Open to Freelance & Contract Work

Senior Software Engineer & Technical Lead

Software Engineer with 9+ years building production-grade systems across FinTech, GovTech, ERP, EdTech, and SaaS. Expert in C# (.NET Core), Java Spring Boot, and Python — specialising in Agent Banking, eKYC, AML Compliance, and AI-driven analytics. Technical leader who architects scalable multi-tenant platforms and delivers complex enterprise projects end-to-end.

Engineering Manager @ Wyze Tech · Visiting Instructor @ Bangladesh Institute of Management (BIM) · Open to Freelance & Contract

kawser2133@gmail.com linkedin.com/in/kawser2133 github.com/kawser2133 Download CV (PDF)

Years of Experience

20+

Major Projects

300+

GitHub Stars

2×

Top Performer

Skills & Technologies

Category	Skills
Languages	C#JavaPythonJavaScript
Frameworks	ASP.NET CoreSpring BootFastAPINode.jsDjango.NET Framework
Frontend	React.jsAngularAngularJSHTML5 / CSS3Bootstrap
Databases	MS SQL ServerOracleMySQL / MariaDBPostgreSQLMongoDBRedis
Architecture	MicroservicesClean ArchitectureREST / Web APIMulti-Tenancy
Messaging	Apache KafkaRabbitMQElasticsearch
DevOps & Tools	DockerKubernetesGitHub / GitLabGrafanaSeqJira
AI & API Services	Claude APIOpenAI APIGemini APIOCR / Vision AIBiometric APIs
Domain	FinTechAgent BankingERPeKYC / Digital OnboardingAML ComplianceSaaS / Multi-TenantEdTech / LMSGovTechHealthcareE-Commerce
Process	Agile / ScrumTDDCode ReviewTechnical Mentoring

What I Offer

Enterprise API & Backend Development

Production-grade APIs and backend systems using .NET Core, Java Spring Boot, and Python — clean architecture, microservices patterns, and multi-tenant design for scalable platforms.

SaaS Platform Architecture

End-to-end SaaS development from architecture to delivery — tenant isolation, RBAC, subscription billing, audit logging, and scalable cloud infrastructure.

Custom Business Software

Tailor-made web applications for any business need — management systems, ERP modules, dashboards, workflows, and reporting tools built to your exact requirements.

AI & LLM Integration

Embed Claude, GPT, and Gemini into business workflows — AI-driven analytics, document intelligence, OCR pipelines, and conversational decision-support interfaces.

Technical Leadership & Consulting

Architecture reviews, technology roadmaps, and hands-on engineering mentorship — helping teams move faster with better decisions and higher code quality.

Third-Party Integrations & Reporting

Connect your platform to payment gateways, SMS/email services, government APIs, and external systems — plus automated report generation and scheduled data exports.

Key Projects

Frappe FrameworkPythonJavaScriptMariaDBMulti-TenantCloud

wyzerp™ — Enterprise SaaS ERP Platform

Enterprise SaaS ERP platform covering Finance, HRMS, Supply Chain Management, Learning Management, and Payroll — deployed in multi-tenant cloud with full tenant data isolation and per-tenant configuration.
Modular architecture supports independent development, deployment, and scaling of each business domain; integrated RBAC, audit logging, and operational monitoring across all tenants.
Automated tenant provisioning enables onboarding new organisations without downtime; built-in platform security, compliance controls, and high-availability infrastructure.

Java Spring BootReact.jsOracleRedisKafkaMicroservices

Food Stock & Market Monitoring System (FSMMS)

National digital platform for food procurement, stock management, distribution tracking, and real-time market price monitoring — serving 7,000,000+ beneficiaries across government agencies and stakeholders nationwide.
Event-driven microservices architecture with Kafka for high-throughput data pipelines; Redis caching ensures real-time price feed updates across all districts with sub-second latency.
Centralised visibility across the entire food supply chain — from procurement to warehouse stock levels to last-mile distribution — with configurable alert thresholds and compliance reporting for government oversight.

