CrawlJobs Logo

Senior Full Stack Engineer

United States Employment contract 130000.00 - 150000.00 USD / Year · Job Posted December 05, 2025
Apply Position
Job Link Share

Job Description

Gummicube, a division of Airship, is looking for a Senior Full Stack Software Engineer - Node.js/React to join our growing dev team. Gummicube works with top app developers around the world, and as a Senior Full Stack Engineer, you will have the opportunity to influence the success of some of the biggest brands in the Google Play and Apple App Store. The successful candidate will have the opportunity to make a huge impact on our business and can become a key player on our team.

Job Responsibility

  • Act as a technical leader and key contributor in the design and development of our platform, helping to architect the future of our mobile market intelligence products
  • Mentor and provide technical guidance to other engineers, raising the quality bar for code and development practices across the team
  • Drive complex technical projects from initial concept to live production, ensuring solutions are scalable, maintainable, and aligned with business goals
  • Identify and solve challenging architectural problems and performance bottlenecks in our large-scale data systems

Requirements

  • 5+ years of direct experience
  • Demonstrated experience in technical leadership, including leading projects, mentoring junior and mid-level engineers, and conducting thorough code reviews
  • A deep understanding of system architecture and a proven ability to design and implement robust, scalable solutions
  • Strong problem-solving skills and the ability to drive technical decisions independently and collaboratively
  • A track record of improving engineering processes, team efficiency, and overall code quality
  • Able to deliver, modify, and maintain modern full stack Javascript Node.js applications with React and GraphQL
  • Familiar integrating with AWS infrastructure (DynamoDB, RDS, S3) or similar
  • Experience with test-driven development practices and CI/CD pipelines
  • Experience with Git for version control, issue/feature branching, merge requests
  • Able to flex to other technical task and projects as needed including devops, data management, infosec, legacy systems, and/or device hacking
  • Understanding the importance of delivering value to our clients, not just completing tasks to specs
  • Excellent communication skills, both written and verbal
  • Always interested in learning new technologies and paradigms
  • Self-motivated and able to work fully remote
  • Flexible and able to jump between several different projects in all stages of development cycle from prototypes to live production
  • Experience experimenting with AI tools in your personal or professional life - or an eagerness to learn!

Nice to have

  • Docker
  • Kubernetes
  • Typescript
  • IAC with Pulumi
  • Gitlab
  • Data API/web scraping
  • Big data processing and indexing with Spark and Scala
  • Mobile device- API discovery and reverse engineering with frida and mitm packet inspection
  • InfoSec, network vulnerability scanning and monitoring, pen testing and analysis
  • Meteor
  • MongoDB
  • Python

What we offer

  • Equity
  • Robust benefits package

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Senior Full Stack Engineer

8 matching positions

Senior Full Stack Engineer

Senior Fullstack Engineers at Brighte design, develop, test, and maintain softwa...
Location
Location
Australia , Sydney
Salary
Salary:
Not provided
brighte.com.au Logo
Brighte Capital
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Solid amount of professional experience as a fullstack engineer
  • Strong proficiency in Node.js (REST APIs, async patterns, performance tuning)
  • Deep experience with React (hooks, state management, component architecture)
  • Hands-on experience building and operating microservices in production
  • Solid understanding of API design, database modelling, and distributed systems
  • Experience with CI/CD, testing, security and compliance
  • Experience in the AI space — building on LLMs (OpenAI, Anthropic, etc.), RAG pipelines, or AI agents
  • You've used AI to fundamentally change how you work, not as a novelty, but as your default operating mode
Job Responsibility
Job Responsibility
  • Design, build, and maintain full-stack features across our React frontend and Node.js backend services
  • Architect and evolve microservices with a focus on reliability, scalability, and developer experience
  • Integrate AI capabilities (LLMs, agents, intelligent tooling) into product features and internal workflows
  • Collaborate with product, design, and data teams to deliver high-quality user experiences
  • Contribute to technical roadmap discussions, code reviews, and engineering best practices
  • Mentor mid-level engineers and help raise the bar across the team
What we offer
What we offer
  • Flexible working arrangements to suit individual needs and a hybrid work model
  • Free lunch on Monday Mingle
  • Weekly Thursday social event
  • Opportunity to join Employee Share Option Plans (ESOP)
  • Snacks galore – thoughtfully stocked pantry
  • End-of-trip facilities with towel service and hair dryers
  • Anniversary leave
  • Fulltime
Read More
Arrow Right

