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AI Research Engineer - Reinforcement Learning
Helsing is seeking an AI Research Engineer to develop and deploy reinforcement learning agents for autonomous aerial platforms. You will own the full pipeline from large-scale simulation training to real-time deployment on flight-ready hardware using Python, C++, or Rust.
Solar2D Game Developer, Part-Time AI Game Development - Remote (United States)
Part-time, fully remote contract role for OpenTrain AI (US): build and update 2D games in Solar2D using Lua — game mechanics, player controls, animation, UI, physics and collision detection — while debugging, tuning performance, and writing prompts and step-by-step instructions explaining your workflow for AI training.
Evals Research Engineer – LLM Agents & RL Environments
Research engineer building RL environments, evaluation systems, and rollout/grader infrastructure used to train and assess long-horizon enterprise AI agents. Work spans task and reward design, trajectory inspection, and shipping production-quality eval tooling, based primarily on-site in San Francisco.
Lead Software Engineer
Lead a team building AI-powered legal software: architect and ship legal applications with LLM/RAG features (document classification, e-discovery automation, AI-assisted research), own CI/CD and containerized cloud deployments, and mentor developers in Python. Core stack: Python, OpenAI/Claude APIs, Docker/Kubernetes, Azure/AWS/GCP.
Forward Deployed Engineer – Enterprise AI Infrastructure (On-site SF)
A founding Forward Deployed Engineer at a Series B AI infrastructure company (~75 employees) that converts enterprise documents into LLM-ready data. Day to day: run pre-sales technical evaluations and demos, own post-sales success for 1–3 enterprise accounts, and build eval harnesses, prototypes, dashboards, and API integrations, primarily in Python with LLM/OCR tooling. On-site in San Francisco.
Software Engineer (Early Talent)
Three-month paid Early Talent Program role for a software engineer on Nebius's Compute Control Plane team in Amsterdam, building the backend of the Nebius AI cloud (Compute API for VMs, disks, snapshots, GPU clusters) in Go, gRPC, Temporal and Kubernetes. Open to students, recent graduates, and early-career specialists.
Senior Backend Engineer
Senior Backend Engineer owning complex features end-to-end on Bridgewise's flagship B2B SaaS investment-AI platform: designing and scaling high-throughput Python microservices on AWS Kubernetes, building Kafka event-driven pipelines and NoSQL data layers (Couchbase, Redis) for tier-1 financial institutions.
TPU Compute RTL Design Engineer
Designs and verifies SystemVerilog RTL for the compute subsystem of Google's TPU AI accelerators: writing microarchitecture specs, implementing ASIC logic per quality guidelines, and partnering with design-validation and physical-design teams on testplans and timing closure. On-site in Sunnyvale or Austin; $138k–$197k plus bonus and equity.
Senior Forward Deployed Engineer (FDE) | Freelance / Part-Time
Part-time, freelance (2 hours/day, remote) Senior Forward Deployed Engineer who works directly with clients to turn business needs into custom AI-powered applications — building Generative AI, LLM, and RAG solutions plus API/cloud integrations using Python, LangChain/LlamaIndex, and AWS/Azure/GCP.
Mobile Security Researcher
The Mobile Security Researcher will analyze iOS and Android operating systems to identify vulnerabilities and develop security mechanisms for Appdome's mobile protection platform. The role involves reverse engineering, low-level system analysis, and collaborative feature development.
Senior Data Engineer (Hybrid) — AI & Fintech in Madrid
Senior Data Engineer at an AI fintech company in Madrid, in a hybrid role (onsite 2-3 days/week). Day to day involves building and maintaining ETL pipelines on cloud systems, writing high-quality Python with advanced SQL, and using tools like Airflow and Databricks, including work on RAG systems.
Senior DevOps Engineer (m/f/d) for Industrial AI Cloud
Senior DevOps engineer at T-Systems (Deutsche Telekom) building an industrial AI cloud with NVIDIA: designing CI/CD pipelines, Kubernetes- and GPU-based infrastructure, and automation (Terraform/Ansible), plus mentoring and technical leadership across teams in Spain.
Remote DevOps Engineer — AI Automation Pipelines
Part-time remote DevOps/Automation Engineer on Mindrift's Tendem project in Spain, designing, deploying, and maintaining cloud infrastructure for scalable AI automation pipelines. Requires 3+ years of DevOps experience, cloud platform expertise, monitoring skills, and a strong focus on system reliability.