ASP.NET CoreOracle / MSSQLAngularRedisRabbitMQ

Agent Banking Platform

Enterprise banking platform deployed at 3 banks — enabling financial inclusion via door-to-door banking agents with customer and account management, core banking API integration, all major transaction types, utility bill payments, and remittance.
FDR/DPS module with maturity tracking, loan management with disbursement and repayment workflows, and NID-based biometric authentication (fingerprint + face) integrated with the Bangladesh Election Commission database.
Redis-backed session management ensures high concurrency across thousands of simultaneous agent transactions; dual-database support (Oracle/MSSQL) for flexible bank-side deployments.

ASP.NET CorePythonOracle / MSSQLAngularOCRFace Match

Digital Onboarding & eKYC Solution

AI-driven eKYC platform for NID-based digital customer onboarding — reduced onboarding from days to minutes through automated OCR, face matching, and fingerprint biometrics.
Python-powered document intelligence layer extracts and validates NID data; face match engine compares live selfie against NID photo with liveness detection.
Seamlessly integrated into the Agent Banking and core banking workflow for regulated onboarding of banking clients.

Node.jsReact.jsMySQLZoom APISSLCommerzTrinity Similarity

EduFlex — Digital Learning Management Portal

Delivered a fully digital LMS at eduflex.bim.gov.bd for BIM — course management, live class scheduling, instructor profiles, and student progress tracking.
Integrated Zoom API for live virtual classes; SSLCommerz payment gateway for enrollment fees; Trinity similarity check for plagiarism detection on submitted assignments and exam answers.
Proctored online exam engine with timer, randomised question sets, and auto-grading; automated certificate generation on course completion.
Multi-role portal (Admin, Instructor, Student) with responsive public website; deployed for BIM's national professional training programmes.

Python FastAPIReact.jsPostgreSQLPandas / SciPyData AnalyticsREST API

International Research Data Collection & Analysis Platform

Global research data collection platform with multilingual survey builder — branching logic, Likert scales, matrix grids, multi-section forms, and field validation rules.
Automated statistical analysis engine (mean, standard deviation, cross-tabulation, correlation, trend charts) powered by Python Pandas and SciPy; results rendered in an interactive React dashboard.
Exportable PDF and Excel reports with branded layout; role-based access for researchers, reviewers, and administrators across multiple countries.
Integrated third-party email notification services and webhook callbacks for real-time response alerts to research coordinators.

ASP.NET MVCKafkaElasticsearchMSSQLREST API

AML Compliance System

Compliance solution for regulated financial institutions — automated transaction monitoring, customer due diligence, and AML risk screening aligned with Bangladesh Financial Intelligence Unit (BFIU) guidelines.
Kafka-driven event streaming for high-volume real-time transaction ingestion; Elasticsearch for fast full-text search across customer and transaction records.
Configurable rule engine for suspicious transaction detection; automated STR (Suspicious Transaction Report) generation for compliance officers.

ASP.NET CoreAngularPostgreSQLAudit LoggingREST API

Dynamic Archiving Service

Configurable database archiving solution with flexible DB connections, scheduled archiving jobs, table-level selection, and robust audit logging — deployed for government and enterprise clients.
Archived data remains queryable and restorable through a secure API; full record-level versioning ensures compliance and traceability.
Dramatically reduces live database size and improves query latency without any changes to consuming applications.

Java Spring BootReact.jsMSSQL / Oracle / MySQLJasperReportsChart.jsREST API

Dynamic Reporting Service & Business Intelligence Tool

Database-agnostic reporting engine built on Java Spring Boot — connects to MSSQL, Oracle, and MySQL through configurable data-source profiles without any code change.
Drag-and-drop report designer with grouping, aggregations, drill-down, and parameterised filtering; exports to PDF, Excel, and HTML via JasperReports.
KPI dashboards with Chart.js visualisations and scheduled automated report delivery via email; adopted across Finance, HR, and Operations departments.

Java Spring BootReact.jsMySQLWebSocketGPS / MQTTMulti-Tenant

Multi-Tenant GPS Fleet Tracking System

Multi-tenant fleet management platform — real-time GPS vehicle tracking via MQTT protocol with WebSocket-based live map updates on the React dashboard.
Vehicle and driver management, route planning, geo-fence alerts, trip history replay, and fuel consumption reporting per tenant organisation.
Tenant isolation with separate fleet configurations, alert thresholds, and branded portals; scalable across logistics companies, transport operators, and corporate fleets from a single deployment.

