TL;DR

Senior Middleware Integration Developer (AI): Building and optimizing high-performance middleware and API integrations for a digital accelerator with an accent on secure payment flows, cash management, and AI-driven observability. Focus on microservices architecture, implementing enterprise AI governance, and ensuring regulatory compliance across complex distributed systems.

Location: Remote (EMEA Region)

Company

%hirify_global%, now part of EPAM, is a Digital Accelerator with over 20 years of experience, fostering innovation and creating high-impact solutions for clients across 11 countries.

What you will do

Develop and optimize backend and API integrations using Java (Spring Boot) and Python (FastAPI).
Work with messaging queues (Kafka) and databases (PostgreSQL, Redis) for data processing.
Implement robust security protocols (OAuth 2.1, OIDC, mTLS) and enterprise secret management.
Deploy and manage solutions on Kubernetes (AKS) using Terraform and GitOps (ArgoCD).
Integrate AI-assisted observability tools (Datadog AI/Dynatrace) and implement LLMOps.
Ensure compliance with regulatory frameworks such as PSD2, GDPR, and DORA.

Requirements

7+ years of experience in backend/API engineering with proven domain experience in Payments or Cash Management.
Strong expertise with Java (Spring Boot) and Python (FastAPI).
Hands-on experience with Kafka, schema registries, PostgreSQL, and Redis.
Deep understanding of OAuth 2.1, OIDC, mTLS, and enterprise secret management.
Experience with Kubernetes (AKS), service mesh, Terraform, and GitOps (ArgoCD).
Familiarity with Datadog AI/Dynatrace, vector DBs, RAG, LangChain, LLMOps, prompt engineering, and enterprise AI governance.
Proficiency in English and Spanish (tested).

Culture & Benefits

Permanent contract with a competitive salary.
Flexible work model and possibility of remote work.
Personalized career plan and continuous training (certifications, English, etc.).
Participation in stable projects with a strong technical component.
Flexible working hours and focus on work-life balance.
Social benefits tailored to your needs.