We're aiming to bring a Senior Fullstack Developer onto our expanding team. This position connects high-level business priorities with hands-on technical implementation across a widely distributed, multi-department organization. You'll infuse structured engineering rigor into fluid, still-forming problems, all while contributing to how the organization adopts and integrates new technology. It's an opportunity to make a real difference in how enterprise systems scale and connect.

Responsibilities

- Work hand-in-hand with product owners and stakeholders across IT, Sales, Finance, and HR, coordinating schedules to support live, direct collaboration

- Convert vaguely defined internal use cases into robust architecture designs, UX/flow diagrams, API contracts, and a development-ready backlog for the team in India

- Develop and interconnect agentic workflows spanning enterprise systems such as Salesforce, ServiceNow, Jira, Glean, and Oracle HCM

- Take charge of demanding integration projects, covering authentication setup, MCP tool access, data contract design, RBAC configuration, error handling, and production launch

- Sync up daily with the India-based team to resolve outstanding questions, review pull requests, eliminate integration hurdles, and maintain quality standards ahead of release

- Build out prototypes when needed, spanning UI components, agent flow design, or MCP/LLM integration work, then deliver a production-ready backlog to the India team

- Incorporate security, observability, and reusability principles into every build so agents deliver lasting value rather than functioning as one-time demos

Requirements

- Three-plus years of hands-on, relevant full-stack engineering experience, supported by a current and active delivery record





- Strong expertise in TypeScript/JavaScript paired with a modern frontend framework such as React or an equivalent tool

- Solid backend development background using Node.js or Python, combined with strong API and integration design capabilities

- Established track record delivering AI/LLM-driven solutions, including tool calling, RAG, agent frameworks, MCP, prompt workflows, or similar practical delivery

- Demonstrated ability to translate stakeholder workshop findings into functional architecture and a practical, actionable backlog

- Hands-on AWS delivery experience covering Lambda, API Gateway, ECS/EKS, S3, RDS/DynamoDB, IAM, and CloudWatch, plus enterprise authentication approaches such as SSO/Okta and RBAC

- Capable communicator who can lead technical discussions in English with US-based stakeholders, holding working fluency at B2 level or higher, converting business needs into agentic architecture

Nice to have

- Understanding of MCP gateways, LLM gateways, model routing approaches, policy/audit tooling, and cost/usage monitoring systems

- Background implementing OpenTelemetry or similar observability tools to monitor agent traces, tool call behavior, latency, and failure patterns

- Practical exposure to platforms such as Salesforce, Gong, Clari, Glean, ServiceNow, Oracle HCM, Concur, or similar HR/IT tools

- Experience transforming internal platforms or early prototypes into reliable, enterprise-grade production solutions

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

- Integral career opportunities

- Volunteer and community involvement opportunities

- EPAM Employee Groups

- Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

📌 Senior Fullstack Developer (Argentina)
🏢 EPAM Systems
📍 Argentina