Hi, I'm Usama Haider
Senior Python Engineer·AI/LLM Specialist
Python | Django | FastAPI | Flask | Elixir | Phoenix | Node with 8+ years of experience in building scalable web applications, RESTful APIs, and AI-integrated systems.
Usama Haider
Senior Python Engineer · AI/LLM Specialist
Professional Summary
- Results-driven Senior Python Engineer with 8+ years of experience building scalable web applications, RESTful APIs, and AI-integrated systems.
- Deep expertise in Python (Django, FastAPI, Flask), Elixir/Phoenix, and modern cloud infrastructure (AWS, Docker, Kubernetes).
- Proven track record in LLM training, prompt engineering, and AI output auditing.
- Strong DevOps mindset with CI/CD experience.
- Skilled team leader and mentor who delivers innovative, business-focused solutions.
- Delivered scalable solutions across industries including FinTech, E-commerce, EdTech, Healthcare, and Government.
Technical Expertise
Backend Development
Other Technologies
Database & Infrastructure
Work Experience
BeeTechy
March 2026 - Present
Remote
- Audited LLM-generated responses by comparing outputs against expected results from Python code and functions.
- Assigned pass/fail evaluations based on correctness, logic, and prompt compliance with detailed justifications.
- Conducted task-level and domain-level audits to validate response accuracy and requirement fulfilment.
- Identified missing arguments, incorrect implementations, and logical errors to improve model reliability.
Skills & Technologies:
Gigaclear
Feb 2025 - Present
Remote
- Built and maintained robust RESTful APIs using clean architecture principles (httpio).
- Containerised applications with Docker; deployed via Kubernetes, AWS Lambda, and ECS.
- Integrated PostgreSQL/MySQL databases and handled geospatial data requirements.
- Wrote unit and integration tests; conducted code reviews to maintain high engineering standards.
- Collaborated in Agile teams across product, DevOps, and QA to ensure reliable delivery.
Skills & Technologies:
Uber AI Solutions
Sep 2025 - Jan 2026
Remote
- Designed structured prompts and created high-quality training responses for large language models.
- Evaluated and ranked multiple AI outputs for accuracy, completeness, reasoning, and instruction adherence.
- Verified solutions against prompt requirements and provided clear justifications for model selection.
- Improved model performance through iterative prompt refinement and structured feedback loops.
Skills & Technologies:
Turing
Jan 2025 - Aug 2025
Remote
- Curated, cleaned, and annotated datasets for LLM training and evaluation pipelines.
- Fine-tuned and optimised LLMs on domain-specific data; evaluated performance using quantitative and qualitative metrics.
- Identified and reduced biases, errors, and undesired behaviours in model outputs.
- Collaborated cross-functionally to align models with business objectives and user needs.
Skills & Technologies:
Founders Network
Dec 2022 - Sep 2024
Remote
- Developed and maintained scalable backend services using Python, Django, and Django REST Framework.
- Designed and implemented RESTful APIs supporting frontend applications and external integrations.
- Built responsive frontend interfaces using ReactJS and Bootstrap.
- Managed and optimised large-scale PostgreSQL databases for performance and reliability.
- Designed microservices architectures and deployed applications on AWS with Docker containerisation.
- Monitored production systems and drove ongoing performance optimisation initiatives.
Skills & Technologies:
Ecosystem
Aug 2022 - Nov 2022
Remote
- Developed full-stack web applications using Python, Django, Django REST Framework, and ReactJS.
- Designed scalable backend services, RESTful APIs, and secure server-side security features.
- Managed large-scale PostgreSQL databases and deployed applications on AWS with Docker.
Skills & Technologies:
InvoZone
Apr 2021 - Jan 2022
Remote
- Developed scalable backend services using Python, Elixir, Django, Flask, FastAPI, and Phoenix.
- Designed RESTful APIs and microservices architectures for web applications and integrations.
- Managed and optimised large-scale PostgreSQL databases; deployed on AWS with Docker.
Products:
Skills & Technologies:
Generate Intel
Sep 2020 - May 2021
Remote
- Developed and maintained backend applications using Python and Django.
- Designed scalable RESTful APIs and implemented microservices based on product requirements.
