Back-End API Developer

FL DATA; Singapore; On-site; USD 60,000 - 100,000; Full time

Job summary

An innovative firm is seeking a skilled Back-End API Developer to join their collaborative engineering team. You will play a crucial role in enhancing a SaaS platform that serves leading companies in high-compliance industries. Your expertise in C#, .NET Core, and SQL will help modernize their architecture and build scalable, reliable APIs. This position offers an opportunity to work on meaningful challenges that impact safety and compliance while thriving in a supportive culture that values your contributions and growth. If you are passionate about software development and eager to tackle real-world problems, this role is perfect for you.

Benefits

Excellent career development opportunities

Attractive salary & benefits

Qualifications

• Strong experience in C# and .NET Core for backend development.
• Proficient in writing SQL queries and working with databases.
• Experience in developing and maintaining RESTful APIs.

Responsibilities

• Collaborate with teams to design and implement new features.
• Lead the transformation of a monolithic application to a service-oriented architecture.
• Contribute to a clean, well-documented, and test-covered codebase.

Skills

C#

.NET Core

SQL

RESTful API Development

Version Control (Git)

Communication Skills

Job description

At Frontline Data Solutions, we empower some of the world’s leading chemical, oil & gas, and manufacturing companies with innovative web-based environmental, health, and safety software. Our tools drive efficiency and compliance, helping organizations thrive in complex, high-stakes industries.

As part of our backend engineering team, you’ll play a key role in designing and building scalable, testable APIs that power mission-critical features across our product suite. You’ll work closely with product managers and other developers to refactor a legacy monolith into a modern, service-oriented architecture.

We’re looking for a backend developer with strong experience in C#, .NET Core, and SQL—someone who thrives on solving technical challenges and writing clean, maintainable code. You should be comfortable working independently and collaboratively in a distributed team environment.

Our culture blends the agility and ownership of a startup with the professionalism and long-term vision of a company that’s been delivering results for over 26 years. Your contributions will directly impact the reliability, performance, and scalability of our platform.

The Role

What you'll do

As a Back-End API Developer at Frontline Data Solutions, you’ll play a vital role in the evolution of our SaaS platform, which supports some of the world’s most respected companies in high-compliance industries like chemical, oil & gas, and manufacturing.

• Build New Features: Collaborate with Product Managers, Frontend Developers, and fellow Backend Engineers to design and implement new features that enhance functionality, performance, and user experience across our core applications.
• Modernise Our Architecture: Help lead the transformation of our existing monolithic application into a modern, scalable, service-oriented architecture. You’ll have the opportunity to influence key architectural decisions and implement services that are robust, secure, and maintainable.
• Embrace Quality & Scale: Contribute to a codebase that’s clean, well-documented, and covered by tests. You’ll write scalable code with a focus on performance, fault-tolerance, and long-term maintainability.
• Solve Meaningful Problems: Work on real-world challenges in safety, compliance, and operations that have a measurable impact on our customers’ businesses and the well-being of their employees.
• Thrive in a Supportive Culture: Be part of a small, collaborative engineering team where your ideas are heard, your contributions matter, and your growth is supported.

Ideal Profile

Skills you'll need

To succeed in this role, you'll bring strong technical skills, a problem-solving mindset, and a passion for building great software:

• Proven Experience in C# and .NET Core: You’re comfortable building and maintaining APIs and backend services using modern .NET technologies.
• RESTful API Development: You have a solid understanding of API design principles and experience integrating and consuming APIs in real-world applications.
• Database Proficiency: You can write efficient SQL queries and work with relational databases to ensure data integrity and performance.
• Version Control Mastery: You’re confident with Git-based workflows and understand how to collaborate effectively through pull requests and code reviews.
• Bonus – Search Experience: Familiarity with Solr or other search technologies is a plus, but not required.
• Strong Communication & Collaboration: You’re comfortable discussing technical trade-offs, breaking down complex problems, and working across functions to deliver high-quality solutions.

What's on Offer?

• Excellent career development opportunities
• Work within a company with a solid track record of success
• Attractive salary & benefits