Senior .NET Software Engineer

Deltatre; United Kingdom; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading technology firm in the United Kingdom is seeking a Senior .NET Software Engineer to join its team. The successful candidate will be responsible for architecting robust, scalable solutions for OTT streaming platforms and apps while mentoring junior engineers. Candidates should have over 5 years of experience with .NET, REST API development, and cloud technologies. This role offers a dynamic environment fostering innovation and collaboration.

Qualifications

• Over 5 years of experience as a .NET Back-End Engineer or similar.
• Exposure to microservices and event-driven architecture is advantageous.
• Good understanding of HTTP, caching mechanisms, and service discovery.

Responsibilities

• Architect and implement scalable solutions for OTT platforms.
• Lead technical discussions using SCRUM/Agile methodologies.
• Mentor junior engineers and assist in recruitment.

Skills

Proficient in .NET 8/.NET Framework

Strong understanding of building REST APIs with Web API

Hands-on experience with multithreading and parallelization

Familiarity with NoSQL databases (preferably MongoDB)

Understanding of cloud technologies (AWS preferred)

Proficiency in Git and scripting with PowerShell/Bash

Experience with Docker and container orchestration

Job description

As a Senior .NET Software Engineer, you will be a part of the team responsible for designing and building new features, resolving issues, taking care of continuous integration and deployment, and improving all aspects of delivery. You will contribute to creating and delivering innovative OTT streaming solutions, websites, apps, and live broadcast systems that can handle millions of concurrent users seamlessly.

Responsibilities

• Architect and implement robust, scalable, and high-performance solutions for OTT streaming platforms, apps, websites, and live broadcast systems capable of handling millions of concurrent users
• Lead technical discussions and collaborate with cross‑functional teams to design and implement new features for our platforms, following SCRUM/Agile methodologies and sprint‑driven development
• Maintain and enhance existing codebases, ensuring scalability and performance while leveraging GitHub for version control and collaboration
• Troubleshoot and resolve technical issues with creative solutions
• Take ownership of key development tasks within a continuous integration and deployment environment
• Work with cloud infrastructure using a mix of services, containers, and virtual machines
• Conduct thorough code reviews and contribute to improving engineering practices
• Stay updated with the latest .NET technologies and integrate them into our systems when applicable, ensuring alignment with Agile best practices
• Mentor and guide junior engineers, fostering a culture of continuous learning and technical excellence
• Assist in the recruitment and onboarding of new front‑end team members

Requirements

• Over 5 years of relevant work experience as a .NET Back‑End Engineer or similar
• Proficient in .NET 8/.NET Framework
• Strong understanding of building REST APIs with Web API
• Hands‑on experience with multithreading and parallelization
• Familiarity with NoSQL databases (preferably MongoDB)
• Knowledge of SQL and relational databases (preferably MS SQL)
• Experience with designing high‑performance and scalable services
• Exposure to microservices and event‑driven architecture
• Understanding of cloud technologies (AWS preferred)
• Experience with Docker and container orchestration (ECS/EKS a plus)
• Ability to write and maintain unit, integration, and component tests
• Good understanding of HTTP, caching mechanisms, and service discovery
• Familiarity with modern communication technologies like RabbitMQ (preferred), gRPC and Apache Kafka
• Problem‑solving mindset for tackling complex technical challenges
• Knowledge of in‑memory key‑value databases like Redis
• Proficiency in Git and scripting with PowerShell/Bash
• Experience with continuous integration tools (e.g., GitHub Actions & Workflows)
• Familiarity with continuous deployment processes (e.g., Flux)
• Familiarity with Windows/Visual Studio

We’re looking for someone who is:

• driven to push the boundaries and lead change and performance
• communicative to leave no‑one in the dark and to work with your team successfully
• reliable so we know that we can call on you to meet deadlines
• passionate about the latest technologies and standards
• proactive to suggest improvements, identify and fix potential issues
• solid technically speaking, to advise both Clients and internal teams

Our people are key to our success and we pride ourselves on offering a dynamic, creative, innovative and supportive environment. Having the right combination of a 'can‑do' approach, strong work ethic, integrity, friendliness and attention to detail is crucial.

Even if you don’t tick all the boxes for one particular role, but you have a keen interest in what we do, send us your details, we may find a suitable match during the interview process.