Thanh TRAN

– Built Najar Agent, a production LLM agent answering procurement questions over live company data: 5 permission-gated read tools (commitments, vendors, savings, shadow IT, purchase projects), streaming with interrupt, CSV export, clarifying questions on ambiguous requests and off-topic guardrails – multi-step tool-calling loop with selective stop conditions. – Optimised agent latency and reliability: built a benchmark harness measuring TTFT, steps, reasoning tokens, prompt-cache hit ratio and per-tool payload size against a real org (311 commitments, 875 vendors), then capped tool payloads to stop them flooding the model context. – Designed the document-extraction pipeline, unstructured documents → schema-validated JSON: AWS Textract (tables + forms) → LLM classification (9 categories → 5 kinds) → gated per-type extraction (hybrid PDF vision + OCR text) → deterministic post-processing. One endpoint, Zod-validated contracts, same pipeline in every environment. – Built the eval loops that keep those features honest: per-field deterministic scorers with a hallucination rate, LLM-as-judge on conversation quality, committed fixtures for offline replay. New vs legacy pipeline benchmarked at 86% vs 84% field accuracy; found and fixed a silently broken suite (0% → 88%). – Own Brief Copilot end-to-end, the conversational intake turning a free-text purchase request into a structured, API-validated brief: LLM-driven track detection (renewal / replacement / new purchase), predictive checklist with conditional skipping, deterministic catalog matching, and commitment linking that stops legacy contracts silently auto-renewing.

– AI Art Generation SaaS – enables users without artistic skills to create high-quality visual artwork. – Intelligent automation: an LLM-powered LoRA selection system that analyses the user prompt and picks the generation parameters, no expert knowledge required. – Scalable AI pipeline: Stable Diffusion XL via ComfyUI + RunPod GPU, real-time webhooks and batch generation. – Full-stack architecture: end-to-end design and development of API (NestJS) + frontend (Next.js 14) + PostgreSQL, JWT authentication and cloud deployment. – Simplified UX: "zero-learning-curve" interface with style presets, hidden advanced parameters and quick preview.

– Led recruitment efforts to expand the frontend team, successfully hiring 6 developers to form a new team and reinforce the existing one. – Managed a team of 9 frontend developers, later restructuring into two smaller teams of 4 to improve efficiency and focus. – Led the team responsible for the site rebranding, ensuring alignment with the company's new identity and delivering a seamless user experience. – Guided the team in building a Design System from scratch, promoting consistency and scalability across all projects. – Led strategies to eliminate technical debt, including migrating from Redux and sagas to React-Query, upgrading major dependencies, and transitioning the project from Razzle to Next.js for improved performance and maintainability. – Maintained website stability with over 1 billion visits and 125k daily active members, ensuring high availability and performance. – Streamlined processes to remove bottlenecks and improve team velocity, fostering a more agile and efficient development environment.

– Managed a team of 4 developers, fostering their growth through mentorship, performance reviews, and providing technical guidance to enhance efficiency and career development. – Collaborated with C-level executives to define, build, and prioritize the product roadmap, ensuring alignment with business goals and delivering high-impact solutions. – Ensured product quality by implementing robust development processes, conducting thorough code reviews, and overseeing the successful deployment of reliable and scalable features. – Acted as CTO during the company's fundraising efforts, directly contributing to investor pitches and technical due diligence to secure funding. – Promoted a culture of collaboration, continuous improvement, and accountability, enabling the team to consistently meet deadlines and exceed expectations.

– Co-created engaging content across Instagram, TikTok, Podcasts and YouTube, and led the artistic direction to establish a cohesive brand presence. – Built a database tracking daily prices of valuable watches, enabling accurate, expert advice to enthusiasts and buyers. – Scaled the TikTok account from 0 to 75,000 followers in 3 months; 26,000 listens on Spotify with 500+ subscribers, and 18,000 listens on Apple Podcast with a 5-star rating.

– Redesigned and developed a new version of the back-office application for the LDMR call center, improving daily workflows for dozens of users. – Defined and implemented the technical stack, selecting Next.js and TypeScript to ensure a modern, scalable, and maintainable solution. – Conducted user interviews to identify pain points and gather requirements, translating them into actionable development plans and UI designs. – Built reusable UI components from Figma designs, ensuring a polished and user-friendly interface tailored to business needs. – Supervised and mentored two junior developers, overseeing their work, conducting code reviews, and ensuring alignment with project goals. – Delivered the project on time with enhanced usability and improved team collaboration through effective leadership and technical decision-making.

– Developed a UI components library with Storybook, ensuring reusable, scalable, and maintainable design elements for consistent user experiences across projects. – Designed and implemented a new listing page, leveraging Next.js, TypeScript, and Algolia to deliver a fast and intuitive browsing experience for users. – Built an email capture funnel to increase visitor engagement and collect leads, utilizing Next.js, GraphQL, and TypeScript for seamless integration and performance optimization. – Collaborated with cross-functional teams to align design, functionality, and user experience goals.

– Developed a reusable charting library built with React.js, Redux, TypeScript, and D3.js to simplify data visualization for developers. Enabled chart creation via JSON configurations, eliminating the need for direct D3.js usage. – Designed and maintained compatibility across multiple projects by handling versioning and releases effectively, ensuring seamless integration and updates. – Optimized performance to address legacy browser issues, including challenges with Internet Explorer 6. – Achieved widespread adoption, with the library being utilized across all company projects, enhancing development efficiency and consistency.