Looking for Software Development Engineer roles focused on scalable backend systems, distributed architectures, and high-impact products. Interested in solving challenging engineering problems, taking ownership, and building scalable applications. Seeking collaborative teams that encourage continuous learning, technical growth, and meaningful product impact.
Sweta Kumari
@swetakumari1
Software Development Engineer at Paytm, 2025 IIT Delhi graduate
What I'm looking for
I am a 2025 graduate from IIT Delhi and currently working as a Software Development Engineer at Paytm. My experience includes building scalable backend systems and developing production-grade applications using Java, Spring Boot, REST APIs, Kafka, Redis, MySQL, and PostgreSQL.
In my current role, I work on designing and optimizing distributed systems with a focus on performance, reliability, and scalability. I have experience building backend services, designing APIs, handling asynchronous communication, implementing caching strategies, and improving application performance for large-scale systems.
Alongside backend engineering, I have a growing interest in Artificial Intelligence and how AI systems are built and deployed at scale. I enjoy exploring AI infrastructure, LLM applications, retrieval systems, and the intersection of AI with distributed systems and data platforms. I actively learn about modern AI technologies and how intelligent systems can be integrated into real-world products to create better user experiences and business impact.
Beyond work, I enjoy deepening my understanding of system design, distributed architecture, observability, and emerging technologies. I am looking for opportunities where I can contribute to building impactful products, solve challenging engineering problems, and continue growing across backend and AI-driven engineering domains.
Experience
Work history, roles, and key accomplishments
Software Development Engineer
Paytm Money Limited
May 2025 - Present (1 year 1 month)
Designed and implemented a high-throughput mandate aggregation API for 10M+ users at 1K+ RPS, enabling account-level mandate segregation and reducing downstream reconciliation overhead across SIP workflows. Built production-grade, event-driven SIP notification services using Kafka with low-latency fault tolerance, idempotent retries, Redis-based state tracking, and Grafana observability for regula
Advanced AI Application Intern
Invisible Technologies
Improved large language model performance by 7% using reinforcement learning with Proximal Policy Optimization (PPO) and custom reward functions aligned to user preferences for fairness and reduced bias. Built an evaluation and optimization data pipeline using 8K human feedback and refined text generation using reward signals and KL-divergence-constrained fine-tuning.
Education
Degrees, certifications, and relevant coursework
Indian Institute of Technology Delhi
Bachelor of Technology (B.Tech), Engineering and Computational Mechanics
2021 - 2025
Grade: CGPA: 7/10
Activities and societies: Achieved top 35 ranking in AMEX Campus Challenge among all IITs/IIMs (2024); selected among top 1% of 100,000+ applicants for Amazon Summer School (2024);
Completed a B.Tech in Engineering and Computational Mechanics at IIT Delhi with a CGPA of 7/10.
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