Senior Level Full Stack Engineer - CX & Contact Center Solutions

Miratech; Canada Hill; On-site; CAD 110,000 - 150,000; Full time

Benefits offered by this job

Relentless Performance culture

Competitive pay & benefits

Growth opportunities

Global impact

Multicultural environment

Sustainability goals

Job summary

Miratech is seeking a Senior Full Stack Engineer to provide hands-on technical leadership across CX and contact center solutions. You will shape scalable solutions using Java, Spring Boot, React, TypeScript, API-first design, and cloud-native practices while remaining directly involved in critical engineering work.

The role includes designing, developing voice infrastructure, digital-channel and messaging applications, and intelligent routing capabilities.

Qualifications

• 8+ years of software engineering with ownership of architecture and delivery.
• Expert in Java, Spring Boot, microservices, REST APIs, security, testing, and performance engineering.
• Strong expertise in React and TypeScript with ability to guide frontend architecture.
• Familiarity with Node.js for services and integrations.
• Deep knowledge of voice infrastructure and real-time communications (SIP, WebRTC).
• Understanding API-first design, event-driven architecture, and cloud-native engineering.
• Experience with PostgreSQL or similar relational databases.
• Hands-on with contact center platforms and customer engagement concepts.
• Excellent English communication, including technical documentation and client-facing workshops.

Responsibilities

• Lead solution architecture and detailed technical design for CX and contact centre capabilities.
• Design and develop Java/Spring Boot services, APIs, integration components, and reference implementations.
• Guide frontend architecture for agent, supervisor, and admin experiences using React and TypeScript.
• Define API-first and event-driven strategies, contracts, versioning, and resilience.
• Design integrations across voice infrastructure, digital channels, routing, CRM, and analytics.
• Translate requirements into deployment views and technical roadmaps.
• Review designs and code, identify risks, and balance quality, time, cost.
• Establish engineering standards and reusable patterns; drive production readiness.

Skills

Java

Spring Boot

React

TypeScript

API-first design

Event-driven architecture

Cloud-native

PostgreSQL

Voice infrastructure

Distributed systems

English communication

Tools

Node.js

Docker

Kubernetes

Jenkins

Kafka

RabbitMQ

API gateway

Job description

Company Description

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization, and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989.
Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.

Job Description

We are looking for a Senior Full Stack Engineer to provide hands-on technical leadership across CX and contact center solutions. You will shape scalable solutions using Java, Spring Boot, React, TypeScript, API-first design, event-driven architecture, and cloud-native practices while remaining directly involved in critical engineering work. The role includes designing, developing voice infrastructure, digital-channel and messaging applications, and intelligent routing capabilities using technologies such as FreeSWITCH, Kamailio, and Twilio or comparable communications platforms. It suits a senior engineer who can move confidently between architecture, code, delivery risk, non-functional requirements, and client-facing technical discussions.

Responsibilities:

• Lead solution architecture and detailed technical design for scalable, secure, and highly available CX and contact center capabilities.
• Design and develop critical 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 that balance 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.

Qualifications

• 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, with the ability to guide frontend architecture and engineering practices.
• Practical familiarity with Node.js for services, integrations, tooling, or server-side frontend patterns.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.
• Hands-on experience with contact center or Customer Experience platforms and the operational concepts behind customer routing and engagement.
• Excellent English communication skills, including the ability to produce clear technical documentation and lead client-facing workshops.

Nice to have:

• Experience designing digital-channel and messaging applications across SMS, chat, WhatsApp, social messaging, email, or comparable channels.
• Experience designing routing engines for voice and digital interactions, including skills, priorities, queues, capacity, overflow, and fallback logic.
• Experience with Genesys, NICE, Five9, Amazon Connect, Cisco, Avaya, or comparable contact center platforms.
• Exposure to WFM processes and integrations involving forecasting, schedules, adherence, and employee data.
• Familiarity with Kafka or RabbitMQ, Kubernetes, Jenkins, observability platforms, API gateways, and security architecture.

Additional Information

We offer:

• Culture of Relentless Performance: join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth.
• Competitive Pay and Benefits: enjoy a comprehensive compensation and benefits package, including health insurance, language courses, and a relocation program.
• Growth Mindset: reap the benefits of a range of professional development opportunities, including certification programs, mentorship and talent investment programs, internal mobility and internship opportunities.
• Global Impact: collaborate on impactful projects for top global clients and shape the future of industries.
• Welcoming Multicultural Environment: be a part of a dynamic, global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events.
• Social Sustainability Values: join oursustainable business practicesfocused on five pillars, including IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality.

* Miratech is an equal opportunity employer and does not discriminate against any employee or applicant for employment on the basis of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status under applicable law.