Upwork

Lead Machine Learning Infrastructure Engineer - Infrastructure & Data

Remote

Not SpecifiedCompensation
Expert & Leadership (9+ years)Experience Level
Full TimeJob Type
UnknownVisa
Information Technology & ServicesIndustries

Position Overview

  • Location Type: Remote
  • Employment Type: Contract
  • Salary: Not specified

Upwork is the world’s work marketplace. We serve everyone from one-person startups to large, Fortune 100 enterprises with a powerful, trust-driven platform that enables companies and talent to work together in new ways that unlock their potential. Last year, more than $3.8 billion of work was done through Upwork by skilled professionals who are gaining more control by finding work they are passionate about and innovating their careers.

The Machine Learning Infrastructure & Data team is responsible for architecting and building the foundational systems and tools that enable efficient development, deployment, and management of machine learning models at scale. As a Lead Machine Learning Infrastructure Engineer, you will be pivotal in designing, developing, and maintaining robust and scalable infrastructure components to support Upwork’s machine learning initiatives. You will work closely with cross-functional teams—including machine learning researchers, data scientists, and software engineers—to build state-of-the-art platforms and tools that accelerate the development and deployment of machine learning models.

Requirements

  • Strong technical expertise in designing and building scalable ML infrastructure.
  • Experience with distributed systems and cloud-based ML platforms.
  • Proficiency in programming languages such as Python, Java, or Scala.
  • Deep understanding of ML workflows, including data pipelines, model training, and deployment.
  • Passion for innovation and eagerness to implement the latest advancements in ML infrastructure.
  • Strong problem-solving skills and ability to optimize complex systems for performance and reliability.
  • Collaborative mindset with excellent communication skills to work across teams.
  • Ability to thrive in a fast-paced, dynamic environment with evolving technical challenges.

Responsibilities

  • Design, implement, and optimize distributed systems and infrastructure components to support large-scale machine learning workflows, including data ingestion, feature engineering, model training, and serving.
  • Develop and maintain frameworks, libraries, and tools that streamline the end-to-end machine learning lifecycle, from data preparation and experimentation to model deployment and monitoring.
  • Architect and implement highly available, fault-tolerant, and secure systems that meet the performance and scalability requirements of production machine learning workloads.
  • Collaborate with machine learning researchers and data scientists to understand their requirements and translate them into scalable and efficient software solutions.
  • Stay current with advancements in machine learning infrastructure, distributed computing, and cloud technologies, integrating them into our platform to drive innovation.
  • Mentor junior engineers, conduct code reviews, and uphold engineering best practices to ensure the delivery of high-quality software solutions.

Application Instructions

  • Not specified.

Skills

Distributed Systems
Cloud-based ML Platforms
Python
Java
Scala
ML Workflows
Data Pipelines
Model Training
Deployment
System Optimization
Problem-Solving
Communication

Upwork

Online platform connecting freelancers and clients

About Upwork

Upwork connects freelancers with clients looking for various services in the gig economy, which focuses on short-term contracts instead of permanent jobs. The platform allows freelancers to create profiles that showcase their skills, while clients can post job listings for specific projects. Freelancers bid on these projects, and clients choose the best candidates based on proposals and reviews. Upwork earns revenue through service fees charged to freelancers based on their earnings, with a tiered structure that rewards long-term client relationships. The platform also offers premium memberships and additional services for enhanced visibility and access to job listings. Upwork provides tools for time tracking, invoicing, and project management, making it easier for both freelancers and clients to manage their work and payments. The goal of Upwork is to facilitate successful project completion by bridging the gap between freelancers and clients.

San Francisco, CaliforniaHeadquarters
2015Year Founded
$143.8MTotal Funding
IPOCompany Stage
Consulting, Enterprise SoftwareIndustries
10,001+Employees

Benefits

Health Insurance
Unlimited Paid Time Off
401(k) Retirement Plan
401(k) Company Match
Parental Leave
Employee Stock Purchase Plan

Risks

Increased competition from Fiverr and Toptal threatens Upwork's market share.
The new Fiverr-style Project Catalog may commoditize services, reducing freelancers' perceived value.
Strategic shifts under new management may not align with current client expectations.

Differentiation

Upwork connects freelancers with clients across diverse industries, enhancing global work opportunities.
The platform offers tools like time tracking and invoicing for efficient project management.
Upwork's tiered fee structure incentivizes long-term client relationships, differentiating it from competitors.

Upsides

Upwork's acquisition of Objective AI enhances its AI capabilities for better talent matching.
The introduction of Featured Jobs increases visibility for job posts, attracting more candidates.
Upwork's recognition as the top job posting site boosts its credibility among employers.

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