Jobgether
Full Stack Software Engineer
- Location
- Spain, ES
- Arrangement
- Remote
- Employment type
- Full-time
- Posted
- 16 October 2026 (today)
Checked todayApplications go to the employer, never to RoleSprint
About this role
Accountabilities: As a Full Stack Software Engineer, you will contribute to the design, development, and maintenance of secure, scalable applications across the frontend and backend, ensuring that features meet business needs and production standards.
• Design, develop, test, and maintain full-stack features across web applications and backend services.
• Build and maintain backend APIs supporting customer onboarding, authentication, transaction lifecycles, and operational workflows.
• Develop and enhance frontend experiences for customer-facing platforms and internal web applications using React, Next.js, and TypeScript.
• Build backend services using Golang and/or Java within a scalable microservices architecture.
• Integrate applications with third-party services, external providers, and supporting systems.
• Implement secure authentication and authorization mechanisms using OAuth 2.0 flows.
• Work with relational databases, including PostgreSQL, to support reliable data storage and retrieval.
• Contribute to cloud-based infrastructure and containerized applications within AWS environments.
• Help maintain application security, performance, reliability, monitoring, and observability.
• Participate in code reviews, technical design discussions, and architecture decisions to improve software quality and maintainability.
• Write and maintain clear technical documentation covering application behavior, system architecture, and implementation decisions.
• Collaborate with engineering colleagues and relevant stakeholders to troubleshoot issues and deliver features from conception to production.
Requirements:
The ideal candidate is a versatile software engineer with experience across frontend and backend development, strong programming fundamentals, and the ability to build reliable applications in a distributed environment. You should be comfortable taking ownership of technical work, collaborating with other engineers, and applying secure development practices.
• At least 3 years of professional software engineering experience across frontend and backend systems.
• Strong backend development experience with Golang and/or Java.
• Proficiency in Node.js and TypeScript, particularly TypeScript version 5.
• Experience building modern frontend applications with React and Next.js.
• Solid understanding of RESTful API design and implementation.
• Strong SQL skills and practical experience with PostgreSQL.
• Experience working with AWS cloud services, including S3.
• Familiarity with microservices architecture and distributed backend systems.
• Understanding of containerized applications and infrastructure tools such as Kubernetes, Helm, and Terraform.
• Experience implementing authentication and authorization using OAuth 2.0 flows.
• Familiarity with application monitoring and observability tools such as Grafana or similar platforms.
• Experience using Git-based version control workflows and CI/CD pipelines.
• Ability to debug applications using development environments such as VS Code or Cursor.
• Strong problem-solving skills, attention to detail, and an understanding of secure, maintainable software design.
• Ability to communicate technical concepts clearly, participate in code reviews, and contribute to architectural discussions.
• Comfortable working independently in a remote environment while collaborating effectively with a distributed team.
Preferred Qualifications:
• Understanding of multithreading concepts and Go concurrency patterns, including goroutines.
• Experience with webhooks and/or WebSockets.
• Background in software architecture and system design.
• Familiarity with AI-assisted development tools.
• Experience in fintech, cryptocurrency, payments, or other regulated industries.
• Experience developing internal dashboards and operational tools.
• Additional knowledge of authentication, authorization, and secure system design.
Benefits:
• Competitive salary paid in USD, based on experience.
• 15 paid vacation days per year.
• Paid U.S. national holidays.
• Fully remote work arrangement, with the original listing specifying eligibility to work from anywhere in Latin America or Europe.
• Opportunity to build products supporting high-volume financial transactions within the fintech and cryptocurrency industry.
• Collaborative, high-trust working environment that values engineering ownership and technical judgment.
• Opportunity to work with modern technologies across backend development, frontend applications, cloud infrastructure, and security.
How Jobgether works: 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! 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.
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Work location
- ES
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About this listing
Published on Lever under the board identifier Jobgether, which is the name the employer’s own job board carries. RoleSprint has not verified the company’s registered or trading name, so it is shown exactly as published rather than tidied up.
RoleSprint is not the employer and not a recruiter. Applications are made on the employer’s own site and never reach us; what RoleSprint does is help you decide whether a role is worth your time and prepare for it if it is.
Published 16 October 2026, last checked today. A posting stops being advertised here 90 days after the employer published it, and one the employer takes down is marked closed rather than quietly removed.