AI and Data Specialist

Mekari; Jakarta Pusat; On-site; IDR 240,000,000 - 420,000,000; Full time

Job summary

Mekari, Indonesia's leading SaaS company, is seeking an AI/Data Builder to own AI/ML/LLM data products and guardrails. You will ship end-to-end AI/data capabilities, measure quality, and iteratively improve prompts, models, and pipelines in production.

The role emphasizes probabilistic behavior, data quality, and user trust, with close collaboration with Platform and Product teams. Join a fast-growing environment where you will stay close to users, define success metrics, design evaluation

Qualifications

• 2-3+ years in full-stack engineering or applied software development using AI/data use cases.

Responsibilities

• Own AI/data behavior quality and guardrails in production.
• Ship AI services, ML models, LLM workflows, and data pipelines as product capabilities.
• Define prompts, retrieval logic, model configs, and data transformations.
• Test behavior with eval sets, golden datasets, and human review.
• Manage risk: grounding, hallucination, bias, privacy, latency, cost, drift.
• Release with guardrails, monitoring, and human-in-the-loop controls.
• Iterate prompts, models, and pipelines based on usage data.
• Collaborate with Platform Builders and Product Builders to ensure release readiness.

Skills

AI/Data systems

Full-stack engineering

Prompt engineering

Data quality

Model evaluation

RAG systems

Pipeline design

Tools

Python

ML frameworks

LLM tooling

Retrieval systems

Job description

Mekari is Indonesia's no. 1 Software-as-a-Service (SaaS) company. With our ecosystem of software solutions—including Mekari Jurnal, Mekari Talenta, Mekari Qontak, and Mekari Flex, we aim to facilitate entrepreneurs and leaders as they accelerate the digital transformation of their businesses.

In our 10+ years of journey we have reached over 3 Million platform users, and we're not planning to stop any time soon. We need more people like you: builders and owners with calculated ambition who are ready to#ElevateThroughImpactand raise Indonesia's software standard.

Job Description:

The AI/Data Builder is an AI-native Builder who owns AI, ML, LLM, data, and non-deterministic system quality. This role expects to stay close to users and ships end-to-end, user-accessible AI/data products, features, modules, workflows, services, and decision-support capabilities. What sets this role apart is deeper accountability for the quality of probabilistic behavior, data quality, model behavior, evaluation systems, AI trust, guardrails, and continuous improvement. The mission: build, ship, measure, and improve AI/data capabilities that are useful, safe, trusted, measurable, and valuable for users.

• User & product alignment. Stay close to workflows, feedback, and production behavior to define what "good vs. unacceptable" AI behavior looks like for the use case.
• Build & ship. Develop AI services, ML models, LLM workflows, RAG systems, data pipelines, and model integrations as real product capabilities (not just experiments).
• Configure & construct. Own prompts, retrieval logic, model configs, orchestration flows, and data transformations.
• Validate quality. Test behavior through eval sets, golden datasets, scenario/adversarial tests, regression evals, and human review.
• Manage risk. Handle grounding, hallucination, bias, privacy, latency, cost, and drift concerns.
• Release responsibly. Ship with guardrails, fallbacks, monitoring, and human-in-the-loop controls.
• Iterate. Continuously improve prompts, models, and pipelines based on real usage data.
• Cross-functional collaboration. Partner with Platform Builders (deployment, agent tuning) and Product Builders (user value, trust boundaries, release readiness).

Requirements:

• 2 - 3+ years in full-stack engineering or applied software development using AI/data use cases.
• Experience with AI, ML, LLM, RAG, data, analytics, and intelligent product systems.
• Proficiency in prompt, context, retrieval, model, orchestration, and data-system design.
• Experience with data pipelines, data quality, freshness, lineage, completeness, and correctness.
• Demonstrated ability with evaluation design, golden datasets, regression evals, scenario tests, and human review.
• Working knowledge of grounding, hallucination control, refusal behavior, guardrails, safety, and trust.
• Experience monitoring for drift, quality degradation, latency, cost, user feedback, and production behavior.
• Track record shipping AI/data-powered products, features, modules, workflows, services, or decision-support capabilities.
• Preferred Traits
  • Experience collaborating with Platform Builders on agentic build workflows, especially agent tuning, evaluation, and improvement.
  • Comfort defining risk tolerances and behavior standards for non-deterministic systems (i.e., systems where output varies based on models, prompts, retrieval, data, context, or user input, and can't be verified by exact-output tests alone).
• Mindset
  • A builder who takes deep ownership of AI/data behavior quality — someone who treats evaluation, monitoring, and continuous improvement as core parts of shipping, not afterthoughts, and who partners naturally with Product and Platform counterparts (this role isn't research-only, model-only, or analytics-only — it's about shipping real AI/data-powered capability and managing its quality in production).

We wish you the best. Hope to see you around soon!