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Senior Full Stack Engineer
About On The Spot
About the team
A team is working on a financial protection service that aims to protect seniors from financial fraud.
The solution combines a simple and accessible web/mobile application with a secure backend, anomaly detection engine, and alerting mechanisms.
Seniors interact with the platform through an intuitive interface, while family members and caregivers receive timely notifications and insights. Administrators and analysts manage detection rules, monitor activity, and refine the system through a dedicated dashboard.
About the role
This role focuses on developing a Proof of Concept (POC) for a service that leverages AI-powered engines to detect and prevent fraudulent transactions
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Responsibilities
- Develop a simple web application that demonstrates the basic capability of the financial protection service.
- Develop a basic backend infrastructure to support the application
- Integrate a third-party AI engine (e.g. Gemini, GPT) to provide a basic fraud detection capability.
- Implement a user-friendly interface for the application, with a focus on simplicity and ease of use for senior citizens.
- Ensure seamless and automatic processing of transactions, with minimal manual intervention required from the user.
- Collaborate with the client to gather feedback and iterate on the POC to ensure it meets their requirements.
Requirements
- Experience with front-end development (e.g. React, Angular, Vue or Svelte)
- Familiarity with LLM tooling (e.g. Gemini, GPT)
- Knowledge of backend infrastructure development (e.g. Node.js, Python, Ruby)
- Experience with PostgreSQL or MySQL
- Ability to work collaboratively with the client to understand their requirements and gather feedback.
- Strong communication skills to ensure effective communication with the client and other stakeholders.
- Ability to work under tight deadlines and deliver a high-quality POC within a short timeframe (approximately 6-8 weeks).
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
Join us
To be considered for this position, you must have Polish citizenship, a D-type work visa, or a residence permit. Thank you!
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