Senior Full Stack Ruby on Rails Software Engineer

🏢 Summary: Senior/Lead Ruby on Rails role focused on leading backend architecture and development while supporting frontend integration with React. The position involves driving technical direction, ensuring scalability and performance, and maintaining high code quality across the project. The role also acts as a technical point of contact aligning engineering outcomes with business goals. 🗂️ Requirements: Mastery of Ruby on Rails, Expert-level Ruby proficiency, Experience designing scalable backend architectures, Experience with React, Proven experience leading technical projects or modules, Ability to conduct code reviews and enforce best practices 📃 Skills: Ruby, Rails, React, Backend, Architecture, REST, Git, SQL 🏢 Description: We are looking for a high-level Ruby on Rails Expert to take a key role in the development team. This position is designed for someone who excels in backend architecture but can also navigate the frontend landscape when needed. As a Senior or Lead Developer, you will be responsible for the technical direction of the project, ensuring high performance, and maintaining a robust codebase while communicating effectively with international stakeholders. Responsibilities Technical Leadership: Leading the backend development lifecycle using Ruby on Rails . Architecture: Designing and implementing scalable, secure, and maintainable backend services. Full-stack Support: Collaborating on the frontend layer, specifically with React (experience here is a big plus). Code Quality: Conducting code reviews, mentoring team members, and establishing best development practices. Communication: Acting as a technical point of contact, ensuring clear alignment between technical goals and business needs. Requirements Expertise: Mastery of Ruby on Rails and the Ruby language. Frontend: Practical experience with React (highly desirable). Ownership: Proven ability to lead projects or significant technical modules. Soft Skills: Proactive attitude, strong problem-solving skills, and a "Lead" mindset.

🏢 Summary: Senior Fullstack Engineer role in a global investment firm focused on building and modernizing high-performance financial platforms. The position involves end-to-end development across backend and frontend, optimizing financial data systems, and contributing to cloud-based, distributed architectures. The role combines enterprise engineering with modern cloud and streaming technologies in a global, agile environment. 🗂️ Requirements: 7+ years of professional full-stack development experience, Hands-on experience with C# and .NET, Hands-on experience with Node.js, Hands-on experience with React, Strong knowledge of SQL Server and T-SQL, Experience designing scalable server-side applications, Experience optimizing high-throughput databases, Ability to participate in architecture and design reviews, Professional English proficiency 📃 Skills: C#, .NET, Node.js, ReactJS, AngularJS, SQL, T-SQL, SQLServer, Cloud, Containers, DataStreaming, AI, ML 🏢 Description: About the Role & Project We are recruiting for a leading global alternative investment firm (Hedge Fund) that is modernizing capital markets. We are not looking for a traditional, single-stack developer. We need a Senior Fullstack Engineer who comfortably bridges the gap between robust enterprise systems and cutting-edge cloud/AI solutions. You will join an agile tech team building high-performance platforms where your code directly impacts complex, global financial systems. Tech Stack Backend: C# / .NET, Node.js Frontend: ReactJS (with occasional legacy AngularJS maintenance) Data: SQL Server, T-SQL Architecture: Cloud, Containers, Data Streaming Key Responsibilities End-to-End Dev: Design and scale server-side apps (Node.js/.NET) and build responsive UIs (React). Data & Perf: Optimize high-throughput SQL Server stored procedures for financial data. Modernization: Leverage streaming and cloud technologies to build resilient, distributed platforms. Architecture: Take an active role in tech design reviews, architecture discussions, and mentoring. Requirements 7+ years of professional full-stack development experience. Hands-on mastery of C#/.NET, Node.js, React, and T-SQL. Engineering standards: Strong analytical skills, clean code mindset, and solid application design focus. Communication: Excellent English skills to collaborate smoothly with international teams. Bonus Points: Experience or interest in integrating AI/ML models into enterprise apps. Prior background in FinTech, banking, or trading environments . What We Offer Financial & Future: Private pension scheme, life & travel insurance, educational assistance reimbursement. Health & Wellness: Premium medical & dental package (with vision allowance) + MultiSport card. Culture & Perks: Pre-funded lunch card, Employee Assistance Program, volunteer opportunities, and active DEI affinity groups. If interested, please click apply! :)

