Freelance Python Full-Stack Developer (Python • Kafka • Java)

Company Description

ThreatXIntel is a startup specializing in cybersecurity services to help businesses and organizations safeguard their digital assets from cyber threats. Our team offers tailored, cost-effective solutions in areas such as cloud security, web and mobile security testing, DevSecOps, and comprehensive cloud security assessments. With a proactive approach, we continuously monitor and test client systems to identify vulnerabilities before they can be exploited. Our mission is to deliver high-quality cybersecurity services, empowering clients to focus on growing their businesses with peace of mind.

Role Description

We are seeking a highly skilled Python Full-Stack Developer with approximately 7+ years of experience in backend and frontend development, event-driven architectures, and distributed systems. The ideal consultant must be strong in Python , have working knowledge of Java , and hands-on experience with Apache Kafka for streaming / messaging pipelines.

Key Responsibilities

Develop and maintain full-stack applications using Python (primary) and Java (secondary).

Build REST APIs, microservices, and backend components using modern Python frameworks.

Implement event-driven architecture using Kafka , including producers / consumers, topics, partitions, and streaming workflows.

Design and develop frontend components using modern JavaScript frameworks (React / Angular / Vue).

Integrate backend services with databases (SQL / NoSQL).

Implement CI / CD pipelines, Git workflows, and automated testing.

Troubleshoot production issues and optimize application performance.

Collaborate with cross-functional engineering teams to deliver scalable and secure solutions.

Required Skills & Experience

7+ years of hands-on development experience.

Strong expertise in Python (Django / Flask / FastAPI).

Good working experience with Java for service-level integration or backend tasks.

Hands-on experience with Kafka (consumer groups, partitions, stream processing, message retention).

Strong understanding of microservices, REST APIs, and event-driven systems.

Experience with SQL / NoSQL databases (PostgreSQL, MySQL, MongoDB, Redis).

Knowledge of Docker, Kubernetes, or cloud platforms (AWS / GCP / Azure).

Familiarity with authentication frameworks (OAuth2, JWT) and best security practices.

Strong debugging, problem-solving, and communication skills.

Nice to Have

Experience with container orchestration (Kubernetes).

Experience with CI / CD tools (GitHub Actions, Jenkins, GitLab CI).

Knowledge of async frameworks (Celery, asyncio).

Exposure to big data or real-time streaming patterns.