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Ahmad Aftab

Python Team Lead and Senior Developer with 6+ years of experience building secure, scalable backend systems using Python, FastAPI, and Django. Proven expertise in REST API development, PKI/Certificate Authority implementation, and ETL pipeline engineering.

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Currently @ DictaLabs

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About Me

I'm a Python Team Lead and backend engineer based in Lahore, with 6+ years turning complex requirements into secure, reliable systems. I specialize in FastAPI, Django, PKI/cryptography, and data engineering.

I enjoy the hard parts — clean API architecture, certificate lifecycle management, and ETL pipelines that hold up under real load. Along the way I've led teams, mentored engineers, and shipped production systems across security, healthcare, and analytics.

Based in
Lahore, PK
Experience
6+ years
Role
Python Team Lead
Availability
Remote-friendly

Impact by the Numbers

Real, measured outcomes from systems I've shipped

6+

Years Experience

5

Companies

HIPAA

Compliant

100%

Remote-ready

Data Pipelinesreduction
−0%

Faster ETL Preprocessing

Pandas + Celery pipeline at Evocate Media

Before
After
Performanceincrease
+0%

Faster DB Queries

PostgreSQL indexing & tuning

Before
After
Automationreduction
−0%

Less Manual Upkeep

Automated coupon updates & backups

Before
After
Analyticsincrease
+0%

Partner Sales Lift

Redemption & cashback analytics

Before
After
Productincrease
+0%

Higher Engagement

Social data web application

Before
After
Automationreduction
−0%

Fewer Manual Tasks

Google API contact workflows

Before
After

Technical Skills

Tools and technologies I work with daily

⚡

Backend & APIs

Core

My core expertise — designing secure, high-throughput services and clean API architecture at scale.

PythonFastAPIDjango & DRFRESTful API DesignCeleryAuthentication & EncryptionSystem Design
$
📊

Data & Analytics

Pandas & NumPyPostgreSQL & MySQLMatplotlib / Seaborn / PlotlyETL & Data Cleaning
🏗️

Infrastructure & Cloud

DockerGCPAWS (Basics)Git / GitHub / GitLab
🎨

Frontend

HTMLCSSJavaScript
🎯

Leadership

Team LeadershipCode ReviewMentorship
🔐

Security

PKI & Certificate AuthoritiesCertificate Lifecycle ManagementSecure CodingHIPAA Compliance
🌐 Languages
Punjabi· NativeUrdu· NativeEnglish· Fluent

Experience

My professional journey across 6+ years

Team Lead

Full-time

DictaLabs

Jan 2026 – PresentLahore, Pakistan
  • Lead a cross-functional team of Python engineers delivering secure, production-grade backend services — overseeing architecture, roadmap, and timelines.
  • Design and develop high-performance FastAPI REST APIs with focus on security, scalability, and clean architecture patterns.
  • Architect and implement PKI solutions including Certificate Authorities and end-to-end certificate lifecycle management.
  • Drive code quality through rigorous reviews, secure coding standards, and mentorship of junior and mid-level engineers.
  • Partner with product and DevOps teams on sprint planning, system design, and seamless CI/CD delivery.
PythonFastAPIPKICertificate AuthoritiesREST APIsTeam LeadershipSystem Design

Senior Python Developer

Full-time

DictaLabs

Aug 2025 – PresentLahore, Pakistan
  • Built robust, high-throughput FastAPI REST APIs with emphasis on reliability, performance, and maintainability at scale.
  • Designed and deployed PKI infrastructure including Certificate Authorities and automated certificate lifecycle workflows.
  • Established and enforced secure coding practices and architectural standards, reducing vulnerabilities across the codebase.
  • Collaborated with DevOps teams to streamline deployment pipelines and improve system observability.
PythonFastAPIDjangoPKIREST APIsDevOpsCode Review

