FinTech Platform at Scale
Built and scaled a multi-vendor FinTech platform (LENDEN, TeleCash, MyCash) processing ~20M BDT daily transactions without mismatch.
Senior Software Engineer
Shahriar Mahmud
Senior Software Engineer · FinTech & SaaS · Microservices · Enterprise Platforms
6+ years building large-scale FinTech and SaaS platforms with microservices architecture.
Proven track record mentoring teams and delivering reliable, high-availability production systems.
27
microservices (MFS platform)
~20M BDT
daily transactions (TeleCash/MyCash)
6+
years enterprise delivery
Key Achievements
High-impact outcomes from FinTech and enterprise platform delivery.
Full Ecosystem Delivery
Delivered complete fintech ecosystem — 2 web portals, 6 mobile apps, and 27 microservices — with proven engineering contributions for performance and reliability.
Mentoring & Production Ownership
Mentored engineers across development, QA, and operations while taking ownership of complex technical challenges and production issues.
Experience
Senior Software Engineer
CurrentRedDot Digital Limited
November 2022 – Present · Bangladesh
- Contributed to architecture and development of a 27-microservice MFS platform powering LENDEN, TeleCash, and MyCash.
- Led backend development for LENDEN and TeleCash, ensuring scalable, reliable, high-availability financial services.
- Developed multi-platform ecosystem: Angular back office, React user portal, and 6 Flutter mobile applications.
- Designed common service modules reused across multiple MFS platforms.
- Mentored engineers across development, QA, and operations teams.
- Took ownership of complex technical challenges and production issues to ensure timely delivery.
Spring BootJavaKafkaRedisPostgreSQLReactAngularFlutter
Software Engineer
RedDot Digital Limited
July 2022 – December 2023 · Bangladesh
- Developed multi-tenant SaaS platform supporting B2B sales & distribution and e-commerce order/delivery systems.
- Built backend services using Ruby on Rails with scalable tenant-level customization.
- Contributed to shared platform architecture powering multiple products from a single codebase.
- Worked with Next.js storefront, React backoffice portal, and Ruby on Rails backend.
Ruby on RailsNext.jsReactPostgreSQLRedis
Software Engineer
Together Initiatives (p) Limited
March 2020 – June 2022 · Bangladesh
- Customized ProcessMaker BPM platform for Robi enterprise workflow automation — 200+ digital workflows.
- Implemented custom forms, logic, and integrations to support process digitalization.
- Built Spring Boot POS application and bank reconciliation automation.
- Developed middleware APIs for a national secure application using Java.
Spring BootJavaProcessMakerMySQLReactPHP
Skills
Backend & Architecture
Spring BootJavaNode.jsMicroservicesKafkaRedisRESTPostgreSQLMySQL
Frontend
ReactNext.jsAngularTypeScript
Platform & Delivery
DockerCI/CDGitHubFinTechE-CommerceRPA
Leadership
Technical LeadershipMentoringCode ReviewClient Alignment
Projects
Enterprise case studies and platform delivery.
MFS Platform (LENDEN / TeleCash / MyCash)
Build a scalable mobile financial services platform supporting multiple brands with high-volume daily transactions.
Role
Senior Software Engineer — backend architecture & platform delivery
Spring BootKafkaRedisPostgreSQLReactAngularFlutter
Impact: 27 microservices, 2 web portals, 6 mobile apps processing ~20M BDT daily transactions without mismatch.
Sales & Distribution SaaS
Multi-tenant B2B sales and distribution platform requiring tenant-level customization from a shared codebase.
Role
Software Engineer — backend & platform architecture
Ruby on RailsNext.jsReactPostgreSQL
Impact: Shared platform architecture powering multiple products with scalable tenant-level customization.
Enterprise Workflow Automation (Robi)
Automate 200+ internal business processes for a major telecom enterprise.
Role
Software Engineer — BPM customization & integration
ProcessMakerPHPJavaMySQL
Impact: 200+ digital workflows deployed, reconciliation automation, and significant operational efficiency gains.
VAS Content Provider Portal
Streamline communication between VAS team and content providers with role-based access and stage management.
Role
Full Stack Developer
LaravelPHPMySQLProcessMaker
Impact: Enterprise integration with AD/OTP login, five role configurations, and medium-complex stage management per case.
Education
Bachelor of Computer Science and Engineering
January 2015 – February 2020
Rajshahi University of Engineering & Technology (RUET) · Rajshahi, Bangladesh
Research on analysis of cryptography algorithms for data security on cloud.
Contact
Open to senior engineering roles, FinTech platforms, and technical leadership conversations.