Currency

Senior Backend Javascript Engineer

7 553 - 8 926 USDNet per month - B2B
5 722 - 6 812 USDGross per month - Permanent
JavaScript

Senior Backend Javascript Engineer

JavaScript

Prosta 20, Warszawa

Pragmile

Full-time
Permanent, B2B
Senior
Hybrid
7 553 - 8 926 USD
Net per month - B2B
5 722 - 6 812 USD
Gross per month - Permanent

Tech stack

    Node.js

    advanced

    English

    advanced

    JavaScript

    advanced

    AWS

    regular

    CI/CD

    regular

    SQL

    regular

    NoSQL

    regular

    React.JS

    nice to have

Job description


Are you a skilled software engineer passionate about backend technologies and cloud infrastructure? Join us as we build a cutting-edge Tech Hub in Warsaw for a global leader in online deferred payments, a rapidly growing startup transforming how people shop and pay worldwide.


Why Work with Us?

  • Innovative Technology: Shape real-world solutions by mastering backend systems, cloud platforms, and scalable architectures to redefine the future of payments.

  • Global Reach: Your work will power millions of seamless transactions, creating exceptional shopping and payment experiences.

  • Career Growth: We value talent and ambition, offering clear growth paths for those ready to tackle impactful challenges.

  • Collaborative Culture: Work with exceptional engineers in an environment that prioritizes creativity, collaboration, and innovation.


What We’re Looking For:

  • Proven expertise in backend development, cloud computing, and system architecture, complemented by frontend development skills.

  • Hands-on experience with AWS services and serverless architectures.

  • A solution-driven mindset, eager to work in dynamic, fast-paced environments.

  • A team-player approach with a proactive, growth-focused outlook.

  • English Proficiency: Minimum B2 level to collaborate effectively in an international team.


Our Work Style:

  • Backend-First Innovation: Lead initiatives in building scalable, high-performance systems, while collaborating across frontend and cloud domains.

  • Transparent Collaboration: Utilize tools like Slack and generative AI to streamline communication and teamwork.

  • Growth-Driven Culture: Embrace continuous learning and feedback to refine your skills and expand your expertise.

  • Hybrid Work Model: Split your time between the Warsaw office (3 days per week) and flexible remote work.


Key Technologies & Requirements:


Backend Development:

  • Core Language: Proficiency in Node.js for backend development.

  • System Design: Expertise in architecting scalable, event-driven systems with a focus on performance and maintainability.

  • Cloud & DevOps: Advanced knowledge of AWS services (e.g., Lambda, DynamoDB, S3, API Gateway, CloudFormation) and serverless architectures.

  • Databases: Strong proficiency with SQL and NoSQL databases (e.g., MongoDB, Firebase).

  • CI/CD: Solid experience in CI/CD pipelines, workflow automation, and using tools like npm or yarn.


Frontend Development:

  • Nice to have: React.js, Redux, Context API.


General Skills:

  • Strong debugging, refactoring, and clean, testable code writing.

  • Familiarity with performance optimization and API integrations.

  • Effective communication and collaboration in diverse team environments.


If you’re a Senior Software Engineer eager to specialize in backend technologies while leveraging full-stack expertise, this is your chance to make an impact in the fintech space. Apply today and join us in shaping the future of tech in Poland!

Tech stack

    Node.js

    advanced

    English

    advanced

    JavaScript

    advanced

    AWS

    regular

    CI/CD

    regular

    SQL

    regular

    NoSQL

    regular

    React.JS

    nice to have
Published: 17.09.2025
Office location

Senior Backend Javascript Engineer

7 553 - 8 926 USDNet per month - B2B
Apply

Senior Backend Javascript Engineer

Prosta 20, Warszawa

Pragmile

7 553 - 8 926 USDNet per month - B2B
5 722 - 6 812 USDGross per month - Permanent
By applying, I consent to the processing of my personal data for the purpose of conducting the recruitment process. Informujemy, że administratorem danych jest PRAGMILE z siedzibą w Warszawie, ul. Al. Jerozolimskie 92, 00-807 Warszawa, (dalej jako "a... MoreThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.