Ref62362b - Full Stack Developer For Web Application Profile

Company Description WNS Holdings Limited NYSE WNS is a leading Business Process Management BPM company We combine our deep industry knowledge with technology and analytics expertise to co-create innovative digital-led transformational solutions with clients across 10 industries We enable businesses in Travel Insurance Banking and Financial Services Manufacturing Retail and Consumer Packaged Goods Shipping and Logistics Healthcare and Utilities to re-imagine their digital future and transform their outcomes with operational excellence We deliver an entire spectrum of BPM services in finance and accounting procurement customer interaction services and human resources leveraging collaborative models that are tailored to address the unique business challenges of each client We co-create and execute the future vision of 400 clients with the help of our 44 000 employees Full Stack Developer For Web Application Profile Role Own the architecture delivery and operations of a large scale interactive web application with data driven UX multi cloud deployment serverless compute and embedded ML for forecasting and projections Lead end to end execution across front end APIs data cloud infrastructure CI CD reliability SLIs SLOs security and cost performance optimization Location and type Location Pune Vizag Nashik Employment Full time Experience 6-10 years total 2 years modern JavaScript TypeScript in production Key responsibilities Architecture at scale Design modular domain driven services and data models select patterns microservices vs modular monolith eventing and caching for throughput and low latency Front end Deliver interactive data driven features with modern JS TS and component frameworks enforce accessibility performance budgets and error resilience Back end Build secure APIs services in Python FastAPI Flask and or NET ASP NET Core implement idempotency retries and circuit breakers integrate third party systems Databases Design and operate SQL and NoSQL stores PostgreSQL MySQL SQL Server MongoDB CosmosDB DynamoDB manage partitioning indexing and query tuning integrate Microsoft Dataverse where applicable Cloud serverless Deploy on Azure AWS or GCP leverage Functions Lambda Cloud Functions API gateways queues streams and edge CDN codify infrastructure with Terraform Bicep CloudFormation CI CD Implement progressive delivery blue green canary automated testing quality gates and preview environments maintain low MTTR and short lead time Observability and reliability Define SLIs SLOs error budgets instrument logs metrics traces build dashboards alerts run incident response and postmortems with action tracking Security and compliance Enforce OAuth2 OIDC RBAC ABAC secure headers CSP secrets management dependency scanning and least privilege IAM contribute to threat modeling Cost performance Set budgets and KPIs tune cold starts concurrency caching storage tiers and egress perform capacity planning and load tests Leadership Mentor engineers drive coding standards and ADRs partner with product and data teams to sequence scalable delivery Forecasting and ML responsibilities Methods and model choice Select appropriate time series methods across baseline statistical naive seasonal naive ETS classical ARIMA Prophet and ML gradient boosting RNN Temporal CNN Transformers based on signal characteristics and data volume Pipelines and MLOps Build reproducible pipelines for data prep feature engineering training evaluation and deployment track experiments and version models data Inference and serving Expose real time and batch inference via secure APIs serverless endpoints with caching quotas and idempotency optimize for latency cost and scale Monitoring and drift Track metrics such as MAE MAPE sMAPE and pinball loss for quantiles detect dataset and concept drift establish retraining rollback policies and champion challenger evaluation Data quality and features Implement data checks missing data handling seasonal trend decomposition holiday event features change point annotations and window lag aggregation strategies Forecast UX and governance Surface prediction intervals provenance and simple explainability signals in UI maintain lineage for datasets features models and audit trails Minimum qualifications 6-10 years in production web systems 3 years owning cloud deployments at scale 2 years modern JavaScript TypeScript Deep proficiency in either Python or NET with working fluency in the other proven delivery of resilient APIs and integrations Hands on with Azure AWS or GCP including serverless managed data stores networking and IAM strong Infrastructure as Code skills Database mastery across SQL and NoSQL practical experience with Dataverse integration patterns Observability and reliability metrics logs traces SLI SLO definition incident response and postmortems Security OAuth2 OIDC JWT secure headers CSP secrets vaults dependency scanning and basic threat modeling Preferred qualifications Forecasting ML in production scikit learn Prophet XGBoost or cloud ML platforms SageMaker Azure ML Vertex AI experience with feature stores and model registries Event driven design with queues streams SNS SQS Event Grid Pub Sub Kafka and idempotency patterns Containers Kubernetes for non serverless workloads multi region active active or active passive designs Advanced delivery and resilience canary chaos testing game days policy as code and budget guardrails Data visualization for operations dashboards and accessibility best practices Tools and technologies illustrative Front end TypeScript React Vue Angular Vite Webpack CSS Tailwind Back end Python FastAPI Flask NET ASP NET Core REST gRPC asynchronous processing Data PostgreSQL MySQL SQL Server MongoDB CosmosDB DynamoDB Microsoft Dataverse Redis Memcached Cloud serverless Azure Functions AWS Lambda GCP Cloud Functions API management gateways queues events streams CDN edge CI CD and quality GitHub Actions Azure DevOps GitLab CI pytest xUnit Jest static analysis and policy gates Observability Azure Monitor App Insights CloudWatch X Ray Cloud Operations OpenTelemetry Datadog New Relic Security OAuth2 OIDC Entra ID Auth0 Cognito secret vaults SAST DAST SBOM and dependency scanning Qualifications Should be Graduate Effective communication for collaborating with diverse teams empathy to understand user needs and the ability to present design concepts Collaboration adaptability and diplomacy are essential for successful interaction with developers stakeholders and global teams