Senior Backend Engineer (B2B Contract)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Backend Engineer (B2B Contract) in Israel.This is a high-impact opportunity for an experienced backend engineer to contribute to the development of advanced infrastructure supporting modern software security solutions. In this role, you will design and build scalable backend systems that power critical applications, working in a fast-paced and technically challenging environment. You’ll collaborate with cross-functional teams to define architecture and deliver robust, high-performance APIs. The position offers the chance to tackle complex engineering problems while ensuring reliability, scalability, and security at every layer. As a senior contributor, you will also influence technical direction and mentor other engineers. This role is ideal for someone who values clean code, strong system design, and meaningful technical impact.AccountabilitiesDesign, develop, and maintain scalable backend systems and APIs to support core platform functionalitiesCollaborate with product managers, frontend developers, and other stakeholders to define technical requirements and system architectureOptimize application performance, scalability, and security through best practices, testing, and code reviewsTroubleshoot, debug, and resolve production issues with a focus on minimizing downtime and ensuring system reliabilityContribute to architectural decisions and continuously improve system design and development processesMentor and support junior engineers, fostering knowledge sharing and technical growth within the teamConduct system evaluations and proactively identify opportunities for optimization and innovationRequirementsBachelor’s degree in Computer Science or a related field (or equivalent practical experience)At least 5 years of experience in backend development, building scalable and reliable applicationsStrong proficiency in Node.js and modern backend development frameworksSolid experience with both SQL and NoSQL databases and data modeling best practicesFamiliarity with cloud environments and microservices architectureStrong understanding of system design, performance optimization, and secure coding practicesExcellent problem-solving skills and attention to detailAbility to write clean, maintainable, and well-documented codeStrong communication skills and ability to work effectively in a collaborative environmentBenefitsCompetitive B2B contract compensation aligned with experience and expertiseFlexible remote work arrangements within GermanyOpportunity to work on cutting-edge technologies in a high-growth, innovative environmentExposure to complex, large-scale system design challengesCollaborative and engineering-driven culture with strong knowledge-sharing practicesAutonomy and ownership over technical decisions and project executionLong-term contract potential with impactful and meaningful workHow Jobgether WorksWe 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! Why Apply Through Jobgether?Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.