NDA Project
Web Solution for Derivatives Trading
This web solution for derivatives trading development case study began with Devtorium providing QA services. As the project evolved, we added PHP developers and UI/UX designers to build a custom trading web application. The key challenge was migrating to advanced technologies without compromising the client’s high security and industry reputation. We replaced insufficient third-party tools by building a custom PHP application with logic tailored to their needs.
overview
About the client
Our client runs a swaps and derivatives trading platform with 980 member institutions in 78 countries. People have been putting their trust in this organization since 1985.
We are honored to expand the client’s online platform. We provide support, redesign, and add new functionalities to ensure the online derivatives trading platform can meet contemporary technological challenges.
- Front-End
- Back-End
- Cloud Migration
- QA Testing
- UI/UX Design
Client Challenges
As part of this web solution for derivatives trading development case study, key challenges included:
Search & Chatbot Platform:
The client needed an ultra-fast, intelligent search system to index and retrieve content from WordPress posts and PDFs. Additionally, they required an AI-powered chatbot that could respond to user queries by intelligently combining results from indexed documents, a static FAQ, and the AI model’s inherent knowledge.
Adherence API:
The client also requested a fully serverless HTTP API with robust features including API key control, route-level rate limiting and caching (with manual invalidation), secure access to database credentials, and comprehensive monitoring—all provisioned via Infrastructure as Code (IaC).
Key Technical Challenges
Synchronizing full-text and vector search indices in Elasticsearch.
Extracting and indexing data from PDFs using AWS Textract alongside WordPress content.
Designing a multi-stage query orchestration: combining vector search, static FAQs, and GPT output into a single response using a custom prompt template.
Implementing fine-grained API Gateway features in AWS CDK, including per-route caching and throttling.
Running Python Lambdas inside a VPC with secure database connectivity.
Enabling observability, alerting, and log insights with minimal operational overhead.
Technologies
Programming & Frameworks
PHP
Laravel
WordPress
Python
Search & AI
ElasticSearch
AWS Textract
OpenAI GPT
Cloud & Infrastructure
AWS CDK
Amazon API Gateway
AWS Lambda
AWS EC2
Aurora MySQL
AWS Secrets Manager
Observability & Monitoring
Amazon CloudWatch
Amazon SNS
AWS X-Ray
Testing
PHP Unit
What we’ve created
Solution
In this custom web application development project, Devtorium created an AI-powered search platform and a serverless Adherence API.
AI-Powered Search Platform:
We developed a Laravel-based indexing service that ingests WordPress posts and extracts PDF content into Elasticsearch. The system supports fuzzy matching, pagination, relevance boosting, and semantic vector search. A custom Search API was exposed and consumed by a WordPress frontend. Additionally, we created a WordPress chatbot plugin that, on every query, performs a vector search, reads from a static FAQ file, and invokes GPT to generate a final, coherent response using a tailored prompt that merges all content sources.
Serverless Adherence API:
We delivered a fully serverless API using AWS CDK, encapsulating best practices in scalability, security, and observability. Key components include:
- API Gateway: Environment-specific stages with CORS, custom access logs, throttling, route-level caching (with manual invalidation endpoint).
- Lambdas: Python-based functions running in a VPC with secure database access, shared layers, structured logging, and X-Ray tracing.
- Secrets Management: Auto-generated credentials managed via AWS Secrets Manager, securely accessed by Lambdas.
- Monitoring: Centralized observability via CloudWatch dashboards, Logs Insights widgets, alarms, and SNS-based alerting.
Results the Client Got
Web platform
Assisted the client in creating a custom web platform enabling it to provide its own customers with top-quality services.
Reputation boost
With a top-grade platform, the client can maintain its reputation as a trusted derivatives trading provider and strengthen its brand through UI and UX updates.
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