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Rezaul Islam

Engineering Manager & Software Architect 12+ years scaling SaaS, FinTech & ERP for global teams · Remote (US/UK/EU overlap) .NET · Node · React · Azure · Odoo · AI Integration

rezaul0920@gmail.com

+8801731186596

Dhaka, Bangladesh

linkedin.com/in/rezaul-isalm-9701b9134

Professional Summary

Accomplished Senior Engineering Manager and Software Architect with 12+ years of hands-on experience (7+ years in engineering leadership) designing, building, and scaling global enterprise SaaS, FinTech, AI, and custom ERP systems. Proven track record of managing high-performance distributed teams, aligning technical decisions with business strategy, reducing cloud infrastructure costs, and accelerating delivery speed. Expert in .NET Core, React, SQL Server, and building production-ready AI/Automation integrations (RAG, OpenAI, Agents).

Professional Experience

Junior Software Engineer

Deshi System Limited

February 2013 - April 2014
  • Supported the development of web applications and internal tools.
  • Gained foundational experience in .NET, SQL Server, and web technologies.

Sr. Software Engineer

K-Securities & Consultant Ltd.

May 2014 - November 2015
  • FinTech Module Engineering: Developed mission-critical financial software modules for the Dhaka Stock Exchange (DSE), including a centralized Bankbook system and high-availability Email/SMS alerting services.
  • High-Volume Data Processing: Optimised SQL databases to handle real-time transaction data, improving query response times by 25% and ensuring 100% data accuracy for financial audits.
  • Automated Reporting Solutions: Designed and implemented automated reporting frameworks that reduced manual reconciliation efforts by 30% for institutional brokerage firms.

Sr. Software Engineer

Interactive Education Concepts, Inc.

June 2019 - December 2019
  • Scalable Feature Engineering: Developed and deployed high-traffic features for a US-based platform serving 200,000+ active users, ensuring 99.9% system availability and performance.
  • Performance Optimisation: Spearheaded backend and database optimisations that improved platform load times by 25%, directly increasing user engagement and retention metrics.

Sr. Software Engineer

ConstantMD Inc.

December 2015 - September 2017
  • Enterprise ERP & Accounting: Architected a modular Accounting & ERP solution using .NET and SQL Server, automating financial reporting and reducing manual data entry by 40% for enterprise clients.
  • Healthcare Systems (HMS): Developed a comprehensive Hospital Management System featuring patient records, billing, and pharmacy modules, ensuring data integrity and 99.9% system uptime.
  • Jorip (Survey/Data Platform): Built Jorip, a scalable data collection and analytics engine, optimizing query performance by 50% to handle large-scale concurrent user sessions.
  • API Integration: Integrated third-party payment gateways and external APIs to enhance the functionality of ERP and HMS platforms for diverse international markets.

Team Lead

ConstantMD Inc.

September 2017 - March 2022
  • Global Project Management: Led a distributed engineering team to deliver mission-critical US Healthcare software, ensuring 100% compliance with industry standards and a 95% on-time delivery rate.
  • Diverse Portfolio Delivery: Directed the full-lifecycle development of high-impact platforms, including Hateemtai (E-commerce), Point of Sale (POS), and Hospital/School Management Systems, focusing on high-availability and multi-tenant architectures.
  • System Modernisation: Enhanced application performance by 35% by implementing scalable architectures and modernising legacy codebases for Accounting and ERP solutions.
  • Technical Mentorship: Mentored a team of junior and mid-level developers, fostering a culture of Clean Code and Technical Excellence, which reduced code review cycles by 20%.
  • Process Optimisation: Championed the adoption of Agile/Scrum methodologies across remote teams, improving sprint velocity and ensuring consistent delivery of high-quality, maintainable code.

Sr. Team Lead

Royex Technologies | Dubai, UAE

June 2020 – February 2023
  • Project Delivery Excellence: Spearheaded the end-to-end execution of multiple high-complexity software projects, maintaining a 95% on-time delivery rate across distributed teams.
  • Agile Team Leadership: Managed cross-functional engineering squads, optimising Scrum and Kanban workflows to increase development velocity by 25%.
  • Stakeholder Alignment: Acted as the primary technical point of contact for global clients, ensuring project scopes were met and business requirements were translated into scalable .NET/Cloud architectures.
  • Strategic Planning: Successfully balanced resource allocation and technical debt management across diverse project portfolios, consistently meeting KPIs for performance and client satisfaction.

Technical Manager

Royex Technologies | Dubai, UAE

March 2023 – Present
  • Engineering Leadership: Directing a cross-functional team of 20+ engineers to deliver high-scale web and cloud solutions for global clients, fostering a culture of technical excellence and innovation.
  • High-Profile Project Delivery: Architected and oversaw the end-to-end development of mission-critical platforms, including the FIFA World Cup Trophy Tour, AFC Champions League, and Eyanna AI, ensuring 99.9% scalability and performance.
  • Architectural Excellence: Championed the transition to modern architectural patterns, including Microservices, CQRS, and Onion Architecture, reducing technical debt and improving system maintainability by 30%.
  • Strategic Oversight: Managed the full Software Development Life Cycle (SDLC) for complex systems like Fleet Management and EventsPro, ensuring on-time delivery within scope for Middle Eastern and international markets.
  • Mentorship & Process Optimisation: Mentored distributed engineering teams in Clean Code principles and Agile methodologies, increasing team productivity and development efficiency by 25%.
  • Product Innovation: Spearheaded the integration of AI/ML solutions into core products (ScoreRecord), aligning cutting-edge technology with business strategy to maximise client impact.

Education

Secondary School Certificate

Guthia Maheshchandra Secondary School, Barisal. (2006)

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Higher Secondary

Guthia Ideal Collage, Barisal. (2008)

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B.Sc in Computer Science and Engineering

International University of Business Agriculture and Technology (2009-2013)

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Technical Expertise & Skills

Core Technologies

C# ASP.NET Core ASP.NET MVC ASP.NET Web API Entity Framework Core Dapper LINQ Background Services SQL Server PostgreSQL MySQL React Angular JavaScript GraphQL Prompt Engineering Artificial Intelligence

Architecture & Patterns

Clean Architecture Microservices Onion Architecture Software Architecture System Design Technical Leadership Engineering Management Agile Scrum Project Management