Senior Full Stack Software Engineer

Sharetec Systems is a company focused on developing innovative core banking and lending software solutions for credit unions. They are seeking a Senior Full Stack Software Engineer to build technology that powers credit unions, working hands-on across the full stack to deliver reliable and user-friendly software.

Responsibilities:

• Architect scalable, secure, and maintainable systems across backend (Node.js), frontend (React), and database layers
• Lead design discussions, code reviews, and engineering best-practice initiatives
• Evaluate new technologies like Node.js frameworks (Express) and React tools and guide the adoption of tools that improve developer productivity and system performance
• Define and document architecture patterns, design principles, and shared libraries for reuse across teams
• Partner with DevOps to design efficient CICD pipelines, deployment automation, and observability tooling
• Mentor and coach mid-level and junior engineers to foster career growth and skill development
• Partner with Product Managers and stakeholders to translate business needs into technical solutions
• Provide feedback and guidance during design and implementation reviews
• Promote a culture of continuous learning, clear communication, and shared ownership across the team
• Complete assigned development and project tasks by due dates while maintaining a high standard of quality
• Work collaboratively with engineers, product managers, and QA across departments to deliver cohesive solutions
• Act as a technical resource and subject matter expert in your assigned product domain
• Contribute to process improvements, documentation, and internal tooling to enhance engineering efficiency
• Build an understanding of Sharetec’s architecture, domain, and codebase
• Complete onboarding and deploy your first contributions with mentorship
• Participate in planning and architecture discussions, bringing forward improvement ideas
• Lead a small-to-medium-size feature from design to production
• Build strong cross-functional relationships with other engineers, QA, and product managers
• Begin mentoring mid-level engineers, providing code review and technical guidance
• Serve as a technical owner for a significant domain or service
• Drive architectural improvements and influence long-term technology direction
• Enable your team to ship high-quality, maintainable code faster and more confidently

Requirements:

• 6 years of professional software development experience, including technical leadership on complex projects
• Deep proficiency with Node.js (e.g., Express) for backend platforms
• Advanced experience with React for modern front-end technologies
• Strong database design and data architecture expertise (PostgreSQL, SQL Server, or MongoDB)
• Experience integrating APIs and third-party systems securely and efficiently, with focus on RESTful design and performance
• Familiarity with implementing AI into products (e.g., integrating ML models via APIs)
• Proven ability to modernize legacy applications into modular Node.js/React designs
• Familiarity with DevOps tooling, CICD pipelines, and cloud services
• Strong understanding of software architecture, design patterns, and performance optimization
• Experience with MCP (Model Context Protocol) for AI-tool integrations and normalizing data to standards like FDX
• Familiarity with service bus integrations (Tibco, Mulesoft, Azure Service Bus, MQ)
• Excellent communication skills for articulating complex technical ideas to varied audiences
• Bachelors degree in Computer Science, Software Engineering, or equivalent experience
• Hands-on building MCP servers/clients in Node.js/React for fintech AI, plus FDX/service bus
• Experience leading small teams or serving as a technical lead on feature squads
• Experience designing distributed systems or microservice architectures with Node.js and APIs
• Hands-on experience with containers and orchestration (Docker, Kubernetes)
• Security-first mindset and experience implementing secure coding practices in React/Node apps
• Experience implementing AI/ML in fintech products (e.g., fraud detection, personalization)
• Prior experience in the financial services or fintech industries
• Familiarity with SOC 2 or other compliance frameworks