Why This Job is Featured on The SaaS Jobs
This Fullstack Engineer role stands out in SaaS because it sits at the intersection of product delivery and measurable customer outcomes. The remit goes beyond shipping features to include improving interactive web experiences and maintaining established application areas—work that is central to subscription software where retention and usability compound over time. The mention of funnel optimisation and experimentation signals a product-led mindset rather than a purely project-driven engineering cadence.
For a SaaS career, the experience is broadly transferable: building on a modern C#/.NET and TypeScript stack, collaborating closely with QA, and working from technical specs through deployment mirrors how many SaaS organisations run end-to-end delivery. Exposure to A/B testing and data analysis also builds the muscle for iterative improvement—an increasingly common expectation for engineers operating in environments where telemetry and conversion metrics guide prioritisation.
The role appears best suited to an engineer who enjoys balancing new development with pragmatic maintenance, and who is comfortable making trade-offs between speed and quality. It will fit someone who prefers collaborative problem-solving, can work with a degree of autonomy when given goals rather than prescriptive solutions, and is motivated by user behaviour and measurable product impact.
The section above is editorial commentary from The SaaS Jobs, provided to help SaaS professionals understand the role in a broader industry context.
Job Description
Karbon is seeking a Mid-Level, Full Stack Software Engineer. This is an exciting time to join the team because we are expanding our organization. In this role, you will be working within an agile development team to design and build interactive web applications. They are responsible for technical specifications and developing and deploying software.
Key Responsibilities :
- Balance Speed and Quality—You adeptly balance the need for speed with a commitment to quality. You know when to accelerate to meet deadlines and when to focus on detail for perfect outcomes. You have the judgment to navigate these priorities effectively, maintaining a keen eye for both efficiency and excellence.
- Work effectively as part of a team - Software development is a team sport, where solo victories are rare. It thrives on your robust collaboration and dedication to supporting your colleagues. You will also be working closely with quality assurance team members to resolve issues raised by testing throughout the development cycle.
- Build and maintain - Your role involves developing innovative products and ensuring the continuous operation of existing ones of the Karbon software applications. You appreciate not only the allure of new technologies but also the importance of iterative improvements on established systems. Your commitment to pioneering and preservation is crucial. You will be responsible for optimizing user experiences, study user-centric data for meaning, experiment with acquisition channels and fine-tune conversion funnels.
- Autonomy—You are inherently curious, finding joy in learning and exploration. Faced with challenges and direction rather than predefined solutions, you engage fully and creatively with problems.
- Own your work—You take genuine pride in your creations, feeling a deep sense of responsibility for the products you develop and their impact on customers. This sense of ownership is paramount, and you share this commitment.
- Bring your passion and personality—Your creativity, curiosity, and authentic self make the team stronger. If you've worked in highly political environments, you'll find our culture, free from office politics and valuing openness and authenticity, a refreshing change.
Qualifications
- At least 2 years experience with C#, SQL Server, .Net (MVC, Web API, .Net Core a plus) and JavaScript/TypeScript
- Understanding of scalable computing systems, software architecture, data structures, and algorithms
- Experience in A/B testing and data analysis to optimize key metrics such as user acquisition and retention
- Excellent analytical skills and problem solving skills
- Excellent communication and collaboration skills to work in an international, multi-location team
- Has initiative and passion for all things web, and a willingness to go the extra mile
- Ability to work as part of a team and able to take pride and ownership in their work
- Passionate about users behavior, anticipating their needs and preferences
- Passionate about developing consumer facing software used globally and across industries
- A Bachelor’s degree in Computer Science, Mathematics, Statistics, Data Science, or equivalent experience is needed
Why Work at Karbon?
- Gain global experience across the USA, Australia, New Zealand, UK, Canada and the Philippines
- 4 weeks annual leave plus 5 extra "Karbon Days" off a year
- Flexible working environment
- Work with (and learn from) an experienced, high-performing team
- Be part of a fast-growing company that firmly believes in promoting high performers from within
- A collaborative, team-oriented culture that embraces diversity, invests in development, and provides consistent feedback
- Generous parental leave
