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GT, founded in 2019, connects top talent with high-growth companies. On behalf of Rio ESG, a British sustainability-focused software platform, GT is seeking a Lead Full-stack Engineer. Rio ESG helps organizations track sustainability data, report on ESG, and manage policies for clients like NHS Scotland. Their product, Rio, is an intelligent sustainability management system with an AI engine. The Lead Developer will guide the tech team, own technical decisions, and lead feature delivery across a modern stack, scaling the platform's reporting, automation, and intelligence tools.

Senior Back-End Developer (Node.js)

<h1 class="text-3xl md:text-4xl font-extrabold mt-6 mb-4 text-gray-900 tracking-tight">GT was founded in 2019 by a former Apple, Nest, and Google executive. GT’s mission is to connect the world’s best talent with product careers offered by high-growth companies in the UK, USA, Canada, Germany, and the Netherlands.</h1><p class="my-4 text-gray-700 leading-relaxed">On behalf of <strong>Rio ESG</strong>, GT is looking for a <strong>Full-stack Engineer</strong> passionate about <strong>sustainability 🌱 and AI 💻</strong></p><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">About the Company</h2><p class="my-4 text-gray-700 leading-relaxed"><a href="https://rio.ai/how-it-works" target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">Rio ESG</a> is a British <strong>sustainability-focused software platform</strong> that combines software, consultancy, education tools, and other features to improve their clients’ sustainability performance.</p><p class="my-4 text-gray-700 leading-relaxed">Since 2018, Rio ESG has been helping various industries including investment managers, corporates, financial services, and public sector organizations track sustainability data, report on ESG, manage policies, and learn how to become more sustainable.</p><p class="my-4 text-gray-700 leading-relaxed">Most of their clients are medium and large organizations in the UK, including <strong>NHS Scotland, Ministry of Justice, JD Sports & big international investment banks like Sanne Group.</strong></p><p class="my-4 text-gray-700 leading-relaxed">🎯 <a href="https://rio.ai/our-purpose" target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200"><strong>Rio's Mission:</strong></a> <strong>"</strong>We believe <strong>sustainability is for everyone</strong>, and we’re on a mission to make it more accessible."</p><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">About the Product</h2><p class="my-4 text-gray-700 leading-relaxed"><strong>Rio is an intelligent sustainability management system</strong> consisting of three main parts: ESG Data Tracking & Reporting, Governance & Education. It also includes <strong>Rio AI</strong> - a proprietary AI engine that utilizes patented methodology to map expert knowledge, employing a transparent model to analyze sustainability data and deliver tailored recommendations to users through a user-friendly chatbot interface.</p><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">About the Role</h2><p class="my-4 text-gray-700 leading-relaxed">Rio is looking for a hands-on Lead Developer to guide their fast-moving tech team and shape the future of their sustainability platform. You’ll own critical technical decisions, lead feature delivery across a modern stack, and help them scale as they build out the next generation of reporting, automation, and intelligence tools.</p><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">Responsibilities:</h2><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Lead engineering across our full-stack TypeScript platform (React, Node.js, GraphQL, MySQL, Redshift)</li><li class="leading-relaxed">Mentor engineers and drive clean, scalable architecture</li><li class="leading-relaxed">Collaborate with product, design, and data teams to deliver high-impact features and dashboards</li><li class="leading-relaxed">Oversee ETL processes and integration with BI tools (like QuickSight)</li><li class="leading-relaxed">Help expand our AI capabilities for smarter data handling, insight surfacing, and automation</li></ul><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">Essential knowledge, skills & experience:</h2><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Strong experience with TypeScript, React, Node.js</li><li class="leading-relaxed">Solid backend and database knowledge (MySQL, Redshift)</li><li class="leading-relaxed">Comfort navigating cloud infrastructure (AWS)</li><li class="leading-relaxed">Familiarity with GraphQL, ETL pipelines, and BI/reporting tools</li><li class="leading-relaxed">Leadership experience or readiness to step into a team lead role</li></ul><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">Nice-to-have</h2><p class="my-4 text-gray-700 leading-relaxed">Bonus if you’ve worked on platforms handling large-scale data or integrating AI/ML to improve user and operational outcomes. You are AI-driven coding first and are experimenting with tools such as Claude code, Cursor, etc, to improve output and automate parts of your development process.</p><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">Interview Steps</h2><p class="my-4 text-gray-700 leading-relaxed">1.  GT interview with Recruiter</p><p class="my-4 text-gray-700 leading-relaxed">2.  Initial interview</p><p class="my-4 text-gray-700 leading-relaxed">3.  Technical interview</p><p class="my-4 text-gray-700 leading-relaxed">4.  Final interview</p><p class="my-4 text-gray-700 leading-relaxed">5.  Reference Check</p><p class="my-4 text-gray-700 leading-relaxed">6.  Offer</p><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">We go beyond usual perks… By working with us, you will get:</h2><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Health insurance.</li><li class="leading-relaxed">Psychotherapy coverage.</li><li class="leading-relaxed">Sport coverage.</li><li class="leading-relaxed">Learning budget.</li><li class="leading-relaxed">Paid vacations</li><li class="leading-relaxed">Paid sick leave.</li><li class="leading-relaxed">All public holidays are paid days off.</li></ul><h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">GT working model:</h2><p class="my-4 text-gray-700 leading-relaxed">You will work directly with a client through our Extended Team model. We try to do things differently and put our efforts into integrating you as deeply as possible into the client’s team. You work with the same tools and technologies as they do and are managed directly by the client without any intermediary in between. We help you build relationships and create an environment where you genuinely feel like a member of the client’s team. We also encourage trips to a client and join teambuilding and after-work activities. Our Extended Team model is focused on long-term projects that last over several years.</p>

