Source Job

$156,000–$185,000/yr
US Unlimited PTO 12w maternity 6w paternity

  • Design, develop, and maintain backend services, APIs, and data pipelines that power Knock's customer-facing and internal applications.
  • Architect and build scalable backend services using Node.js and TypeScript, ensuring they integrate seamlessly with our frontend experiences.
  • Contribute to AI-powered features and initiatives, integrating AI services to enhance our risk analysis and decision-making capabilities.

Node.js TypeScript RESTful APIs RDBMS SQL

20 jobs similar to Senior Full Stack Software Engineer

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$150,000–$220,000/yr
US

  • Ownership over large domains and features related to card processing/issuing, and core ledgering of financial transactions
  • Play a critical role in the development, design, and maintenance of Flex's platform and services.
  • Architect well thought-out services and data models that ensure Flex's continued growth

Flex is building a finance super app for premium business owners, reimagining the financial workflow and services for entrepreneurs. They focus on mid-market businesses and are a fully remote company, with a team that values autonomy, clarity, and quality.

US

  • Design and build scalable services and APIs for web applications.
  • Architect and maintain robust backend systems and database models.
  • Analyze product requirements and produce high-quality, production-ready code.

Solace is a healthcare advocacy marketplace that connects patients and families to experts who help them understand and take charge of their personal health.

$200,000–$250,000/yr
US

  • Lead end-to-end delivery and drive technical direction across a real-time, high-scale product surface.
  • Architect, build, and evolve systems spanning backend services and modern web UIs that power live calling workflows.
  • Partner closely with Product and Design, shaping the roadmap as engineering, product, and design are equal partners.

Orum's AI-powered suite frees salespeople to do what they do best: connect, listen, and sell.

$158,440–$198,050/yr
Canada

Design, develop, and maintain secure, high-performance crypto wallet systems and backend infrastructures. Architect modular, scalable, and secure backend infrastructures that support mass adoption and operational excellence. Collaborate with cross-functional teams to define technical requirements, optimize setups, and ensure integration with ecosystem partners.

This position is posted by Jobgether on behalf of a partner company.

US

  • Design, develop, and maintain high-quality, scalable web applications and platform services.
  • Build robust backend services and APIs using modern frameworks and cloud-native patterns.
  • Provide architectural direction, evaluate technical trade-offs, and guide long-term platform evolution.

We are seeking an experienced Senior Fullstack Developer who excels in both hands-on engineering and leading projects.

US

  • Develop and deliver full-stack AI-powered applications on top of Unframe’s platform.
  • Work closely with customers and internal teams to tailor solutions.
  • Write clean, tested, and maintainable code.

At Unframe, you’ll build real, customer-facing AI applications - end to end.

$137,700–$182,426/yr
US

  • Contribute to building innovative software solutions for a global user base, focusing on localization and internationalization.
  • Collaborate with engineers, designers, and product managers to deliver high-quality features that leverage AI technologies.
  • Mentor other engineers, influence application architecture, and participate in on-call rotations to support platform reliability.

This position is posted by Jobgether on behalf of a partner company.

  • Develop and maintain robust, scalable backend systems using Node.js (Express and NestJS).
  • Collaborate with engineers, designers, and product managers to drive projects forward.
  • Tune and optimize database queries for maximum efficiency and performance.

ClickUp is an AI workspace, unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI.

Europe UK

  • Design, build, and extend back‑end systems using Supabase.
  • Develop and maintain TypeScript‑based APIs and integrations.
  • Collaborate with front‑end developers to deliver end‑to-end features.

Renew Earth operates a technology platform that helps businesses measure, validate, and realize the value of nature by combining scientific data with business intelligence tools.

$150,000–$180,000/yr
Latin America

  • Design and build cloud-native APIs, services, and front-end experiences.
  • Contribute to key architectural decisions and lead mid-sized engineering projects.
  • Collaborate with cross-functional teams to deliver AI-powered workflows and product experiences.

