Were looking for a hands-on Technical Architect with deep expertise in Node.js, React.js, and Java, who can design, build, and optimize large-scale distributed systems. Youll architect and implement scalable microservices, define observability standards using Prometheus and Grafana, and ensure every component is performant, secure, and production-ready.

This role is for technologists who want to code, design, and shape engineering excellence - not just review it.

Key Responsibilities :

- Design and build enterprise-grade applications using Node.js (Nest.js/Express), React.js (Hooks/Next.js), and Java (Spring Boot).

- Architect microservices and event-driven systems optimized for scalability, resilience, and modularity.

- Define observability architecture - metrics, tracing, and dashboards - using Prometheus and Grafana (mandatory).

- Implement performance tuning, load testing, and proactive alerting to maintain high availability.

- Drive DevOps alignment, including CI/CD pipelines, Kubernetes deployments, and cloud-native design patterns.

- Create and maintain architecture artifacts - diagrams, decisions (ADR), and scalability roadmaps.

- Evaluate and adopt emerging technologies to improve developer productivity and system reliability.

- Mentor engineers on architecture patterns, design decisions, and clean code principles.

- Partner with product and business stakeholders to translate ideas into robust, production-grade solutions.

Required Skills & Experience :

- 12 - 15 years of experience in software engineering, with 5+ years in an architect-level role.

- Deep hands-on proficiency in Node.js, React.js, and Java/Spring Boot across front-end and backend stacks.

- Strong background in microservices, REST/gRPC APIs, and event-driven systems (Kafka, RabbitMQ, or Pulsar).

- Mandatory expertise in Prometheus and Grafana for observability, metrics instrumentation, and dashboard creation.

- Proven ability to design and optimize systems for high performance, scalability, and reliability.

- Solid experience with Kubernetes, Docker, and cloud platforms (AWS, GCP, or Azure).

- Strong grasp of SQL and NoSQL databases, caching layers, and distributed transaction design.

- Experience implementing CI/CD pipelines, infrastructure-as-code (Terraform/CloudFormation), and secure API gateways.

- Demonstrated knowledge of system security, fault-tolerance, and monitoring best practices.

- Exceptional communication and documentation skills; able to present architecture to diverse audiences.

Wed Be Super Excited If You Have :

- Familiarity with Open Telemetry, ELK/EFK, or Jaeger for extended observability stacks.

- Exposure to GraphQL, CQRS, or Domain-Driven Design (DDD).

- Experience with serverless functions and hybrid cloud architectures.

- Contributions to open-source, tech blogs, or internal architecture frameworks

Benefits :

At Calfus, we value our employees and offer a strong benefits package. This includes medical, group, and parental insurance, coupled with gratuity and provident fund options. We support employee wellness and provide birthday leave as a valued benefit.

Equal Opportunity Employer :

We believe diversity drives innovation. Calfus is committed to creating an inclusive workplace where everyone - regardless of background, identity, or experience - has the opportunity to thrive. We welcome all applicants!