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Miratech

Senior Full Stack Java Engineer – CX & Contact Center Solutions

Miratech

. Lead solution architecture and detailed technical design for scalable, secure, and highly available CX and contact center capabilities .

Posted 10/7/2026full-timeRemote • United StatesSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in solution architecture and technical design for scalable contact center capabilities, with a strong focus on Java, Spring Boot, and API-first strategies. Proven ability to lead cross-functional collaboration and deliver high-quality, secure, and resilient systems.

Highest-signal resume keywords
Java DevelopmentSpring Boot FrameworkAPI-First DesignVoice Infrastructure ExpertiseEvent-Driven Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
MicroservicesREST APIsPerformance EngineeringData ModelingIntegration Data FlowsTestingSecurityPostgreSQLReactTypeScript
Soft Skills
Excellent CommunicationTechnical DocumentationClient-Facing Workshop Facilitation
Tools & Technologies
AWS ServicesAmazon ConnectFreeSWITCHKamailioWebRTCKafkaRabbitMQKubernetesJenkinsAPI Gateways
Industry Keywords
Contact Center PlatformsCX CapabilitiesDigital ChannelsMessaging ApplicationsRouting EnginesTelephony TroubleshootingWFM Processes

Tech Stack

Tools & technologies
AngularAWSCloudDistributed SystemsJavaJavaScriptJenkinsKafkaKubernetesMicroservicesNode.jsPostgresRabbitMQReactSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact
  • Lead solution architecture and detailed technical design for scalable, secure, and highly available CX and contact center capabilities
  • Design and develop Java and Spring Boot services, APIs, integration components, and reference implementations
  • Guide frontend architecture for agent, supervisor, and administration experiences using React and TypeScript
  • Define API-first and event-driven strategies, including domain boundaries, contracts, event schemas, versioning, resilience, and data ownership
  • Design integrations across voice infrastructure, digital channels, messaging applications, routing engines, contact center platforms, CRM, WFM, identity, knowledge, recording, analytics, and enterprise applications
  • Design and evolve carrier-grade voice and communications capabilities using FreeSWITCH, Kamailio, SIP, WebRTC, and Twilio or comparable CPaaS platforms
  • Translate business journeys and operational requirements into solution components, interaction flows, deployment views, and technical roadmaps
  • Define non-functional requirements for availability, performance, concurrency, security, privacy, observability, disaster recovery, and supportability
  • Review designs and code, identify technical risks, challenge assumptions, and drive pragmatic decisions balancing quality, time, and cost
  • Establish engineering standards, reusable patterns, quality gates, documentation expectations, and technology adoption guidance
  • Lead technical discovery, proof-of-concept work, platform assessments, modernization planning, and production-readiness reviews
  • Collaborate with client stakeholders, Product, Architecture, QA, DevOps, Security, Operations, and vendors to govern delivery and resolve critical technical issues

Requirements

What you’ll need
  • 8+ years of software engineering experience, including substantial ownership of architecture and technical delivery for distributed applications
  • Expert-level hands-on experience with Java, Spring Boot, microservices, REST APIs, persistence, security, testing, and performance engineering
  • Strong expertise in Angular or React and TypeScript
  • Practical familiarity with Node.js
  • Strong knowledge of voice infrastructure and real-time communications, including SIP, RTP, WebRTC, FreeSWITCH, Kamailio, session control, media handling, and telephony troubleshooting
  • Deep understanding of API-first design, event-driven architecture, messaging, distributed systems, and cloud-native engineering
  • Experience with PostgreSQL or comparable relational databases, data modeling, integration data flows, and transactional design
  • Experience with AWS services and Amazon Connect is preferred
  • Hands-on experience with contact center or CX platforms and customer routing and engagement concepts
  • Excellent communication skills, technical documentation, and client-facing workshop facilitation
  • Experience designing digital-channel and messaging applications is nice to have
  • Experience designing routing engines for voice and digital interactions is nice to have
  • Experience with Genesys, NICE, Five9, Amazon Connect, Cisco, Avaya, or comparable contact center platforms is nice to have
  • Exposure to WFM processes and integrations is nice to have
  • Familiarity with Kafka or RabbitMQ, Kubernetes, Jenkins, observability platforms, API gateways, and security architecture is nice to have
  • Practical experience with AI-assisted software development or AI-enabled solutions is a plus

Benefits

Comp & perks
  • Competitive compensation and benefits package
  • Health insurance
  • Relocation program
  • Remote work flexibility / Work From Anywhere Culture
  • Professional development opportunities
  • Certification programs
  • Mentorship and talent investment programs
  • Internal mobility opportunities
  • Internship opportunities
  • Impactful projects for top global clients
  • Inclusive and supportive work environment
  • Open communication
  • Regular team-building company social events