CTO & Co-founder (Mervensa)

Red Sky; Województwo pomorskie; Hybrid; PLN 223,000 - 268,000; Full time

Benefits offered by this job

Equity 5-10%

Hybrid work model

Startup studio support

Job summary

Red Sky is recruiting for a genuine co-founder role to own the company's technology strategy and product delivery for Mervensa, an AI SaaS startup. You will work closely with the Founder & CEO, hands-on coding in early stages, and gradually build and lead the engineering team while shaping platform architecture and product direction.

The role is hybrid (Tricity or Warsaw), with frequent office days and travel between locations, and requires full-time commitment while contributing to strategic

Qualifications

• Experience as a founding engineer or taking a product from 0 to 1.
• Strong B2B SaaS experience.
• Hands-on AI implementation experience or AI-native approach.
• Strong full-stack software engineering background.
• Excellent software architecture and cloud engineering experience.
• Experience leading engineering teams.
• Strong commercial awareness and product instincts.
• Fluent English (spoken and written).
• Willingness to commit full-time.

Responsibilities

• Owning the technology vision and technical roadmap.
• Leading software architecture and engineering decisions.
• Actively developing product features and contributing production-quality code.
• Building secure, scalable, enterprise-grade multi-tenant SaaS architecture.
• Collaborating with the Founder & CEO on product strategy and priorities.
• Recruiting, mentoring and leading the engineering team.
• Establishing engineering standards, testing, CI/CD and processes.
• Ensuring platform security, reliability and operations.
• Evaluating emerging AI technologies and applying them where valuable.
• Fostering a high-performance engineering culture.

Skills

Founding engineer

B2B SaaS

Hands-on AI

Full-stack development

Cloud engineering

Team leadership

English fluency

Education

Bachelor's degree

Tools

AI IDEs

Job description

Location: Tricity / Warsaw, Poland (Hybrid)

Stage: Early-stage startup

Product: AI SaaS platform

About Mervensa

Mervensa is building an AI SaaS platform that helps enterprise sales teams win more complex deals through AI-powered deal intelligence. Our vision is to create the world's leading AI platform for enterprise sales teams — helping organisations improve every stage of the complex sales process through intelligent insights.

The product already has a substantial V1 MVP and a clear commercial vision. We are now focused on launching our first commercial product and building a world-class engineering team, alongside an experienced venture capital investor supporting the founding team and the company's growth.

About the role

This is a genuine founder/co-founder opportunity rather than a conventional CTO or freelance/subcontracting engagement. Working alongside the Founder & CEO, you will own the company's technology strategy, architecture, engineering and product delivery.

This is a highly hands‑on role. In the early stages, you will write production code, review code, make architectural decisions and help deliver new functionality every week alongside the founder and a full‑time developer. As the business grows, you will recruit, mentor and lead the engineering team while remaining closely involved in technical direction and product innovation.

We're looking for someone who enjoys building products, solving difficult technical problems, and creating exceptional software.

This is a full‑time commitment . Candidates should not be operating another business in a similar operational capacity, though limited outside activities (e.g. weekend work, teaching, writing, passive shareholding) that don't affect the role may be acceptable.

This is a hybrid role, based in Tricity or Warsaw , with several days per week working from an office and flexibility to travel between locations. Close, day-to-day collaboration with the founding team is expected to accelerate product development, decision‑making, and company building.

Your responsibilities

• Owning the technology vision and technical roadmap,
• Leading software architecture and engineering decisions,
• Actively developing product features and contributing production‑quality code,
• Building secure, scalable, enterprise‑grade multi‑tenant SaaS architecture,
• Working closely with the Founder & CEO to shape product strategy and priorities,
• Recruiting, mentoring and leading the engineering team,
• Establishing engineering standards, testing, CI/CD and development processes,
• Ensuring platform security, reliability and operational excellence,
• Evaluating emerging AI technologies and incorporating them where they create customer value,
• Helping build a high‑performance engineering culture.

Who we are looking for (must-have)

• Experience as a founding engineer or taking a product from 0 to 1,
• Strong B2B SaaS experience,
• Hands‑on AI implementation experience or an AI‑native way of working,
• Strong full‑stack software engineering background,
• Excellent software architecture and cloud engineering experience,
• Experience leading engineering teams,
• Strong commercial awareness and product instincts,
• Fluent spoken and written English,
• Ability and willingness to commit full‑time.

Nice to have

• Prior startup or scale‑up experience,
• Genuine founder ambitions and comfort working in ambiguity,
• Experience using AI‑enabled IDEs,
• Willingness to be based in, or relocate to, the Tricity area,
• Bachelor's degree.

What we offer

• A genuine co‑founder role with real influence over the company's technology strategy and direction,
• The opportunity to help build a category‑leading AI company from the ground up,
• Remuneration: approximately PLN 20 000 monthly net B2B + VAT,
• Equity in the range of 5 - 10%, depending on the candidate’s qualifications,
• Support from an experienced startup studio and capital group,
• Access to industry experts and startup‑building know‑how,
• Fast decision‑making and a high‑impact environment.

Red Sky is conducting this recruitment process. The cooperation concerns a Mervensa start-up.

Recruitment process

• Interview with HR (~45 min)
• NDA
• Interview with CEO (~60 min, under NDA) — product, platform, business model, strategy and role
• Technical assessment (~50-60 min)
• Interview with the Investor (~45 min)
• Workshop (~3 hours, ideally in person)
• Offer (typically within ~1 day of the workshop)