Hello, I’m Saif Uddin
Senior Software Engineer • Full-Stack Developer
Senior Software Engineer with 9+ years of experience designing and scaling high-performance systems with a strong focus on cloud-native architecture and business-driven solutions.
Current Tech Stack
Senior Software Engineer & Full Stack Developer
Saif Uddin is a Senior Software Engineer and Full-Stack Developer with over 9 years of professional experience building scalable, secure, and high-performance web applications. He specializes in backend systems using Laravel, FastAPI, Node.js, and cloud platforms like AWS and GCP, while also delivering modern frontend solutions with React and Next.js.
Work Experience
Designed and developed scalable enterprise software systems, optimized backend performance, and delivered secure platforms handling high-volume transactions.
Senior Software Engineer
Sulaco Tec (Berlin, Germany)Built high-performance AdTech systems with AI, boosting revenue accuracy and ensuring 99.9% uptime.
Key Achievements
- Built and optimized AdTech systems, including a revenue-critical click-tracking platform, improving accuracy by 30%.
- Automated approval reports and data-monitoring workflows, saving 20+ hours/month of manual effort.
- Implemented AI-powered deal recommendations using OpenAI models to surface the best offers for users.
- Designed and implemented an automated approval data import and task-monitoring system, eliminating manual supervision and improving operational reliability.
- Led testing and debugging efforts, ensuring 99.9% system uptime and compliance with qualitystandards.
Senior Software Specialist
Software Shop Limited (SSL Wireless)Delivered secure, scalable systems that processed BDT 1M+ transactions, reduced errors and response times, and boosted engagement and delivery performance.
Key Achievements
- Built a secure mobile recharge & bill payment system handling BDT 1 M+ monthly transactions with zero data breaches, ensuring 100% financial integrity.
- Developed Dialogflow/NLP chatbot that slashed customer service response times by 40%, significantly improving user satisfaction.
- Led the overhaul of an E-commerce platform, optimizing performance and UX to drive a 25% increase in user engagement and sales conversions.
- Automated the billing management system, reducing manual invoicing errors by 90% and accelerating payment processing by 50%.
- Redesigned the logistics software, cutting inventory discrepancies by 30% and improving on-time delivery rates by 20%.
Senior Software Engineer
ADN DigiNetBuilt scalable enterprise systems, including high-volume messaging and billing platforms, improving automation, reliability, and transaction efficiency.
Key Achievements
- Developed a high-volume messaging portal processing 10K+ SMS and emails daily with 99.5% delivery success.
- Contributed to the development and enhancement of a Hospital Management System, delivering new features and improving existing functionality to support operational efficiency
- Implemented automated billing solutions, reducing human interaction by 70% and improving billing accuracy and processing speed.
Senior Software Engineer
Belogin Technologies Ltd.Delivered secure enterprise systems with high reliability, automation, and significant reductions in processing time and data errors.
Key Achievements
- Built a secure pension management system for 10,000+ bank employees with 99.9% uptime.
- Automated pension calculation workflows, reducing processing time by 35% while eliminating manual calculation errors.
- Developed a pharmaceutical quality control system, reducing data discrepancies by 50% and improving data reliability.
Software Engineer
Akash TechnologyImproved GPS tracking accuracy, automated data workflows, and optimized dashboards—reducing manual effort and boosting reporting performance.
Key Achievements
- Improved GPS tracking accuracy by 20% through real-time tracking enhancements.
- Reduced manual operational effort by 25% by automating data processing workflows.
- Increased report generation speed by 30% by optimizing dashboard performance and queries.
Skills
I build scalable, cloud-native applications with a strong focus on performance, reliability, and clean architecture.
Frontend
Backend
CMS
Databases
Cloud & DevOps
Tools & Practices
Education
Professional Master of Science (M.Sc.) in Computer Science
Jahangirnagar University • Dhaka, Bangladesh
Key Focus Areas
Research Project: Online Billing Solution
Bachelor of Science in Computer Science and Engineering
Dhaka International University • Dhaka, Bangladesh
Key Focus Areas
Research Project: Online School Management System
Higher Secondary Certificate (HSC)
Chowmuhani Government Saleh Ahmed College • Noakhali, Bangladesh
Key Focus Areas
Group: Science
Secondary School Certificate (SSC)
Choumuhoni Madan Mohon High School • Noakhali, Bangladesh
Key Focus Areas
Group: Science
Training & Certifications
Continuous learning through professional training and industry-recognized programs
MongoDB
Tecognize Solutions Limited
NoSQL Database Design, Aggregation, Indexing, Performance Optimization
Java Enterprise Edition with Spring Framework
IBCS-PRIMAX Ltd
Servlet, JSP, JSF, Spring MVC, Server-side Web Applications
Android Application Development
BDjobs Training
OOP, Databases, BroadGCM, Android SDK
Web Application Development in ASP.NET
BASIS Institute of Technology & Management (BITM)
HTML, CSS, JavaScript, jQuery, Bootstrap, C#, SQL Server
OOP (MVC) PHP with CodeIgniter
Bangladesh Association of Software and Information Services (BASIS)
OOP, MVC Architecture, PHP, MySQL, CodeIgniter
Search Engine Optimization (SEO)
Ministry of Information & Communication Technology
SEO, SMM, Google Analytics, HTML Meta Optimization
9+
Years of Experience
30+
Successful Projects
99%
Client Satisfaction
Continuous
Learning
Get In Touch
Open to remote, hybrid, and on-site opportunities.
If you are a software company, startup, or recruiter looking for a Senior Software Engineer or Full-Stack Developer, feel free to reach out.
Let’s ConnectPhone
+880 1827 230806Location
Dhaka, BangladeshOpen to Discussions About
- Full-stack software engineering roles and collaborations
- Technical consulting and system architecture reviews
- Team leadership, mentoring, and engineering growth
- Remote or hybrid work opportunities