Senior Full Stack Engineer

We’re looking for a Senior Full Stack Engineer with deep experience across the m...
Location
Location
United States , Washington DC
Salary
Salary:
40.00 - 55.00 USD / Hour
signifytechnology.com Logo
Signify Technology
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years of software engineering experience building modern web applications
  • Deep expertise within the JavaScript/TypeScript ecosystem
  • Strong experience with Next.js and React.js
  • Proficient in backend development with Node.js
  • Experience building and deploying applications within AWS and serverless environments (Lambda, API Gateway, DynamoDB, SQS, etc.)
  • Strong understanding of API design, integrations, and working with technical/API documentation
  • Experience building scalable, performant, user-centric applications
Job Responsibility
Job Responsibility
  • Build and scale highly consumer-centric healthcare products
  • Work across the stack using technologies like React.js, Next.js, Node.js, GraphQL, AWS, and serverless architectures
  • Create seamless digital experiences for both patients and providers
  • Build end-to-end applications
  • Collaborate closely with product and design
  • Shape technical direction and user experience
Read More
Arrow Right

Senior Full Stack Engineer

Sphere is looking for a versatile full stack engineer who can jump on different ...
Location
Location
United States , San Francisco
Salary
Salary:
180000.00 - 250000.00 USD / Year
helpcare.ai Logo
Helpcare AI
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong experience in Python. Our core application backend and data pipeline services are built with Python and Django
  • While frontend / React may not be your primary focus, you’re not afraid to dive in when needed
  • Very strong attention to detail. When you work with numbers this is a non-negotiable - it’s not enough to be 99% right.
Job Responsibility
Job Responsibility
  • Ship features related to a key component of Sphere’s platform - e.g. filing infrastructure
  • Own and manage this key component, driving measurable outcomes
  • Work directly with customers like Eleven Labs, Replit and Windsurf to improve / optimize that key component of the platform (e.g. improve filing generation and submission speed [x]%)
  • Develop expertise across other key components of Sphere’s platform - e.g. tax engine, new products - to manage and execute improvements in this area
  • Lead / mentor additional engineers in component areas that you have worked in
  • Fulltime
Read More
Arrow Right

Senior Full Stack Engineer

Location
Location
United Kingdom , Manchester
Salary
Salary:
55000.00 GBP / Year
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
June 14, 2026
Flip Icon
Requirements
Requirements
  • Proficiency in at least one modern front-end framework, ideally React
  • Experience in a backend language, ideally Python, for serverless/service code and data handling with the ability to read and improve existing codebases
  • Production experience with GCP services (or equivalent infrastructure experience in AWS/Azure), especially Pub/Sub, Cloud Functions/Run and BigQuery
  • Strong understanding of database technologies (e.g. SQL, NoSQL)
  • Ability to implement and maintain API endpoints powering analysis
  • CI/CD fundamentals and modern Git workflows with an eagerness to automate currently‑manual deploys
  • Familiarity of Terraform or equivalent IaC experience
  • Clear communicator with non‑technical stakeholders (coaches, practitioners)
  • Documentation mindset - you leave the system easier to understand than you found it (runbooks, readmes, diagrams)
  • Ability to work independently and manage multiple tasks effectively
Job Responsibility
Job Responsibility
  • Developing GBCT.io, a live performance platform ingesting real‑time timing, telemetry and environmental data and serving athletes and coaches via a web app
  • Designing and building resilient data pipelines for practitioners
  • Standardising pipelines, improve data quality and enabling data linkage and system integration to unlock new insight, including longitudinal tracking of athlete trajectories
What we offer
What we offer
  • Competitive Salary
  • Cycle to Work Scheme
  • Generous Holidays (25 days + bank holidays)
  • Holiday purchase scheme
  • Life Assurance
  • Pension
  • Fulltime
!
Read More
Arrow Right

Senior Full Stack Engineer

Coralogix is a modern, full-stack observability platform transforming how busine...
Location
Location
Germany , Berlin
Salary
Salary:
Not provided
coralogix.com Logo
Coralogix
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of software development experience
  • 3+ years of experience developing and operating distributed systems in production
  • 2+ years of experience writing backend code in Rust
  • Proficiency with modern Javascript frontend frameworks (Angular, React etc.)
  • Experience with cloud environments, AWS, GCP, Azure, etc.
  • Experience with Kubernetes and Docker containers
  • Ability to multitask, organize, and prioritize work
  • Strong analytical and problem-solving skills
  • Excellent written and verbal communication skills
  • Proficient with AI tools
  • Fulltime
Read More
Arrow Right

Senior Full Stack Engineer

We are looking for a Senior Fullstack Engineer with strong backend expertise to ...
Location
Location
Netherlands , Amsterdam
Salary
Salary:
Not provided
levy-professionals.com Logo
Levy Professionals
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Senior-level experience in backend or fullstack engineering
  • Strong backend development background within distributed systems
  • Proven experience with AWS serverless architectures
  • Hands-on experience with Lambda, DynamoDB, SNS, and SQS
  • Strong TypeScript development experience
  • Experience with Infrastructure as Code, preferably AWS CDK
Job Responsibility
Job Responsibility
  • Design, build, and maintain scalable backend services using Node.js
  • Develop event-driven applications using AWS serverless technologies
  • Work extensively with AWS Lambda, DynamoDB, SNS, and SQS
  • Build and maintain Infrastructure as Code using AWS CDK
  • Write clean, maintainable, and production-grade TypeScript
  • Contribute to architectural discussions and technical improvements
  • Collaborate with existing engineering teams to deliver value quickly
  • Support reliable deployments and distributed system performance
  • Fulltime
Read More
Arrow Right

