Software Engineer III (Full Stack

We are looking for a Software Engineer III (Full Stack) to build highly scalable, customer-facing applications that power the next generation of Revenue AI products. This role requires strong engineering fundamentals and hands-on experience building modern web applications across both backend and frontend technologies.

You will work closely with Product Managers, Designers, Architects, and fellow Engineers to design, build, and operate reliable, high-performance software. The ideal candidate is equally comfortable developing scalable backend services in Java and building intuitive user experiences with React. Experience with Python is a plus.

As part of our engineering culture, you'll leverage AI-assisted development tools and autonomous coding agents to accelerate delivery, improve code quality, and automate repetitive engineering workflows. What You'll Do

• Design, develop, test, deploy, and maintain scalable full-stack applications.
• Build high-performance backend services using Java, Spring Boot, and RESTful APIs.
• Develop responsive and reusable frontend applications using React, TypeScript, HTML, and CSS.
• Collaborate with Product, Design, and Architecture teams to translate business requirements into technical solutions.
• Design APIs and data models that are scalable, secure, and maintainable.
• Build applications capable of processing large datasets while maintaining high availability and performance.
• Write clean, maintainable, and well-tested code following engineering best practices.
• Participate in technical design discussions and contribute to architecture decisions.
• Troubleshoot production issues, identify root causes, and implement durable fixes.
• Leverage AI-powered developer tools, coding assistants, and autonomous agents to improve engineering productivity, automate routine development tasks, accelerate software delivery, and enhance software quality.

• Bachelor's degree in Computer Science, Engineering, or a related technical field.
• 4+ years of professional software engineering experience building production software.
• Solid understanding of object-oriented design, software architecture, design patterns, and distributed systems.
• Strong computer science fundamentals, including data structures, algorithms, and system design.
• Strong programming skills in Java with hands-on experience building applications using Spring Boot.
• Experience building modern frontend applications using React and TypeScript.
• Experience with relational and NoSQL databases such as MySQL, PostgreSQL, MongoDB, or similar.
• Experience working with cloud platforms such as AWS, Azure, or Google Cloud Platform.
• Experience working with containerized applications and Kubernetes.
• Experience with Git, CI/CD pipelines, automated testing, and modern software delivery practices.
• Working knowledge of unit, integration, and end-to-end testing frameworks.
• Strong debugging, analytical, and problem-solving skills.
• Excellent written and verbal communication skills.
• Demonstrated experience using AI-assisted development tools, coding copilots, and agent-based workflows to improve software development efficiency and code quality.

Preferred Qualifications

• Experience working with event-driven or distributed architectures.
• Experience with Kafka, messaging systems, or asynchronous processing.
• Experience with Redis or distributed caching technologies.
• Experience with observability platforms, monitoring, logging, and performance tuning.
• Experience with Kubernetes, Docker, and cloud-native application development.
• Experience working with design systems and reusable component libraries.
• Experience with Python and building backend services using frameworks such as Django or FastAPI.
• Knowledge of application security best practices.

What Makes You Successful

• You take ownership from design through production and continuously improve the systems you build.
• You enjoy solving complex technical problems while balancing scalability, reliability, and maintainability.
• You thrive in collaborative, cross-functional environments and communicate technical ideas effectively.
• You proactively identify opportunities to simplify systems, automate workflows, and improve engineering productivity.
• You embrace learning new technologies and are excited about applying AI to transform how software is built.

You'll help build products used by some of the world's leading B2B organizations while working alongside talented engineers who value ownership, collaboration, and innovation.

You'll have the opportunity to solve challenging technical problems at scale, influence architecture, leverage cutting-edge AI development practices, and make a meaningful impact in 6sense's future.

Base Salary Range: $135,056.25 - $198,082.50. The base salary range represents the anticipated low and high end of the base salary range for this position. Actual salaries may vary and may be above or below the range based on various factors, including but not limited to work location and experience. The base salary is one component of 6sense's total compensation package for this position. Other compensation may include a bonus program or commission plan, and stock options if approved by 6sense's board. In addition, 6sense provides a variety of benefits, including generous health insurance coverage, life, and disability insurance, a 401K employer matching program, paid holidays, self-care days, and paid time off (PTO). #Li-remote

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Our Benefits:

Full-time employees can take advantage of health coverage, paid parental leave, generous paid time-off and holidays, quarterly self-care days off, and stock options. We'll make sure you have the equipment and support you need to work and connect with your teams, at home or in one of our offices.

We have a growth mindset culture that is represented in all that we do, from onboarding through to numerous learning and development initiatives including access to our LinkedIn Learning platform. Employee well-being is also top of mind for us. We host quarterly wellness education sessions to encourage self care and personal growth. From wellness days to ERG-hosted events, we celebrate and energize all 6sense employees and their backgrounds.

6sense's mission is to multiply what matters: growth, retention, and efficiency. We envision a future where companies, teams and people reach their full potential. Our People: People are the heart and soul of 6sense. We serve with passion and purpose. We live by our Being 6sense values of Win as One Team, Stay Curious, Do The Right Thing, Own the Outcome, and Create Belonging. Every 6sensor plays a part in defining the future of our industry-leading technology. 6sense is a place where difference-makers roll up their sleeves, take risks, act with integrity, and measure success by the value we create for our customers. We want 6sense to be the best chapter of your career.