Headline

Software Engineer @Delhivery | Fintech | Former Developer Intern @Delhivery, @Caloriegino, @HowToAlgo | Full-Stack Developer (Mobile & Web) | CSE Undergrad @NIT Jamshedpur (2022-2026)

About

I’m Hamad Ahmad Ansari, a final-year Computer Science and Engineering undergraduate at NIT Jamshedpur, passionate about full-stack development, scalable systems, and building production-ready applications across web and mobile platforms. Over the past year, I’ve interned at two startups — CalorieGino, where I helped build a cross-platform calorie and health tracking app, and HowtoAlgo.com, where I contributed to a DSA learning platform used by hundreds of learners. Beyond internships, I’ve built several hands-on projects like: • PlacePrep — an AI-powered interview preparation platform with real-time proctoring and coding practice. • Connectify — a real-time social networking app leveraging sockets and efficient backend communication. I enjoy solving complex problems, working with collaborative teams, and taking ownership from ideation to deployment — ensuring every system I build is scalable, stable, and impactful.

Location

Jamshedpur

AI stack

cursor

opencode

Work experience

Software Engineer at Delhivery, Jul 2026 - Present · 2 mos, Hybrid

Software Engineer Intern at Delhivery, Jan 2026 - Jun 2026 · 6 mos, On-site, Joined as a Software Developer Intern at the Fin Tech team under Financial Services Division. Currently Working on backend systems powering fleet fintech solutions such as FASTag & Fuel Card infrastructure, enabling seamless toll payments, lending workflows, and dispute management at scale. ⚙️ Key Contributions • Designed and built a scalable Flask-based microservices architecture serving 3,000+ fleet owners, processing 1M+ monthly financial transactions across FASTag recharges, fuel cards, and lending workflows • Engineered a Kafka based event driven processing pipeline handling 100K+ transactions/day, enabling asynchronous webhook ingestion with retry mechanisms and Dead Letter Queues (DynamoDB) for fault tolerance. • Optimized existing Onboarding workflow by developing a configuration-driven onboarding framework, reducing onboarding and new services integration time by 60% by introducing automated KYC reuse (PAN/GST autofill). • Integrated external banking systems (IDFC & Axis Bank APIs) for real-time toll tracking, and built an internal dispute resolution system, improving issue resolution time by 40%. • Led migration of existing from EKS (Devtron) to a more secure and robust environment ECS/EC2, achieving 30% cost reduction while maintaining 99.9% uptime through improved VPC isolation and IAM-based security. • Implemented CI/CD pipelines using GitHub Actions, slashing deployment failures and manual effort by 50%. • Integrated Sentry & Coralogix for real-time monitoring, significantly improving debugging speed and system observability. Tech Stack Python (Flask) • Kafka • AWS (ECS, EC2, Redis, RDS) • Microservices • REST APIs • GitHub Actions • Sentry • Kubernetes

Software Development Engineer at Caloriegino, Jul 2025 - Oct 2025 · 4 mos, Remote, At CalorieGino, I took full ownership of building and launching the MVP of a cross-platform Calorie & Health Tracking app, transforming an early-stage concept into a fully functional, production-ready product used across both iOS and Android. 💡 Key Contributions: • End-to-End Mobile Development: Designed, developed, and deployed the entire mobile stack — from onboarding flows to real-time health tracking dashboards — ensuring seamless performance and intuitive UX. • Feature Ownership: Led the development of 4+ core features, including Health Tracking, Payment Plans, Recipe Section, and Authentication, driving a 35% boost in user engagement and consistent feature adoption across platforms. • Backend Integration: Partnered closely with the backend team to integrate APIs built with FastAPI and MongoDB, optimizing data flow and cutting average response latency by 25%, resulting in a 40% improvement in user satisfaction. • Scalability & Quality: Proactively identified architectural bottlenecks and implemented performance improvements that ensured app stability, scalability, and high-quality releases under tight deadlines. • Collaboration & Impact: Worked in an agile environment, contributing to sprint planning, testing pipelines, and deployment workflows, while actively collaborating with designers and backend engineers to deliver a cohesive product experience. 🛠️ Tech Stack: React Native, TypeScript, FastAPI, MongoDB, REST APIs, Expo, Redux Toolkit

Technology Developer Intern at Anuvrittiksha Edtech, Nov 2024 - Feb 2025 · 4 mos, Remote, At HowtoAlgo.com, I contributed to building a structured, engaging learning platform for Data Structures, Algorithms, and System Design, aimed at simplifying complex technical concepts for 100+ students and learners across India. 💡 Key Contributions: • Content Engineering: Developed and delivered 15+ in-depth Java scripts and algorithmic tutorials, bridging the gap between theoretical understanding and hands-on coding. These resources significantly enhanced learners’ grasp of DSA and System Design fundamentals. • Quality Assurance & Improvement: Conducted rigorous QA reviews for 20+ educational tutorials, identifying inconsistencies and improving accuracy, resulting in a 35% reduction in instructional bugs and smoother learning experiences. • Agile Workflow & Documentation: Streamlined development workflows by managing 30+ weekly sprint tasks using Jira, while maintaining structured documentation on Confluence — ensuring transparency, accountability, and alignment across content and tech teams. • Cross-functional Collaboration: Worked closely with the content, engineering, and product teams to ensure that every learning module met technical accuracy, pedagogical clarity, and design consistency. 🛠️ Tools & Technologies: Java, Jira, Confluence, Git, GitHub, System Design Principles, Data Structures & Algorithms and documentation through Confluence.

Education

Bachelor of Technology - BTech, Computer Science, National Institute of Technology Jamshedpur

High School, DPS - MIS, Doha Qatar