Senior Software Engineer
Fellow is seeking a Senior Software Engineer to build and ship end-to-end features using React/TypeScript, Django/Python, and GraphQL/Relay. Key responsibilities include championing AI tooling, focusing on outcome-oriented delivery, and contributing to quality through rigorous testing and code reviews. This role involves close partnership with Product and Design to turn concepts into polished, user-impacting experiences in a fast-paced, remote-first environment.
Full-stack Engineer - Revops Engineering
The Revenue Operations Engineering team seeks a Software Engineer to optimize commercial operations (Marketing, Sales, Partnerships, CX) by designing and maintaining an efficient tech stack. Key responsibilities include developing scalable backend services using Kotlin/Java, building frontend components with TypeScript/Node.js, and integrating third-party systems via APIs and webhooks to streamline business processes.
Senior AI Engineer
QuartzBio is seeking a Senior AI Engineer to join the expanding software engineering team. Responsibilities include designing, developing, testing, and maintaining software applications, with a focus on architecting and scaling GenAI systems for conversational data exploration using biomarker data. The role requires strong software architecture understanding, proficiency in AI/ML production deployment, and the ability to mentor peers and contribute to strategic planning.
Senior Full-Stack Engineer
The Senior Full Stack Engineer will be a vital member of the AI Applications team, focusing on both frontend and backend development using technologies like React, TypeScript, and Python/FastAPI. Key responsibilities include building and deploying full-stack applications, designing RESTful APIs, and managing data persistence with SQL and NoSQL databases. The role requires collaboration across teams, deployment on AWS using Docker/Kubernetes, and acting as the customer-facing Tech Lead.
Senior Software Engineer (Full-Stack)
Counsel Health is seeking an experienced Senior Software Engineer to define the future of AI-enabled healthcare by working across full-stack web development, data infrastructure, and AI/MLOps. Key responsibilities include leading product initiatives, integrating cutting-edge AI/LLM techniques into clinical care, and architecting scalable backend systems. This role requires 5+ years of production software experience and proficiency in the company's modern tech stack.
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Software Engineer, Frontend - Sevenrooms
The role seeks a Frontend-focused Software Engineer to design, develop, and maintain highly performant, mission-critical systems for a hospitality technology platform. Key responsibilities include focusing strongly on customer-facing features, taking technical ownership of features from design to deployment, and partnering with cross-functional teams. Candidates should utilize technologies like Typescript, ReactJS, and Redux while thriving in a collaborative environment.
Frontend Software Engineer II
The company is seeking a Software Engineer to deliver high-quality software solutions by contributing to the design, implementation, testing, and maintenance of applications, focusing on continuous learning and best practices. Key responsibilities include building high-volume, low-latency services and designing/building components specifically in ReactJS. The role requires ensuring on-time delivery of software while maintaining good automated testing coverage and providing input for monitoring and CI/CD needs.
Senior Full-stack Developer (react Native)
The Senior Full-Stack Developer will be responsible for developing the React Native mobile application and its supporting TypeScript/Postgres backend, moving fluidly between both. This role involves guiding architectural decisions and working directly with the CTO, marketing team, and data scientists to deliver new features. The developer should be comfortable diving into infrastructure, security, auditing, and analytics while working in a flexible, remote-first culture within Canada.
Software Engineer II, Full-Stack - Acquisition Growth
Dave is seeking a talented full-stack Software Engineer II to play an instrumental role in building products that improve financial opportunity for millions. Key responsibilities include full-stack web/mobile application development using Javascript/Typescript, A/B testing, and contributing to features for subscription management and user onboarding. The role involves developing features using frameworks like React & React Native and participating in the design and development of tested APIs that interface with multiple services.
Senior Software Engineer - Route Execution
The Senior Software Engineer will join the Route Execution team to build systems for route planning, optimization, dispatch, and real-time tracking for various fleets. Responsibilities include working across the stack with a strong focus on the web UI to improve dispatcher tools and build scalable backend APIs handling geospatial and real-time data. The role involves partnering with design, product, and mobile teams to deliver reliable features to customers in the logistics, field services, and delivery industries.
