i build stuff that works π§ | Engineer @ Xflow Payments β‘ | Cross-Border Payments π | LeetCode Knight (2000+) π‘οΈ | Backend Dev π» | Java | GSSOC β24

Bengaluru, Karnataka, India Β· Hybrid

Bengaluru, Karnataka, India Β· Hybrid


Bengaluru, Karnataka, India

Bengaluru, Karnataka, India

Bengaluru, Karnataka, India







Bachelor of Engineering, Computational Science
B. M. S. College of Engineering
Puc, Science (pcmb)
SBNS PU College Bg nagara
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Download Tal Bossi build stuff that works π§ | Engineer @ Xflow Payments β‘ | Cross-Border Payments π | LeetCode Knight (2000+) π‘οΈ | Backend Dev π» | Java | GSSOC β24
I am a backend-focused Software Engineer with a strong interest in building scalable distributed/ micro-service systems, especially in the payments and financial domain, and applying AI to solve real-world engineering problems. I have solid fundamentals in system design, databases, and distributed workflows, and I enjoy working on problems that demand both reliability and scale. Currently, I work at Xflow Payments, where I design and optimize backend systems powering cross-border payment flows and trading operations. My work includes building and refactoring scalable APIs, implementing limit-order and quote-lock systems that handle multi-million-dollar trading volumes, and ensuring high data consistency using SQL, DDD principle and Protocol Buffers. These systems are designed with a strong focus on correctness, latency, and fault tolerance, which are critical in financial infrastructure. I have also built an AI-based GitHub automation system to review pull requests, reducing operational costs and improving engineering efficiency. This reflects my interest in leveraging AI to enhance developer workflows and system productivity. I am an active open-source contributor through GirlScript Summer of Code (GSSOC), where I have worked on fixing production-level issues, improving backend routing, and collaborating across multiple repositories. I strongly believe in understanding core internals rather than relying only on frameworks. I actively explore AI model behaviour and follow ongoing research in this space. Alongside this, I have a strong problem-solving background. I am a LeetCode Knight with a 2000+ rating and have solved 1000+ problems, which has helped me build a structured approach to solving complex backend and system design challenges. Early in my career, I chose to work in a startup environment over larger organisations to gain deeper exposure, take ownership, and accelerate my learning curve, particularly in high-impact domains like payments. I am always interested in building reliable financial systems, solving challenging backend problems, and exploring the intersection of AI and large-scale infrastructure Computer Science undergraduate who has always been focused on academics and building strong fundamentals. Consistently performed well in studies, scoring 96% in 10th, securing KCET rank 900, and achieving 99% in PCMB (Class 12), showing strong dedication and discipline in education.
Bengaluru
antigravity
claude code
claude
cursor
github copilot
OpenRouter
Member Technical Staff at NetApp, Sep 2026 - Present Β· 1 mo, Bengaluru, Karnataka, India Β· Hybrid
Back End Developer Intern at Xflow, Apr 2025 - Jun 2025 Β· 3 mos, Bengaluru, Karnataka, India Β· Hybrid, wrote some garbage code
Software Engineer Intern at Instawork, Jan 2025 - Apr 2025 Β· 4 mos, β’ Designed and developed backend APIs using Django, improving system scalability and request handling. β’ Built AI-driven automation agents to streamline internal workflows, reducing manual ticket load by 15%. β’ Integrated custom bots with REST APIs to automate repetitive operations and improve system efficiency. β’ Optimized backend logic and resolved production issues, enhancing reliability and reducing failure cases.
AI Trainer and Code reviewer at Scale AI, Oct 2024 - Feb 2025 Β· 5 mos, Bengaluru, Karnataka, India, I worked as an AI Trainer at Outlier, where I reviewed and refined LLM-generated responses for RLHF tasks, ensuring technical accuracy and human alignment. I provided feedback to enhance model outputs' quality and precision, utilizing RLHF techniques in C++, Java, Python, JavaScript, HTML, and CSS.
Flutter UI Developer at Bright Infonet, Jun 2024 - Jul 2024 Β· 2 mos, Bengaluru, Karnataka, India, -Worked as remote intern -Developed UI with Flutter -worked with the team to create desktop applications with responsiveness
Open Source Contributor at GirlScript Summer of Code, May 2024 - Jun 2024 Β· 2 mos, Bengaluru, Karnataka, India, - Implemented routing using Express and Node.js, ensuring efficient server-side navigation. - Identified and resolved numerous bugs across various codebases, enhancing overall software stability. - Added multiple new features to backend systems, increasing functionality and user satisfaction. - Enhanced the app's user interface in Flutter, improving user experience and aesthetic appeal. - Managed databases with MongoDB and SQL, ensuring data integrity and optimized performance.
Bachelor of Engineering, Computational Science, B. M. S. College of Engineering
Puc, Science (pcmb), SBNS PU College Bg nagara
github: https://github.com/subhash23jan
leetcode: https://leetcode.com/subhash613d