Senior Node.Js Backend Engineer; Online Systems

Position: Senior Node.Js Backend Engineer (Online Payment Systems)
Senior Node.js Backend Engineer, Online Payment Systems – Bulgaria
In this role, you will contribute to the evolution of a high-impact platform used by millions of developers and organizations worldwide. You will focus on building and scaling backend systems that support secure, reliable online payment flows in a fast-growing, product-driven environment. Working closely with experienced engineers, you will have strong autonomy to design, test, and deploy your solutions. Your work will directly influence platform reliability, performance, and user trust.

This position offers the opportunity to operate at scale while staying close to modern open-source technology.
Accountabilities

Design, build, and maintain scalable backend services using Node.js and Type Script, with a strong focus on online payment systems
Contribute to the architecture and evolution of core backend components supporting high-traffic and high-availability use cases
Collaborate across the stack with engineers and product stakeholders to deliver robust, user-centric solutions
Ensure reliability, performance, and security of payment-related services and integrations
Write clean, maintainable, and well-tested code while continuously improving engineering standards
Participate in technical discussions, reviews, and iterations to drive platform-wide improvements

Requirements

Strong professional experience with Node.js, Type Script, and backend development in production environments
Solid knowledge of databases such as Mongo

DB and experience designing data models at scale
Proven experience working on online payment systems or transaction-based platforms
Good understanding of low-level systems concepts, with exposure to languages such as Go, Rust, or C considered a plus
Ability to work effectively in a fast‑paced, collaborative, and distributed engineering environment
Curiosity, autonomy, and a continuous learning mindset, with a passion for modern technologies

Benefits

Flexible working hours with remote‑friendly work options
Competitive compensation package including company equity
Health, dental, and vision coverage for employees and dependents
Generous parental leave and unlimited paid time off
Budget for conferences, training, and continuous education
Home office support and access to global office locations when needed
Inclusive culture with a strong focus on employee well‑being and growth

Why Apply Through Jobgether?
We use an AI‑powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top‑fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
We appreciate your interest and wish you the best!
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