Backend platform
- C#, .NET 6/8/10, ASP.NET Core, ASP.NET MVC
- REST APIs, ASP.NET Core Web API, WebSockets
- OpenAPI, Swagger, Scalar
Senior Software Engineer (C#/.NET) · AI Infrastructure & Integration Engineer · FinTech systems
Mohammad Mahdi Ahmadi
Senior Software Engineer building financial backends and AI integration layers that stay fast, observable, and ready for real business workflows.
I build ASP.NET Core APIs, microservices, event-driven workflows, and production-ready integrations for FinTech and cryptocurrency platforms, with a growing focus on LLM-powered business systems.
8+
years in backend engineering
10+
legacy modules modernized
100+
pull requests reviewed
Engineering profile
Backend ownership with production context.
Senior Software Engineer and AI Infrastructure & Integration Engineer with 8+ years of experience building backend systems for FinTech and cryptocurrency platforms using C# and .NET.
Experienced in ASP.NET Core APIs, microservices, distributed systems, data services, systems integration, observability, and production operations, with practical focus on LLM workflow integration, AI orchestration, tool calling, and API/database boundaries for enterprise-ready AI systems.
- Core stack
- C#, .NET 6/8/10, ASP.NET Core, SQL Server
- System style
- Microservices, event-driven workflows, integration boundaries
- Operating mode
- Observability, code review, documentation, release support
Technical operating system
Skills grouped by the way systems are built, shipped, and kept alive.
Architecture
- Microservices, Distributed Systems, DDD, CQRS
- Clean Architecture, SOLID, Design Patterns
- Event-Driven Architecture, Outbox Pattern, Idempotency
Data, messaging, security
- SQL Server, EF Core, Dapper, ADO.NET
- Redis, MongoDB, SQLite, RabbitMQ, MassTransit
- OAuth2/OIDC, JWT, Duende Identity Server, Duende BFF
Delivery and quality
- Serilog, OpenTelemetry, Grafana, Prometheus, Kibana
- xUnit/NUnit, Moq, unit and integration testing
- Docker, Kubernetes/K8s, GitHub Actions, GitLab CI, CI/CD
AI infrastructure and integration
- LLM workflow integration, chatbot platforms, prompt engineering, tool calling, and orchestration pipelines.
- API/database integration, retrieval system concepts, vector database awareness, and MCP-compatible service boundaries.
Frontend working knowledge
- ASP.NET MVC, HTML, CSS, JavaScript
AI infrastructure & integration
Connecting LLMs to real business workflows.
I design AI features as part of backend systems, not as isolated demos. The focus is on the infrastructure around LLM-powered workflows: chatbot platforms, controlled tool calling, API and database integration, retrieval flows, and orchestration pipelines that can fit enterprise software environments.
Chatbot platforms
Implementing chatbot platforms that connect users to business data, internal APIs, and controlled workflow actions.
LLM workflow integration
Integrating LLMs into enterprise workflows with prompt design, tool calling, validation steps, and backend service boundaries.
Retrieval and knowledge systems
Working with retrieval patterns, vector database concepts, indexed knowledge sources, and API/database-backed context.
MCP-compatible architecture
Designing tool and service boundaries that can support MCP-compatible architecture and agent-ready integrations.
APIs
Retrieval
LLM
Tools
Business action
- Building AI-integrated business systems
- Implementing chatbot platforms
- Integrating LLMs into enterprise workflows
- Creating AI orchestration pipelines
- Prompt engineering and tool calling
- API and database integrations for AI systems
- Retrieval systems and vector databases
- MCP-compatible architecture
Experience
Modernization, reliability, and financial workflow delivery.
Senior Software Engineer
- Modernized 10+ business-critical legacy modules into a C#/.NET microservices ecosystem, improving service boundaries, maintainability, and long-term scalability.
- Designed and developed REST APIs with ASP.NET Core Web API, improving average response times by approximately 20% through API design improvements, SQL Server query optimization, indexing, and caching.
- Built and maintained event-driven workflows using RabbitMQ and MassTransit, applying outbox and idempotency patterns to improve message reliability and reduce duplicate-processing issues.
- Standardized synchronous and asynchronous service integration patterns across multiple backend services, reducing coupling and decreasing recurring integration defects by approximately 25%.
- Developed shared internal NuGet packages for cross-cutting concerns, including authentication primitives, structured logging, configuration, and HTTP client policies, reducing duplicated implementation across backend services.
- Improved SQL Server performance and production observability using query optimization, Serilog, OpenTelemetry, and Grafana, reducing investigation time for production issues by approximately 30%.
- Contributed to architecture reviews, code reviews, technical documentation, and engineering quality practices, reviewing 100+ pull requests and supporting consistent delivery standards across backend services.
C#
.NET 6/8/10
ASP.NET Core
REST APIs
SQL Server
EF Core
Dapper
Redis
RabbitMQ
MassTransit
Docker
OpenTelemetry
Grafana
Serilog
Software Engineer
- Built and maintained real-time FX and cryptocurrency rate services using C#/.NET Windows Services and WebSockets, supporting continuous rate distribution across internal and customer-facing systems.
- Improved reliability of background distribution jobs by hardening retry logic, scheduling, and failure handling, reducing recurring job failures by approximately 30%.
- Integrated 5+ banking and payment gateway services with robust request validation, transaction status handling, logging, and error recovery.
- Designed and optimized SQL Server schemas, queries, and indexes for high-volume financial datasets, improving query performance by approximately 35% on key reporting and lookup operations.
- Enhanced service stability and operational visibility by improving structured logging, exception handling, and supportability for production financial workflows.
Software Engineer
- Built auction data conversion tools with automated validation and transformation pipelines.
- Built and optimized backend APIs for real-estate platforms.
- Implemented automated extraction and integration flows for property listings.
Education
Formal training that supports engineering and delivery ownership.
Azad University
Bachelor's Degree, Computer Software Engineering
Kumesh University
Associate's degree, Computer Software Engineering
Certifications
Cloud, infrastructure, and container credentials.
HashiCorp Certified
Terraform Associate (004)
Microsoft Certified
Azure Solutions Architect Expert
Certified Kubernetes
Application Developer (CKAD)
Selected accomplishments
Measurable work from production backend systems.
Legacy modernization
Modernized 10+ business-critical legacy modules into a C#/.NET microservices ecosystem with clearer service boundaries and stronger maintainability.
API responsiveness
Improved average API response times by approximately 20% through API design improvements, SQL Server query optimization, indexing, and caching.
Event-driven reliability
Built event-driven workflows with RabbitMQ and MassTransit using outbox and idempotency patterns to improve message reliability and reduce duplicate-processing issues.
Contact
Open to Senior Software Engineer and AI Infrastructure & Integration Engineer roles using C#/.NET.
On-site/hybrid roles in Cyprus and remote EMEA opportunities are both welcome. You can email me directly or use the form below.
For roles with sensitive details, email is usually the best way to share more context.