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Senior Software Engineer - Route Execution
The Senior Software Engineer will join the Route Execution team to build and improve systems for route planning, optimization, dispatch, and real-time tracking for logistics fleets. Responsibilities include developing scalable backend APIs, improving web UI tools using TypeScript and React, and creating driver-facing navigation features. This role requires 4+ years of experience and involves working across the stack to deliver performant features used by customers daily.
Software Engineer, Frontend (all Levels)
Zip is hiring a Frontend Engineer (Mid-level to Staff) to build beautiful, performant, and scalable user-facing experiences using React. The role involves taking ownership of core frontend architecture, shipping features with direct customer impact, and collaborating in a cross-functional team environment. Key responsibilities include designing and building reliable products, writing high-quality code, and developing scalable frontend applications and APIs.
Sr Staff Software Engineer, Product Platform (Backend)
This Senior Staff Software Engineer role focuses on Platform Engineering, responsible for designing and maintaining foundational software infrastructure, shared services, and developer tools for the company's product ecosystem. Key responsibilities include providing technical direction for backend systems handling data ingestion and routing, contributing to architecture, and partnering with cross-functional teams to implement features. The role involves significant research and development in building scalable, high-performing distributed systems that process large datasets in real-time.
Full-Stack Engineering Specialist - Freelance AI Trainer Project
This freelance contract role seeks an experienced Full Stack Engineering specialist to provide technical depth and architectural insight for training large-scale language models. Key responsibilities include evaluating and refining AI-generated code outputs for correctness, efficiency, and scalability across the stack. Candidates must be proficient in frontend and backend technologies like JavaScript/TypeScript, Python/Java, React/Node.js/Django, and databases, applying expertise to refine prompts and engineering guidelines.
Software Engineer
ModernFi is hiring software engineers to design, build, and maintain foundational backend systems powering their platform and integrations. Responsibilities include designing scalable services, leading technical initiatives, partnering with Product on requirements, and upholding engineering best practices. The role requires 4+ years of experience, with levels (mid to Staff) determined during the interview process.
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Full-Stack Software Engineer
Atrato is seeking a Full Stack Software Engineer passionate about scaling fintech solutions. Key responsibilities include designing and developing web applications, building and maintaining RESTful APIs using Node.js and TypeScript, and developing back-end systems with MySQL. The role requires collaborating with the Product team to deliver features impacting thousands of users and driving technical excellence.
Senior Software Engineer Backend Focused (node&react) - TĂŒrkiye
The role seeks a Senior Fullstack Engineer to build and scale impactful digital products for clients, working closely with a dedicated product team. Key responsibilities involve designing, developing, and deploying high-quality web and mobile applications, ensuring security and scalability, and engaging in code reviews and mentorship. The position requires 5+ years of experience with Node and React, emphasizing code quality and analytical skills, with the potential for future leadership opportunities.
Software Engineer, Mobile (react Native)
Owner.com is seeking a mission-driven Mobile Software Engineer with React Native expertise to build new products and features for their AI growth system. This role involves shaping product direction, delivering value to end-users, and taking ownership of projects from conception to shipping, all within a remote-first, global company.
Senior Software Engineer, Frontend (checkout Experience International)
The Senior Software Engineer will be responsible for maintaining UIs and APIs powering Affirm's international checkout experiences, collaborating with product, design, and analytics teams. Key responsibilities include owning and delivering quarterly team goals, leading engineers through ambiguity, and proactively identifying and solving process or technical issues. The role requires fostering a culture of quality, supporting on-call efforts, and driving feature development across US and European partner teams.
Senior Software Engineer, Frontend (checkout Experience International)
The Senior Software Engineer will maintain UIs and APIs powering Affirm's international checkout experiences, collaborating with product, design, and analytics teams. Key responsibilities include owning quarterly goals, leading engineers, driving feature development, and ensuring operational availability through metrics and on-call support. The role requires technical leadership in architecting solutions, advocating for improvements, and fostering a culture of quality within the team.