Job: .NET Developer (Back-End)
Location: Lisbon
Salary: Competitive
Reporting to: Technical Lead
At Kallidus, we’re on a mission to help organisations build people-first cultures through learning, performance, and talent solutions. Our award-winning suite empowers organisations to attract, develop, and retain the best talent — combining data, learning, and behavioural insights into one seamless platform. The goal to link Employee performance to business outcomes.
We are a technology company, not just a company that "does technology". Our software is used by millions of people every day. We build it ourselves, we own it entirely, and the people who lead that work have real influence over how it evolves. Come build, grow and make a difference!
As part of our continued expansion, Kallidus is creating a new Portugal Hub to execute our new AI initiative - Kallidus Intelligence K.I . We invite you to be part of that journey: 🚀
The Role:
We are looking for a .NET Developer (Back-End) to build software using languages and technologies of the .NET framework. You will join one of our Agile development teams, reporting to the Team Lead, to work on our existing product suite, configure existing systems, and provide user support.
In this role, you should be able to write functional code with a sharp eye for spotting defects. You should be a team player and excellent communicator. If you are also passionate about the .NET framework and software design/architecture, we’d like to meet you!
Your goal will be to work with internal teams to design, develop and maintain software.
Key Responsibilities:
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Participate in requirements analysis
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Collaborate with internal teams to produce software design and architecture
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Write clean, scalable code using .NET programming languages
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Applies AI tools independently to improve productivity, code quality, and documentation while critically reviewing results
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Adhere to systems security engineering principles
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Test and deploy applications and systems
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Revise, update, refactor and debug code
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Improve existing software
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Develop documentation throughout the software development life cycle (SDLC)
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Serve as an expert on applications and provide technical support
Required Skills, Experience and Behaviours
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Proven experience as a .NET Developer or Application Developer
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Familiarity with the ASP.NET framework, SQL Server, and design/architectural patterns
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Knowledge of .NET, C# and HTML5/CSS3
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Familiarity with architecture styles/APIs (REST, RPC)
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Understanding of Agile methodologies
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Excellent troubleshooting and communication skills
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Attention to detail
- An academic qualification in Computer Science, Engineering, or a related field
- English (B2+)
Desirable
- Exposure to learning, HR, or workforce analytics domains
- Prior experience in a scale-up or SaaS product company
What we offer:
🌴27 days of annual leave
🏥Private health insurance
💸Annual bonus opportunity
💻Full tech setup
🍽️Meal allowance
🎈Birthday Off
🙋Volunteering Day
📈Support for your ongoing growth & development
🫂Enhanced Family Leave
🕖Flexible, hybrid approach to work
🎉Annual Company party
Hiring Process:
- Initial Chat with Hiring Manager
- Psychometric tests
- Technical interview
Equal Opportunities
Our people are the heart of our success, and diversity is what drives that. Kallidus positively encourages applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, gender reassignment, region or belief, marital status, pregnancy or maternity.
Diversity brings innovation and creativity through different views, backgrounds, and opinions; as a people-first organisation, it’s crucial that our teams reflect global diversity.
Kallidus is a proud member of the Disability Confident Employer scheme. We work hard to build an explicitly inclusive space where everybody belongs. Kallidus is a supportive, caring, and enjoyable working environment for all our people, and we are committed to furthering the diversity of our teams.