JustMarkets
via Greenhouse
.NET Engineer Middle
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 2d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 12d ago
The date the source published, not the day we noticed it (2026-09-03). Last seen at its source 1h ago.
Is it remote?
Remote
That is the location the employer filed this posting under. Quoted as written — we do not re-word the source's own location.
Who may apply?
Not stated
The description states no restriction of its own. This is the source's own tag.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
greenhouse employer's own board first seen 12d ago · last seen 1h ago
The listing
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 clean, maintainable code and components, following established architectural guidelines
- 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
Requirements:
- 3+ years of сommercial 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
Will Be a Plus:
- Experience with ClickHouse or other analytical databases for large-scale data processing
- Experience with AWS or other cloud platforms
- Familiarity with Infrastructure as Code tools such as Terraform
- Experience with fintech, trading, or other high-load domains
We offer:
- 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)
Role mission
- Solve company challenges by developing systems and automation
Requirements hard skills
- TBD and update during kick-off session
- 5+ years of experience with .NET Framework or .Net Core;
- Experience with RDBMS, NoSQL;
- Knowledge of Data Structures and Algorithms;
- Experience with Unit tests;
- Experience with API design;
- XP in various transport protocols;
- Solution-oriented mindset;
- Knowledge of patterns/anti-patterns of software design;
- Experience with Multithreading, Entity Framework;
- Experience with asynchronous systems and distributed stream
processing;
- Good understanding of Object-Oriented Development, Architecture,
and Design;
- Experience with real-time data processing;
- Experience with Docker (is a must) and Kubernetes;
- Strong communication skills and attention to detail;
- Comfortable with working in a fast Agile development environment.
Requirements soft skills
Customer first
Trust
Passionate about work
Continuous learning
Result driven
Ownership
Responsibilities
- TBD and update during kick-off session
- Develop applications and services using .Net Core;
- Working on technical designs, architecture, and new features;
- Communicate with the team to identify business requirements;
- Understand business requirements and develop systems/features
to meet them;
- Write unit tests, end-to-end tests, and stress testing;
- Write clear, modular, and maintainable code.