Senior Full Stack Java Engineer – CX & Contact Center Solutions
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Job Description
Senior Full Stack Java Engineer architecting Java, React, voice, and messaging solutions. Delivering scalable CX and contact center technology for global enterprise clients.
Responsibilities:
- 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:
- 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:
- 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
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