Middle Backend Engineer at Finonex
Warsaw, Poland
Finonex – Finonex /
Hybrid /
Hybrid
On The Spot Development is a software development company that builds R&D teams for heavily invested startups and tech companies from the UK, EU, and Israel.
This job opportunity is for a position within one of our teams. You will be directly employed by On The Spot and will collaborate closely with our partner companies, contributing to their product's journey.
About the team
Finonex is a company that develops innovative and advanced online financial trading platforms. They focus on creating accessible, secure, and user-friendly trading experiences powered by cutting-edge technology, supported by 24/7 service.
Step into the world, where advanced technologies take center stage, transforming the online trading experience. With the cutting-edge approach, we follow edge & new methodologies, constantly pushing boundaries. We offer an excellent work environment where you will be challenged and encouraged to grow professionally.
Responsibilities
- Collaborate with the design team to translate wireframes and mockups into functional components, ensuring seamless user experiences
- Develop and maintain reusable and efficient code libraries to streamline the development process.
- Participate in code reviews, providing constructive feedback and ensuring code quality and adherence to best practices.
- Contribute to the continuous improvement of our Agile development process, including CI/CD pipelines and automated testing.
Must haves
- 3–5 years of professional experience using Node.js and C#.
- At least 2 years of hands-on experience with MSSQL, PostgreSQL, Redis, or MongoDB.
- Minimum 1 year of practical experience with AWS, Azure, or Google Cloud Platform (GCP).
- Proven experience managing high-scale production environments, including performance tuning and scalability.
- Strong background in developing RESTful APIs and web applications using frameworks like Express.
- Solid understanding of Agile methodologies, including CI/CD pipelines and automated testing strategies.
- Experience with message queues or event streams such as RabbitMQ or Kafka.
- Excellent verbal and written communication, with strong interpersonal skills for effective collaboration.
- Ability to work independently, take initiative, and own projects from concept to delivery.
- Comfortable working in Windows or Linux environments, and with container technologies like Docker.
- Familiarity with designing and building event-driven microservices architectures.
- Bachelor's degree in Computer Science or related field.
Benefits
- Work in a highly professional team. Informal and friendly atmosphere in the team
- Paid vacation — 20 business days per year, 100% sick leave payment
- Equipment provision
- Partially compensated educational costs (for courses, certifications, professional events, etc.)
- Legal and Accounting support in Poland
- Ability to work from our comfortable office in Warsaw at Prosta 51
- 5 sick days per year
- Medical insurance (after the end of the probationary period)
- Flexible working hours – we care about you (!) and your output
- English and Polish classes 2 times a week (online)
- Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
