Brazil - Remote: Back-end Developer

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Job Duties

We are building a platform that merges real-time physics, structured knowledge, and autonomous intelligence. We are looking for developers ready to tackle one (or more) of those challenges :

Ingestion : Handling massive streams of sensor data with minimal latency.

Intelligence : Making LLMs deterministic and reliable within robust multi-agent systems.

Context : Modeling complex ontologies to map thousands of physical assets.

What You’ll Do

You will join a high-performance team, contributing to the Core Backend while focusing on one of the following distinct tracks :

Core Responsibilities

High-Performance APIs : Build low-latency Python services (FastAPI) to serve live data to frontend and AI models.

System Reliability : Debug complex concurrency issues and ensure production reliability in distributed systems.

Rapid Delivery : Adopt a \"deliver fast\" mentality without compromising on code quality, testing, or API design standards.

Possible paths to work on the Project (you can contribute to one or more) :

Streaming & High-Throughput Data

Build Streaming Pipelines : Design scalable services using Kafka and Spark / Flink to process raw sensor data in real-time.

Time-Series Optimization : Optimize database schemas (TimescaleDB) to enable fast historical data retrieval and implement algorithmic checks to validate sensor readings.

GenAI & Autonomous Agents

Build Autonomous Agents : Deploy stateful agents (using LangGraph) that plan tasks, query Knowledge Graphs, and execute tools without hallucinating.

Advanced RAG : Build Graph-RAG pipelines that combine semantic search with structured knowledge traversal for grounded answers

Graph & Knowledge Engineering

Knowledge Graph Engineering : Design domain ontologies in Neo4j, defining relationships between assets, documents, and time-series data.

Search Infrastructure : Implement Hybrid Retrieval logic combining Vector Search, Full-Text Search, and Graph traversal.

Qualifications

Must Haves :

Complete Bachelor's degree in Computer Science, Engineering, or related.

5+ years of experience in Python Backend development.

Advanced English communication skills.

Computer Science fundamentals : Data Structures and Algorithms.

Strong experience building and documenting REST APIs (FastAPI).

Good to Have :

Streaming : Proficiency with Streaming Technologies (Kafka, Flink, Spark) and Time-Series Databases (TimescaleDB, InfluxDB).

GenAI : Practical experience building applications with LLMs, Agentic Frameworks (LangGraph), and Vector Databases.

Graph : Hands-on experience with Graph Databases (Neo4j / Cypher), SQL database design, and Hybrid Search strategies

Background in Heavy Industry, O&G, or IoT data (MQTT, OPC UA).

Experience with Local LLMs (Ollama) for privacy-focused deployments.

Familiarity with Data Lineage or Metadata management.

Knowledge, Skills, and Abilities

We use a modern, high-performance stack. You should be proficient in the Core and deeply knowledgeable in your chosen track.

Core Backend : Python 3.12+ (FastAPI, Pydantic), Polars, Docker, Kubernetes.

Streaming : Apache Kafka, Flink, Spark Streaming, TimescaleDB, Tiger Data.

GenAI : LangGraph, LangChain, LiteLLM, Azure OpenAI / Anthropic / Local SLMs.

Graph / Data : Neo4j (Cypher), PostgreSQL (pg_vector, Full-Text Search).

Desired Profile

Problem Solver : You dig into logs to find the root cause of a data spike, a silent failure, or a disconnected node in a graph.

Modern Pythonista : You are up-to-date with modern Python async patterns and typing, ensuring code is high-performance and maintainable.

You understand Big O notation and how to optimize code for CPU / memory efficiency.

Halliburton is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex / gender, sexual preference / orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.

Location

Fully remote position.

Job Details

Requisition Number : 205554

Experience Level : Mid to Senior

Job Family : Engineering / Science / Technology

Product Service Line : Landmark Software & Services

Full Time / Part Time : Full Time

Employee Group : Temporary