Senior Software Engineer (Backend)

About BreachLock

BreachLock is a fast-growing cybersecurity company focused on modern, scalable, and continuous security testing

solutions. We operate at the intersection of offensive security, automation, and cloud-native engineering—building

systems that are both resilient and intelligent.

Role Overview

We are looking for a Senior Backend Engineer with strong fundamentals and a builder mindset to help design and

and data-intensive applications in a fast-paced startup environment.

• Design, develop, and maintain scalable backend services and APIs
• Build and optimize microservices-based architectures
• Work with graph and relational databases to model complex security data
• Own end-to-end delivery of features—from design to deployment
• Collaborate with product, frontend, and security teams
• Improve system performance, reliability, and observability
• Participate in system design discussions and technical decision-making

• Languages & Frameworks: Python, FastAPI, Django
• Databases: PostgreSQL, MongoDB, Dgraph
• Infrastructure: GCP, Kubernetes
• Streaming & Messaging: Kafka
• Architecture: Microservices

• 3–4 years of backend development experience
• Strong proficiency in Python and modern backend frameworks
• Solid understanding of system design principles and distributed systems
• Experience with microservices architecture
• Hands-on experience with PostgreSQL and/or MongoDB
• Familiarity with event-driven systems (Kafka or similar)
• Experience deploying and managing applications on GCP
• Understanding of containerization and orchestration (Docker, Kubernetes)
• Strong debugging, problem-solving, and performance optimization skills

• Experience with graph databases (Dgraph or similar)
• Exposure to cybersecurity domain or security tooling
• Knowledge of observability tools (logging, tracing, monitoring)
• Experience working in high-growth startups

• Ownership mindset—you build, ship, and improve
• Ability to work in ambiguous, fast-moving environments
• Strong communication and collaboration skills
• Bias for action and continuous learning

• Work on real-world cybersecurity challenges at scale
• Opportunity to influence architecture and core systems
• High ownership and impact from day one
• Fast-paced startup environment with strong growth potential