Senior .NET Engineer (AI & Database Expertise)

Code.Hub is the first Hub for Developers in Greece, builds together with partners decentralized digital hubs in FinTech for expanding the portfolio of their services globally. Code.Hub has the knowledge and technical mentorship for all technologies and helps the SW Engineers expand their skills and opportunity to make a great career path for their future!

Code.Hub believes in the talent of Greece. Code.Hub manages the biggest Software Development projects in the Greek market and numerous already 75% of the IT market in Greece. During 2018 and 2019, Code.Hub was listed in the top 100 most innovative initiatives in Greece.

Code.Hub was awarded in 2021 & 2020 with Gold Awards as the best company in the market regarding our services and again in 2022 as the Rising Star of the year, taking first place in “Best Talent Management Strategy & Initiative” and “Best Youth Employment Initiative”.

Code.Hub works together with leading global professional services companies, providing a broad range of services and solutions in strategy, consulting, digital, technology and operations. Code.Hub works with high-end technologies to help clients improve their performance and create sustainable value for their stakeholders.

You will be joining a fast-growing GameTech project, among the largest and most innovative in the world, active in 19 international markets and counting. Our partner offers a wide range of digital entertainment services to millions of users and is known for continuously investing in cutting-edge technologies. The team is diverse, multinational, and driven by a strong vision for inclusive growth, with operations across three continents and a workforce of over 2,700 professionals.

WORK YOU’LL DO

As a Senior .NET Backend Engineer with AI & Database Expertise, you will join the Player Account Management Platform team, contributing to the design, development, and optimization of large-scale backend systems with a strong focus on database architecture, system performance, and AI-driven engineering practices.

You will work within hybrid Agile teams, taking ownership of complex backend services and contributing to the acceleration of engineering processes through AI capabilities and intelligent automation initiatives.

KEY RESPONSIBILITIES

• Design and implement robust, scalable backend services using C#, ASP.NET Core, and .NET 8.
• Deliver features end-to-end, from technical design and architecture to implementation and production support.
• Develop and maintain high-availability systems operating at large scale with real-time workloads and significant data volumes.
• Work extensively with MS SQL Server and distributed database architectures, ensuring high performance, scalability, and reliability.
• Support and accelerate database code review processes through AI-driven approaches and engineering best practices.
• Design extensible and scalable data models that serve multiple downstream consumers and business domains.
• Define partitioning strategies to prevent data skew and ensure privacy-aware data isolation.
• Architect data models optimized for distributed compute performance, latency, durability, and infrastructure cost efficiency.
• Evaluate and articulate when to use NoSQL vs. RDBMS solutions, as well as Batch vs. Streaming architectures, based on technical and business requirements.
• Work with technologies such as Redis, RabbitMQ, ElasticSearch, and distributed systems platforms.
• Contribute to system design decisions and provide end-to-end technical approaches for highly complex and large-scale scenarios.
• Deliver high-quality, error-free solutions that maintain or improve overall system performance.
• Collaborate closely with cross-functional Agile teams, participating in peer reviews, technical discussions, and continuous improvement initiatives.
• Research and adopt emerging technologies, AI capabilities, and architectural patterns to improve development workflows and platform scalability.
• Promote software engineering excellence through clean code practices, maintainability, testing, and CI/CD methodologies.

WHO WE’RE LOOKING FOR

• B.Sc. or M.Sc. in Computer Science, Software Engineering, or a related technical field.
• Strong professional experience in backend software engineering using the Microsoft .NET ecosystem.
• Advanced proficiency in C#, ASP.NET Core, RESTful APIs, and modern backend development practices.
• Strong expertise in MS SQL Server and solid understanding of both SQL and NoSQL database technologies.
• Experience designing scalable distributed systems and complex data architectures.
• Good understanding of system design, infrastructure, scalability, and performance optimization principles.
• Ability to solve highly complex technical problems with a strong ownership mindset.
• Hands-on experience with source control systems, software design patterns, and architectural best practices.
• Experience working with messaging systems and asynchronous architectures such as RabbitMQ.
• Familiarity with technologies such as MS Orleans and CockroachDB will be considered a strong plus.
• Strong understanding of distributed data processing concepts, including partitioning strategies and distributed compute optimization.
• Ability to evaluate architectural trade-offs considering performance, latency, durability, scalability, and cost.
• Experience or strong interest in AI-enabled engineering workflows and backend AI capabilities.
• Comfortable working in Agile environments and collaborating effectively within multinational teams.
• Excellent communication skills in English, both written and verbal.
• A proactive, self-motivated attitude with strong analytical and problem-solving capabilities.

WHAT’S IN IT FOR YOU?

Let’s talk about us:

• Remote working model
• Competitive salary package
• Signing Bonus
• Brand new equipment
• Exciting and friendly work environment
• Career and competencies development
• Continuous learning & development through Code.Learn
• Personalized L&D plan for career growth
• Open, inclusive, and collaborative culture
• Internal competitions & rewards

Let’s talk about Code.Hub-ers:

• Free LinkedIn Learning trainings
• Free access to Code.Learn activities after onboarding period
• Dedicated Training & Tech Mentor during induction
• Sponsorship opportunities for Bachelor’s and/or Master’s Degree programs
• Private Health Insurance
• Performance planning and career progression framework
• Free lunch/snacks daily & Cocktail Fridays at the office
• Referral Bonus