Lead Software Engineer

About Splint Invest

Splint Invest is a Swiss fintech platform that makes investing in alternative assets like art, wine, luxury cars, and collectibles accessible to everyone - starting from just CHF 50. We are a fast-growing startup with a passionate team, working at the intersection of finance, technology, and culture.

We are looking for a Lead Software Engineer who will lead our engineering strategy, ensure technical excellence, and scale our platform to meet growing demand. You will be responsible for building a high-performing tech team, driving architectural decisions, and delivering reliable, secure, and scalable features in close partnership with the Head of Product.

Role Purpose

You will be responsible for "building the right way" - ensuring our platform is technically robust, scalable, and secure while enabling rapid product delivery. You will lead the full development lifecycle, manage the engineering team, and collaborate closely with product, design, and leadership to deliver impactful features that delight users and drive business growth.

Key Responsibilities

Technology Leadership & Strategy

• Define and own the technical vision, architecture, and long-term technology roadmap.
• Lead and mentor frontend and backend developers, fostering a culture of excellence
• Oversee end-to-end development cycles, release management, and deployments
• Align technology decisions with business strategy and product goals.
• Evaluate and introduce new tools, frameworks, and best practices to improve productivity and maintainability.

Team Management & Culture

• Lead, mentor, and grow a team of frontend and backend developers.
• Foster a culture of code quality, technical excellence, and continuous learning.
• Ensure effective collaboration between product and engineering.

Delivery & Execution

• Oversee end-to-end development cycles, ensuring high-quality, on-time delivery.
• Own release management and deployment processes.
• Ensure feature requirements are fully understood and implemented to spec.

Technical Excellence & Operations

• Maintain and evolve the platform architecture for scalability and performance.
• Ensure security, compliance, and data protection best practices.
• Oversee code reviews, testing practices, and quality assurance processes.

System Operations & Reliability

• Take ownership of the day-to-day operations of all technology systems, ensuring high availability, resilience, and scalability.
• ⁠Oversee monitoring, incident management, and disaster recovery processes to minimize downtime and service disruption.
• ⁠Continuously optimize infrastructure performance and cost efficiency in alignment with business growth.

Collaboration with Product

• Work closely with the Head of Product to ensure features are feasible, well-scoped, and technically sound.
• Participate in roadmap planning, providing technical input on timelines and complexity.
• Support A/B testing setup, monitoring, and iteration from the tech side.

KPIs for Success

• Platform reliability: Uptime, error rates, and performance metrics (e.g., response time, load times).
• Delivery predictability: % of features delivered on time and to specification.
• Code quality: Reduced bug rates post-release, strong test coverage.
• Team performance: Developer satisfaction, retention, and growth.
• Security & compliance: Zero critical vulnerabilities in production.

Must-Haves:

• Proven experience as Lead Software Engineer or CTO in a fast-growing tech company (fintech or SaaS preferred).
• Experience in tech stack: React Native (cross-platform app development), Django (Python), Celery, Kubernetes, Redis, AWS, PostgreSQL
• Strong background in both frontend and backend development, with emphasis on mobile applications and expertise in modern frameworks and architectures.
• Experience scaling platforms with high reliability and security requirements.
• Solid understanding of DevOps, CI/CD, and cloud infrastructure.
• Track record of building and leading high-performing tech teams.
• Strong communication and leadership skills, able to align tech and business priorities.

Nice-to-Haves:

• Experience with B2C products / B2C SaaS
• Experience in investment platforms, financial services, or alternative assets.
• Familiarity with regulatory compliance in fintech.
• Previous startup experience.

Why join us:

• Be part of a Top 100 Swiss Startup with big ambitions.
• Shape the future of a platform changing how people invest.
• Work with a passionate, international team.
• Competitive package and room to grow.

Compensation: CHF 140'000 base salary plus the opportunity to participate in our company's growth through an equity stake.

Hybrid Work Model: We follow a hybrid work model with one mandatory office day per week in Zurich, typically on Tuesdays.