Senior Full Stack Developer (Backend-Oriented)

Location: Bagira Systems Ltd. (IL)

Experience Level: Senior

Description

Bagira is a leader in the field of training and simulation systems with a track record of delivering high-end, customized, cost-effective solutions for mission readiness. Bagira’s simulators are being used by hundreds of thousands of soldiers at more than 80 sites worldwide.

Bagira is looking for a Senior Full Stack Developer (Backend-Oriented) with a strong backend orientation to join our engineering team.

You will work on cloud-based applications in a matrix organization, taking full ownership of features from design through production. The role emphasizes backend architecture, scalability, and reliability, with frontend work focused on integration, usability, and performance.

This is a full-time position, based at our headquarters in Modi'in.

What will you do?

• Own features end-to-end: requirements, architecture, development, testing, deployment, and production support. 
• Lead technical design for complex services, APIs, and integrations, considering scalability, performance, reliability, and maintainability. 
• Design, develop, and maintain cloud-ready backend services using .NET (.NET Core), including REST APIs, background services, security, and data access layers. 
• Drive system-level thinking across services, databases, and integrations with internal and external systems. 
• Consume and maintain frontend components using modern frontend technologies, with focus on clean integration with backend services rather than heavy UI design. 
• Collaborate closely with Product, QA, DevOps, and other engineering teams in a matrix environment while executing independently. 
• Improve engineering standards and code quality through reviews, mentoring, and technical guidance, especially around frontend testing and maintainability.
• Troubleshoot complex production issues, perform root-cause analysis, and deliver long-term, robust fixes. 
• Participate in estimations, planning, and technical decision-making, and influence the product roadmap through engineering insights.

Requirements

• 6+ years of professional software development experience, with a strong emphasis on backend development and meaningful full-stack exposure. 
• Deep expertise in .NET / .NET Core, including Restful API design, background processing, authentication and authorization, and integration patterns - Must
• Strong backend design and architecture skills, including SOLID principles, clean code, modularization, and real-world system design experience. 
• Frontend experience with modern frontend technologies, including component-based design, state management, routing, and API consumption. 
• Hands-on experience using AI-assisted development tools (e.g., Cursor/Copilot or similar) to improve productivity, code quality, debugging, and documentation, with good judgment and security awareness.
• Experience with cloud-native application development and operations on AWS, Azure and GCP.
• Strong experience with relational and non-rational databases (SQL Server, PostgreSQL, MongoDB, etc.), data modeling, indexing, and query optimization. 
• Comfortable with CI/CD pipelines, source control (Git), and modern development workflows.
• Excellent debugging skills across backend, frontend, and infrastructure layers. 
• Proven ability to work independently and take ownership in a matrix organization with minimal supervision. 
• Excellent communication skills and ability to present technical decisions clearly while collaborating effectively with multiple stakeholders in a matrix environment.

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