessions

ReconScope/api/urls.py: _latest_http_titles subquery and joinedload usage to avoid N+1 loads

ReconScope/api/urls.py: temp regex table creation and sqlite progress handler to bound expensive queries

Scalability & Performance

5/10

Handling load and speed

Concurrency and large-scale scanning concerns are addressed (async workers, bounded response streaming, semaphores and process-isolated regex), but there is limited evidence of end-to-end performance measurement, caching with invalidation, or external queueing infrastructure.

Evidence

ReconScope/services/http_probe.py: async Queue worker model, concurrency parameter and streaming reads with max_response_size

ReconScope/services/browser_preview.py: _preview_semaphore and shared browser instance with per-context isolation

ReconScope/api/urls.py: out-of-process regex worker and bounded matching to prevent main-thread hang-ups

System Architecture

5/10

Overall system structure

Code is modular with clear service boundaries (api routers, services, database layer) and lifecycle hooks, but there is little evidence of wider production infra concerns like secret management, multi-service contracts, or deployment/CI design.

Evidence

ReconScope/app.py: mounts routers and uses lifespan hooks (init_db, close_browser)

ReconScope/services/browser_preview.py and ReconScope/services/http_probe.py: separate services for previews and probes

ReconScope/api/*.py: APIRouter per resource showing modular API decomposition

Security & Auth

5/10

Protecting data and access

Security-awareness is visible in network safety checks, input length limits and safe header exposure for previews, but there is no evidence of authentication/authorization controls or secrets lifecycle handling in the analyzed code.

Evidence

ReconScope/services/scope_validator.py: validate_target_url is used to enforce network safety in probes and previews

ReconScope/services/browser_preview.py: _safe_response_headers prevents leaking cookies or sensitive headers

ReconScope/services/http_probe.py: validate_target_url is called before each request and TLS/DNS errors are classified

Reliability & Observability

4/10

Stability and monitoring

The code uses timeouts, try/except safeguards, and structured logging, and provides graceful Playwright shutdown, but lacks visible metrics, correlation ids, sophisticated retry/backoff strategies, and explicit alerting/observability hooks.

Evidence

ReconScope/services/http_probe.py: explicit httpx timeouts, exception handling and logging in probe_url and run_scan_job

ReconScope/services/browser_preview.py: close_browser for graceful shutdown and asyncio.timeout usage

Expertise

Python· Senior

Microservices & API Architecture· Senior

Databases & Vector Storage· Senior

System Architecture· Middle

Industries

Cybersecurity· Senior

Technologies

Python· Senior

SQLAlchemy

FastAPI

Beautiful Soup

Asyncio

Pydantic

HTTPX

Uvicorn

Recommendations

Lead development of REST APIs and background scanning services that need robust concurrency and safe network controls (URL scanners, crawl pipelines).
Implement and harden production operational concerns for the scanner: add DB migrations (Alembic), metrics/alerts, and structured traces/correlation ids.
Extend the system for higher throughput with external workers/queues (e.g. Kafka/Celery) and measurable load-testing scenarios to validate concurrency settings.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

ReconScope bugbounty-ai-knowledge over-the-wire-bandit-challange

Senior DevOps Engineer Confidence: Medium Security Ops

Security-focused engineer (senior) specializing in local-first reconnaissance tooling with careful async scan orchestration and network safety controls. The strongest proven skill is building safe, scalable asynchronous HTTP probing and scan orchestration as implemented in ReconScope/services/http_probe.py. Public code lacks CI/CD pipelines, container orchestration manifests, cloud IaC, and formal SLO/alerting definitions.

CI/CD Pipelines

Automated build and deploy

Not evidenced in public code

Infrastructure as Code

Managing servers with code

Not evidenced in public code

Containerization & Orchestration

Working with containers

Not evidenced in public code

Observability & Monitoring

1/10

Watching system health

Minimal observability is present via structured logging and in-code job metrics, but there are no SLOs, alerting rules, dashboards, or alert routing as code.

Evidence

ReconScope/services/http_probe.py: logger = logging.getLogger('reconscope.probe') and run_scan_job updates on ScanJob counters

ReconScope/services/browser_preview.py: logger = logging.getLogger('reconscope.preview') and metadata captured in PreviewCapture

Reliability & Incident Response

5/10

Keeping systems up

Clear reliability-focused design: async worker queue with pause/cancel controls, safe out-of-process regex sandboxing and SQLite progress handler to avoid long-running queries, careful resource/timebox handling and graceful browser shutdowns; these are pragmatic production-quality reliability measures though postmortems, runbooks and deploy gates are not present.

