Heavnn

Full-stack Engineer

• Build and evolve the product
• Design, build, and maintain a production-grade software platform
• Translate functional and regulatory requirements into clean, maintainable systems
• Work closely with tax, legal, and compliance experts to implement domain logic correctly
• Improve existing systems through refactoring, simplification, and performance optimization
• Build with scalability, reliability, and long-term evolution in mind
• Improve and extend existing AI features, staying up to date with advances in AI and modern engineering practices
• Ensure quality, security, and reliability
• Apply solid engineering practices around testing, monitoring, and deployments
• Contribute to data security and system reliability
• Make pragmatic technical decisions balancing speed, quality, and maintainability

Founding Software Engineer

Business Development Rep

• You'll own and operate Business Development–driven revenue initiatives , and contribute to the design and execution of Heavnn’s broader commercial motion.
• Your responsibilities will include: Commercial growth initiatives Initiating and developing commercial opportunities Engaging with prospects and partners throughout the sales cycle Contributing to deal structuring and conversion Partnerships and external relationships Identifying and developing strategic commercial relationships Activating and managing partnerships with a revenue focus Representing Heavnn within relevant ecosystems Commercial execution & operations Running and improving BD-led commercial processes Tracking performance and learning from outcomes Participating in the structuring of tools, workflows, and reporting.

Business Developer

• Being the 'tax brain'.
• Acting as the internal referent for global mobility topics with a strong focus on tax and compliance.
• Analyzing tax, legal, and social security frameworks across the jurisdictions covered by Heavnn.
• Structuring and maintaining country-specific regulatory knowledge in a scalable and usable way.
• Designing and validating tax and setup scenarios.
• Supporting premium clients through expert guidance when required.
• Providing subject-matter support to business, sales, and marketing initiatives.
• Contributing to the creation of technical content and internal documentation.
• Building the tax & legal function at Heavnn, creating awareness, and animating your topic internally.
• Owning the regulatory dimension of the product in coordination with business and technical stakeholders.
• Translating tax and compliance requirements into clear product logic and functional specifications.
• Ensuring consistency, accuracy, and reliability of product outputs.
• Collaborating with external experts and partners to validate and enrich the product.
• Continuously identifying opportunities to improve and evolve the product.

Tax & Compliance Operations Specialist – Product

Marketing

• Tell and shape Heavnn’s story
• Define and evolve Heavnn’s narrative, positioning, and tone
• Translate a complex product into clear, compelling messages
• Express that story through content, social media, community, partnerships, and experiments
• Collect feedback and signals from audience and customers
• Observe how messages perform across channels
• Experiment, learn, and refine the approach
• Build and scale marketing
• Contribute to defining marketing priorities and strategy
• Run and analyze experiments across different traction channels
• Help structure marketing processes and tools over time

Founding Software Engineer

Business Developer

Tax & Compliance Operations Specialist – Product

Marketing Operator