I architect scalable SaaS, FinTech, and ERP systems — and build the distributed teams that ship them
Engineering Manager and Software Architect with 12+ years of hands-on delivery and 7+ years leading distributed engineering teams for global clients. I specialize in scalable SaaS, FinTech, ERP, and enterprise systems — aligning technology with business strategy and delivering on time, at scale.
I modernize legacy platforms with .NET, Node.js, and React, design cloud-native architectures on Azure with CI/CD, and integrate AI into products where it creates real value — most recently leading the technology for Eyanna AI, a customer-support and sales-automation platform. Across FinTech and enterprise work, I've delivered systems holding 99.9% uptime while reducing time-to-market for new features.
I work remotely with 4–6 hours of daily overlap with US, UK, and European teams, backed by a production-grade home office built for reliability. Whether you need an engineering leader, a software architect, or a consultant to audit and scale an existing system, I can help.
- Rezaul Islam
- dslrezaul
- rezaul0920@gmail.com
- Dhaka, Bangladesh
- 20 Oct, 1989
- +8801731186596
2000
Working Hours55
Total projects12
Years Journey70
Total ClientKey Leadership Metrics
Engineers Led
Managing high-performing distributed remote engineering teams.
Cloud Savings
Optimizing containerized architecture and cloud resources.
Velocity Boost
Streamlining Agile delivery, sprints, and CI/CD pipelines.
System Uptime
Ensuring reliable, fault-tolerant infrastructure and failovers.
Professional Experience
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.
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.
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. 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.
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
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.
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.
Education Details
B.Sc in Computer Science and Engineering
International University of Business Agriculture and Technology (2009-2013)
Higher Secondary
Guthia Ideal Collage, Barisal. (2008)
Secondary School Certificate
Guthia Maheshchandra Secondary School, Barisal. (2006)
Technology is the power of innovation
Expert Consulting Services
Providing high-impact technical consulting, architecture audits, and software engineering leadership to scale systems and build distributed teams globally.
Technical Consulting & Architecture Audits
Auditing existing software architectures for bottleneck resolution, scalability plans, and clean code optimization in .NET Core and enterprise Node.js environments.
- Comprehensive microservice architectural reviews.
- Cloud cost containment and container optimization reviews (AWS/Azure).
- Database index tuning and query bottleneck reports.
Engineering Leadership & Agile Coaching
Helping engineering teams streamline delivery, design reliable sprints, set up robust CI/CD automations, and establish clean development cultures.
- Defining engineering levels, reviews, and metrics.
- Continuous integration pipeline setup (GitHub Actions, Jenkins).
- Transitioning to secure, remote-first development pipelines.
AI Systems & Intelligent Integrations
Designing AI-driven workflows, LLM prompt engineering integrations, vector database setups, and smart search integrations into SaaS and ERP systems.
- Retrieval-Augmented Generation (RAG) system pipelines.
- Automated document classification and OCR pipelines.
- AI Agent workflows for data verification and enrichment.
Interested in working with me?
Enterprise Remote Infrastructure
Equipped with a production-grade enterprise home office setup to guarantee 100% service availability and seamless real-time collaboration with cross-functional teams worldwide.
Redundant Connectivity
Dual-ISP fiber broadband connection (up to 200 Mbps) with automatic failover to a dedicated 4G LTE wireless cellular hotspot backup.
Uninterrupted Power (UPS)
Online Smart-UPS system protecting workstation and network equipment, coupled with a secondary generator power backup system.
Timezone Overlap
Flexible scheduling supporting 4 to 6 hours of daily working overlap with standard USA, UK, and European business timezones.
Professional Workspace
Dedicated noise-controlled office studio, enterprise-grade video conferencing hardware, and high-fidelity noise-canceling microphone setup.
Core Leadership Philosophy
Bridging the gap between engineering tasks and business goals by building asynchronous-first team habits, technical guidelines, and metrics-driven delivery.
Distributed Autonomy
Empowering remote engineers with clear metrics, removing roadblocks, and supporting asynchronous decision-making without micro-management.
Mentoring & Culture
Establishing code review quality baselines, continuous integration testing, and career-growth metrics to scale tech organizations.
Pragmatic Architecture
Balancing technical debt with project deadlines. Designing modular service structures using .NET, React, and serverless automation.
Metrics-Driven Sprints
Measuring sprints by velocity, release quality, and business KPI outcomes rather than simple hours spent at the keyboard.
