Bilawal A. is a highly proficient software engineer with extensive experience in C++, Node.js, SQL, Java, JNI, MediaCodec, OpenGL ES, CUDA, and Flutter. He has recently worked as a Financial Systems C++ Developer, where he integrated ISO 20022 and SWIFT MT message formats with major payment schemes like FedNow, Fedwire, and TCH-RTP, successfully connecting to core banking systems such as Fiserv, Jack Henry, and Kinectiv while implementing robust transaction fraud detection solutions. At Beyond Apps Group, Bilawal excelled… Show more

1. FINANCIAL SYSTEMS C++ DEVELOPER

   TRANSACT ELEKTRONISCHE ZAHLUNGSSYSTEME GMBHFeb 2024 — Present

   • Integrated with ISO 20022 message formats for payment schemes including FedNow, Fedwire, and TCH-RTP.
   • Integrated with SWIFT MT message format to enable cross-border payment functionality.
   • Fully integrated with core banking systems—including Fiserv, Jack Henry, and Kinectiv—to process transactions by deducting funds from remitter accounts and crediting beneficiary accounts.
   • Integrated with in-house transaction fraud detection to flag suspicious transactions before system entry, including an optional feature for business users to manually inspect flagged transactions.
   • Designed and maintained Node.js-based simulators for multiple payment schemes and core banking systems, enabling testers to perform end-to-end transaction validation without impacting live environments.
   • Cached static SQL query results in memory to accelerate data retrieval, improving GET API call performance by over 100%.
   • Optimized a critical SQL query executed during transactions, increasing throughput by over 10 transactions per second.
   • Collaborated with the team lead in Agile sprint planning by prioritizing tasks and matching them to team members’ skillsets, reducing sprint planning meeting time by nearly 50% through pre-assignment and pre-estimation of tasks.

   C++Node.jsSQL
2. COMPUTER VISION C++ DEVELOPER

   BEYOND APPS GROUPFeb 2023 — Dec 2023

   • Collaborated with the frontend Java team to integrate native multimedia features into an Android app using JNI (Java Native Interface).
   • Implemented real-time video rendering and effects using MediaCodec and OpenGL ES for smooth 60 frames-per-second playback across Android devices.
   • Developed a custom MP3 audio parser to fix MediaCodec inconsistencies on low-end devices, resulting in 100% crash reduction while playing MP3 audio on mobile phones.
   • Worked with Google's Oboe library to reduce crashes by more than 50% on multiple phones from various vendors (Samsung, Xiaomi, Vivo, etc).

   C++JavaJNIMediaCodecOpenGL ES
3. Freelancer

   FREELANCINGSep 2017 — Jun 2022

   • Developed a CUDA-accelerated implementation of Bitcoin Improvement Proposal (BIPS) standards (BIP0039 and BIP0044) for efficient cryptographic key generation.
   • Created a custom C++ bigint library to support RSA encryption, removing dependency on external libraries like OpenSSL.
   • Designed and implemented custom memory allocator using fixed-size blocks as an alternative to malloc(), realloc(), and free() for restrictive environments, improving allocation and de-allocation efficiency.

   CUDAC++RSA encryption

1. BACHELORS OF ENGINEERING IN SOFTWARE ENGINEERING

   National University of Science and TechnologyPakistan2018 — 2022