Referso Jobs

Staff Data Scientist Reinforcement Learning – Offer Intelligence (m/f/d)

SIXT · Posted Nov 10, 2026

Open

Lisbon, Lisbon District, Portugal
Staff
5+ years

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Staff Data Scientist Reinforcement Learning – Offer Intelligence (m/f/d)

SIXT · Posted Nov 10, 2026

Open

Lisbon, Lisbon District, Portugal
Staff
5+ years

Apply with Referso

Lead Engineer

Majesco · Posted Nov 10, 2026

Open

Remote, India
Remote
Senior

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AI Agent Orchestration Engineer responsible for designing, building, and scaling graph-based AI agents and tools within Majesco’s AI-native platform.

Responsibilities

Design and implement typed agent state, schemas, data contracts, and validation using Python and Pydantic
Build LangChain and LangGraph workflows with conditional branching, parallel task execution, retries, sub-agents, checkpoints, and human-in-the-loop approvals
Develop and extend Majesco AI Core integrations using GraphExecutor, ExecutorFactory, ToolResolver, Agent Registry, Tool Registry, and MajescoCheckpointer
Design and implement reusable asynchronous tools, including API integrations, authentication, request/response handling, error recovery, registration, and database metadata
Create reliable graph-agent execution patterns that support modularity, testability, observability, and operational resilience

Requirements

Bachelor’s or master’s degree in Computer Science, Engineering, Information Technology, or a related discipline

Skills

Python asynchronous programming type hints Pydantic

Senior Backend Engineer

Newfold Digital · Posted Nov 5, 2026

Open

Remote, United States
Remote
Full-time · Senior
5+ years

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Design and scale async backend systems that treat AI as a first‑class citizen, building the AI‑native backbone of Bluehost’s platform.

Responsibilities

Design and scale async REST/WebSocket APIs in Python
Implement multi‑agent workflows to route work among specialized LLM agents
Integrate multiple LLM providers behind a provider‑agnostic layer
Build and maintain Retrieval‑Augmented Generation pipelines
Design schemas and evolve data models

Requirements

Nice to have: multi‑agent orchestration frameworks
Nice to have: Semantic Kernel
Nice to have: LangChain
Nice to have: LLM cost/observability tooling

Skills

Python async I/O REST APIs WebSocket APIs FastAPI dependency injection type hints vertical‑slice architecture

Platform Engineer, Python

eBay · Posted Nov 4, 2026

Open

Bengaluru, Karnataka, India
On-site
Full-time · Mid
3+ years

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Join the eBay Frameworks Team to build and grow the Python Managed Stack—eBay's paved path for Python application lifecycle management on eBay Cloud.

Responsibilities

Design, develop and maintain core Python modules used daily by internal engineers.
Drive certifications, automated monthly releases, and Site-Wide Upgrades (SWU) to ensure secure, seamless deployments.
Provide support to developers, debugging issues and triaging requests in our Slack channels.
Turn recurring issues into platform capabilities, automation, tests, or documentation to reduce recurring support work.
Maintain base images (Ubuntu 24 + Python 3.12), optimize image registries, and embed out-of-the-box tracing (OpenTelemetry), metrics (Prometheus), and logging.

Requirements

Nice to have: OpenTelemetry
Nice to have: Prometheus
Nice to have: Grafana
Nice to have: Sherlock
Nice to have: Internal Developer Platforms

Skills

Python Python 3.10+type hints async programming FastAPI

Staff Data Scientist Reinforcement Learning – Offer Intelligence (m/f/d)

Staff Data Scientist Reinforcement Learning – Offer Intelligence (m/f/d)

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Lead Engineer

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Senior Backend Engineer

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Platform Engineer, Python

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