ASP.NET Core.NET FrameworkPostgreSQLBiometric APIElection Commission API

Fingerprint Verification Service

Generic fingerprint verification service integrated with the Bangladesh Election Commission (EC) database — deployed for banking onboarding, agent authentication, and loan borrower verification.
Exposed as a secure REST API consumed by multiple banking systems; supports both online and fallback verification modes for network resilience.

ASP.NET CorePythonReact.jsPostgreSQLOpenAI / Gemini / Claude

AI-Driven Business Analytics SaaS Platform

SaaS platform that ingests business data and generates fully AI-driven analytical reports — covering KPIs, trend charts, correlational tables, automated insights, and actionable recommendations.
Multi-model AI integration (OpenAI GPT, Google Gemini, Anthropic Claude) — users select their preferred model and interact with the analysis through a conversational decision-support interface.
Python FastAPI microservice handles data processing, statistical computation, and LLM prompt orchestration; ASP.NET Core manages business logic, multi-tenancy, and API gateway.
Subscription-based SaaS with tenant isolation, usage metering, and a React self-service dashboard for on-demand report generation and AI-assisted decision making.

Python DjangoAngularMySQLREST APIChart.js

Project Management Information System (PMIS)

Centralised web-based system for monitoring ongoing government programmes — project tracking, milestone management, beneficiary profiling, and activity reporting.
Angular dashboard with Chart.js visualisations for programme KPIs; role-based access for field officers, district managers, and central administrators.
Python Django backend with configurable reporting templates; exportable reports used for ministry-level decision-making and donor reporting.

ASP.NET CoreAngularPostgreSQLMulti-TenantPayment GatewaySMS / Email

Multi-Tenant Institute Management System

Multi-branch institute management platform covering admissions, student records, class scheduling, attendance, exam grading, fee collection, and certificate generation.
Role-based portals for Admin, Teacher, Student, and Parent; automated SMS and email notifications for fee dues, exam results, and events via third-party gateway integrations.
Tenant isolation with per-branch branding, custom fee structures, and independent academic calendars — scalable across a network of institutes from a single deployment.

ASP.NET CoreReact.jsPostgreSQLBiometric IntegrationPDF GenerationREST API

Automated Payroll & HR Management System

End-to-end HR platform: employee onboarding, leave management, attendance capture via biometric device and manual override, and fully automated monthly payroll processing.
Configurable salary structures with basic pay, allowances, deductions, income tax slabs, and provident fund; automated payslip generation as downloadable PDF.
Management dashboards for headcount analytics, leave balances, and payroll cost summaries; bank payment file export (EFT format) for direct salary disbursement.

Node.jsReact.jsMySQLSSLCommerzREST APISMS / Email

B2B E-Commerce & Inventory Platform

Full-cycle B2B commerce platform: product catalogue with tiered pricing, purchase order workflows, multi-level approval chains, invoicing, and delivery tracking.
Real-time inventory management with low-stock alerts, warehouse bin management, and automated supplier reorder triggers; integrated SSLCommerz payment gateway.
Separate buyer and supplier portals with role-based access; automated order-status notifications via SMS and email through third-party gateway integrations.

Java Spring BootReact.jsPostgreSQLGPS TrackingMobile APIREST API

Field Force & Sales Activity Management System

Real-time GPS tracking of field agents with route planning, geo-fenced check-in/check-out, and visit-log capture through a mobile-optimised REST API.
Sales target vs. achievement dashboards, daily call reports, beat-plan management, and supervisor approval workflows built in React.
Offline-capable mobile API syncs visit data when connectivity is restored; automated attendance and performance reports delivered to management daily.

Python DjangoAngularPostgreSQLREST APIPDF / Lab ReportsSMS Alerts

Clinic & Healthcare Management System

Complete clinic management covering patient registration, appointment scheduling, doctor consultation records, prescription management, and follow-up reminders.
Lab test ordering and result entry with automated PDF report generation; SMS alerts via third-party gateway notify patients when reports are ready for collection.
Integrated billing and invoicing module with insurance claim tracking and revenue analytics dashboards for clinic administrators.

ASP.NET MVCMSSQLAngularJSBootstrap

aPOP — Full-Featured ERP System

Contributed to aPOP — a full-featured ERP covering HR, Accounting, CRM, Inventory, Planning, and Production modules for enterprise clients.
Developed and maintained core modules, resolved performance bottlenecks, and participated in client-facing requirements gathering and delivery.

