NDA, Mobile Payment Platform | Senior Python Backend Developer
NDA, Mobile Payment Platform | Senior Python Backend Developer
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Job Description
On behalf of NDA Mobile Payment Platform SD Solutions is looking for a talented Senior Python Backend Developer.
We are seeking a Senior Python Developer with a passion for building robust scalable systems that support highconcurrency realtime mobile applications. In this role youll join a small empowered team responsible for designing and implementing the core backend services that power the NDA platform.
This is a rare opportunity to be part of an endtoend rebuild of a nationally trusted service using modern tools architecture and development practices from day one.
SD Solutions is a staffing company operating globally. Contact us to get more details about the benefits we offer.
Responsibilities:
- Design and develop scalable backend services using Python and modern frameworks (e.g. FastAPI)
- Build and maintain RESTful and GraphQL APIs to support SkyCashs iOS Android and web applications
- Collaborate closely with mobile and frontend teams to ensure seamless integration and optimal performance
- Build realtime features using asynchronous programming (e.g. asyncio)
- Work with SQL and NoSQL databases to store and process large volumes of transactional data
- Ensure reliability and performance under high user load and concurrency
- Implement CI/CD pipelines using tools like GitHub Actions Docker and Kubernetes
- Write clean testable and maintainable code following modern development best practices
- Take ownership of features including testing and production readiness
- Leverage AI tools where appropriate to optimize workflows and productivity
Requirements:
- A backend engineer with 5 years of experience especially in designing highscale mobileconnected APIs
- Skilled in Python asynchronous programming and frameworks like FastAPI Flask or similar
- Comfortable with realtime communication technologies such as WebSockets
- Strong understanding of clientserver architecture and API design principles
- Familiar with both SQL and NoSQL databases (DynamoDB experience is a plus)
- Experience with cloud platforms (AWS GCP or Azure) and serverless architecture
- Proficient in containerization (Docker) and deployment via CI/CD pipelines
- Advocates for code quality including writing unit/integration tests and automated pipelines
- Motivated responsible and proactive you own your work from start to finish
- Comfortable working in a fastpaced flexible environment with small autonomous teams
- Open to working 3 days/week onsite at our Polish office
Advantages:
- Experience working in or migrating from Javabased systems
- Familiarity with mobile analytics tools like Firebase Mixpanel etc.
- Experience collaborating with mobile developers (native or React Native/Flutter)
- Understanding of monitoring tools (Prometheus Sentry ELK)
- Contributions to opensource projects or active participation in developer communities
About the company:
NDA Mobile Payment Platform is one of Polands leading mobile payment platforms enabling millions of users to purchase public transportation tickets pay for parking top up phones and more all from a single intuitive app.
As we undergo a significant technological transformation were rebuilding our platform from the ground up to enable speed flexibility and innovation. Were replacing legacy systems with a scalable Pythonbased architecture and integrating realtime and AIdriven components to deliver a bestinclass digital mobility experience.
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Required Experience:
Senior IC
Employment Type
Full-Time