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<p>- This assessment gives us an idea of your C++ skills<br>- Companies that evaluate this skillset in interviews: <strong>Rockstar Games, Ubisoft, Mayhem Studios, etc.</strong><br>- 10 Multiple Choice questions<br>- Average time to complete: <strong>7 to 10 minutes</strong></p>

<p>Let's assess your Data Structures! 📋<br>&nbsp;- This assessment gives us an idea of your problem solving skills using DSA<br>- Companies that evaluate this skillset in interviews: MPL, LILA Games, GSN Games, etc.<br>- 10 Multiple Choice questions<br>- Average time to complete: 7 to 10 minutes</p>

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<p>Let's assess your Unity Skills 📋<br><br>- This assessment gives us an idea of your Unity fundamentals<br>- Companies you can apply for after taking this assessment: Godspeed games, Salvation Games, nCore Games, etc.<br>- 9 questions: 9 Multiple Choice<br>- Minimum score needed to qualify: 80%<br>- Average time to complete: 5 to 10 minutes</p>

zeta

Program Manager - Chronos

Lead Software Development Engineer Backend

Software Development Engineer I - Frontend

Software Development Engineer II

Sr. Program Manager

Software Development Engineer in Test II

Program Manager

Site Reliability Engineer I

Data Scientist II

In this role, you will be leading a complex client program focused on Health Savings Account (HSA) solutions, partnering with U.S.-based healthcare benefit administrators to drive the successful launch and adoption of our platform. As a Program Manager, you will be responsible for orchestrating cross-functional teams to deliver seamless, compliant, and scalable solutions. You will work closely with clients and internal stakeholders to ensure program alignment, execution, and long-term success. This high-impact, client-facing role involves program planning, execution, risk management, and governance, ensuring on-time, on-quality, and on-budget delivery, contributing to the organization's growth in the rapidly evolving health-tech space.

