Senior AWS Cloud-Native Python Developer

We are looking for an experienced Amazon Cloud Native Python Developer to join our team working on an internally developed, event-driven platform built on AWS serverless technologies. This role is ideal for an engineer experienced in event-driven systems built on AWS integration tools, or an Operations expert skilled in AWS, DynamoDB, and OpenSearch. The team owns the architecture, infrastructure, and end-to-end testing strategy, so engineers are expected to work effectively within an established codebase and set of engineering conventions rather than focusing solely on greenfield development. This is a fully remote position that offers you the flexibility to work from any location in Armenia, whether it's your home or well-equipped offices in Yerevan or Gyumri. Responsibilities Work independently with minimal supervisionMake sound technical decisions and justify trade-offsNavigate and contribute to complex distributed systemsInfluence architectural direction, not just implement requirementsDesign, build, and maintain event-driven services running on AWS serverless infrastructureContribute to architectural decisions and document design choicesDevelop and maintain infrastructure using Infrastructure as CodeEnsure reliability, scalability, and operational excellence across servicesWrite and maintain automated end-to-end testsCollaborate with other engineers to evolve platform capabilities and engineering standards Requirements 6+ years of relevant professional experience with Python as a primary development languageSolid understanding of AWS architecture, including VPCs, networking fundamentals, and multi-account environmentsKnowledge of AWS security, operational best practices, and how AWS services integrate within larger systemsHands-on experience with AWS Lambda, event-driven application design, and production operation of serverless workloadsExpertise in messaging and integration patterns, with experience designing and operating systems using EventBridge, SQS, and SNSUnderstanding of asynchronous communication patterns and distributed system design principlesProficiency in Infrastructure as Code using AWS CDK, ideally in TypeScript (application code is primarily Python; infrastructure is defined in TypeScript)Deep operational and architectural expertise in DynamoDB, including single-table design, access-pattern-driven modelling, and GSIs/LSIsCompetency in DynamoDB capacity planning and capacity modes, Streams, and TTLSkills in DynamoDB Point-in-Time Recovery (PITR), operational monitoring, and troubleshooting beyond basic CRUD operationsStrong understanding of distributed data consistency, including ACID vs. BASE trade-offs, eventual consistency, and implications of consistency models in DynamoDB and event-driven architecturesBackground in designing and operating event-driven microservice architectures, covering service boundaries, event contracts, failure handling, and scalability/resiliencyCapability to evaluate multiple design approaches, make informed architectural decisions, and drive technical direction independently while clearly communicating and documenting trade-offsExperience with automated testing strategies, including end-to-end testing, with familiarity with BDD frameworks such as Behave being highly desirableQualifications in data modelling and validation using JSON Schema, Pydantic, or similar frameworksExcellent command of written and spoken English (B2+ level) Nice to have OpenSearch development and operational experienceSkills in application profiling and memory optimizationBackground in monitoring and operating high-volume, mission-critical systemsExpertise in API design and implementationFamiliarity with GraphQL We offer We connect like-minded peopleDelivering innovative solutions to industry leaders, making a global impactEnjoyable working environment, whether it is the vibrant office or the comfort of your homeOpportunity to work abroad for up to two months per yearRelocation opportunities within our offices in 55+ countriesCorporate and social eventsWe invest in your growthLeadership development, career advising, soft skills and well-being programsCertifications, including GCP, Azure and AWSUnlimited access to EPAM's internal learning databaseFree English classes with certified teachersWe cover it allParticipation in the Employee Stock Purchase PlanMonetary bonuses for engaging in the referral programComprehensive medical & family care packageFour trust days per year for personal needsDiscounts for fitness clubsBenefits package (hotels, restaurants, stores and services) EPAM Armenia is a team of talented innovators united by a passion for technology. In 2014, we opened our first office in Yerevan, and now we have a second engineering hub in Gyumri. We've built a continuously learning organization that helps its employees rapidly advance their careers. Here you will work with the world's industry leaders, support impactful projects using the latest technologies, collaborate with multi-national teams, and have access to a wide variety of development opportunities.