🏢 Summary: Senior Full Stack Engineer role focused on building and scaling a next-generation renewable energy platform using React and TypeScript. You will own features end to end, contribute to architectural decisions, and deliver scalable, production-grade solutions in a cloud-native environment. The position combines full stack development, cloud infrastructure, and collaboration on product direction within a small senior team. 🗂️ Requirements: Strong proficiency in JavaScript, Strong proficiency in TypeScript, Commercial experience with React, Commercial experience with Node.js, Experience building scalable production-grade applications, Experience with PostgreSQL, Experience with Docker, Experience with Azure or AWS cloud platforms, Ability to write clean, well-tested, maintainable code 📃 Skills: JavaScript, TypeScript, React, Node.js, PostgreSQL, Docker, Azure, AWS, Python, MachineLearning 🏢 Description: We are looking for a Senior Full Stack Engineer (React + TypeScript) to join a small, senior team building next-generation tools for the global renewable energy transition. You will own features end to end, from concept to production, on a platform used by leading solar and energy companies worldwide. This role suits a strong full stack developer who writes clean, well-tested code, cares about scalability and maintainability, and is comfortable shaping both technical solutions and product direction alongside engineering peers and product managers. About the Project: Sitemark is a Belgian technology company accelerating the shift to renewable energy through data and AI. Its platform helps solar and energy companies monitor, analyze, and optimize renewable energy assets using drone data and AI driven insights, and has supported more than 10,000 projects across 82 countries. You will work on the next generation of this platform, combining cloud native infrastructure, full stack development, and modern engineering practices to deliver a scalable, data driven system that powers decision making for sustainable energy infrastructure. Responsibilities: Lead end to end development of new platform features, from planning and prioritization through implementation, testing, and deployment; Contribute to architectural decisions, ensuring high performance, maintainability, and scalability; Collaborate closely with product managers and engineering peers to shape technical solutions and product direction; Write clean, efficient, well tested code following established best practices; Participate in product brainstorming, refinement, and continuous improvement sessions; Share knowledge and mentor peers within a small, agile team. Qualifications: Strong fluency in JavaScript and TypeScript, with solid experience in React and Node.js; Proven track record of building scalable, production grade applications; Working knowledge of relational databases (PostgreSQL) and containerization (Docker); Experience with or strong interest in cloud infrastructure on Azure or AWS; Passion for clean, maintainable, reusable code with a strong focus on testing; Collaborative mindset, self driven approach to problem solving, and ability to pick up new technologies quickly; Experience with Python or Machine Learning is a plus. Recruitment Process: HR screening (30 minute Zoom call); Technical challenge: coding round, problem solving round, brainstorming round; Offer call. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.

🏢 Summary: Senior Full Stack Engineer role focused on building and scaling a next generation renewable energy platform using React and TypeScript. The position involves end to end feature ownership, architectural decision making, and delivering cloud native, data driven solutions for global energy companies. You will work in a small senior team to develop scalable, production grade applications powering sustainable energy infrastructure. 🗂️ Requirements: Strong experience with JavaScript, Strong experience with TypeScript, Commercial experience with React, Commercial experience with Node.js, Experience building scalable production grade applications, Experience with PostgreSQL, Experience with Docker, Experience with Azure or AWS cloud infrastructure, Ability to write clean, well tested code, Experience with full stack development 📃 Skills: JavaScript, TypeScript, React, Node.js, PostgreSQL, Docker, Azure, AWS, Python 🏢 Description: We are looking for a Senior Full Stack Engineer (React + TypeScript) to join a small, senior team building next-generation tools for the global renewable energy transition. You will own features end to end, from concept to production, on a platform used by leading solar and energy companies worldwide. This role suits a strong full stack developer who writes clean, well-tested code, cares about scalability and maintainability, and is comfortable shaping both technical solutions and product direction