ARUN ACHARYA
Bengaluru
Summary
Senior Software Development Engineer with 10+ years of experience designing, building, and scaling distributed, high-availability systems in the FinTech and Digital Banking domains. Strong expertise in system design, API architecture, performance optimization, and secure transaction processing. Proven record of owning end-to-end features, improving platform reliability to 99.9%, and delivering systems that support thousands of users.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Senior Software Engineer
Tyfone CDI Pvt Ltd
05.2015 - Current
- Owned end-to-end delivery of digital banking platforms supporting 10+ credit unions and thousands of active users.
- Designed and implemented REST APIs integrated with ULTRADATA, SYMITAR, and CORELATION core banking systems.
- Improved transaction success rate to 99.9% through robust validation and error-handling.
- Led UX 2.5 and UX 2.6 redesigns, improving user engagement and session retention by ~25%.
- Integrated Zendesk Messaging & Chat, reducing customer support turnaround time by ~30%.
- Designed and delivered a secure Document Center, reducing support dependency by ~35%.
- Integrated DeepTarget personalization platform, increasing campaign engagement by ~20%.
- Led data migration initiatives processing millions of records with zero critical production incidents.
- Mentored 4–6 engineers and conducted design and code reviews, reducing production defects by ~15%.
Office Assistant
Bank of Baroda
New Delhi
09.2013 - 09.2014
- Handled 300+ customer complaints, reducing average resolution time by ~25%
- Supported IT, finance, and marketing teams, improving operational coordination and reporting accuracy by ~20%
Network Support Engineer
HCL Technologies
Noida
01.2013 - 09.2013
- Managed testing and automation of T1 circuits using REACT, improving test execution efficiency by ~30%
- Ensured 100% SLA adherence and maintained production stability across live environments
- Generated daily and weekly productivity reports, supporting cross-functional teams and improving delivery visibility by ~25%
Education
Bachelor of Engineering - Electronics & Communication Engineering
01.2012
Skills
- C# and NET technologies
- SQL and SQL Server
- JavaScript and TypeScript
- HTML5 and CSS3
- AngularJS and Ionic
- WCF and RESTful APIs
- Entity Framework and LINQ
- Distributed systems architecture
- Core banking integrations
- Agile methodologies
- Software development lifecycle (SDLC)
Certification
Microsoft Certified: Azure Fundamentals
System Design Scalability
- Designed scalable service-oriented architectures supporting mobile, web, IVR, and third-party integrations.
- Built fault-tolerant systems using retries, timeouts, and graceful degradation achieving 99.9% uptime.
- Reduced API latency by ~30% through query optimization and caching strategies.
- Designed idempotent workflows ensuring data consistency across distributed services.
- Implemented encryption, authentication, and authorization for financial transactions.
- Improved observability and monitoring, reducing MTTR by ~25%.
Timeline
Senior Software Engineer
Tyfone CDI Pvt Ltd
05.2015 - Current
Office Assistant
Bank of Baroda
09.2013 - 09.2014
Network Support Engineer
HCL Technologies
01.2013 - 09.2013