Product Engineer — Data Analyst Focus

Evocate Media

Oct 2022 – PresentUSA (Remote)
  • Engineered Django-based data pipelines to ingest, clean, and standardize large-scale product usage data for reliable monthly reporting.
  • Built ETL workflows using Python (Pandas) and Celery to process transactional datasets into PostgreSQL, reducing preprocessing time by 80%.
  • Developed RESTful APIs translating business requirements into on-demand analytics endpoints for stakeholders.
  • Optimized PostgreSQL via strategic indexing and automated backups, improving analytical query speed by 30%.
  • Produced data visualizations using Matplotlib, Seaborn, and Plotly for executive stakeholder reviews.
DjangoPandasPostgreSQLETLCeleryData Visualization

Data Analyst

Haven Health Management

Aug 2024 – Apr 2025USA (Remote)
  • Collected, cleaned, and integrated patient data from ModMed EHR using Python (Pandas) and SQL, maintaining strict HIPAA compliance.
  • Analyzed appointment no-show patterns, delivering recommendations that reduced patient wait times by 15%.
  • Automated reporting workflows via Python and Celery, eliminating manual overhead and providing real-time metrics.
  • Built KPI dashboards in Matplotlib and Plotly — covering patient flow, physician workload, bed occupancy.
  • Implemented automated appointment reminders with clinical teams, increasing patient adherence by 10%.
PythonPandasSQLHIPAAData VisualizationCelery

Python Developer (Django)

FJA Tech Solution

Jan 2020 – Jul 2021Lahore, Pakistan
  • Developed a full-featured Django CMS for coupon and redemption management backed by PostgreSQL.
  • Built ETL workflows in Python (Pandas) generating weekly reports that identified top-performing offers.
  • Automated coupon updates and backups, cutting manual maintenance by 50% and improving system reliability.
  • Analyzed redemption patterns and cashback incentives, driving a 20% increase in partner sales.
DjangoPostgreSQLPandasETLCMS

Python Developer (Django)

PascalineSoft

Jan 2019 – Nov 2019Lahore, Pakistan
  • Built a Python/Django web application for social data management and user behavior analysis, increasing platform engagement by 25%.
  • Integrated Google APIs to automate contact workflows, reducing manual tasks by 40%.
  • Implemented authentication and encryption protocols ensuring full data-protection compliance.
DjangoGoogle APIsAuthenticationEncryption

Featured Projects

Selected work — the problem, my approach, and the measured impact

⚛️

PQC Scanner — Post-Quantum Readiness Platform

DictaLabs

2025 – Present

Measures how quantum-safe an organization's infrastructure, code, and traffic really is.

Problem

Organizations had no way to know whether their infrastructure, source code, and network traffic relied on cryptography that quantum computers will eventually break.

Approach

Built a FastAPI platform with Celery/Redis background workers that scan live services (TLS/SSL, SSH, SMTP), Git repositories, and PCAP captures — orchestrating tools like testssl, Semgrep, and Gitleaks — secured with JWT auth, roles, and API keys, and shipped via Docker.

Impact

Generates a 1–10 PQC readiness score, CycloneDX CBOMs (Cryptographic Bill of Materials), and compliance-mapped PDF/CSV reports across networks, code, and traffic — surfaced through dashboards with heatmaps and compliance status.

1–10PQC readiness score
FastAPIPostgreSQLCeleryRedisDockerSemgrep
🖋️

Digital Signature & Workflow Platform

DictaLabs

2025 – Present

Legally-binding e-signatures and secure, automated document workflows.

Problem

Enterprises relied on slow, paper-based approval and signing processes that were hard to audit and didn't meet modern e-signature regulations.

Approach

Built a PKI-backed digital signature platform with FastAPI REST APIs — tamper-evident signing, sequential approval workflows, role-based access, reusable templates, audit trails, and HSM-backed key storage aligned with eIDAS (EU) and ESIGN/UETA (US) standards.