alongside engineering peers and product managers. About the Project: Sitemark is a Belgian technology company accelerating the shift to renewable energy through data and AI. Its platform helps solar and energy companies monitor, analyze, and optimize renewable energy assets using drone data and AI driven insights, and has supported more than 10,000 projects across 82 countries. You will work on the next generation of this platform, combining cloud native infrastructure, full stack development, and modern engineering practices to deliver a scalable, data driven system that powers decision making for sustainable energy infrastructure. Responsibilities: Lead end to end development of new platform features, from planning and prioritization through implementation, testing, and deployment; Contribute to architectural decisions, ensuring high performance, maintainability, and scalability; Collaborate closely with product managers and engineering peers to shape technical solutions and product direction; Write clean, efficient, well tested code following established best practices; Participate in product brainstorming, refinement, and continuous improvement sessions; Share knowledge and mentor peers within a small, agile team. Qualifications: Strong fluency in JavaScript and TypeScript, with solid experience in React and Node.js; Proven track record of building scalable, production grade applications; Working knowledge of relational databases (PostgreSQL) and containerization (Docker); Experience with or strong interest in cloud infrastructure on Azure or AWS; Passion for clean, maintainable, reusable code with a strong focus on testing; Collaborative mindset, self driven approach to problem solving, and ability to pick up new technologies quickly; Experience with Python or Machine Learning is a plus. Recruitment Process: HR screening (30 minute Zoom call); Technical challenge: coding round, problem solving round, brainstorming round; Offer call. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.

🏢 Summary: Senior Full Stack Developer role focused on building enterprise-grade applications for capital markets and risk using React and C# .NET Core. The position involves developing scalable microservices, REST APIs, modern web UIs, and data-driven solutions in a cloud environment. Responsibilities include CI/CD implementation, event-driven architecture, cloud migration, and Power BI reporting. 🗂️ Requirements: Strong experience with React and TypeScript, Strong experience with C# and .NET Core, Experience building REST APIs, Experience developing microservices and distributed systems, Experience with CI/CD pipelines, Experience with Azure or AWS cloud platforms, Experience with Power BI and data modeling, Strong SQL and database knowledge, Experience with Docker and Kubernetes, Experience in capital markets domain especially credit risk or market risk, Strong understanding of software architecture and system design 📃 Skills: React, TypeScript, JavaScript, C#, DotNetCore, REST, Microservices, Azure, AWS, PowerBI, SQL, Docker, Kubernetes, Kafka, AzureDevOps, Jenkins, GitHubActions 🏢 Description: About the Role We are looking for a Senior Full Stack Developer with strong expertise in React on the frontend and C# .NET Core on the backend to build and enhance enterprise-grade applications in the capital markets and risk domain. The role involves developing scalable microservices, modern web applications, and data-driven solutions in a cloud environment. Key Responsibilities Design, develop, and maintain full stack applications using React and C# .NET Core Build and maintain REST APIs and microservices in distributed environments Develop modern, responsive UI components using React, TypeScript, and modern frontend patterns Work closely with business stakeholders in capital markets and risk domains (credit risk, market risk) Develop and maintain Power BI dashboards and data models for business reporting Implement and maintain CI/CD pipelines and automated deployment processes Contribute to event-driven architecture using tools such as Kafka or similar messaging technologies Participate in cloud migration and modernization initiatives (Azure or AWS) Ensure code quality through testing, code reviews, and best engineering practices Mentor junior developers and contribute to architectural decisions Requirements Strong experience with React, JavaScript/TypeScript Strong experience with C#, .NET Core, REST APIs Experience building microservices and distributed systems Experience with CI/CD tools (Azure DevOps, Jenkins, GitHub Actions) Experience with Azure or AWS Experience with Power BI and data modeling Strong SQL and database knowledge Experience with Docker / Kubernetes Experience working in capital markets , especially credit risk or market risk Strong understanding of software architecture and system design Excellent communication skills and experience working with business stakeholders