Associate Product Manager II

<p class="my-4 text-gray-700 leading-relaxed">Zeta is a <strong>Next-Gen Banking Tech</strong> company that empowers banks and fintechs to launch banking products for the future. It was founded by <a href="https://en.wikipedia.org/wiki/Bhavin<em>Turakhia" target="</em>blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">Bhavin Turakhia</a> and Ramki Gaddipati in 2015.</p><p class="my-4 text-gray-700 leading-relaxed">Our flagship processing platform - Zeta Tachyon - is the industry’s first modern, cloud-native, and fully API-enabled stack that brings together issuance, processing, lending, core banking, fraud & risk, and many more capabilities as a single-vendor stack. 20M+ cards have been issued on our platform globally.</p><p class="my-4 text-gray-700 leading-relaxed">Zeta is actively working with the largest Banks and Fintechs in multiple global markets transforming customer experience for multi-million card portfolios.</p><p class="my-4 text-gray-700 leading-relaxed">Zeta has over <strong>1700+ employees</strong> - with over <strong>70%</strong> roles in R&D - across locations in the <strong>US, EMEA, and Asia</strong>. Zeta has <strong>raised $400 million at a $2 billion valuation</strong> from Softbank, UHG, Mastercard, and other investors.</p><p class="my-4 text-gray-700 leading-relaxed">Learn more @ <a href="http://www.zeta.tech/" target="<em>blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">www.zeta.tech</a>, <a href="https://careers.zeta.tech/" target="</em>blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">careers.zeta.tech</a>, <a href="https://in.linkedin.com/company/zetasuite" target="<em>blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">Linkedin</a>, <a href="https://twitter.com/zetasuite" target="</em>blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">Twitter</a></p><p class="my-4 text-gray-700 leading-relaxed"><strong>About the Role</strong></p><p class="my-4 text-gray-700 leading-relaxed">In this role, you will be leading a complex client program focused on Health Savings Account (HSA) solutions, partnering with U.S.-based healthcare benefit administrators to drive the successful launch and adoption of our platform. As a Program Manager, you will be responsible for orchestrating cross-functional teams to deliver seamless, compliant, and scalable solutions. You will work closely with clients and internal stakeholders, including Product, Engineering, Compliance, Operations, and Data, to ensure program alignment, execution, and long-term success.</p><p class="my-4 text-gray-700 leading-relaxed">This is a high-impact, client-facing role where you will play a central part in program planning, execution, risk management, and governance. Your role will be crucial in ensuring the on-time, on-quality, and on-budget execution of the program. By driving operational excellence and client satisfaction, you will directly contribute to the growth and strategic success of the organization in the rapidly evolving health-tech space.</p><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Responsibilities</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Planning and Strategy - Collaborate with client counterparts to understand the overall scope of the program, timelines, bottlenecks, and other key factors, and develop a high-level strategy and plan to achieve the strategic objectives and business goals.</li><li class="leading-relaxed">Program execution and governance - Make significant contributions to the overall program execution. Ensure that all rituals are followed religiously, risks are identified well in advance and communicated, work on mitigation plans, and ensure that asynchronous updates are shared with relevant stakeholders without fail. Lead the daily and weekly cadences, as well as governance calls with senior client counterparts.</li><li class="leading-relaxed">Collaboration - Liaising with various product and release engineering teams at Zeta to assess the scope of changes a solution under consideration may require and determine a feasible, optimal release date that meets all business requirements.</li><li class="leading-relaxed">Platform understanding - Develop a deep understanding of the Tachyon platform and associated functional and technical concepts, including various types of product and policy configurations, platform capabilities around integration and extension mechanisms, data transmission, and data migration. Be hands-on and try out the various platform capabilities, including APIs, etc., to build a first-hand understanding and know-how of the platform.</li><li class="leading-relaxed">Stakeholder Management - Work closely with both external stakeholders (clients, vendors, etc.) and internal stakeholders (solution engineers, data engineers, product teams, etc.) to ensure smooth program execution. Also, work with the respective teams to handle any issues or escalations reported by the client or vendors.</li><li class="leading-relaxed">Resource Management -Identify and allocate resources, including budget, personnel, and equipment, to ensure effective utilization. Develop and manage the program budget, ensuring cost-effectiveness</li><li class="leading-relaxed">Change Management-Implement effective change control processes to manage alterations to the program scope, schedule, and resources. Communicate changes to stakeholders and ensure alignment.</li><li class="leading-relaxed">Training - Complete the courses that form part of the training curriculum to deepen your understanding of the Tachyon Platform and its various modules.</li></ul><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Skills</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Data-oriented</li><li class="leading-relaxed">Bias for action</li><li class="leading-relaxed">Exceptional program management skills</li><li class="leading-relaxed">Logically strong first principles thinker</li><li class="leading-relaxed">Excellent written/verbal communication and interpersonal skills, especially with external stakeholders</li><li class="leading-relaxed">Excellent interpersonal, organizational, leadership and mentoring ability</li><li class="leading-relaxed">Rigorous attention to detail</li><li class="leading-relaxed">Ability to thrive in ambiguous business environments and scale with limited resources</li><li class="leading-relaxed">Strong understanding of project management methodologies, processes, and tools.</li><li class="leading-relaxed">Ability to understand technical concepts on SaaS offerings via cloud (AWS), APIs, etc.</li><li class="leading-relaxed">Self-motivated with a drive to learn and adapt to new and ever-changing project demands</li><li class="leading-relaxed">Strong stakeholder relationship management skills – able to influence and manage the expectations of senior executives internally and externally.</li><li class="leading-relaxed">Hands-on, i.e. ‘roll-up-your sleeve’ attitude</li></ul><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Experience & Qualifications</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">8+ years of experience in Technology and Delivery roles,</li><li class="leading-relaxed">Must have been involved in managing and delivering large cross-functional programs from inception to launch</li><li class="leading-relaxed">Prior experience in a client-facing role with medium to large clients</li><li class="leading-relaxed">Experience with B2B enterprise, SaaS / Cloud-based products is a strong plus</li><li class="leading-relaxed">Enterprise SaaS company should have some or all of the following characteristics : Software Characteristics Must have APIs & Implementation must involve some degree of integration with other systems</li></ul><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Equal Opportunity</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Zeta is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We encourage applicants from all backgrounds, cultures, and communities to apply and believe that a diverse workforce is key to our success</li></ul>

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This assessment gives us an idea of your C++ skills- Companies that evaluate this skillset in interviews: Rockstar Games, Ubisoft, Mayhem Studios, etc.- 10 Multiple Choice questions- Average time to complete: 7 to 10 minutes

Let's assess your Data Structures! - This assessment gives us an idea of your problem solving skills using DSA- Companies that evaluate this skillset in interviews: MPL, LILA Games, GSN Games, etc.- 10 Multiple Choice questions

Data Structures and Algorithms

Let's assess your Programming Patterns! ????- This assessment gives us an idea of your code architecture skills- Companies that evaluate this skillset in interviews: Dirtcube, PTW, Playshifu, etc.

Programming Patterns

Let's assess your OOPs skills! ????- This assessment gives us an idea of your fundamental OOPS concepts and Solid principles skills- Companies that evaluate this skillset in interviews: Hitwicket, GSN Games, Tomo Club, etc.

Object Oriented Programming

Let's assess your Unity Skills ????- This assessment gives us an idea of your Unity fundamentals- Companies you can apply for after taking this assessment: Godspeed games, Salvation Games, nCore Games, etc.