Impact

Replaced paper processes with secure, legally-binding electronic workflows — remote signing from any device, real-time status tracking, and full traceability.

eIDAS& ESIGN compliant
FastAPIPostgreSQLPKIHSMREST APIsDocker
🏥

Healthcare Data Analytics Platform

Haven Health

2024 – 2025

HIPAA-compliant analytics for a US healthcare provider.

Problem

Patient data was siloed in the ModMed EHR with manual, error-prone reporting, and appointment no-shows were hurting throughput.

Approach

Built Python/Pandas + SQL ETL under strict HIPAA compliance, automated reporting with Celery, and KPI dashboards in Matplotlib & Plotly.

Impact

Cut patient wait times by 15%, lifted adherence by 10%, and delivered real-time operational metrics to department heads.

15%shorter wait times
PythonPandasSQLCeleryPlotlyHIPAA
🔐

PKI Certificate Authority

DictaLabs

2025 – Present

Enterprise certificate authority with lifecycle automation.

Problem

The platform needed secure, automated certificate issuance and end-to-end lifecycle management for enterprise security.

Approach

Architected a Certificate Authority with automated lifecycle workflows, exposed through secure FastAPI services and enforced secure-coding standards.

Impact

Delivered production-grade PKI with full certificate lifecycle automation and a measurable drop in vulnerabilities.

E2Ecert lifecycle automated
PythonFastAPIPKICertificate AuthoritiesSecurity
📊

Product Analytics ETL Pipeline

Evocate Media

2022 – Present

High-throughput ETL powering monthly product analytics.

Problem

Large-scale product usage data needed cleaning and standardizing, but preprocessing was slow and analytical queries lagged.

Approach

Engineered Django + Pandas/Celery ETL into PostgreSQL with strategic indexing, plus on-demand analytics REST APIs for stakeholders.

Impact

Reduced preprocessing time by 80% and improved analytical query speed by 30%.

80%faster preprocessing
DjangoPandasCeleryPostgreSQLETL
🎟️

Coupon & Redemption CMS

FJA Tech

2020 – 2021

Django CMS for coupon management and offer analytics.

Problem

The business needed to manage coupons and redemptions and surface top-performing offers without heavy manual upkeep.

Approach

Built a full Django CMS on PostgreSQL with Pandas ETL weekly reports and automated coupon updates & backups.

Impact

Cut manual maintenance by 50% and drove a 20% increase in partner sales.

20%more partner sales
DjangoPostgreSQLPandasETLCMS

What I Can Help With

Bring me a problem — here's where I can take it off your plate

⚙️

Backend & API Development

Secure, high-throughput REST APIs and backend services with clean, maintainable architecture.

  • FastAPI / Django
  • REST API design
  • Auth & RBAC
🔐

Security & Cryptography

PKI, certificate authorities, digital signatures, and post-quantum readiness — security built in from day one.

  • PKI / CAs
  • Digital signatures
  • PQC readiness
📊

Data Engineering & ETL

Reliable ETL pipelines and database optimization that turn messy data into trustworthy analytics.

  • ETL pipelines
  • PostgreSQL tuning
  • Dashboards
🤖

Automation & Integrations

Background jobs, third-party integrations, and workflow automation that remove manual, repetitive work.

  • Celery / Redis
  • API integrations
  • Workflow automation
Start a project →

Education & Certifications

Education

Bachelor of Science in Computer Science

Bahauddin Zakariya University

Apr 2014 – Sep 2018Multan, Pakistan

Certifications

Python Data Structures

University of Michigan

2019

Python for Everybody

University of Michigan

2018

Available for new projects

Let's build something together

Have a project in mind or a problem to solve? Whether it's backend, APIs, security, or data — tell me about it and I'll get back to you within 24 hours.

Email

hello@codewithahmed.com

LinkedIn

linkedin.com/in/realahmad

Phone

+92 308 479 9906

Location

Lahore, Pakistan

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