Senior Backend C# Developer

CYNAPSE PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A tech company specializing in AI solutions is looking for an experienced Senior Backend C# Developer to join their Portal Team. In this full-time, permanent role based in Singapore, you'll design, implement, and maintain backend systems that power complex AI solutions. Your responsibilities include developing RESTful APIs, collaborating with a talented global team, and adhering to Agile methodologies. The position offers competitive salary, stock options, and a unique opportunity to work with cutting-edge technologies.

Benefits

Competitive base salary

Generous stock option package

Flexible working hours

Health insurance coverage

Professional development support

Qualifications

• Minimum 8+ years of experience as a Backend Developer with strong proficiency in C# and .NET Core.
• Solid understanding of ASP.NET for building enterprise-level web applications.
• Experience in designing and developing RESTful APIs and backend services.
• Strong understanding of relational database management systems (and SQL).
• Familiarity with cloud-based deployments and containerization technologies.

Responsibilities

• Design, develop, and maintain backend systems for enterprise-grade portal solutions.
• Collaborate with frontend developers, architects, and stakeholders.
• Lead by example in producing clean high-quality, reusable code.
• Develop RESTful APIs and integrate with third-party services.
• Perform unit testing and automated testing.
• Participate in technical discussions and contribute to system design reviews.
• Debug and optimize performance bottlenecks in production environments.

Skills

C# proficiency

.NET Core (version 8 preferred)

ASP.NET

RESTful APIs

Object-Oriented Programming (OOP)

SQL

Cloud-based deployments (Azure, AWS, GCP)

Containerization (Docker, Kubernetes)

Automated testing frameworks (xUnit, NUnit)

CI/CD pipelines

Job description

About Cynapse

Cynapse is a leading AI software company specializing in enterprise‑grade Video Intelligence Solutions Powered by Generative AI, tailored to meet the unique challenges of various industries. Our vertical‑specific solutions empower organizations to enhance safety, operational efficiency, and security in complex environments such as roads, seaports, airports, and cities. By combining advanced Vision AI with Generative AI, we continually push the boundaries of video analytics, delivering insights and automation that transform operations.

Led by a global team with a proven track record of scaling startups into market leaders, we foster innovation, collaboration, and diverse perspectives. Headquartered from US, Cynapse serves clients worldwide, redefining what's possible with video intelligence.

Job Description

We are looking for an experienced Senior Backend C# Developer to join our Portal Team, responsible for developing our enterprise‑grade portal solutions. This role involves designing, implementing, and maintaining robust backend systems that power complex AI solutions for enterprise and government. You will be working with the latest technologies, including .NET Core 8 and ASP.NET, in a collaborative, agile, and professionally challenging environment.

Responsibilities

• Design, develop, and maintain backend systems for our enterprise‑grade portal solutions.
• Take ownership and of design tasks and collaborate with frontend developers, architects, and other stakeholders to align backend solutions with overall system goals.
• Lead by example in producing clean high‑quality, reusable code following established best practices for scalability and security.
• Develop RESTful APIs and integrate with various third‑party services and databases.
• Perform unit testing and automated testing to ensure code quality and reliability.
• Actively participate in technical discussions and contribute to code, system design, and architecture reviews.
• Debug, troubleshoot, and optimize performance bottlenecks in production environments.
• Follow Agile/Kanban methodologies and collaborate effectively with the engineering team.

Qualifications

• Minimum 8+ years of experience as a Backend Developer with strong proficiency in C# and .NET Core (version 8 preferred).
• Solid understanding of ASP.NET for building enterprise‑level web applications.
• Experience in designing and developing RESTful APIs and backend services.
• Proficiency in Object‑Oriented Programming (OOP) principles and software design patterns.
• Strong understanding of relational database management systems (and SQL).
• Familiarity with cloud‑based deployments (Azure, AWS, or GCP) and containerization technologies like Docker or Kubernetes.
• Experience with automated testing frameworks (xUnit, NUnit, or equivalent) is a strong advantage.
• Knowledge of CI/CD pipelines and modern agile software development practices.
• Experience with any of the following would be considered a bonus:
• Microservices and message‑oriented architectures
• NoSQL / Document database systems
• gRPC, or Message brokers like RabbitMQ or Kafka.

Personal Competencies

• Innovative, motivated, and a quick learner with a passion for solving complex technical challenges.
• Strong communication and teamwork skills, with the ability to work effectively in small, agile teams.
• A high degree of ownership and attention to detail, with a commitment to delivering robust and high‑quality software solutions.
• Adaptable and open to learning new technologies and processes.

Benefits

• Competitive base salary and a generous stock option package.
• Unique opportunity to work with a talented global team on cutting‑edge technologies.
• Exciting work environment with flexible working hours.
• Health insurance coverage and professional development support.

Location

Due to the nature of the role, this position is open only to candidates based in Singapore.

Job Type

Full‑time, Permanent