🏢 Summary: Senior FullStack Developer role in a fast-growing SaaS environment, responsible for designing and delivering scalable, high-performance web applications using NestJS and NextJS. The position involves leading architectural decisions, ensuring code quality, optimizing system performance, and mentoring engineers across cross-functional squads. You will drive backend and frontend development, CI/CD reliability, and production stability in a modern, zero-legacy stack. 🗂️ Requirements: 5+ years of fullstack development experience, Strong experience with NestJS, Node.js, NextJS, and TypeScript, Strong knowledge of PostgreSQL, data modeling, and optimization, Experience building and consuming REST APIs with JWT authentication, Ability to lead architecture decisions and enforce code quality, Experience with CI/CD pipelines and Docker, Frontend performance optimization experience (SSR, lazy loading, state management), Ability to collaborate in cross-functional teams (product, QA, design) 📃 Skills: NestJS, Node.js, NextJS, TypeScript, PostgreSQL, REST, JWT, CI/CD, Docker, Kubernetes, ArgoCD, Storybook, React, Kafka, RabbitMQ, AWS, Terraform, Sentry, Datadog, Groundcover 🏢 Description: 1. Job Purpose We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for a talented Senior FullStack Developer to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications. 2. Key Responsibilities Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads. 3. Required Skills & Qualifications Experience: 5+ years of fullstack development experience; NestJS , Node.js , NextJS , and TypeScript Strong understanding of PostgreSQL , data modeling, and optimization techniques Solid experience building and consuming REST with secure JWT-based auth flows Proven ability to lead architecture decisions, enforce code quality, and guide teams through technical complexity Familiarity with CI/CD pipelines , Docker , and environment management (bonus: K8s, ArgoCD) Experience with frontend performance optimization (SSR, lazy loading, state management) Comfortable working in cross-functional squads with product, QA, and design Good communication skills Nice to Have: Experience with component libraries (e.g., Storybook, React UI) or design systems Exposure to event-driven systems using tools like Kafka, RabbitMQ, or AWS SNS/SQS Knowledge of Infrastructure as Code (Terraform) Background in observability tooling (e.g., Sentry, Datadog, Groundcover) and defining alerting/logging standards Contributions to internal platforms, shared packages , or developer experience tools Soft Skills Clear written and async communication, especially in distributed teams Systemic thinking — sees the bigger picture across stack, squads, and product Ownership mindset, from design to delivery to incident resolution Pragmatic decision-making, balancing trade-offs in real-world scenarios 4. Key Performance Indicators (KPIs) End-to-end feature delivery reliability Architecture quality and system scalability Code review throughput and mentorship impact Production stability and issue resolution time Documentation, testing, and developer experience 5. What We Offer Competitive compensation 22 paid vacation days + local national holidays Annual learning & development budget Opportunity to impact a fast-growing multi-product company Cross-functional projects, modern stack, and zero legacy burden

🏢 Summary: Senior FullStack Developer role focused on building and scaling high-performance web applications using NestJS and NextJS. The position involves leading architecture decisions, ensuring code quality, and optimizing performance across backend and frontend systems. You will drive scalable, secure solutions and maintain reliable CI/CD and production environments. 🗂️ Requirements: 5+ years of fullstack development experience, Strong experience with NestJS, Node.js, NextJS, TypeScript, Strong knowledge of PostgreSQL and data modeling, Experience building and consuming REST APIs, Experience implementing JWT-based authentication, Ability to design scalable and secure architectures, Experience with CI/CD pipelines and Docker, Experience optimizing frontend performance (SSR, lazy loading, state management), Ability to enforce code quality and conduct code reviews 📃 Skills: NestJS, Node.js, NextJS, TypeScript, PostgreSQL, REST, JWT, Docker, CI/CD, Kubernetes, ArgoCD, Kafka, RabbitMQ, AWS, SNS, SQS, Terraform, Sentry, Datadog, Groundcover, Storybook, React 🏢 Description: 1. Job Purpose We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for a talented Senior FullStack Developer to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications. 