Lead Software Engineer

Job Requirements
At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.
Key Responsibilities
Backend Engineering & Cloud
Deliver production-grade Java Spring Boot services — including Spring Cloud, Spring Security, and WebFlux.
Design and optimise data access layers across PostgreSQL, MongoDB, and Cassandra for scale and resilience.
Implement Kubernetes-based deployment topologies (Helm, Kustomize, service mesh via Istio/Linkerd).
Architect CI/CD pipelines using GitHub Actions, Cloud Build, Azure DevOps, ArgoCD, or Tekton.
Oversee observability stacks: OpenTelemetry, Prometheus, Grafana, Cloud Monitoring / Azure Monitor.
Frontend & Integration
Collaborate with frontend teams on React/HTML5 BFF (Backend-for-Frontend) patterns and micro-frontend integrations.
Define CDN, SSR, and caching strategies to meet performance budgets from backend perspective.
Architect secure integration with third-party SaaS and internal platforms via event streaming (Kafka, Pub/Sub).
TECHNICAL SKILLS & COMPETENCIES:Cloud Platforms
GCP (GKE, Cloud Run, BigQuery, Pub/Sub, Spanner, Firestore, Cloud CDN, VPC, Cloud Armor)
Azure (AKS, Azure Functions, Cosmos DB, Service Bus, Event Grid, APIM, Azure DevOps, Azure AD B2C)
Backend
Java 17/21
Spring Boot 3.x
Spring Cloud
Spring Security
Spring WebFlux
Hibernate / JPA
Maven / Gradle
JUnit 5 / Mockito
Frontend
React 18 / Next.js
HTML5
TypeScript
BFF Pattern
REST & GraphQL consumption
Performance optimisation
Containers & Infra
Kubernetes (GKE / AKS)
Docker
Helm
Kustomize
Istio
ArgoCD
Terraform
Pulumi
Ansible
Databases
PostgreSQL (partitioning, indexing, read replicas)
MongoDB (sharding, aggregation pipelines, Atlas)
Cassandra (data modelling, compaction, multi-DC)
Redis
Elasticsearch
Messaging & Streaming
Apache Kafka
GCP Pub/Sub
Azure Service Bus
RabbitMQ
Event-driven architecture
CQRS / Event Sourcing
Security
OAuth 2.0 / OIDC
JWT
Zero Trust
HashiCorp Vault
OWASP Top 10
Cloud IAM
mTLS / service-to-service auth
Architecture Patterns
Microservices
DDD
Event-Driven
CQRS
Saga Pattern
Strangler Fig
Sidecar
API Gateway
Service Mesh
Required Qualifications
7-10 years of hands-on software engineering experience.
Proven delivery of large-scale cloud-native platforms on GCP and/or Azure in production at 10M+ users.
Expert-level proficiency in Java (11+) and the Spring ecosystem (Boot, Cloud, Security, WebFlux).
Extensive experience with containerisation (Docker) and Kubernetes orchestration (GKE / AKS).
Deep knowledge of relational and NoSQL databases: PostgreSQL, MongoDB, and Apache Cassandra.
Strong command of microservices design, REST/gRPC APIs, and asynchronous messaging patterns.
Solid experience with Infrastructure-as-Code (Terraform / Pulumi) and GitOps workflows.
Hands-on exposure to React/HTML5 and BFF architecture patterns.
Track record of leading architecture reviews, engineering governance, and cross-functional delivery.
Bachelor's or Master's degree in Computer Science, Engineering, or equivalent practical experience.
Preferred Qualifications
Experience with AI/ML platform integration (Vertex AI, Azure ML, LLM orchestration).
Familiarity with FinOps tooling and cloud cost optimisation frameworks.
Open-source contributions or published technical writing on distributed systems topics.
Experience in regulated industries (BFSI, Telecom, HealthTech) with compliance posture management.
Exposure to multi-cloud or hybrid-cloud landing zone designs.
We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.
We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.

Work arrangement
No