Senior Backend Developer

Jobgether; Deutschland; Remote; EUR 100,000 - 140,000; Full time

Benefits offered by this job

Fully remote

Global teams

Competitive pay

Fintech exposure

Flexible culture

Professional growth

Job summary

Jobgether seeks a Senior Backend Developer in Germany to design scalable backend services for fintech platforms. You will build APIs, microservices, and secure data flows for a global user base, focusing on reliability and performance.

Collaboration with distributed teams and stakeholders is essential as you implement robust architectures. The role requires 5+ years of backend experience with Node.js, deep knowledge of microservices, databases (MySQL, MongoDB), and security best practices.

Qualifications

• 5+ years of backend experience with JavaScript/Node.js in production environments.
• Strong knowledge of microservices architectures and distributed backend systems.
• Experience building scalable fintech platforms, APIs, and services.

Responsibilities

• Design, develop, and maintain backend services and APIs for fintech/blockchain platforms.
• Collaborate with product managers, designers, and stakeholders to translate requirements into backend architectures.
• Improve and optimize existing Node.js services for scalability and reliability.
• Develop new microservices and ensure integration across distributed systems via RPC and APIs.
• Write and optimize complex queries for operational and financial reporting.

Skills

Node.js

JavaScript

Microservices

Relational databases

NoSQL

Security

Distributed systems

APIs

Blockchain experience

Redis

Tools

MySQL

MongoDB

Redis

RPC

REST APIs

Node.js tooling

Job description

We are currently looking for a Senior Backend Developer in Germany. This is an exciting opportunity for an experienced backend engineer to contribute to the development of scalable, secure, and high-performance financial technology solutions used by a global user base. In this role, you will design, enhance, and maintain backend services that power mission-critical digital asset and blockchain platforms. You will work in a fast-paced, innovation-driven environment where reliability, scalability, and security are central to every technical decision. The position offers the chance to collaborate with globally distributed engineering teams while building robust APIs, microservices, and backend infrastructures capable of supporting rapid growth. You will contribute to the architecture of cutting-edge fintech products and play a key role in delivering seamless user experiences across complex distributed systems. This role is ideal for someone passionate about backend engineering, modern financial infrastructure, and large-scale platform performance.

Accountabilities

• Design, develop, and maintain backend services and APIs that support scalable financial and blockchain-related platforms.
• Collaborate closely with developers, product managers, designers, and stakeholders to translate technical and business requirements into efficient backend architectures.
• Improve and optimize existing backend services built with Node.js to enhance scalability, performance, and reliability.
• Develop new microservices and backend solutions that communicate across distributed systems using RPC and other service integration methods.
• Write and optimize complex database queries for operational, compliance, and financial reporting purposes.
• Ensure backend systems follow strong security standards and best practices to protect platform integrity and user data.
• Contribute to high-availability architectures and real-time service responsiveness as the platform continues to scale globally.
• Participate in troubleshooting, debugging, and continuous improvement initiatives across backend infrastructure and services.
• Support agile development processes and contribute to the delivery of innovative features and platform enhancements.

Requirements

• Minimum of 5 years of professional experience working with JavaScript and Node.js in backend development environments.
• Strong understanding of microservices architecture and distributed backend systems.
• Proven experience contributing to the development of complex, high-scale platforms or applications.
• Hands-on experience with relational and NoSQL databases such as MySQL and MongoDB.
• Good understanding of backend security principles, secure API design, and best development practices.
• Ability to quickly learn and adapt to new technologies, tools, and technical environments.
• Familiarity with high-availability systems, real-time services, and scalable backend infrastructures.
• Experience with blockchain integrations or decentralized technologies is considered a strong advantage.
• Knowledge of technologies such as Redis, message queues, caches, and background job processing tools is highly desirable.
• Exposure to Ruby and Ruby on Rails is considered a plus.
• Strong analytical thinking, problem-solving skills, and the ability to work effectively in remote, collaborative teams.
• Excellent written and verbal English communication skills.

Benefits

• Fully remote work environment with the flexibility to work from anywhere.
• Opportunity to collaborate with globally distributed teams and industry-leading technology experts.
• Competitive compensation package aligned with experience and expertise.
• Exposure to cutting-edge fintech, blockchain, and digital asset technologies.
• Flexible work culture that supports autonomy, innovation, and continuous learning.
• Access to challenging large-scale engineering projects with real global impact.
• Inclusive and collaborative environment focused on technical excellence and professional growth.
• Opportunity to contribute to highly scalable and security-focused infrastructure used worldwide.
• Fast-paced, innovation-driven culture that encourages ownership and creativity.