2. Key Responsibilities Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads. 3. Required Skills & Qualifications Experience: 5+ years of fullstack development experience; NestJS , Node.js , NextJS , and TypeScript Strong understanding of PostgreSQL , data modeling, and optimization techniques Solid experience building and consuming REST with secure JWT-based auth flows Proven ability to lead architecture decisions, enforce code quality, and guide teams through technical complexity Familiarity with CI/CD pipelines , Docker , and environment management (bonus: K8s, ArgoCD) Experience with frontend performance optimization (SSR, lazy loading, state management) Comfortable working in cross-functional squads with product, QA, and design Good communication skills Nice to Have: Experience with component libraries (e.g., Storybook, React UI) or design systems Exposure to event-driven systems using tools like Kafka, RabbitMQ, or AWS SNS/SQS Knowledge of Infrastructure as Code (Terraform) Background in observability tooling (e.g., Sentry, Datadog, Groundcover) and defining alerting/logging standards Contributions to internal platforms, shared packages , or developer experience tools Soft Skills Clear written and async communication, especially in distributed teams Systemic thinking — sees the bigger picture across stack, squads, and product Ownership mindset, from design to delivery to incident resolution Pragmatic decision-making, balancing trade-offs in real-world scenarios 4. Key Performance Indicators (KPIs) End-to-end feature delivery reliability Architecture quality and system scalability Code review throughput and mentorship impact Production stability and issue resolution time Documentation, testing, and developer experience 5. What We Offer Competitive compensation 22 paid vacation days + local national holidays Annual learning & development budget Opportunity to impact a fast-growing multi-product company Cross-functional projects, modern stack, and zero legacy burden

🏢 Summary: Senior FullStack Developer role focused on building and scaling high-performance SaaS web applications using NestJS and NextJS. The position involves leading architecture decisions, ensuring code quality, and optimizing system performance across backend and frontend. The role also drives CI/CD reliability, observability standards, and cross-functional technical alignment. 🗂️ Requirements: 5+ years fullstack development experience, Strong experience with NestJS, Node.js, NextJS, TypeScript, Strong knowledge of PostgreSQL and data modeling, Experience building and consuming REST APIs, Implementation of JWT-based authentication, Experience with CI/CD pipelines, Experience with Docker and environment management, Frontend performance optimization (SSR, lazy loading, state management), Ability to lead architecture decisions and enforce code quality 📃 Skills: NestJS, Node.js, NextJS, TypeScript, PostgreSQL, REST, JWT, CI/CD, Docker, Kubernetes, ArgoCD, Kafka, RabbitMQ, AWS, Terraform, Sentry, Datadog, Groundcover, Storybook, React 🏢 Description: 1. Job Purpose We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for a talented Senior FullStack Developer to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications. 2. Key Responsibilities Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads. 3. Required Skills & Qualifications Experience: 5+ years of fullstack development experience; NestJS , Node.js , NextJS , and TypeScript Strong understanding of PostgreSQL , data modeling, and optimization techniques Solid experience building and consuming REST with secure JWT-based auth flows Proven ability to lead architecture decisions, enforce code quality, and guide teams through technical complexity Familiarity with CI/CD pipelines , Docker , and environment management (bonus: K8s, ArgoCD) Experience with frontend performance optimization (SSR, lazy loading, state management) Comfortable working in cross-functional squads with product, QA, and design Good communication skills Nice to Have: Experience with component libraries (e.g., Storybook, React UI) or design systems Exposure to event-driven systems using tools like Kafka, RabbitMQ, or AWS SNS/SQS Knowledge of Infrastructure as Code (Terraform) Background in observability tooling (e.g., Sentry, Datadog, Groundcover) and defining alerting/logging standards Contributions to internal platforms, shared packages , or developer experience tools Soft Skills Clear written and async communication, especially in distributed teams Systemic thinking — sees the bigger picture across stack, squads, and product Ownership mindset, from design to delivery to incident resolution Pragmatic decision-making, balancing trade-offs in real-world scenarios 4. Key Performance Indicators (KPIs) End-to-end feature delivery reliability Architecture quality and system scalability Code review throughput and mentorship impact Production stability and issue resolution time Documentation, testing, and developer experience 5. What We Offer Competitive compensation 22 paid vacation days + local national holidays Annual learning & development budget Opportunity to impact a fast-growing multi-product company Cross-functional projects, modern stack, and zero legacy burden

