Senior .Net developer

FinDev is an international company created by IT engineers. We are specializing in the development of niche software for international banks and investment funds.

We are seeking an experienced Senior .Net developer to join our Sizing team. Sizing is a cutting-edge platform designed for portfolio management, enabling business users to adjust portfolio structures to meet specific metrics, simulate trading scenarios and generate comprehensive risk reports. Our system must handle intensive real-time calculations — each user input can trigger the processing of up to 300,000–500,000 values. This demanding workload requires an efficient and scalable backend that remains highly responsive under all circumstances, so the team pays a lot of attention to keep the backend responsive for any user's operations.

We need a developer who is capable in:

• truly knows OOP, design patterns, SOLID, KISS, DRY, YAGNI;

• the understanding of how to effectively utilize CPU and RAM resources;

• experience in multithreading, resolving race conditions and synchronization challenges;

• keen to get deep into business logic and domain specific knowledge;

• (micro) services, cloud architecture;

• contributing to CI/CD improvements.

Requirements & technologies:

• .Net 8.0

• Multithreading and async/await

• Microservices, k8s base

• HTTP - REST, Swagger

• Testing - xUnit, e2e tests

• SQL - PostgreSQL, EF Core

• Messaging (Kafka)

Nice to have experience

• AWS (MSK, EKS, DynamoDB, AppConfig, Elasticache, CloudFormation)

• Oracle

• gRPC

• Clickhouse

What we offer:

• Flexible work setup: remote work residing in Georgia, Poland or Serbia, or a hybrid model for those in Krakow, Poland (if preferred);

• Full health insurance coverage for those based in Poland;

• 50% coverage of health insurance for spouses and children in Poland;

• 24 days of paid vacation;

• 10 days of paid sick leave;

• 50% reimbursement for professional training, education, conferences;

• Work alongside a highly professional team;

• Engaging teambuilding events and activities.

In case of relocation to Cyprus, we offer:

• Flight tickets, accommodation rent for 1st month for our relocated employee and his/her official family;

• Support in visa application and issue process, entry permit and residence permit processing.