Senior Full Stack Python Engineer (Integrations)

Company: EPAM Systems

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.
We are building cloud-native platform services and need a Senior Full Stack Python Engineer (Integrations) to deliver scalable, event-driven solutions on AWS. You will build Python/FastAPI services, PostgreSQL data models, and React/TypeScript UI while delivering reliable REST APIs, webhooks, and third-party integrations with partners—apply now.
Responsibilities
* Design, deliver, and maintain scalable cloud-native applications and services
* Implement event-driven architectures with AWS Lambda, EventBridge, SQS and Step Functions
* Develop and support long-running, fault-tolerant workflows and asynchronous processing systems
* Create, roll out, and maintain REST APIs, webhooks and third-party system integrations
* Build backend services with Python, FastAPI and PostgreSQL
* Develop modern front-end applications using React and TypeScript
* Deploy and manage AWS infrastructure through Infrastructure as Code (CDK)
* Design data models and tune application performance using PostgreSQL
* Collaborate with product, engineering and external partners to deliver reliable integrations and platform capabilities
* Participate in Agile ceremonies, code reviews and technical design discussions
Requirements
* Proven 3+ years of experience developing applications in Python
* Solid background in building event-driven and serverless architectures on AWS
* Hands-on experience with AWS Lambda, EventBridge and SQS
* Strong proficiency with AWS Step Functions, IAM and CDK
* Demonstrated expertise designing and implementing REST APIs, webhooks and system integrations
* Strong experience with PostgreSQL, including schema design and query optimization
* Practical skills building web services using FastAPI and Pydantic
* Competency with React, TypeScript and Redux
* Deep understanding of distributed systems, asynchronous processing and workflow orchestration
* Working knowledge of OAuth2 authentication and authorization
* Proficiency using Git, Jira and Agile development practices
* English proficiency at B2 (Upper-Intermediate) level or higher
Nice to have
* Background in healthcare, laboratory or regulated environments
* Experience integrating with third-party platforms via REST APIs, webhooks and event streams
* Familiarity with workflow orchestration platforms such as AWS Step Functions or Temporal
* Ability to design resilient, observable cloud-native systems
We offer
* International projects with top brands
* Work with global teams of highly skilled, diverse peers
* Healthcare benefits
* Employee financial programs
* Paid time off and sick leave
* Upskilling, reskilling and certification courses
* Unlimited access to the LinkedIn Learning library and 22,000+ courses
* Global career opportunities
* Volunteer and community involvement opportunities
* EPAM Employee Groups
* Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

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