Luxury Presence is a digital platform revolutionizing the real estate industry. They empower real estate professionals to grow their business and deliver exceptional client service. Founded in 2016, Luxury Presence has grown to a global team and has been ranked on the Inc. 5000 fastest-growing companies list three years in a row.

  • Architect, develop, and optimize scalable backend services.
  • Drive the evolution of our platform’s core infrastructure.
  • Ensure reliability, performance, and seamless integration across our ecosystem.

ClickUp is building the first truly converged AI workspace, unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI.

Global

  • Work with teams to modernize platform components and refactor legacy code.
  • Improve APIs, frontend, backend, and CI/CD; ensure observability and security.
  • Establish AI-assisted development guardrails and champion these practices.

Gcore provides infrastructure and software solutions for AI, cloud, network, and security. They power real-time communication, streaming, enterprise AI, and secure web applications, with over 550 professionals globally and 210+ edge locations.

Europe 5w PTO

  • Responsible for writing efficient, well-structured, and maintainable code; setting an example for other engineers.
  • Provide technical guidance and help junior and mid-level engineers grow in their roles.
  • Integrate AI tools throughout the development lifecycle, with critical evaluation for security, performance, and maintainability.

Rithum accelerates how brands, suppliers, and retailers work together to deliver seamless e-commerce experiences through their platform. They are trusted by over 40,000 companies and represent over $50 billion in annual GMV.

$88,200–$151,200/yr
Poland

Leads the AI roadmap from concept to production. Builds production-ready, accurate, and reliable AI agents. Continuously improves performance of AI solutions.

Symbe is an innovative business intelligence startup that automates business case creation for sales teams, helping them effectively demonstrate value.

Europe Unlimited PTO

  • Architect, design, and build backend systems that transform our internal AI technology into a scalable, market-ready product.
  • Design and optimize APIs, database schemas, and data processing workflows that seamlessly integrate with our AI/ML pipelines.
  • Collaborate with the Product, Data, and Engineering teams to define technical requirements and deliver features that enhance our users’ experience and overall system performance.

Sword Health is shifting healthcare from human-first to AI-first through its AI Care platform. Sword Health has 1,000+ enterprise clients and has raised more than $500 million from leading investors.

Spain

As a Senior Full-stack Engineer, you’ll play a key role in shaping and evolving our Echo Design System. You’ll help build and maintain the component libraries and documentation that every frontend engineer at Typeform relies on. You’ll also collaborate closely with Product Design, bringing an engineering perspective to design reviews and sign-offs.

Typeform is a leading provider of innovative survey and data collection solutions, known for our flagship product, Typeform.

  • Build scalable backend services and APIs.
  • Create responsive dashboards and tools to manage automation systems.
  • Implement automation workflows to power real-time operations.

Base360.ai is an intelligent automation engine that connects data, orchestrates workflows, and powers large-scale operational systems.

$92,400–$112,200/yr
AU

Lead the design, implementation, and delivery of new services, features, and system improvements. Influence architecture and contribute to shaping the technical roadmap as the product scales. Build reliable, observable, maintainable systems and champion engineering best practices.

Budgetly is building an AI-first platform that simplifies expense management and optimises financial decision-making for SMEs, helping them spend smarter and grow profitably.

  • Collaborate in a Cross-Functional Team: Work closely with Frontend Engineers, Product Teams, Designers, and QA professionals to create seamless experiences.
  • Participate in Product Planning: From discovery to deployment, we value your input throughout all stages of the Software Development Lifecycle.
  • Develop and Enhance Features: Collaborate to develop robust new features, APIs, and continuously improve our industry-leading products.

Deel is the all-in-one payroll and HR platform for global teams, with a vision to unlock global opportunity for every person, team, and business. The company's 7,000 team members span more than 100 countries, speak 74 languages, and bring a connected and dynamic culture.

Europe

Strengthen Enode’s Connect platform and integrations. Design and implement backend features that support customer use cases. Contribute to the architecture and reliability of the Connect platform and scale.

Enode’s platform powers the next generation of green energy apps by connecting and optimizing the world’s energy devices through our APIs.