Job Description

Job Information


Assigned Recruiter(s)


Sreegiri R
Date Opened


12/23/2025
Job Type


Full time
Industry


Software Development
City


Thiruvananthapuram
State/Province


Kerala
Zip/Postal Code


695001
Country


India
About Us


Blue Ripples Technologies is a dynamic technology company that develops impactful software across multiple platforms. Established in 2012, we have a strong foundation in Digital Transformation with special focus on Legacy System upgrades. From enterprises to visionary new start-ups, we have been part of some powerful digital solutions that have transformed lives. Now, it's your turn.






We are looking for a Senior .NET Developer to design and build an on-premise, Kafka


centric IoT platform handling 50,000+ devices, MQTT-based ingestion, secure device


provisioning using Keycloak, and sub-second real-time data visualization. The role


focuses on building event-driven microservices, real-time ingestion pipelines, and scalable


backend APIs.

Responsibilities:

Design and develop ASP.NET Core microservices using event-driven

architecture

Build device registry and device provisioning services integrated with Keycloak

(OIDC, OAuth2, JWT)

Implement Kafka-first data pipelines for: Telemetry ingestion Device lifecycle events Alerts, rules, and downstream consumers Develop Kafka producers and consumers using .NET (Confluent.Kafka /

MassTransit)

Integrate MQTT brokers with Kafka for scalable ingestion Support real-time dashboards (<1s latency) using Kafka Redis

SignalR/WebSockets

Design APIs for fleet management, telemetry access, and reporting Work with TimescaleDB/PostgreSQL for time-series storage Collaborate with DevOps on Docker, Kubernetes (on-prem), Helm, CI/CD Mentor junior engineers and contribute to architectural decisions


Requirements

C#, .NET 6+/ASP.NET Core Strong experience with Apache Kafka

o Topics, partitions, consumer groups


o Exactly-once / at-least-once semantics

Schema evolution (Avro/JSON/Schema Registry) Event-driven & streaming architectures MQTT and IoT ingestion patterns OAuth2, OpenID Connect, JWT, Keycloak (preferred) Redis for real-time caching and streaming PostgreSQL / TimescaleDB Docker & Kubernetes (on-prem)

Good to Have:

Kafka Streams / Apache Flink integration VerneMQ/HiveMQ/EMQX experience MinIO / S3-compatible storage Industrial IoT / SCADA exposure Observability tools (Prometheus, Grafana, ELK/OpenSearch)


Benefits

Competitive salary and benefits. Opportunities for high-speed professional growth and development. Collaborative and supportive work environment. Medical insurance OP Allowance Statutory Benefits like PF, ESI, LWF, Gratuity * Training (Technical & Soft skills)