Evidence

ReconScope/services/http_probe.py: ACTIVE_SCANS map, asyncio.Queue workers, per-worker DB recheck and worker cancellation/pausing in run_scan_job

ReconScope/services/urls.py: _bounded_regex_matches using multiprocessing with timeout and SQLite progress handler to bound regex runtime

ReconScope/services/browser_preview.py: _preview_semaphore, navigation/settling timeouts, and close_browser() for graceful shutdown

Cloud & Cost Optimization

Smart use of the cloud

Not evidenced in public code

Expertise

Site Reliability Engineering· Senior

Industries

Cybersecurity· Senior

Technologies

Observability

Splunk· mentioned only

Recommendations

Lead work on scalable scan orchestration and reliability features such as graceful restart, backpressure metrics and deploy-safe rollout procedures (canary/rollback) leveraging the existing async worker model.
Implement observability-as-code: export Prometheus metrics, add meaningful SLI/SLOs with alert rules, and add dashboard-as-code to make operational behavior measurable and auditable.
Add CI/CD pipelines and reproducible container images with multi-stage builds and non-root runtime, and include infrastructure provisioning or deployment automation suited for local-first and optional cloud deployments.
Harden supply-chain and secrets handling by adding automated dependency scanning, signed artifacts or cosign, and integrate a secrets manager or workload identity instead of any plaintext credentials.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

ReconScope over-the-wire-bandit-challange splunk-soc-home-lab

Middle Frontend Developer Confidence: Medium UI Engineer

UI-focused frontend engineer (Middle) with a strong emphasis on accessible, responsive HTML and CSS for security-focused public sites and portfolios. The strongest proven skill is building accessible, responsive static interfaces supported by a centralized stylesheet and semantic pages as seen in the services and contact pages and styles.css. The work shows limited client-side application architecture, no advanced async state handling, and no automated tests or measurable performance tooling in public code.

UI Component Architecture

3/10

How interface parts are built

Semantic HTML structure and a single, well-organized stylesheet indicate deliberate UI structuring, but there is no component framework, reusable JS component library, or custom componentization beyond modular CSS classes.

Evidence

ShakthivelB/osint_portfolio/styles.css: central design tokens, variables and layout rules ShakthivelB/osint_portfolio/index.html: repeated header/nav structure reused across pages ShakthivelB/osint_portfolio/services.html: use of details/summary for expandable service groups

Responsive & Cross-browser

6/10

Works on all screens and browsers

Responsive-first CSS using modern primitives (clamp, media queries), mobile menu patterns, and prefers-reduced-motion support show conscious cross-device and accessibility-aware design.

Evidence

ShakthivelB/osint_portfolio/styles.css: use of clamp(), media queries and @media(prefers-reduced-motion:reduce) ShakthivelB/osint_portfolio/styles.css: responsive header/nav and burger menu rules (max-width:720px blocks) ShakthivelB/osint_portfolio/contact.html: grid-based responsive contact form layout

Performance Optimization

2/10

Speed of the interface

Minor surface-level optimizations are present (font-display:swap, video preload) but there is no evidence of measured performance work, code-splitting, bundle analysis, or virtualization.

Evidence

ShakthivelB/osint_portfolio/styles.css: @font-face with font-display:swap ShakthivelB/osint_portfolio/index.html: background video element uses preload and playsinline

Accessibility & Semantics

7/10

Usable for everyone

Strong semantic markup and accessibility signals are present: labeled form controls, ARIA attributes, role/status with aria-live, focus-visible outlines, and good keyboard/semantic affordances for interactive elements.

Evidence

ShakthivelB/osint_portfolio/contact.html: labeled inputs, role="status" and aria-live on .form-status, honeypot field with aria-hidden ShakthivelB/osint_portfolio/services.html: details/summary used for expandable content and aria-labelledby usage ShakthivelB/osint_portfolio/styles.css: :focus-visible rules for interactive elements and prefers-reduced-motion handling

State Management & Data Flow

1/10

Managing data in the app

No evident client-side async state management or server-state discipline patterns; a contact form and a deferred main.js reference exist, but request cancellation, optimistic updates, and race handling are not present in the analyzed files.

Evidence

ShakthivelB/osint_portfolio/contact.html: contact-form markup and .form-status element ShakthivelB/osint_portfolio/index.html: <script src="/main.js" defer></script> (main.js not included in provided files)

UX & Visual Polish

5/10

Look and feel quality

Visually polished UI with animations, transitions, and considered microinteractions; however, explicit loading/error/empty-state patterns and undo/rollback flows are minimal or absent.

Evidence

ShakthivelB/osint_portfolio/styles.css: animation keyframes (headlineFade, revealPulse) and hover/transition patterns ShakthivelB/osint_portfolio/contact.html: .form-status placeholder for status feedback ShakthivelB/osint_portfolio/services.html: animated expand/collapse service groups

Expertise

HTML & CSS· Middle

Industries

Cybersecurity· Middle

Technologies

Frontend

Splunk· since 2025

Kali Linux

Debian

Netlify

AutoCAD· since 2025

GitHub

Linux

Windows

TCP/IP

DNS

VPN

Recommendations

Use the developer to build or refine accessible, responsive marketing and portfolio sites with clear UX and semantic markup.
Task the developer with extracting the shared header, footer and layout into a small design-system or component library (HTML/CSS + lightweight JS) for reuse across static pages.
Have them implement robust contact flows by adding server-side validation and secure form handling to replace the current static form placeholder.
Pair the developer with a frontend engineer experienced in frameworks to migrate the UI into a componentized SPA if interactive state management is required.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

osint_portfolio bugbounty-ai-knowledge insta_phish

Job preferences

Work permits: India
Locations: Bengaluru