Senior Software Engineer & AWS Certified Solutions Architect
Senior Software Engineer and AWS Certified Solutions Architect (Professional) with 6 years of experience in Fintech and Event-Driven architectures. Expert in Node.js, TypeScript, and AWS Serverless technologies. Proven track record designing high-availability systems including credit scoring engines and AI-driven (RAG/LLM) content platforms. Skilled in Infrastructure as Code (Terraform/CDK) and monolith-to-microservices migration. In parallel, I maintain a private closed-source product built as a sole developer in stable support mode as an engineering lab for new ideas.
Methodology focuses on Domain-Driven Design, type-safety, observability, and cost-efficiency. Technical leadership emphasizes mentoring and the long-term ROI of architectural decisions, ensuring systems scale without technical debt accumulation.
Modernizing existing code and implementing core decisioning logic for a US mortgage platform using TypeScript and Jest. Ensuring deterministic integer-based monetary calculations and compliance with strict lending regulations. Engineered a PoC for an internal AI-driven SEO automation module using LLMs.
Designed and shipped a closed-source production SaaS end-to-end as sole developer. The platform is now in stable support mode, with focused after-hours iterations used to test modern architecture patterns and delivery approaches.
Developed and maintained serverless and microservice-based backend systems. Designed and implemented solutions with payment gateways, BaaS, and ML modules. Managed cloud infrastructure using Serverless Framework and Terraform. Led technical discussions, code reviews, and team support.
Salesforce Collection Solution: developed a serverless donation management system for a non-profit client using AWS Step Functions and CDK to automate complex payment flows. Digital Education Platform: designed and implemented a scalable backend with AWS Fargate, DocumentDB, and API Gateway. BITS Converter (global non-profit): advanced a publication converter, implementing MVP features and deployment pipelines using Node.js and AWS.
Developed frontend (React.js, Next.js) and backend (Node.js/Nest.js, PostgreSQL) components for a subscription service. Integrated third-party services including Chargebee, Stripe, and Contentful. Built internal management dashboards.
Developed a core API service from scratch using Node.js and Express.js. Extended an in-house WebSocket chat service and integrated MongoDB and Redis. Created an image processing microservice with AWS S3.
Contributed to web projects including a remote-controlled lighting system dashboard (Node.js/React) and a Zero Trust Security Platform PoC on AWS. Built early experience across Node.js, React, Python, and AWS.
Fintech Systems & Event-Driven Architecture
AI/RAG/LLM Integration, System Design
Part 1 of the IHA Migration Series — documenting the move from a Next.js monolith to a distributed, event-driven architecture using RabbitMQ, and the three pain points that made it necessary.
How I designed and built IHA - a platform for tracking recurring events through structured records and source-backed timelines.
A post-mortem on building Grimoire: stack evolution, ecosystem design, migration strategy, and why development is paused.
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