Senior Backend Developer

2 weeks ago

Denpasar, Bali, Indonesia NucleusX B.V Full time
Senior Backend Developer

Location: Denpasar, Bali, Indonesia (On-site)

Employment Type: Full-time

Salary: IDR 15M - 20M (depending on experience)


About Us

We're an AI/BI company building with several back-end solutions, currently focusing on AI driven knowledge management products. Our mission is to help organizations turn their content and customer interactions into actionable insights using AI, machine learning, andautomation.

The product integrates via APIs and features a Control Center — where users analyze knowledge quality, provide feedback, receive content recommendations, and track customer engagement performance.

You'll join at a pivotal stage as we move from prototype to product, helping shape a scalable, data-driven SaaS platform. We work like a startup: hands-on, fast-moving, and collaborative. If you enjoy solving complex problems, learning quickly, and turning AI into real impact, we'd love to meet you.


Responsibilities

  • Develop and maintain scalable backend services and API layers powering the AI Control Center and client integrations.

  • Collaborate with data scientists to integrate AI models and expose insights securely and efficiently.

  • Design and optimize APIs for analytics, recommendations, and chatbot performance.

  • Implement authentication, authorization, and robust data protection mechanisms.

  • Manage cloud infrastructure using infrastructure-as-code principles.

  • Drive backend architecture decisions, code quality, and best practices.

  • Work in agile sprints, collaborating with frontend, product, and data teams to deliver high-quality releases.


Requirements

Must-Have Skills:

  • 4-7 years of experience as a Backend Developer.

  • Strong expertise in Python (FastAPI, Flask, Django, or similar).

  • OR experience with and willingness to work in a Python-heavy environment.

  • Solid experience designing and integrating APIs (REST, GraphQL is a bonus).

  • Strong grasp of server-side architecture, scalability, and performance optimization.

  • Hands-on experience with relational or NoSQL databases (PostgreSQL preferred; MongoDB a plus).

  • Familiarity with AWS (AppRunner, Lambda, API Gateway, S3, IAM, CloudWatch).

  • Proficiency with Docker and CI/CD tools (GitHub Actions, GitLab CI, etc.).

  • Strong understanding of authentication, authorization, and secure data handling. ten & verbal).

Preferred Skills & Qualifications:

  • Experience integrating AI/ML pipelines and exposing model outputs via APIs.

  • Familiarity with Azure OpenAI or other LLM platforms (OpenAI, AWS Bedrock).

  • Knowledge of event-driven systems or message queues (SQS, Kafka, Redis Streams).

  • Experience with infrastructure-as-code (Terraform, CDK).

  • Exposure to monitoring/observability tools (Datadog, Prometheus, New Relic, CloudWatch).

  • Interest in AI, chatbots, or knowledge management automation.


Why You'll Love Working Here

  • You will work in a high-paced international environment where you will be encouraged to learn and improve your skill set.

  • A competitive salary based on skills and prior experience.

  • Based in beautiful Bali, working directly on-site with a passionate and talented team.
  • If relocating from other parts of Indonesia, we offer one-time reimbursement for flights and relocation expenses.

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