🏢 Summary: Senior individual contributor engineering role focused on building and delivering scalable software, driving technical direction, solving complex problems, and mentoring engineers while remaining hands-on with development. The position involves working across backend and frontend systems using Ruby, Rails, React, PostgreSQL, Redis, Kafka, Elasticsearch, and Kubernetes. 🗂️ Requirements: Strong experience with Ruby, Experience leading complex cross-team projects, Ability to solve complex technical problems, Ability to work independently in ambiguous environments, Strong communication with technical and non-technical stakeholders, Experience mentoring engineers 📃 Skills: Ruby, Rails, PostgreSQL, Redis, React, Kafka, Elasticsearch, Kubernetes 🏢 Description: We are looking for a Senior Engineer to join our team and help us build and deliver software at scale. We have a flat structure, but this is a very senior individual role for someone who can make a big impact. In this role, you will take initiative, solve complex problems, improve our technical standards, and support other engineers. You will work closely with leadership to shape our technical direction while still writing code. Our Tech Stack Ruby 3.3.8 & Rails 7.2 PostgreSQL & Redis React (frontend) Kafka, Elasticsearch, Kubernetes (K8s) What you will do Drive technical work: Help turn high-level goals into clear projects and plans. Support the team: Mentor both junior and senior engineers to help them grow. Set standards: Improve how we work and make sure our code stays maintainable in the future. Handle uncertainty: Work without clear instructions at times, set direction, and guide others. Solve complex problems: Take the lead on difficult issues and important technical decisions. What we are looking for Strong experience with Ruby Experience in HR, Fintech, or Accounting systems is a plus Proven impact: experience leading complex projects across teams Good communication: able to work with both engineers and non-technical stakeholders Initiative: able to find important problems and follow through with solutions The process Screening call: 15-minute chat with a recruiter System design interview: 60-minute discussion about architecture Behavioral interview: 60-minute conversation about your experience and teamwork Final call: conversation with the CEO

🏢 Summary: Senior individual contributor role focused on building and delivering scalable software systems while shaping technical direction and standards. The position combines hands-on Ruby/Rails development with system design, cross-team technical leadership, and mentoring. The engineer will lead complex initiatives and drive architectural decisions in a modern distributed stack. 🗂️ Requirements: Strong experience with Ruby, Experience with Rails framework, Experience designing scalable systems, Proven experience leading complex cross-team technical projects, Ability to make architectural decisions, Experience mentoring engineers, Experience with distributed systems and backend integrations, Ability to work with PostgreSQL and Redis, Experience working with React frontend, Experience with Kafka, Elasticsearch, and Kubernetes 📃 Skills: Ruby, Rails, PostgreSQL, Redis, React, Kafka, Elasticsearch, Kubernetes, HR, Fintech, Accounting 🏢 Description: We are looking for a Senior Engineer to join our team and help us build and deliver software at scale. We have a flat structure, but this is a very senior individual role for someone who can make a big impact. In this role, you will take initiative, solve complex problems, improve our technical standards, and support other engineers. You will work closely with leadership to shape our technical direction while still writing code. Our Tech Stack Ruby 3.3.8 & Rails 7.2 PostgreSQL & Redis React (frontend) Kafka, Elasticsearch, Kubernetes (K8s) What you will do Drive technical work: Help turn high-level goals into clear projects and plans. Support the team: Mentor both junior and senior engineers to help them grow. Set standards: Improve how we work and make sure our code stays maintainable in the future. Handle uncertainty: Work without clear instructions at times, set direction, and guide others. Solve complex problems: Take the lead on difficult issues and important technical decisions. What we are looking for Strong experience with Ruby Experience in HR, Fintech, or Accounting systems is a plus Proven impact: experience leading complex projects across teams Good communication: able to work with both engineers and non-technical stakeholders Initiative: able to find important problems and follow through with solutions The process Screening call: 15-minute chat with a recruiter System design interview: 60-minute discussion about architecture Behavioral interview: 60-minute conversation about your experience and teamwork Final call: conversation with the CEO