Senior .NET Software Engineer

Senior .NET Software Engineer at Cobalt Streamworks
Senior .Net Software Engineer
Location: South Africa
Department: Engineering
Workplace: remote
Employment Type: full
Description
Here at Cobalt Streamworks, we are continuously developing a fantastic team and would love it for you to join us. We are currently seeking for a Senior .Net Software Engineer to join our team.
As a Senior .Net Software Engineer, you will play a critical role in implementing, and maintaining large-scale, enterprise-level applications. You will be responsible for writing high-performance, simple, and testable code, with experience deploying to Kubernetes, working with relational databases like Microsoft SQL Server and consuming data from Kafka. Your expertise in .NET will be crucial in delivering high-quality software solutions.
We are looking for someone who is passionate about technology, thrives in a collaborative environment, and has a proven track record of delivering complex projects on time with high quality.
Come and be part of our dynamic and innovative team, where you can make a significant impact and contribute to the success of our projects.
Requirements
You're Great At
– Extensive experience with .NET development: At least 8 years of professional experience, with deep knowledge of .NET 8 and its performance-oriented features.
– Mastery of Event-Driven Architecture: Proven experience designing and implementing asynchronous flows using AWS SNS and SQS.
– Infrastructure as Code (IaC): Solid experience with Terraform for automated infrastructure setup and management.
– Modern Testing Methodologies: Expertise in building robust test suites using xUnit and simulating external dependencies with WireMock.
– High-Performance Caching: Hands-on experience with Redis or Valkey to optimize data access and system latency.
– Modern DevOps & CI/CD: Proficiency in managing repositories and automated pipelines using GitHub Actions (for ECS) and TeamCity (for EC2).
– Technical Leadership: Experience leading architectural design decisions and mentoring engineers in high-availability environments.
It Would Be Fantastic If You Also Have
– Data Streaming Expertise: Knowledge of AWS Data Firehose and AWS Data Streams for real-time data orchestration.
– Cloud Storage Integration: Experience with S3 bucket integration and lifecycle management.
– AI & LLM Affinity: Curiosity or practical experience working with Large Language Models (LLMs) and writing Python code for AI-assisted features.
– AI-Assisted Development: Experience leveraging GitHub Copilot and ChatGPT to accelerate the development lifecycle.
– Strong Problem-Solving Skills: Ability to troubleshoot complex distributed systems and optimize high-throughput data pipelines.
– Excellent Communication: Ability to collaborate with cross-functional teams in an Agile environment to deliver high-quality software.
Benefits
The Things We Really Care About:
– Flexible working hours
– Cobalt Streamworks Annual Trip, Sports, and sharing groups to connect and have fun!
– Training & conferences, create your own training plan
Most of all, You get to work with a bunch of great people, where the whole team owns the project together in a politics-free environment. Our culture reflects our lean and self-organization attitude. We encourage our colleagues to take risks, make decisions, work in a collaborative way, and talk to everyone to enhance communication. Freedom and Responsibility go hand in hand, and we value commitment, feedback, and empathy.
About Cobalt Streamworks
At Cobalt Streamworks we use technology to build products we are proud of, with people we love.
Software Engineering Applications, including Web and Mobile, are at the core of what we do at Cobalt Streamworks.
We partner with our clients to understand their products and deliver high-performance, resilient, and scalable software systems that create an impact on their users and businesses across the world.
You get to work with a bunch of great people, where the whole team owns the project together.
Our culture reflects our lean and self management attitude. We encourage our colleagues to take risks, make decisions, work in a collaborative way and talk to everyone to enhance communication.
We are proud of our work and we love to learn all and everything while navigating through an Agile, Lean and collaborative environment.
Check out our  and our !
Our branches are located: Porto, Portugal | Aveiro, Portugal | Coimbra, Portugal | Leicester, UK | Casablanca, Morocco | San Diego, USA | San Francisco, USA | Chennai, India | Bengaluru, India | Cluj-Napoca, Romania