Back End Developer

INTRODUCTIONWe are seeking a Mid-Senior Backend Developer to join our Istanbul Maltepe Office and contribute to mission-critical backend systems in the defense industry. You will collaborate with frontend teams to build secure, scalable, and high-performance solutions using technologies like FastAPI, Docker, and MongoDB. In a dynamic, agile software development environment, you’ll work on projects that demand precision, innovation, and adherence to strict security standards. If you thrive in a fast-paced setting and enjoy solving complex technical challenges in defense-grade systems, we want to hear from you.RESPONSIBILITIESDesign, develop, and maintain secure backend services using FastAPI (Python) and/or Go (Golang) for defense applications.Collaborate with frontend teams to integrate APIs, databases, and deployment pipelines.Implement and optimize SQL and NoSQL (MongoDB) solutions for mission-critical data storage.Build and maintain CI/CD pipelines using GitLab CI/CD for automated testing, deployment, and security compliance.Write unit/integration tests to ensure code reliability in a high-stakes environment.Containerize applications with Docker and manage deployments in secure infrastructure.Follow Git-based workflows (feature branches) in GitLab for collaborative, traceable development.Troubleshoot performance bottlenecks, debug issues, and enforce system scalability under strict security constraints.REQUIREMENTS3–5 years of backend development experience with FastAPI (Python) or similar frameworks (Flask, Django).Strong proficiency in SQL and NoSQL (MongoDB).Hands-on experience with Docker for containerization and secure deployment.Familiarity with CI/CD pipeline automation tools (CI/CD, GitHub Actions, Gitlab CI/CD).Experience writing unit tests and ensuring code coverage for mission-critical systems.Professional English proficiency for clear communication in cross-functional teams.Ability to work independently and collaboratively in a fast-paced, agile environment.Familiarity with Linux systems and command-line tools (bash, shell, etc.) for development and deployment.PREFERRED/PLUS IF YOU HAVEExperience with Go (Golang) for backend development in secure systems.Familiarity with message queues (Kafka, RabbitMQ) or microservices architecture.Contributions to open-source projects or a portfolio of backend applications in security-sensitive domains.Experience with agile methodologies (Scrum, Kanban) and DevOps practices.Hands on experience with LLM frameworks, agentic pipelines and tools etc.WHAT WE OFFERCutting-edge backend projects in the defense industry, with technologies like FastAPI, Docker, and MongoDB.A dynamic, agile-driven work culture with opportunities to take initiative and own high-impact tasks.Hybrid work model (2 days remote/week) and flexible working hours in a tech-forward environment.Competitive salary with performance-based bonuses and annual salary reviews.Private health insurance, meal card, and transportation assistance.Team-building activities, pre-work breakfast, and a positive, inclusive workplace.Career growth in a company committed to innovation, security, and engineering excellence.