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Kamil Toporek

@kamiltoporek2

Senior Software Engineer at Cerebra Consulting Inc, developing secure full-stack applications and LLM features with retrieval-augmented generation.

Poland

Message

At Cerebra Consulting Inc, I develop secure full-stack applications and backend services, including LLM features with tool calling and retrieval-augmented generation. I work across APIs, data integrations, web interfaces, and production support.

At Concentrix, I worked on “iX Hello,” an AI healthcare assistant. I developed event-driven microservices, high-throughput data pipelines, and HIPAA-compliant LLM workflows, including clinical assistants using Azure OpenAI over FHIR and clinical notes.

At Synox, I worked on an IoT platform for connecting, monitoring, and analyzing data from distributed devices. I developed real-time dashboards and APIs, and contributed to the platform’s cloud deployments and CI/CD pipelines.

At Look4IT, I worked on modernizing a global banking and payments platform. I developed payment microservices and transaction pipelines, and built AI-driven fraud detection services and React-based onboarding flows.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Cerebra Consulting Inc

Apr 2026 - Present (6 months)

Develop full-stack applications and backend services, turning business requirements into secure, maintainable features. Design Python (FastAPI) and Node.js/TypeScript services with documented REST APIs, build React interfaces, and integrate systems with event-driven patterns.

Python fastAPI NodeJS TypeScript React PostgreSQL Redis Docker AWS Azure CI CD OAuth JWT RBAC LLM RAG

Senior Software Engineer | AI Developer

Concentrix

Oct 2023 - Mar 2026 (2 years 5 months)

Led the development of an AI-powered healthcare assistant platform, migrating monolithic APIs to event-driven microservices and building high-throughput ingestion pipelines. Designed RAG pipelines and LLM orchestration workflows, ensuring HIPAA compliance and achieving 99.99% availability.

Python fastAPI Kafka RabbitMQ Lang Chain LangGraph RAG Azure OpenAI FHIR HL7 GraphQL gRPC Redis Kubernetes AKS IAM RBAC HIPAA

Full Stack Engineer

Synox

Aug 2020 - Sep 2023 (3 years 1 month)

Designed and delivered a multi-tenant IoT SaaS platform, building a React dashboard with real-time data visualization and RESTful APIs using Node.js and Python. Implemented tenant-isolated architecture, RBAC, and deployed services on AWS and Azure with CI/CD pipelines.

React TypeScript NodeJS Express Python fastAPI WebSockets PostgreSQL Docker AWS Azure IoT CI CD RBAC JWT

Full Stack Engineer

Look4IT

May 2018 - Mar 2020 (1 year 10 months)

Modernized a global banking and payments platform using Python and Node.js microservices on AWS, building high-throughput transaction pipelines and AI-driven fraud detection. Developed React-based customer experiences and dashboards, improving approval rates and reducing fraud loss.

Python fastAPI NodeJS React Kafka Amazon Kinesis PostgreSQL TensorFlow scikit learn GraphQL Docker Jenkins AWS PCI DSS

Junior Software Engineer

Kenja K.K.

Apr 2015 - Jan 2018 (2 years 9 months)

Built Python (Flask) backend services and REST APIs with PostgreSQL, and developed React single-page applications for an internal HR portal. Implemented a recommendation system using scikit-learn and practiced DevOps with Docker and Jenkins.