Senior Backend Engineer (Remote From Spain)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Backend Engineer in Spain.This role offers the opportunity to lead the development and optimization of backend systems for a cutting-edge Web3 platform, powering multi-chain DeFi solutions for financial institutions and fintechs. You will design, build, and maintain scalable, robust, and secure backend architecture, ensuring high performance across a complex blockchain ecosystem. Collaborating closely with product, frontend, and design teams, you will influence the technical direction and quality of the platform. The position allows you to implement best practices, mentor junior engineers, and contribute to the evolution of cloud-native, containerized infrastructure. You will work in a fast-paced, innovative environment, solving challenging technical problems while shaping the backend foundation for global DeFi services.Accountabilities:Lead and actively participate in designing, developing, and maintaining backend systems and APIsArchitect scalable and robust solutions capable of handling growing user loads and multi-chain transactionsEnsure code quality through reviews, adherence to best practices, and maintainability standardsIdentify performance bottlenecks and optimize code and algorithms for high efficiencyImplement monitoring and debugging tools to maintain high system availabilityDevelop and maintain comprehensive test suites (unit, integration, end-to-end) for reliable systemsProvide guidance and mentorship to junior developers, sharing technical knowledge and best practicesAnalyze complex technical problems and propose effective, practical solutionsDocument code, APIs, and processes to facilitate team knowledge sharing and onboardingRequirements:Extensive professional experience as a Senior or Lead Backend Engineer, ideally in blockchain/Web3 environmentsStrong expertise with TypeScript andNode.jsin containerized environments (Docker)Solid understanding of document databases (MongoDB) and caching mechanisms (Redis)Experience with blockchain ecosystems, preferably EVM and Stellar networks, including production deploymentsKnowledge of software design, system architecture, and cloud-native infrastructure (AWS, Kubernetes)Familiarity with GitOps workflows, CI/CD, and monitoring best practicesExcellent communication, collaboration, problem-solving, and analytical skillsProactive, autonomous, and able to thrive in a fast-paced, distributed team environmentStrong written and verbal English skills for effective cross-functional collaborationBonus: experience with Stellar’s Soroban smart contracts and a Bachelor’s/Master’s in Computer ScienceBenefits:Permanent, full-time remote contract (EMEA or APAC with EU overlap)Salary: €90,000-€130,000 per year30 days of PTO and flexible working hoursEquity participation from day oneAnnual team offsitesChoice of work computer and equipment budget€1,000 personal development budget (after 6 months, pro-rated for first year)One-time €1,000 remote setup budget for coworking or home officeWhy Apply Through Jobgether?We use anAI-powered matching processto 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.#LI-CL1We 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.

Extensive professional experience as a Senior or Lead Backend Engineer, ideally in blockchain/Web3 environments Strong expertise with TypeScript and Node.js in containerized environments (Docker) Solid understanding of document databases (MongoDB) and caching mechanisms (Redis) Experience with blockchain ecosystems, preferably EVM and Stellar networks, including production deployments Knowledge of software design, system architecture, and cloud-native infrastructure (AWS, Kubernetes) Familiarity with GitOps workflows, CI/CD, and monitoring best practices Excellent communication, collaboration, problem-solving, and analytical skills Proactive, autonomous, and able to thrive in a fast-paced, distributed team environment Strong written and verbal English skills for effective cross-functional collaboration Bonus: experience with Stellar’s Soroban smart contracts and a Bachelor’s/Master’s in Computer Science

Permanent, full-time remote contract (EMEA or APAC with EU overlap) Salary: €90,000-€130,000 per year 30 days of PTO and flexible working hours Equity participation from day one Annual team offsites Choice of work computer and equipment budget €1,000 personal development budget (after 6 months, pro-rated for first year) One-time €1,000 remote setup budget for coworking or home office 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.

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Backend Engineer in Spain.