Open-Source Contributions — 300+ GitHub Stars

github.com/kawser2133

ASP.NET CoreAngularClean ArchitectureMulti-TenancyDockerSQL ServerREST API

saas-base

Production-ready multi-tenant SaaS foundation structured across Domain, Application, Infrastructure, and API layers; widely used as a starting point for enterprise SaaS projects.

Featured

clean-structured-project

Reference implementation of Clean Architecture with ASP.NET Core; one of the most starred .NET clean architecture templates on GitHub.

100+ ★

web-api-project

Practical Web API boilerplate with best-practice patterns for production-grade REST API development in .NET.

100+ ★

Professional Experience

Dhaka, Bangladesh

Wyze Tech Ltd

Engineering Manager Oct 2025 – Present

Define and drive architectural direction and technical strategy for wyzerp™ — an enterprise SaaS platform (Finance, HRMS, SCM, LMS, and other modules) deployed on Cloud in multi-tenant mode.
Lead and coordinate cross-team engineering initiatives spanning multiple concurrent projects.
Mentor engineers across the organisation and continuously raise the engineering quality bar.
Own multi-tenant infrastructure security, scalability, and platform uptime.

Dhaka, Bangladesh

GIGA TECH Limited

Staff Software Engineer May 2025 – Sep 2025

Senior Software Engineer Dec 2023 – Apr 2025

Led design and development of the Food Stock and Market Monitoring System (FSMMS) — a national-scale government digital platform for food procurement, stock management, and distribution. Stack: Java Spring Boot, Angular, Oracle, Redis, Kafka.
Contributed to Digital Onboarding (eKYC) platforms and AML Compliance system, enhancing regulatory compliance and enabling secure, efficient customer onboarding for banking clients.
Delivered a Fingerprint Verification Service integrated with Bangladesh Election Commission (EC) database for banking authentication and loan borrower verification.
Built a configurable Dynamic Archiving Service supporting scheduled data migration, flexible DB connections, and robust audit logging.
Conducted architectural reviews, requirements analysis, and cross-team code quality assessments.

Dhaka, Bangladesh

DataSoft Systems Bangladesh Limited

Senior Software Engineer Jan 2022 – Nov 2023

Software Engineer Apr 2019 – Dec 2021

Agent Banking: Built end-to-end banking agent platform — customer/account management, core banking API integration, all transaction types, utility billing, remittance, FDR/DPS, loan management, and NID biometric verification (fingerprint + face). Stack: ASP.NET Core, Oracle/MSSQL, Angular.
Digital Onboarding & eKYC: Designed an AI-driven platform using OCR, face matching, and fingerprint biometrics — reduced customer onboarding from days to minutes. Stack: Python, ASP.NET Core, Oracle/MSSQL, Angular.
AML Compliance: Built transaction monitoring, customer due diligence, and automated screening modules for financial risk mitigation. Stack: ASP.NET MVC, Kafka, Elasticsearch, MSSQL.
Led R&D, drove advanced feature development, mentored junior developers, and delivered client training across branch rollouts.

Dhaka, Bangladesh

APLOS Global Limited

Software Engineer Jan 2017 – Mar 2019

Contributed to aPOP — a full-featured ERP covering HR, Accounting, CRM, Inventory, Planning, and Production modules. Stack: ASP.NET MVC, MSSQL, AngularJS, Bootstrap.

Dhaka, Bangladesh

UY Systems Ltd

Software Developer Oct 2016 – Dec 2016

Built Inventory Management Software — Requisition, Purchase Orders, Stock Workflow, Transfer, and Reporting. Stack: ASP.NET MVC, MSSQL, JavaScript, Bootstrap.

Dhaka, Bangladesh · Hybrid

Bangladesh Institute of Management

Visiting Instructor Contract Oct 2016 – Present

Conduct technical training sessions on digital tools, data collection platforms, and analysis techniques for professionals in Project Management, Monitoring & Evaluation, and Supply Chain Analytics.
Hands-on workshops covering Kobo Toolbox, ODK, Excel/VBA, Power BI, and statistical methods — enabling data-driven decision-making for government and NGO practitioners.
9+ years of continuous engagement training mid-career professionals across public sector, development agencies, and corporate organisations;