Full-Stack Developer Co-Founder

Full-Stack Developer - Co-Founder Safeguarding Intelligence Platform (SIP) ` Part-Time Equity Only - No Salary (Salary + Benefits Post Funding) Remote Funding Round: Pre-seed £2M About SIP Tek480 is developing SIP is an early-stage technology - next-generation Safeguarding Intelligence Platform for organisations operating in regulated care and safeguarding environments. Our objective is straightforward: use modern software and AI technologies to help organisations improve safeguarding, operational accountability and risk management. We are currently building the platform toward MVP, pilot deployment and commercial launch. We are looking for a highly capable Co-Founder / Full-Stack Developer to join the founding team and take meaningful ownership of technical delivery. The Role This is a hands-on engineering and co-founder position. You will work directly with the founder and technical team to design, develop and improve SIP across mobile, backend and intelligent systems. You will contribute to: Product architectureMobile application developmentBackend systemsAPIsDatabasesAI-enabled functionalityPerformance-critical componentsSecurityTestingDeploymentTechnical documentationProduction readiness This is not a role for someone who wants to simply receive development tickets. We are looking for someone who identifies problems, proposes solutions and takes ownership of delivering them. Core Technology Stack Our technology stack includes: Frontend React NativeReactTypeScriptBackend Node.js / or LaravelTypeScriptAI & Data Services Python Performance-Critical Engineering C++ Infrastructure & Data PostgreSQLRedisDockerLinuxGit / GitHubCloud infrastructureYou do not need to be an expert in every technology listed, but you should be a strong full-stack engineer capable of working across several layers of a modern software platform. What We Are Looking For Ideally, you will have strong experience in several of the following: React NativeReactTypeScriptNode.js / LaravelPythonC++REST APIsPostgreSQLModern authentication and authorisationCloud infrastructureDockerLinuxAutomated testingGit-based development workflowsExperience building AI-enabled, real-time, security-sensitive or regulated-industry software would be particularly valuable. The Kind of Developer We Want Technical ability is important, but ownership matters just as much. We are looking for someone who: Takes responsibility for outcomesWorks independentlyCommunicates consistentlyKeeps agreed commitmentsTests their own work thoroughlyRaises blockers earlyDocuments important technical decisionsChallenges weak technical assumptionsThinks beyond the immediate taskCan move between frontend, backend and systems problemsUnderstands the difference between prototype code and production softwareWants to help build a company, not simply contribute code Co-Founder Expectations As a Co-Founder, you will have the opportunity to influence: Technical architectureProduct developmentEngineering standardsTechnology strategyDevelopment prioritiesTechnical hiringPilot deliveryFuture engineering team structure We expect Co-Founders to contribute proactively to the direction of the business rather than operate purely as contractors. Current Stage SIP is currently pre-funded and pre-revenue. The immediate focus is progressing the product toward: MVP → Demonstration → Pilot Deployments → Commercial Licensing Further details concerning SIP’s proprietary architecture, intellectual property and product methodology will only be disclosed to suitable candidates during the recruitment process and, where appropriate, following confidentiality arrangements. Commitment Part-time. We recognise that an equity-only opportunity means candidates are likely to maintain existing employment, consulting or other professional commitments. We therefore focus on consistent contribution rather than arbitrary working hours. However, reliability is essential. If you agree to meetings, development commitments or delivery milestones, we expect them to be treated professionally. Compensation Equity only at the current stage. There is currently no salary or guaranteed cash compensation. Equity will reflect factors including: ExperienceRoleResponsibilityContributionCommitmentDeliveryContinued involvementAny equity award will be formally documented and subject to appropriate vesting and founder/shareholder agreements. The intention is to build long-term value together, not distribute equity simply for joining the project. Why Join Us? SIP operates at the intersection of: AISoftware engineeringMobile technologySecurityRegTechSafeguardingRisk managementEnterprise technology It is an opportunity to help shape a technology company at founding stage and contribute directly to a product intended to address a serious real-world problem. For the right engineer, this is an opportunity to move beyond being another developer inside somebody else’s roadmap and become one of the people defining the roadmap. How to Apply Please apply on linkedin with your CV. Important: this is currently a part-time, equity-only Co-Founder opportunity. Please only apply if you understand and are comfortable with that structure.