Senior Backend Engineer: APIs, Cloud & Scale

Black Financial Consult; Poland; Remote; PLN 60,000 - 90,000; Full time

Job summary

Black Financial Consult is seeking a skilled backend developer in Poland to build robust server-side applications and APIs that power digital platforms. Responsibilities include developing APIs, integrating third-party payment systems, and ensuring scalability and security.

The ideal candidate must possess strong programming skills in languages like Java, Python, or Node.js, with 6–9 years of experience in backend frameworks. Knowledge of cloud platforms and databases is also essential.

Qualifications

• 6–9 years of experience in backend development.
• Strong experience with APIs and backend frameworks.
• Proficient in programming languages such as Java, Python, or Node.js.

Responsibilities

• Develop APIs and backend services.
• Integrate third-party systems like payments and banking APIs.
• Ensure performance, security, and scalability.
• Collaborate with frontend, product managers, and other stakeholders.

Skills

API Development

Backend Frameworks

Java

Python

Node.js

SQL

NoSQL

Cloud Platforms

Docker

Kubernetes

Job description

Black Financial Consult is seeking a skilled backend developer in Poland to build robust server-side applications and APIs that power digital platforms. Responsibilities include developing APIs, integrating third-party payment systems, and ensuring scalability and security.

The ideal candidate must possess strong programming skills in languages like Java, Python, or Node.js, with 6–9 years of experience in backend frameworks. Knowledge of cloud platforms and databases is also essential.