Upstaff

Summary

ML Researcher / Engineer wanted to join a high-impact AI/ML team in performance marketing. The company runs campaigns across 25+ verticals, and you'll be researching, inventing, and implementing suitable ML models into campaign management, and porting successful pipelines and processes into a fully automated ML-driven system. Your models will influence real bidding, real budgets, and real campaign decisions.

What's the project about?

You'll be working with ML models for a performance-based (pay-per-lead) marketing platform that relies on prediction, scoring, and ranking. You’ll work with rich tabular data, build models that power optimization loops, and collaborate closely with business and Data Engineering teams to prepare your models for production, not just notebooks.

Required Skills:

• Experience building and validating tabular ML models
• XGBoost/LightGBM/CatBoost and similar models, corresponding Python libraries
• Defining metrics and design validation setups
• Confident feature engineering and data quality/wrangling
• Data pipelines

Would be a Plus:

• Experience with model serving (FastAPI, Bento, TorchServe)
• Monitoring: drift, data checks, stability
• Background in ranking/optimization models

What will you do?

• Build predictive, scoring, and ranking models directly impacting client campaigns and ROI
• Own dataset preparation, pipelines, processes, and validation strategies
• Design experiments that challenge assumptions and uncover real lift
• Collaborate with Software and Data Engineers on feature availability and consistency, packaging, and preparing models for real usage in production

Who you are?

You have strong, hands-on experience with tabular ML (XGBoost, LightGBM, CatBoost), you’ve trained and validated models, and you enjoy shaping experiments that prove whether a hypothesis lives or dies. You think clearly, value clean data, honest metrics, and production impact.

Summary

We’re expanding our team and looking for a versatile Cloud and Solution Architect and Senior Software Engineer to help manage and evolve multi-cloud applications and large data/AI pipelines.

This role would be an ideal fit for a software engineer with experience in high-performance multi-cloud infrastructure and complex microservice architecture applications with a serverless approach.

• Key skills: Node, Typescript, Serverless, AWS, GCP, SQL, data lakes, media data processing, scalable architecture, infrastructure design, system integration;
• Focus: Cloud-native architecture, large-scale data ingestion and transformation, AI-augmented media workflows, integration with ERP and financial systems;
• Required experience: 5+ years in data engineering and cloud architecture roles with strong hands-on skills in GCP and/or AWS;
• Experience with data streaming, system integrations, and media data transformation;
• Employment Type: Full-time; permanent/long-term
• Location: Remote.

Job Description

Fast-growing public company that delivers real-time visual experiences to millions of users across dynamic, high-traffic environments. Our AI-powered platform processes large volumes of media content in seconds - enabling instant access to personalized visuals in physical-world settings.

We are currently in the process of migrating more services towards AWS from GCP. The platform consists of multiple applications on Node.js/React, Python, Java, and Kotlin.

We’re looking for a Data Engineer/Cloud Architect to join our team and help us evolve our data platform, enabling new capabilities in media processing, personalization, and analytics at scale.

What You'll Do

• Design and build cloud-native architectures on GCP and AWS for high-throughput media workflows and analytics;
• Develop and optimize data pipelines for ingestion, transformation, and storage in data lakes;
• Integrate data from external systems, including ERP and financial platforms (both real-time and batch);
• Collaborate on implementing AI-driven enhancements into visual media workflows (e.g., segmentation, enhancement, dynamic rendering);
• Ensure systems are secure, scalable, observable, and aligned with best DevOps practices.
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Requirements

• 5+ years of experience in cloud data engineering or cloud architecture roles;
• Proficient with AWS and/or GCP (e.g. S3, Lambda, RDS, SNS/SQS, OpenSearch, Cloud Functions, BigQuery);
• Programming skills in Node and SQL;
• Strong experience with data lakes, ETL/ELT, and streaming pipelines (e.g. Kafka, Pub/Sub);
• Skilled in system integration, including third-party APIs and enterprise data platforms;
• Understanding of media data workflows, AI/ML-based transformations, and large-scale processing;

• Comfortable working with IaC, CI/CD, and monitoring tools. Heavy deployment, scaling, and management of containerized applications with Kubernetes.

   

Bonus Points

• Experience with real-time image/video transformation pipelines;
• Hands-on knowledge of AI frameworks (TensorFlow, OpenCV, etc.);
• Background in consumer media tech, interactive platforms, or digital personalization;
• Awareness of data privacy and secure architecture practices.

Interview Process

• Tech interview/coding SC algo tasks (similar leetcode, hackerrank)
• Delivery call 

Summary
Our client is a global provider of real estate advisory and professional services, specializing in commercial property management, investment sales, leasing, and valuation. The project focuses on delivering innovative solutions for corporate clients, investors, and developers, leveraging market insights and technology to optimize real estate strategies.

•  The ideal candidate will possess a proven track record of leading complex development projects and have a deep understanding of
  • Dynamics CRM (Sales and Customer Insights mainly)
  • PowerPlatform (Model-Driven and Canvas)
• The candidate should have excellent communication skills and a strong proactive and problem-solving mentality. They should also be able to mentor and guide junior team members while collaborating effectively with cross-functional teams.

Project Description

Our client is a global provider of real estate advisory and professional services, specializing in commercial property management, investment sales, leasing, and valuation. The project focuses on delivering innovative solutions for corporate clients, investors, and developers, leveraging market insights and technology to optimize real estate strategies. With a strong international presence, the company is committed to driving efficiency and value across various property sectors.

