Technical Lead (.NET / C# / Java)

re-zoo-me; Singapore; Hybrid; SGD 150,000 - 190,000; Full time

Job summary

re-zoo-me is seeking a hands-on Technical Lead to steer design, development, and support of enterprise apps handling high-volume data. You will mentor teams, drive architecture decisions, and ensure scalable, secure, and high-quality solutions.

Java (JDK 17+) exposure is advantageous. The role emphasizes leadership, strong C#/.NET skills, and experience with WinForms/WPF/ASP.NET, SQL Server, and CI/CD in an Agile environment.

Qualifications

• 5+ years in software development with a technical lead or senior developer role.

Responsibilities

• Lead, mentor, and guide software engineering teams to deliver high-quality solutions.
• Design, develop, and maintain enterprise applications using C#/.NET technologies.
• Drive architectural decisions, coding standards, and secure development practices.
• Conduct code reviews and provide technical guidance to improve quality.
• Collaborate with Architects, Product Owners, QA, Infrastructure, and business stakeholders.
• Design scalable applications capable of processing high-volume transactional data.
• Participate in sprint planning, estimation, and risk assessments.
• Support deployments, release management, and post-release activities.
• Provide L3 production support, troubleshoot complex issues, perform root-cause analysis, and implement preventive measures.
• Drive continuous improvements in system stability, performance, and operational excellence.

Skills

C# / .NET

WinForms / WPF / ASP.NET

MS SQL Server

High-volume data processing

Leadership & mentoring

CI / CD & Agile

Debugging & production support

Stakeholder management

Communication

Tools

Git

Job description

Job Summary

We are seeking for a hands-on Technical Lead with strong expertise in C#/.NET to lead the design, development, and support of enterprise applications handling high-volume transactional data. The ideal candidate will provide technical leadership, mentor development teams, drive architecture decisions, and actively contribute to software development while ensuring scalable, secure, and high-quality solutions. Experience with Java (JDK 17+) is a strong advantage.

Mandatory Skill-set

• 5+ years of software development experience with experience in a technical lead or senior developer role;
• Strong hands-on expertise in C#/.NET Framework (3.5 and above);
• Experience developing WinForms, WPF, and ASP.NET applications;
• Strong knowledge of Microsoft SQL Server, including database design, query optimization, and performance tuning;
• Experience building and supporting applications processing large volumes of transactional data;
• Strong troubleshooting, debugging, and production support experience;
• Experience with source control, CI/CD pipelines, and Agile methodologies;
• Excellent leadership, communication, and stakeholder management skills.

Desired Skill-set

• Experience with Java (JDK 17+);
• Knowledge of SSRS and SSIS;
• Exposure to modern frontend technologies such as Angular, React, or Vue.js;
• Experience with enterprise architecture, system integration, and high-availability applications;
• Prior experience mentoring or leading enterprise environments is an advantage.

Responsibilities

• Lead, mentor, and guide software engineering teams to deliver high-quality solutions;
• Design, develop, and maintain enterprise applications using C#/.NET technologies;
• Drive architectural decisions and establish coding standards, best practices, and secure development principles;
• Conduct code reviews and provide technical guidance to improve code quality and maintainability;
• Collaborate with Architects, Product Owners, QA, Infrastructure, and business stakeholders;
• Design scalable applications capable of processing high-volume transactional data;
• Participate in sprint planning, effort estimation, and technical risk assessments;
• Support application deployments, release management, and post-release activities;
• Provide L3 production support, troubleshoot complex issues, perform root cause analysis, and implement preventive measures;
• Drive continuous improvements in system stability, performance, and operational excellence.

EA Licence No. 07C5639