Dotnet Developer/Lead

Recruise; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Recruise is seeking a senior backend engineer to own end-to-end microservice modules and design robust data models with EF Core and PostgreSQL. You will architect cross-service messaging via SQS, ensure idempotency and proper dead-letter handling, and lead root-cause analyses for production incidents.

You will mentor junior engineers, collaborate with Scrum Master, QA, and the Product Owner to translate Jira tickets into actionable plans and uphold high standards for software quality and

Qualifications

• 5 years of backend engineering experience, including 3 years of .NET / C#.
• Proven track record of delivering at least one production-grade microservice system.
• Deep proficiency in EF Core: Data Annotations vs Fluent API; change tracking.
• Strong PostgreSQL fundamentals: indexing, query plans, locking, isolation levels.
• Hands-on with a message queue tech (SQS / Kafka / RabbitMQ).
• Experience with containers and Kubernetes manifests; read and reason about them.
• Disciplined Git workflow and commit hygiene.
• English proficiency for technical discussions and documentation.

Responsibilities

• Lead architecture and implementation of 1-2 microservice modules end-to-end.
• Design EF Core data models and PostgreSQL schemas with maintainability in mind.
• Architect cross-service SQS messaging flows, addressing idempotency, retries, and dead-letter handling.
• Conduct rigorous code reviews and provide mentorship to junior engineers.
• Partner with Scrum Master, QA, and Product Owner to translate Jira tickets into actionable plans.
• Lead root-cause analysis for production incidents and drive long-term improvements.

Skills

Backend engineering

Code reviews

Mentorship

Scrum/Agile

English proficiency

Tools

EF Core

PostgreSQL

SQS

Kafka

RabbitMQ

Docker

Kubernetes

Git

Job description

Key Responsibilities

• Lead the architecture and implementation of 1-2 microservice modules end-to-end.
• Design EF Core data models and PostgreSQL schemas with long-term maintainability in mind.
• Architect cross-service SQS messaging flows, addressing idempotency, retry semantics, and dead-letter handling.
• Conduct rigorous code reviews and provide technical mentorship to junior engineers.
• Partner with the Scrum Master, QA, and Product Owner to translate Jira tickets into actionable, well-scoped technical plans.
• Lead root-cause analysis for production incidents and drive sustained, long-term improvements.

Required Qualifications

• 5 years of backend engineering experience, including 3 years of .NET / C# (.NET 8.0 a plus).
• Proven track record of independently delivering at least one production-grade microservice system, with sound judgment on service decomposition and the trade-offs between synchronous HTTP and asynchronous messaging.
• Deep proficiency in EF Core: clear judgment on when to apply Data Annotations vs. Fluent API; thorough understanding of N 1, change tracking, and projection performance implications.
• Strong PostgreSQL fundamentals: indexing strategy, query plan analysis, locking, and transaction isolation levels.
• Hands-on production experience with at least one message queue technology (SQS / Kafka / RabbitMQ).
• Working knowledge of containerization and Kubernetes fundamentals (able to read and reason about Deployment, Service, and ConfigMap manifests).
• Disciplined Git workflow and high standards for commit hygiene.
• English proficiency : able to engage in technical discussions and system design verbally; able to author English technical documentation.

Preferred Qualifications

• Production AWS experience across SQS / S3 / ECS / EKS.
• Familiarity with local Kubernetes development tooling such as Tilt or Skaffold.
• Terraform or other Infrastructure-as-Code experience.
• Hands-on observability experience (OpenTelemetry / Prometheus / Grafana).
• Domain experience in print, logistics, or e-commerce fulfillment.
• Practical experience with DTO mapping libraries (Mapster / AutoMapper), including performance tuning.

• • Excel modeling and powerpoint expertise is a must
• • Any experience on advanced analytics models/ tools/ use cases will be an added advantage