Hasan Tatar

• Designed a two-plane architecture separating high-frequency location telemetry (HTTP API, Lambda, DynamoDB) from consistency-critical CRUD and live subscriptions (AWS AppSync GraphQL), across 5 CDK stacks and 48 resolvers.
• Encoded regulatory hours-of-service limits as a unit-tested pure module, including multi-driver crew math where a two-driver crew is legal on combined remaining hours neithe

• Built the orchestration layer of an async AI customer-service pipeline (FastAPI, async SQLAlchemy, PostgreSQL) ingesting HMAC-verified webhooks from four messaging channels through a ten-stage turn: security filter, intent classification, order lookup, model reply, output validation, send, persist, escalate.
• Cut model spend by short-circuiting intent classification with two zero-token heuristi

• Built web interfaces with interactive 3D rendering for geospatial data visualization, and full-stack features across the network's product from data layer to client.
• Built an industrial electrical distributor's website and migrated its catalog off a legacy Laravel CMS: an ETL
parsing 2,798 bilingual records across 266 categories into 1,875 deduplicated products, with shared canonical and hrefl

Worked as Freelance Software & AI Engineer at Independent contractor.

• Maintained integrations between AI tooling and downstream business systems to cut recurring manual overhead.
• Designed and shipped automation workflows for AI-driven client operations.

• Delivered end-to-end software and automation projects, from scoping to deployment.
• Led a small engineering team and handled client-facing technical discussions.
• Managed multiple parallel client engagements across the project lifecycle.

• Developing and maintaining websites to enhance user engagement and streamline company operations.
• Designed, built, and maintained the organization's website.

• Collaborated on image processing projects, integrating hardware and software solutions for global airway companies.
• Utilized ESP, AD, and ADS modules to enhance system performance and reliability.
• Designed a fully functional machine learning model and its pipeline, gaining valuable hands-on experience.
• Developed skills in software development, hardware integration, and teamwork withi

• Collaborated on image processing projects, integrating hardware and software solutions for global airway companies.
• Developed skills in software development, and teamwork within a dynamic company environment.

I successfully created two engaging video games that highlight my passion for game development and creativity.

• Developed an isometric Pokémon-like game, immersing players in a vibrant fantasy world.
• Designed a fully 2D office-themed game, incorporating innovative gameplay elements to enhance user experience.
• Utilized programming skills and artistic design to bring both games to life,

• Collaborated with teams to gather resources and funds for children in need.
• Engaged with local communities to raise awareness about children's issues.
• Developed strong communication and interpersonal skills while advocating for vulnerable populations.

• Collaborated with the data analysis team to support various projects, enhancing my understanding of data methodologies.
• Gained hands-on experience with .NET and web technologies, contributing to the development of internal tools.
• Engaged in data-driven decision-making processes, improving my analytical skills in a fast-paced startup environment.

Issued Jun 2026

Issued May 2026

Issued Jun 2026

Issued May 2026

Issued May 2026

Issued May 2026

Issued May 2024