Products:
Skills & Technologies:
INTELLISENCE
Dec 2019 - Mar 2021
Remote
- Developed backend applications using Python, Django, Flask, and FastAPI.
- Wrote Python scripts for data parsing and processing of structured and unstructured data.
- Managed large-scale databases, implemented security features, and deployed production systems.
Skills & Technologies:
Asemteq
May 2018 - Dec 2019
Remote
- Built backend applications using Python, Django, Flask, and FastAPI with RESTful API design.
- Managed databases, implemented microservices architectures, and ensured production performance.
- Established strong foundations in scalable architecture design and server-side security.
Skills & Technologies:
Skills & Expertise
MSc Data Science
Specialized in Data Science, Machine Learning, and Advanced Analytics.
Achievements:
- Gained comprehensive expertise in AI, Machine Learning, and Large-Scale Data Processing.
- Applied advanced data science methodologies to real-world problems.
Key Courses:
BSc Computer Science (BSCS)
Comprehensive program covering fundamentals of programming and software development. Focused on practical applications and theoretical foundations.
Achievements:
- Developed strong foundations in scalable architecture design.
- Acquired deep understanding of algorithms and data structures.
Key Courses:
Featured Project
A powerful desktop tracker and web dashboard for real-time monitoring, task tracking, and employee productivity.
TeamTrackin Desktop + Dashboard
https://teamtrackin.com
TeamTrackin – All-in-One Remote Workforce Monitoring Platform
TeamTrackin is a web app designed for remote companies to manage their employees’ time, productivity, projects, leaves, and payments — backed by a desktop tracking application with screenshot capture and detailed reporting.
Smart User Management
Admin can add, edit, or delete users and assign projects to team members
Daily & Weekly Reporting
Generate downloadable reports on hours, screenshots, and payment records
Real-Time Activity Tracking
Capture screenshots and log productivity with a desktop tracker
Leave & Overtime Flow
Admin dashboard to approve/reject time-off, overtime, and view project progress
Projects
A selection of featured and notable projects I’ve worked on.
Other Notable Projects
Knab
Digital-first bank designed for freelancers and small businesses.
Knab provides a convenient way to manage business and personal finances through a single platform, with a strong focus on personal service and real-time assistance.
Challenges:
- Ensuring bank-grade security
- Managing high-volume financial transactions
Solutions:
- Implemented strict AWS security protocols
- Utilized ElasticSearch for fast financial data handling
HWW
Legal advice and corporate restructuring platform for German business environments.
HWW specializes in reorganizing and restructuring organizations, guiding them safely through difficult business and legal challenges.
Challenges:
- Real-time legal updates
- Complex corporate data management
Solutions:
- Integrated WebSockets for live notifications
- Developed robust Elixir-based backend
AppWork
Property maintenance and management software for technicians and residents.
AppWork streamlines communication, task management, and issue tracking for property managers and residents into a single intuitive platform.
Challenges:
- Real-time coordination of tasks
- Secure file storage for maintenance records
Solutions:
- Implemented live communication via Sockets
- Used S3 for scalable media storage
Taskeen
Technology-driven property management and rent collection platform.
Taskeen offers a complete digital platform for online rent collection, asset management, and leasing, making property management accessible anywhere.
Challenges:
- Managing complex lease agreements
- Automating financial reporting
Solutions:
- Developed a dynamic form engine
- Integrated with Celery for scheduled reporting tasks
Bio Hundeshop
Swiss e-commerce platform for sustainable pet care and accessories.
Bio Hundeshop provides sustainable pet products with a focus on Swiss market requirements, including regional delivery logistics.
Challenges:
- Managing multi-warehouse inventory
- Integrating with local shipping APIs
Solutions:
- Developed high-availability inventory sync
- Built custom shipping glue modules
Lyftrondata
Agile, ETL-free data preparation and management platform.
Lyftrondata simplifies analytics by enabling teams to connect and process data faster without the bottlenecks of traditional ETL.
Challenges:
- Handling massive data volumes
- Complex query optimization
Solutions:
- Built an ElasticSearch-first data layer
- Optimized Celery tasks for parallel data runs
Ready to Work Together?
Let's discuss how I can contribute to your next project or join your team.