Senior Lead Engineer - .NET Core

Esyasoft Holding Ltd; Bengaluru; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Esyasoft Technologies Private Limited in Bengaluru seeks a Team Lead / Architect to drive design and delivery of large-scale smart metering and utility platforms. This role owns technical architecture, design docs, and mentors a team delivering high-throughput, highly available systems.

Required: 8–10 years in software engineering with strong .NET Core/C#, microservices, Azure, PostgreSQL, Elasticsearch, RabbitMQ/Kafka, and Docker. DLMS/COSEM and SSO familiarity is a strong plus.

Qualifications

• 8+ years in software engineering with leadership or architecture exposure.
• Strong hands-on .NET Core and modern C# development.
• Proven microservices design and implementation experience.
• Extensive Azure compute/storage/networking and DevOps/CI‑CD knowledge.
• Elasticsearch indexing, querying and performance tuning expertise.
• Deep PostgreSQL experience with partitioning, HA (Patroni) and PgBouncer.
• RabbitMQ and Kafka for asynchronous messaging at scale.
• Experience with reverse proxies (Nginx/HAProxy) and Docker on Linux.
• SSO/OAuth/OpenIddict/Entra ID familiarity is a plus.
• Domain exposure to utility/AMI platforms and DLMS/COSEM is a strong plus.

Responsibilities

• Own end-to-end solution architecture for utility/AMI platform modules.
• Author design documents, API references, and ARB submissions.
• Design and review microservices for scalability and fault tolerance.
• Lead database architecture decisions for PostgreSQL at scale.
• Drive messaging pipelines using RabbitMQ and Kafka.
• Architect and tune Elasticsearch for search/logging/analytics.
• Define Azure cloud deployment strategy (App Services, AKS, DevOps).
• Lead containerization and zero-downtime deployments with Docker.
• Mentor engineers, perform code reviews, and enforce standards.
• Oversee security architecture including RBAC, auth, and encryption.

Skills

.NET Core

C#

Microservices

Azure

Elasticsearch

PostgreSQL

RabbitMQ

Kafka

Docker

Nginx

HAProxy

OAuth/OpenIddict

SSO

Tools

Patroni

PgBouncer

PostGIS

AKS

App Services

Ubuntu/Linux

Azure DevOps

Job description

Esyasoft Technologies Private Limited | Full time

• Relevant Experience (Years) 8 to 10 years
• Required Skills
  • HAProxy
  • Docker
  • +21
• Country India

Job Description

We are looking for a Team Lead / Architect to drive design and delivery of large-scale smart meteringand utility platforms (HES, MDM, WFM, GIS, SSO) deployed across multiple enterprise clientengagements, operating at production scales of 3.8M+ meters with 10M+ in planning. This role ownstechnical architecture, design documentation, and mentors a team of engineers deliveringhigh-throughput, high-availability systems.

Key Responsibilities

• Own end-to-end solution architecture for utility/AMI platform modules, from design throughproduction deployment.
• Author formal design documents, API reference documents, and ARB submissions for client andinternal stakeholders.
• Design and review microservices architecture, ensuring scalability, fault tolerance, and clean domainboundaries.
• Apply appropriate design patterns to solve high-throughput, high-availability problems at billion-rowdata scale.
• Lead database architecture decisions for PostgreSQL at scale (partitioning, HA via Patroni,connection pooling via PgBouncer).
• Drive messaging architecture using RabbitMQ and Kafka for event-driven and high-volume telemetrypipelines.
• Architect and tune Elasticsearch for search, logging, or analytics use cases as required.
• Define and review Azure cloud architecture and deployment strategy (App Services, AKS, DevOpspipelines, networking).
• Lead containerization and deployment strategy using Docker on Ubuntu, including zero-downtime.(blue-green) deployments.
• Conduct code reviews, set engineering standards, and mentor a team of developers.
• Own security architecture review, including remediation of VAPT findings (RBAC, authentication,encryption).
• Collaborate with client technical and executive stakeholders, translating requirements into technicaldesigns.
• Troubleshoot and resolve complex production issues across data pipelines, integrations, andinfrastructure.

Required Skills & Experience:

• 8+ years of overall software engineering experience, with demonstrated experience in technicalleadership or architecture roles.
• Strong hands-on expertise in .NET Core (.NET 8 preferred) and modern C# development.
• Proven experience designing and implementing Microservices architecture.
• Strong working knowledge of Microsoft Azure (compute, storage, networking, DevOps/CI-CD).
• Hands-on experience with Elasticsearch for indexing, querying, and performance tuning.
• Deep expertise in PostgreSQL (16 preferred), including partitioning, replication/HA (Patroni),pooling (PgBouncer), and PostGIS for geospatial data.
• Practical experience with RabbitMQ and Kafka for asynchronous and event-driven messaging atscale.
• Strong grounding in software design patterns and ability to produce clear, implementable designdocuments.
• Experience with reverse proxy/load balancing (Nginx, HAProxy) and containerization (Docker) onUbuntu/Linux.
• Familiarity with authentication/identity protocols (SSO, OAuth/OpenIddict, Entra ID) is a plus.
• Domain exposure to utility/AMI platforms — DLMS/COSEM meter protocols, HES/MDM systems,NB-IoT/LoRaWAN connectivity — is a strong plus.
• Excellent communication skills; ability to write precise, client-facing technical documentation andpresent architecture to both technical and executive audiences.
  

Requirements

Good to Have

• Experience with GIS-based systems (PostGIS, tile serving, geospatial APIs).
• Exposure to security hardening and VAPT remediation in production systems.
• Experience with multi-tenant SaaS architecture and key management (e.g., Vault/OpenBao).