Senior AWS Python Developer / Operations Engineer

We are looking for a Senior AWS Python Developer or AWS Operations Expert with 6+ years of experience to join our team. If you are a senior-level engineer who enjoys working independently with minimal supervision, making sound technical decisions, and guiding architectural direction on complex distributed systems, this is the perfect role for you. You are comfortable writing clean application code in Python and managing infrastructure as code in TypeScript, with a deep, operational understanding of DynamoDB. This project focuses on a highly scalable, event-driven core platform built using AWS serverless technologies. Our team is fully responsible for the end-to-end architecture, infrastructure, and automated testing strategy. Instead of starting from scratch, you will be expected to dive into an established, mature codebase, quickly adopt our engineering conventions, and work effectively to expand, secure, and scale platform capabilities. 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 Design, build, and maintain highly resilient, event-driven services running on AWS serverless infrastructureOwn and develop infrastructure as code (IaC) to ensure deployment reliability and consistencyActively contribute to architectural decisions, evaluate alternative design approaches, and document technical trade-offsFocus on operational excellence, ensuring services are secure, highly available, scalable, and easy to monitorWrite and maintain robust automated end-to-end tests to ensure high product qualityCollaborate closely with fellow senior engineers to evolve our developer platform capabilities and core engineering standards Requirements Python Development: Strong, hands-on professional experience using Python as your primary languageAWS Serverless & Fundamentals: Solid understanding of AWS infrastructure (VPCs, multi-account setups, security) and experience with AWS Lambda in high-traffic production environmentsIntegration Patterns: Practical experience designing and operating event-driven systems using EventBridge, SQS, and SNS, with a clear understanding of asynchronous communicationInfrastructure as Code (IaC): Solid experience using AWS CDK (ideally using TypeScript)DynamoDB (Deep Expertise): Exceptional architectural and operational knowledge of DynamoDB, including single-table design, access-pattern modeling, GSIs/LSIs, capacity planning, TTL, and operational troubleshootingDistributed Systems: Strong grasp of distributed data consistency (ACID vs. BASE, eventual consistency) and service boundariesAutomated Testing: Strong experience with automated testing strategies, ideally utilizing BDD frameworks (such as Behave)Data Modeling: Experience with schema definition and validation libraries like JSON Schema or Pydantic Nice to have Operational and development experience with AWS OpenSearchHands-on application profiling and memory optimization skillsExperience designing and managing GraphQL or REST APIsBackground in operating high-volume, mission-critical production workloads 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. LI-TZ1