The ideal candidate will have a proven track record of leading complex development projects and a deep understanding of Dynamics CRM (Sales and Customer Insights mainly) and the PowerPlatform.

The candidate should have excellent communication skills and a strong proactive and problem-solving mentality. They should also be able to mentor and guide junior team members while collaborating effectively with cross-functional teams.

Requirements:

• Dynamics CRM (Sales and Customer Insights mainly, Customer Service), 3+ years
• PowerPlatform, 3+ years (PowerAps: Model-Driven та Canvas)
• Proactive and problem-solving mentality, lifetime

Primary Skills (Mandatory):

• Expertise in C# programming language
• Experience in backend development for CRM: including plugins, actions, and other related tasks
• Strong front-end CRM development skills, including Javascript, React, Typescript, and PCF custom controls
• Expertise in PowerAutomate
• Proficiency in Canvas Apps

Secondary Skills (Nice to Have):

• Experience in Azure Functions
• Knowledge of SPKL or similar tools for Continuous Integration and Continuous Deployment (CI/CD)
• Familiarity with reporting tools such as SSRS and PowerBI
• Experience in PowerPages
• Working knowledge of UX/UI core concepts

Key Responsibilities:

• Lead the development of complex engineering projects, from conception to delivery, ensuring high quality and innovative solutions. Demonstrate expert knowledge and practical application of programming languages, tools, methodologies, and best practices.
• Mentor junior team members, fostering a culture of learning and growth within the team.
• Collaborate effectively with cross-functional teams, including Engineering and Product teams, to identify, troubleshoot, and solve technical problems.
• Contribute to the continuous improvement of processes, systems, and technologies to enhance product development and team efficiency.
• Maintain open and effective communication, ensuring clarity of goals, roles, and technical requirements within the team and across the organization.
• Stay abreast of industry trends and advancements, integrating new and creative solutions to maintain competitive advantage.

Summary

• We have a new urgent vacancy for an Expert JavaScript / React Engineer 

• Client is a Payment processing and provider platform 

• Location: Europe - Poland, Ukraine (we look at Kyiv, Zhytomyr, Vinnytsia, Khmelnytskyi, Chernivtsi, Ternopil, Rivne, Zakarpattia, Ivano-Frankivsk, Lviv, Volyn regions), Spain, UK, Bulgaria. 

• Duration: a 3-month project, but with good chances to turn into a permanent engagement 

• PE (FOP 3 group) is needed 

• Start: ASAP 

• English: Upper-Intermediate and higher.

• Ridect Hiring Model (No Subcontract)

About the client

A fast-growing, profitable, well-funded, and dynamic global payments company. Its offices are located in Israel, New York, and more. It is serving thousands of corporates and millions of end-users (payment receivers), in 190+ countries.

R&D organization holds almost 500 workers (Developers, Automation QA, DBA, IT, Professional services / production support). R&D teams are operating in SCRUM methodology, with product managers involved in each team.

Client systems are based on Microsoft and open-source technologies serving both international WEB users and the company's internal users.

R&D is looking to extend its capacity for new-developments and existing product enhancements, with high-quality and fast pace of delivery.

With client’s fast, flexible, secure, and low-cost solutions, businesses and professionals in both developed and emerging markets can now pay and get paid globally as easily as they do locally.

About the role

As an Expert React Engineer, become a part of a cross-functional development team, engineering experiences of tomorrow. The client ecosystem domain is responsible, among other things, for the integration of partnerships (3rd party solutions).

Responsibilities:

• Collaborate with designers and developers to build responsive and user-friendly interfaces.
• Implement and maintain UI components using React.
• Write clean, efficient, and testable code under the guidance of more experienced colleagues.
• Troubleshoot and debug issues in web applications.
• Contribute to improving the usability and performance of our products.
• Front-end development to meet customers’ business needs and implement components according to a modern software development environment with acceptable quality and supervision;
• Taking part in the decision-making process in design application architecture, solution development, architecture, and code review;
• Describing own code within technical documents and simple diagrams, and providing inputs/updates to specifications for the solution;
• Writing automated tests;
• Proactive position in solution development, process improvements;
• Working in an international distributed team in an Agile environment;
• Following best practices and defined standards for implementing the web application
• Investigate and fix application bugs

Requirements:

• Experience in Front End development for more than 5 years, including recent experience in React
• Translate business needs into technical solutions and make decisions when building software (business-oriented);
• Proficiency in JavaScript/TypeScript, including knowledge of asynchronous

programming.

• Experience with modern JavaScript frameworks/libraries
• Understanding of server-side technologies
• Familiarity with CSS preprocessors (like SASS or LESS.) or modern styling techniques (e.g., StyledComponents).
• Understanding of responsive design and frameworks like Bootstrap or Foundation.
• Proficiency in Git and workflows (e.g., GitFlow).
• Ability to handle asynchronous operations
• Knowledge of front-end testing frameworks such as Jest, Mocha, or Jasmine.
• Understanding of best practices for optimizing front-end performance.
• Familiarity with tools for monitoring and improving performance
• Experience working in an Agile environment.
• Excellent communication skills and a willingness to learn.

Can be a plus:

• Experience with financial apps
• API integration
• Stable coins

Personal skills:

• Investigate issues.
• Able to work in distributed cross-functional teams effectively.
• Plan, schedule, and monitor your own work.
• Have learning agility (readiness for challenge and being open to change).