Jobs at Xtremax

Design, deploy, and maintain AWS and hybrid infrastructure across development, staging, and production. Administer cloud, virtualization, container, monitoring, security, and Infrastructure as Code platforms. Improve reliability through SRE practices, automation, observability, disaster recovery, and resilience testing. Troubleshoot platform issues with development teams while maintaining documentation and runbooks.

Design and deploy production-ready agentic AI systems for public-sector fraud detection. Build LLM workflows for emerging risk identification and detection logic, integrate AWS and enterprise data platforms, and develop tested Python applications and APIs. Establish evaluation, monitoring, CI/CD, observability, governance, security, human oversight, and responsible-AI safeguards while collaborating with data scientists, analysts, engineers, and business stakeholders.

Build and operate reliable production ML and AI systems across AWS and Databricks. Responsibilities include developing MLOps components, productionizing models, creating data and feature pipelines, optimizing Spark and SQL workloads, automating CI/CD and retraining, implementing governance and security controls, and establishing monitoring, evaluation, rollback, and incident-response practices. The role also supports generative AI, recommendation, and search workloads while improving reusable engineering patterns and transferring knowledge to internal teams.

Design, build, and operate production-grade batch and streaming data pipelines across AWS and Databricks. Develop lakehouse architectures, data models, quality controls, orchestration, lineage, monitoring, and security practices. Optimize Spark and SQL workloads, establish engineering standards, review designs and code, mentor engineers, and collaborate with data owners, analysts, data scientists, architects, and governance stakeholders. Support reliable, well-governed data products for analytics, reporting, and machine learning.

Develop and validate fraud-risk models for public training subsidies. Responsibilities include recalibrating thresholds, engineering features, evaluating model performance, monitoring data and concept drift, investigating anomalies, assessing emerging fraud schemes, and documenting analytical methods. The role requires collaboration with technical and policy stakeholders, clear communication of trade-offs, and reproducible Python and SQL workflows. Preferred experience includes imbalanced data, delayed labels, dashboards, MLOps, cloud data platforms, graph analytics, and public-sector datasets.

Manages the full lifecycle of AWS cloud platforms across engineering, operations, and security. Responsibilities include infrastructure provisioning with IaC, CI/CD, Linux and Windows administration, networking, monitoring, patching, backup and disaster recovery, incident and change management, security controls, compliance, vulnerability remediation, and L2/L3 support. The role also supports automation, workload migrations, audits, and adherence to Singapore Government cloud and cybersecurity requirements.

Partners with customers and stakeholders to define business and technical requirements, facilitate discovery workshops, and shape cloud-native digital solutions. Translates business needs into user stories, functional specifications, process flows, and acceptance criteria while collaborating with engineers, architects, and product teams. Supports Agile delivery, solution demonstrations, proof-of-concepts, pre-sales discussions, testing, UAT, and production rollouts. Provides technical and business advisory throughout project delivery.

Business Analyst supporting Singapore Government IT projects by gathering and documenting requirements, analyzing processes, creating wireframes, coordinating Agile delivery, and supporting User Acceptance Testing. The role bridges government stakeholders, project managers, developers, and QA teams to deliver effective digital solutions. Responsibilities include defining user stories and acceptance criteria, identifying process improvements, assessing change impacts, and monitoring success metrics.

Design, implement, support, and improve large-scale enterprise, data center, WAN, wireless, and hybrid cloud networks. Responsibilities include routing and switching, Azure networking and security, high availability, disaster recovery, troubleshooting, incident management, architecture governance, technical assurance, and consultancy across concurrent initiatives.

Redesigns business and IT operational processes to reduce manual effort, delays, risks, and handoffs. Implements AI, workflow, infrastructure automation, and system integrations using platforms such as ServiceNow, Power Automate, Ansible, and Terraform. Develops measurable outcomes, SOPs, documentation, dashboards, and knowledge resources while training operational teams to sustain and improve implemented solutions.

Administer enterprise Unix/Linux servers and backup infrastructure across on-premises and cloud environments. Responsibilities include provisioning, hardening, patching, monitoring, troubleshooting, backup and recovery management, disaster recovery testing, automation with shell scripts and Ansible, documentation, and incident support.

Leads end-to-end delivery of complex public-sector application modernization projects. Manages plans, scope, schedules, risks, dependencies, stakeholders, vendors, testing, releases, and operational readiness. Translates business requirements into technical delivery plans, performs application and technical impact analysis, understands architecture and code, and coordinates engineering, cloud, DevOps, security, and quality teams across Agile or hybrid SDLC environments.

As a Full Stack Software Developer, you will develop modern, responsive web applications, build APIs, manage databases, and ensure code quality while collaborating in Agile teams.

The Cloud Operations Manager will oversee service delivery and operational excellence for cloud services, manage operations across platforms, and foster client relationships to enhance satisfaction and performance.

Provide desktop and network support: patching, AD/Entra ID management, hardware/software installation, troubleshoot network and hardware issues, maintain security, manage firewalls/routers/access points, produce IT status reports, and support facilities and ad hoc IT duties.

The Senior Account Manager will drive sales and manage client accounts in Cloud Managed Services, focusing on enterprise and government clients. Responsibilities include developing growth strategies, engaging clients, and supporting service delivery in cloud and infrastructure operations.

The Presales Solution Architect collaborates with clients to design and implement cloud-based solutions, leveraging modern methodologies and automation tools to meet business needs.

Build and maintain full-stack software and production AI applications for government product teams. Develop LLM workflows, evaluation pipelines, observability, guardrails, testing, and deployment processes. Collaborate with customers on discovery, demos, proofs of concept, architecture, onboarding, integrations, support, and troubleshooting. Maintain technical documentation and improve accessibility, including remediating WCAG issues and learning assistive technologies.

Design, implement, and maintain hybrid AWS and on-prem infrastructure using IaC (Ansible, Terraform). Manage Linux systems, Elasticsearch, container platforms (Docker, Kubernetes/EKS), and monitoring (CloudWatch, Prometheus, Grafana, Zabbix). Build CI/CD pipelines, troubleshoot network/system/application issues, and plan/execute on-premises-to-cloud migrations while collaborating with cross-functional teams to ensure high availability and operational efficiency.

Lead modernization of enterprise .NET applications into cloud-native microservices on Azure. Define architecture, build a pilot reference implementation, implement CI/CD and secure coding practices, conduct reviews, mentor engineers, and drive adoption of scalable, production-grade solutions across multiple applications.