Upwork ($UPWK) is the world’s work marketplace. We serve everyone from one-person startups to over 30% of the Fortune 100 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 $3.3 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. 

This is an engagement through Upwork’s Hybrid Workforce Solutions (HWS) Team. Our Hybrid Workforce Solutions Team is a global group of professionals that support Upwork’s business. Our HWS team members are located all over the world.


Work/Project Scope: 

  • Join a team of ML engineers & managers to collaborate on building and productizing machine learning products serving high business impact. 
  • Design and implement  APIs and integrations between our machine learning platform services with the rest of the company’s systems.
  • Maintain and monitor machine learning pipelines in-production and drive model retraining in automated or semi-automated fashion.
  • Contribute to a scalable infrastructure and ML platform for all of the ML teams at Upwork. 
  • Work cross-functionally to drive improvements in processes or systems ensuring alignment with key imperatives and core strategies of the Machine Learning Engineering organization

Must Haves (Required Skills): 

  • Hands-on MLE experience designing ML-focused platforms and infrastructure that accelerate model development, training, deployment and monitoring
  • Bonus for “self-service” model development tooling, training and model deployment at scale.
  • Proficient with Java and Python, hands-on MLE experience (Spark, Databricks, SageMaker), 
  • Proficient with java microservice frameworks (Spring or Guice etc) deployed in the distributed and cloud-based environment.
  • Experience with MLOps platforms (MLFlow), building CI/CD pipelines (Jenkins), databases (SQL, DynamoDB, Redis) and ML libraries (pandas, tensorflow, pytorch, etc).
  • Demonstrable experience of delivering product features within tight deadlines, in collaboration with multiple partner groups and contending priorities.
  • Proven ability to work in a fast-paced, iterative environment and lead the parallel development and delivery of features on multiple related product areas. 
  • Experience driving large, scalable system architectures partnering with technology leaders in the company. 
  • Excellent documentation and writing skills.
  • Good critical thinking skills to transform data into actionable insights. 
  • Excellent communication and analytical skills, with an ability to effectively communicate to team leaders and senior executives.
  • Passion for Upwork and a deep appreciation of Upwork’s mission and impact.

Upwork is proudly committed to fostering a diverse and inclusive workforce. We never discriminate based on race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical condition), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.   

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