Senior Full Stack Engineer

GEICO is seeking an experienced Engineer with a passion for building high-perfor...
Location
Location
United States , Seattle
Salary
Salary:
80000.00 USD / Year
geico.com Logo
Geico
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of professional software development experience in large-scale enterprise environments
  • 3+ years of experience with ReactJS and its core principles (e.g., Redux, Hooks)
  • 4+ years of experience with backend technologies, including .NET (C#) and Java
  • 3+ years of experience with cloud platforms such as Azure, AWS, or GCP
  • Experience with RESTful services and APIs
  • Experience with open-source frameworks and tools
  • Hands-on experience in designing and architecting scalable systems
  • Strong proficiency in HTML5, CSS3, and JavaScript (ES6+)
  • Expertise in ReactJS and its ecosystem
  • Experience with backend frameworks such as Java, ASP.NET Core, Spring Boot, or similar
Job Responsibility
Job Responsibility
  • Design and Develop Systems: Architect, develop, and maintain scalable, resilient distributed systems
  • Define Product Requirements: Collaborate with stakeholders to define product requirements and deliver optimal solutions
  • Collaborate Across Teams: Work with cross-functional teams throughout the software development lifecycle to ensure seamless integration and delivery
  • Lead and Mentor: Conduct design sessions, code reviews, and mentor junior engineers to elevate engineering quality and share best practices
  • Develop Reusable Components: Create reusable application components and patterns to improve efficiency and scalability
  • Full-Stack Development: Design, develop, and maintain scalable full-stack applications, including front-end features using ReactJS and its ecosystem, backend services with .NET or Java frameworks, and efficient data management using SQL and NoSQL databases
  • API and Microservices: Develop and integrate RESTful APIs and microservices for seamless communication between systems
  • DevOps Practices: Utilize CI/CD pipelines, containerization (Docker), and orchestration (Kubernetes) to streamline development and deployment
  • Documentation: Publish and maintain documentation for design references, workflows, and runbooks
  • System Support: Provide support for critical systems, including 24x7 on-call support when necessary
What we offer
What we offer
  • Comprehensive Total Rewards program that offers personalized coverage tailor-made for you and your family’s overall well-being
  • Financial benefits including market-competitive compensation
  • a 401K savings plan vested from day one that offers a 6% match
  • performance and recognition-based incentives
  • and tuition assistance
  • Access to additional benefits like mental healthcare as well as fertility and adoption assistance
  • Supports flexibility- We provide workplace flexibility as well as our GEICO Flex program, which offers the ability to work from anywhere in the US for up to four weeks per year
  • Fulltime
Read More
Arrow Right

Senior Full Stack Engineer

Location
Location
India , Hyderabad; Indore; Ahmedabad
Salary
Salary:
Not provided
infogrowth.in Logo
InfoGrowth
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years of professional software development experience in backend or full stack engineering
  • Strong hands-on experience with Node.js, JavaScript (ES6+), and TypeScript
  • Experience building backend services using FastAPI or other Python frameworks
  • Solid understanding of RESTful API design, microservices architecture, and API security best practices
  • Hands-on experience with PostgreSQL/SQL, including schema design and query optimization
  • Experience implementing caching mechanisms using Redis
  • Working knowledge of Docker and basic exposure to Kubernetes for containerized deployments
  • Experience writing unit and integration tests using Jest, Mocha, or similar frameworks, with a focus on clean and maintainable code
Job Responsibility
Job Responsibility
  • Design, develop, and maintain scalable backend services using Node.js, TypeScript, and FastAPI
  • Build and optimize RESTful APIs supporting pricing, subscription, quoting, and billing workflows
  • Design and manage PostgreSQL databases and implement caching strategies using Redis for performance optimization
  • Review code and mentor junior and mid-level developers
  • Write clean, maintainable, and testable code with proper unit testing using Jest/Mocha
  • Deploy and manage applications using Docker and Kubernetes in production environments
  • Collaborate with cross-functional teams to deliver high-quality, scalable, and reliable solutions
  • Continuously improve system performance, scalability, and security in a global, high-growth environment
What we offer
What we offer
  • Competitive salary with performance-based incentives
  • Flexible work model (Work from Office / Hybrid options as applicable)
  • Comprehensive health insurance coverage for employees and dependents
  • Paid time off, sick leave, and company-recognized holidays
  • Learning & development support, including certifications and training programs
  • Opportunity to work on scalable global products in a fast-growing environment
  • Collaborative and inclusive work culture with strong technical mentorship
  • Career growth opportunities with exposure to modern technologies and architecture
  • Fulltime
Read More
Arrow Right