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This role is for a Senior Python Backend Developer with over 7 years of experience building REST APIs and microservices using FastAPI, Django, and Flask. The position requires expertise in performance monitoring and troubleshooting using AppDynamics.
Develop and maintain the Python backend (FastAPI/PostgreSQL) for CynthAI, an AI-first analytics and decision-intelligence platform, contributing to architecture, scalability, security, and building APIs and services for internal teams and customers.
The Senior Elixir Backend Engineer will develop and maintain scalable microservices for recruitment software using Elixir, PostgreSQL, and ElasticSearch. The role involves working with REST and WebSockets in an international team based in Amsterdam.
This role involves hands-on backend development using C# and Java while providing technical leadership and mentoring to teams. The developer will drive software architecture and integrate AI-enabled tools and agent frameworks into the development lifecycle for intralogistics systems.
The Senior Backend Performance Engineer will focus on production profiling, service stability across multi-CSP environments, and latency optimization. The role involves building observability tools and managing critical incidents in a hybrid work model in Montréal.
CyberYozh is seeking a Senior Backend Developer to build and maintain data scraping infrastructure and API services using Python, FastAPI, and Django. The role involves managing large-scale data collection tasks, optimizing scraping performance, and collaborating with DevOps and QA teams in a fully remote environment.
Senior Back End Engineer building Hazel, Altruist's AI engine for wealth management — designing scalable data pipelines, optimizing search/retrieval infrastructure (vector databases, search indices), and shipping generative AI features that turn financial data into actionable advisor insights.
Senior Software Engineer building Go backend services for GPU health monitoring, telemetry ingestion, and fleet intelligence on NVIDIA's DGX Cloud infrastructure, using Go, PostgreSQL, Kafka, and Kubernetes.
Design and develop Go backend services and REST APIs for GPU health monitoring and fleet intelligence, building high-volume telemetry ingestion paths and optimizing database performance for NVIDIA's GPU infrastructure.
Backend-focused Senior Software Engineer on Pattern's cross-dock WMS team, building the core 'Shelf' warehouse operations platform that handles inventory tracking and fulfillment prep. Hybrid role in Lehi, Utah.
Senior Backend Engineer at Duolingo building and operating reliable, scalable systems across teams like Duolingo Score, Ads, Time Spent Learning, or Observability, using Java, Python, or Kotlin on public cloud infrastructure.
Design and build core backend infrastructure for AI data generation and evaluation pipelines using Python or Node.js, Kubernetes, Kafka, and Redis on AWS/GCP, owning scalability and performance of distributed, high-throughput systems.
Profile bottlenecks and write performance-critical code for high-throughput, low-latency data pipelines using C/C++, Python, and GPU-accelerated compute.
Senior Backend Engineer building a Python/FastAPI monolith that powers a social banking and cryptocurrency wallet platform, integrating with crypto wallet and banking providers on Postgres, Redis, and AWS.
Senior backend engineer developing and supporting .NET cloud-native services and integrations for the MTA E-Citations application using C#, ASP.NET Core, Azure/AWS, and enterprise integration patterns in a hybrid New York role.
Senior backend engineer designing, developing, and testing scalable server-side applications and services in Java and Node.js, using PostgreSQL, Azure, and RESTful APIs, while collaborating directly with clients across multiple long-term contract engagements.
Senior Backend Engineer on the Apple Pay platform building and operating massively scalable RESTful web services in Java/Kotlin, delivering production-quality service and client code against milestones.
The Senior Backend Engineer will build and evolve a modern, cloud-based platform using .NET/C# and GCP. This hands-on role involves developing scalable backend systems, participating in architectural decisions, and collaborating with a team to deliver high-quality software.
Senior Python Backend Engineer on a 12-month contract leading the modernization of high-performance backend services, decommissioning Rails components and migrating data models using Python alongside Rust, Java, or Ruby.
Senior Backend Engineer owning production Python/FastAPI services with Postgres and ClickHouse for an AI-powered private markets data intelligence platform, while mentoring a growing European engineering team.
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