Ashwin Sekaran

Senior backend and Cloud Platform Engineer with 14 years of experience in platform automation and AI-driven systems, specializing in agentic architectures. Experienced in building cloud-native platforms for smart metering, cloud automation, and financial services. Experience in leading cross-functional teams and delivering production-grade systems aligned with business goals.

Ashwin Sekaran

Recent Experience

tc1 GmbH, Berlin, Germany Software Engineer - 2020 - Present

Open AI MCP App - Designed and built an AI-powered conversational platform using ChatGPT as a connector, implemented with MCP and Python. Architected high-performance asynchronous services using FastMCP and Uvicorn, with Firestore as the primary datastore. Led end-to-end platform deployment by containerizing services and shipping them via a GHCR-backed CI/CD pipeline to a GKE cluster. Authored Helm charts to manage Kubernetes resources, including deployments, services, and autoscaling. Implemented Kubernetes Ingress and DNS configuration to expose the MCP server securely, ensuring scalable, reliable, and production-ready infrastructure.

Python, Firestore, MCP, OpenAI, Kubernetes, Docker, GCP, Terraform

Ingestion Control Platform - Designed and built a scalable data ingestion and monitoring platform for device-space management, streaming real-time telemetry over MQTT and processing it with Rust and Axum. Developed an AI-powered, agentic conversational interface by integrating multiple LLMs (OpenAI, Grok, and Ollama), leveraging context engineering to dynamically generate high-quality prompts from both streaming and historical data. Architected and implemented an MCP (Model Context Protocol) server-host architecture to securely expose domain-specific tools and datasets, enabling autonomous, tool-invoking LLM agents for advanced querying and analytical workflows. Deployed cloud-native, high-throughput services using Cassandra, Docker, and Kubernetes, optimized for time-series ingestion and event-driven processing at scale.

Rust, Axum, Context Engineering, RAG, OpenAI API, MCP server/host, Cassandra, Docker, Kubernetes

Data Ingestion and Service Management Platform - For a Smart Metering firm, led the design and operation of a large-scale Data Ingestion and Service Management Platform for a smart metering provider using Go and Cassandra. The platform ingests high-volume metering data from multiple customer Elasticsearch clusters into a unified distributed processing layer, enabling real-time operational visibility. Integrated our own custom OAuth 2.0 system with customer Azure AD to enforce secure, fine-grained access control across platform services. Owned production reliability and SRE practices by deploying containerized services via a GHCR-backed CI/CD pipeline to Azure Kubernetes Service (AKS). Defined and enforced SLIs and SLAs based on customer-provided KPIs, implementing automated anomaly detection and SLA breach monitoring across ingestion throughput, latency, and availability. Built end-to-end observability using OpenTelemetry, Prometheus, and Grafana, including Kubernetes and Cassandra health, capacity, and performance dashboards. Integrated incident.io to automatically trigger incidents, alerts, and stakeholder notifications on SLA violations, establishing measurable reliability targets, rapid incident response, and continuous service improvement.

GoLang, Cassandra, Kubernetes, Grafana, Prometheus, Docker, Latex, Azure

Authentication and Authorization Service - Drove the end-to-end development of an OAuth 2.0-compliant authorization platform for service accounts using Rust, Warp, and Hyper, inspired by the Google Zanzibar access-control model. Implemented multi-IdP authentication and federation supporting Google, Microsoft, X, OpenLDAP, and other identity providers for a centralized access-control application. Architected the platform with a pluggable, feature-gated Rust design, enabling seamless switching of databases and identity integrations based on customer requirements.

Rust, Warp, Hyper, OAuth 2.0, Google Zanzibar, Cassandra, Kubernetes, GCP

AWS Marketplace Integration - For an open-source vector database, integrated a Marketplace application into AWS using CloudFormation templates.

AWS, CloudFormation, Marketplace API

Access Manager - For an European retail ecommerce giant, built a Go application featuring an Access Manager with a Postgres backend, monitoring tools, Grafana, and Prometheus dashboards. Automated cloud platform tasks using Go and Google Cloud API, leveraging Terraform Google provider functionality.

Go, Postgres, Grafana, Prometheus, Google Cloud, Terraform

Open Source Contributions

F1predictor - Enhanced an open-source Formula 1 telemetry library and AI-based race outcome predictor for the 2026 season. Leveraged an existing Gradient Boosting Regressor model to visualize, analyze, and strategize key telemetry data using the FastF1 API and Matplotlib.

Python, FastF1, scikit-learn, Matplotlib

Httprouterext - Enhanced a Go client library for a custom Authorization Service, a high-performance, relationship-based authorization system. The library provides a gRPC client to interact with the service and middleware for easy integration with the julienschmidt/httprouter framework.

Go, gRPC, httprouter, Authorization

Internal Consistent Hashing Library - Built an internal consistent hashing library with Tonic for a gRPC client in Rust, supporting reliable request distribution across backend services.

Rust, Tonic, gRPC, Consistent Hashing

Accenture, Chennai, India (Associate Manager) 2015 - 2020

Solution Planner - Technical Lead/Manager for the SI module of a Solution Planner application targeting Solution Architects in Accenture, estimating costing and pricing for bids including AO and SI (Application Outsourcing and System Integration). Led design and performance engineering action items, including UI and database design, SQL profiling and indexing, LINQ optimization, and Entity Framework implementation. Owned project artifacts and unit testing for applications using Jasmine and Karma.

.NET Core, Angular, MVC, SQL, LINQ, AG-Grid, Entity Framework

Cognizant, Chennai, India (Programmer Analyst) 2011 - 2015

Developed and maintained commercial financing applications for a US-based bank, delivering enhancements based on client requirements and supporting production application workflows.

ADO.Net, Telerik, SQL, TFS