.Net Developer

eTeam Inc.

Austin, TX

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JOB DETAILS

SALARY

$50–$60 Per Hour

SKILLS

Application Programming Interface (API), Banking Services, Cloud Computing, Consulting, Customer Relations, Database Replication, Geolocation, IP (Internet Protocol), Intelligence Agencies, Message Broker, Messaging Middleware, Microservices, Microsoft .NET, Microsoft ASP.NET (Active Server Page), Microsoft C# (C Sharp), Microsoft SQL Server, Multithreaded Programming, Offshoring, Performance Analysis, Performance Tuning/Optimization, REST (Representational State Transfer), Risk Management, SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS), Scalable System Development, Service Level Agreement (SLA), Stored Procedures, Transaction Processing/Management, VPN (Virtual Private Network)

LOCATION

Austin, TX

POSTED

Today

Role Name: .Net Developer
Location: Austin, TX

JOB DESCRIPTION:
Key Responsibilities

Design and develop real-time transaction processing systems with end-to-end latency requirements below 300 milliseconds.
Build highly resilient and scalable architectures capable of enriching transactions from approximately 10 on-premises and cloud-based data sources.
Develop and maintain event-driven streaming solutions using:
Apache Kafka
Apache Flink
Kong API Gateway
Build and support real-time integrations using:
AWS Glue
AWS Lambda
Amazon EventBridge
HVR (Five Tran HVR)
Design, build, and consume high-performance REST APIs using .NET/.NET Core.
Implement resilient messaging, event processing, monitoring, and fault-tolerant patterns.
Collaborate with cloud, infrastructure, and security teams to ensure scalability and reliability.
Optimize system performance to meet stringent SLAs and low-latency requirements.

Required Technical Skills

Real-Time Processing

Proven experience building real-time distributed systems.
Demonstrated experience delivering transaction round-trip times under 300 milliseconds.
Experience enriching transactions using multiple internal and external data sources.

Streaming & Messaging

Apache Kafka
Topic design
Consumer groups
Stream processing
Custom Kafka business logic
Apache Flink
Stateful stream processing
Event-time processing
Windowing
Low-latency data pipelines

API & Integration Technologies

Kong API Gateway
REST APIs
Microservices Architecture
.NET / .NET Core / C#

AWS Technologies

AWS Glue
AWS Lambda
Amazon EventBridge
Cloud-native event-driven architectures
Integration between on-premises and cloud platforms

Data Replication & Integration

HVR (High Volume Replication/Fivetran HVR)
Real-time data synchronization and replication strategies

Security & Network Intelligence Requirements

The candidate should possess experience in:

IP reputation and risk analysis
Identifying and classifying traffic originating from:
TOR networks
Proxy servers
VPN services
Fraud detection or cybersecurity-related enrichment services
Integration of threat intelligence and geolocation services into transaction workflows

Preferred Qualifications

Experience in payments, fintech, banking, fraud prevention, or risk management systems.
Experience operating systems with high transaction volumes and strict SLA requirements.
Strong understanding of resiliency patterns, fault tolerance, and distributed architectures.
Knowledge of observability, monitoring, and performance tuning.

Screening Questions

Have you built or supported a real-time transaction processing system where end-to-end response time was less than 300 milliseconds?
How many enrichment sources were involved, and were they cloud-based, on-premises, or both?
Describe your hands-on experience with Apache Flink.
Describe your experience designing and implementing Kafka-based business logic.
Have you worked with Kong API Gateway? Please provide examples.
What experience do you have with AWS Glue, Lambda, EventBridge, and HVR?
Have you built and consumed high-volume real-time APIs using .NET/.NET Core?
Have you implemented solutions to detect whether an IP address originates from a TOR network, Proxy, or VPN?
Are you currently located in Austin or willing to remain in Austin for the duration of the engagement?
What is your earliest available joining date?

Mandatory Requirements Summary

Real-time systems (?300ms latency)
Apache Kafka
Apache Flink
Kong API Gateway
AWS Glue
AWS Lambda
Amazon EventBridge
HVR
.NET / .NET Core APIs
TOR / Proxy / VPN detection knowledge
Onsite in Austin throughout project duration
Immediate to short-notice availability preferred (state joining timeline)

Must have skills:
Excellent knowledge of C# with Multi-threading, Async.
Good command over OOP concepts, SOLID principles, Design patterns.
Experience in REST API/Microservices using ASP.Net WebAPI. Only ASP.Net MVC is not acceptable.
Securing web applications using Authentication Tokens, Certificates, OAuth etc.
Caching, Distributed caching.
Pub/Sub, Queues/Topics Message Broker, Any one Queuing system.
SQL Server knowledge, Joins, Stored Procedures, Functions, writing complex queries. SSIS/SSRS
Experience on Lambda, CloudWatch, API Gateway, S3 Bucket, EC2, SNS, SQS, ELB, Docker/Kubernetes & Kafka MQ, IAM, Authorization, and Access control, SaaS etc.

Good to Have Skills (Secondary Skils): Business communication, client facing and consulting experience, coordination and navigating with stake holders and offshore team, solutioning mindset.

Location:
Austin, Texas. Worst case in Fort Mill, SC - Please specify

About the Company

eTeam Inc.

Looking for a great job? Join eTeam. We’re looking for talented staffing professionals to join our staff. We also provide contract assignments and full-time jobs at Fortune 2000 Companies. We’ve been named one of the best companies to work for by Staffing Industry Analysts and New Jersey Business.

COMPANY SIZE

100 to 499 employees

INDUSTRY

Other/Not Classified

FOUNDED

1998

WEBSITE

www.eteaminc.com

.Net Developer

eTeam Inc.

Austin, TX

About the Company

eTeam Inc.

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