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SELLNIK

Technical Co-Founder / CTO

London
Posted about 21 hours ago
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Company Description

SELLNIK is an early stage start-up building an online auction platform for real estate agents to help get their listings under offers / sold.

Role Description

The Technical Co-Founder / CTO will lead SELLNIK’s overall technology strategy, architecture, and implementation in a full-time, on-site role. Day-to-day responsibilities include defining the technical roadmap, making key decisions on stack and infrastructure, and building the core product platform with an emphasis on scalability, security, and performance. The role involves hands-on software development, reviewing code, setting engineering standards, and establishing development processes and best practices. This person will collaborate closely with business and product stakeholders on feature prioritization, oversee integrations with third-party tools and services, and ensure robust data management and analytics capabilities. Additional responsibilities include forming and leading the engineering team, mentoring developers, managing technical partnerships, and contributing to fundraising and investor discussions as a technical representative of the company.

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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Qualifications

  • Candidates should possess strong Analytical Skills and Research abilities to inform product decisions, architecture choices, and data-driven experimentation.
  • Candidates should possess effective Communication skills, including the ability to translate complex technical topics for non-technical stakeholders and collaborate across teams.
  • Candidates should possess Sales and Marketing awareness to align technical solutions with go-to-market strategies, customer needs, and revenue goals.
  • Candidates should possess proven experience in software engineering, system architecture, and cloud infrastructure (e.g., AWS, Azure, or GCP).
  • Candidates should possess capability in building and scaling web applications or SaaS platforms, including security, reliability, and performance optimization.
  • Candidates should possess experience leading or mentoring engineering teams, establishing development processes, and working in startup or early-stage environments.
  • Candidates should possess familiarity with modern development practices (CI/CD, automated testing, DevOps) and version control tools.
  • A bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience, is beneficial.

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Location

London, United Kingdom

Compensation

Venture is pre-revenue, compensation to be equal equity split

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Skills

Analytical Skills
Research Abilities
Communication Skills
Sales Awareness
Marketing Awareness
Software Engineering
System Architecture
Cloud Infrastructure
Web Applications
SaaS Platforms
Security
Reliability
Performance Optimization
Team Leadership
Development Processes
CI/CD

Location

London, England, United Kingdom

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