[Hiring] .NET Engineer @JustMarkets

Role Description

We are looking for a .NET Engineer to join us in developing and expanding our fintech product. You’ll become part of a team with strong expertise in research, analysis, and product development, working on scalable, high-traffic systems where technology and data play a key role in shaping the product.

We combine deep technical expertise, data-driven decision-making, and a strong focus on continuous improvement to build innovative solutions that address real-world challenges in the fintech industry. If you enjoy solving complex engineering problems, working with modern technologies, and seeing your ideas make a tangible impact, we’d love to hear from you.

Our technology stack:

• C#, .NET 10
• PostgreSQL
• Redis
• ClickHouse for big data storage and analytics
• REST and GraphQL APIs
• RabbitMQ
• Apache Kafka
• Docker
• Kubernetes
• AWS
• GitLab
• ArgoCD
• Jira
• Confluence
• AI tools (ex. Claude Code)

Responsibilities:

• Design, develop and maintain scalable solutions for high-traffic systems using C# and modern .NET
• Analyze business and technical requirements and translate them into scalable, maintainable software architectures
• Collaborate with engineers and cross-functional stakeholders to design and deliver features
• Write clean, maintainable, testable and well-documented code, supported by unit, integration and load tests
• Investigate production issues and improve system observability through effective use of logs, metrics, traces, and business data
• Research and introduce new technologies, tools and engineering practices that can improve product quality and development efficiency
• Challenge existing approaches and actively contribute to the continuous improvement of the team, processes and product

Qualifications

• 3+ years of commercial experience with C# and modern .NET
• Solid understanding of OOP, design patterns, data structures and algorithms
• Hands-on experience with multithreading and asynchronous programming
• Hands-on experience building and operating production systems
• Familiarity with distributed systems and event-driven architectures, including message brokers such as RabbitMQ or Kafka
• Understanding of scalability and reliability principles, with some exposure to performance tuning
• Solid experience with relational databases (preferably PostgreSQL); familiarity with NoSQL is a plus
• Experience working with APIs (any of REST, GraphQL, or gRPC)
• Hands-on experience with Entity Framework
• Hands-on experience with Docker; basic understanding of Kubernetes concepts
• Experience writing unit and integration tests
• Experience with any tools for continuous integration and delivery (preferably GitLab and ArgoCD)
• Comfortable working in a fast-paced Agile environment
• Understanding of modern AI capabilities and limitations, with hands-on experience using AI-powered coding assistants or agents
• English proficiency at B1 level or higher for technical discussions and documentation

Requirements

• Experience with ClickHouse or other analytical databases for large-scale data processing
• Experience with AWS or other cloud platforms
• Experience with fintech, trading, or other high-load domains

Benefits

• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company's approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)