Principal Software Engineer (all genders)

About us

Lucanet is the CFO Solution Platform built for modern finance & tax teams, offering an integrated suite of solutions to simplify and automate their most critical finance processes. More than 6,000 companies around the world rely on our easy-to-use, out-of-the-box SaaS platform - from consolidation and financial planning to tax compliance and reporting, ESG reporting, banking and cash management, and more. PE-backed and growing our footprint across global markets. Behind the platform is a global team of 850+ people who care about doing the work well. We challenge each other to push boundaries, move fast without cutting corners, and build solutions that genuinely change how finance & tax leaders operate. If you're looking for a place where your work has real reach - and where your growth is part of the deal - this is it.

The Role

We are looking for a Principal Backend Engineer to strengthen our calculation engine - a core part of our product responsible for handling complex data imports and modular computations. Your mission will be to optimize the performance of a graph traversal system that enables fast computation of dependencies across hundreds of millions of cells. This role focuses on executing CPU-bound operations efficiently and scaling the system to support high volumes of concurrent user requests. You’ll work on optimizing large-scale performance for both sparse and dense data structures, automating processes, and leading initiatives to improve efficiency and manage complexity. In this role, you’ll have the opportunity to reshape how people approach numerical thinking and analysis. Our innovative tool empowers users to perform calculations, visualize data, and share insights with ease. By combining the flexibility of spreadsheets with the power of programming, we’re making data analysis fast, collaborative, and accessible. You’ll work with modern technologies like the latest versions of Go, TypeScript, PostgreSQL, Redis, and more to collaboratively design and evolve the backend of our award-winning product. This position is ideal for a principal software engineer who is passionate about performance optimization, data analysis, and writing clean, maintainable code. We’re looking for someone with strong experience in Go, TypeScript, and lower-level languages such as C++ or Rust.

What you'll do

• Deeply Understand Our Product and Customers: Immerse yourself in every aspect of our product and grasp the nuanced needs of our customers to deliver exceptional solutions.
• Transform Requirements into Excellence: Convert functional requirements into clean, maintainable, and high-performance code that is well-tested and robust.
• Shape Our Engineering Future: Establish and refine processes that ensure the long-term success and scalability of our products.
• Lead and Innovate: Play a crucial role in defining the direction of our products, company, and culture, making a lasting impact on our journey forward.

What you bring to the table

• Strong background in Software Engineering focusing on backend development - You have a proven track record of building complex products.
• Backend Expertise: You have practical experience with our backend technologies—including Go, TypeScript (Node.js), Postgres, and Redis.
• Strong Understanding of Algorithms: You have a solid grasp of algorithms and data structures, particularly graph algorithms.
• Versatile Coding Skills: You write clean, maintainable, and performant code but can also move quickly and creatively when the situation calls for it.
• End-to-End Development: You're comfortable taking features from concept to production, handling everything from defining the technical specs to supporting features once live.

Perks at work

• LucaFlex: We acknowledge that every individual has different working styles and preferences. Our flexible working model allows you to plan your working hours and location according to your needs and professional responsibilities.
• Work from Abroad: Sometimes a change of scenery can boost creativity and productivity, you can work up to 90 workdays outside your home country with the support from our partner Workflex.
• Sabbatical: Take the time you need for personal pursuits, family time, travel, or any other activities that suit you with our sabbatical options.
• Team Spirit: We value teamwork and celebrate our achievements. That’s why we take many opportunities to get together, learn together, and cherish our successes together.
• Learning & Development: We encourage you to shape your own development with the support of dedicated time, resources, and budget provided by us.
• LucaNet Engage: Our feedback process is designed to support your personal and professional development in a targeted manner through regular dialogue.
• LucaNet Do Good: As a company we want to give back and support you in taking the time to do some good, individually or as a team, with paid volunteer time.
• Health & Wellbeing: Your overall wellbeing is important to us, which is why we offer tailored health and wellbeing programs, including company-wide initiatives, subsidies for sports activities, mental health support, and counselling through our external partners.
• Generous leave policy: We encourage you to take time off to relax, travel, and recharge.
• Compensation & Company Pension Plan: We are committed to equal pay and supporting you for your future by offering a company pension plan and/or pension allowances.
• JobRad: Find your dream bike, with financial support from us.
• Discounts: Enjoy a whole bunch of discounts from our external corporate benefits partner.

Powered by uniqueness

Everybody’s different here and we like it that way. At Lucanet, we embrace the unique qualities of every person. We are dedicated to creating an inclusive workplace where all employees can thrive and feel valued. Regardless of your gender identity, sexual orientation, personal expression, racial identity, ethnicity, religious belief, or disability statuses, you are welcome at Lucanet just as you are. Our recruitment process is solely based on qualifications, merit, and organizational needs, ensuring fairness and equal opportunities for all candidates. We recognize that every person brings a unique blend of skills and experiences. If you believe you will excel in this role, we want to hear from you – even if you do not check every box on the list. We only want to know why you are great for this role, so please avoid including your picture, age, and marital status in your CV.