Sr. Software Engineer (Backend)
Quick Summary
Our Mission: 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.
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.
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.
About the Role
~1 min readAs a Senior Software Engineer, you’ll join a dynamic team responsible for building scalable, robust, and fault-tolerant backend systems. This is a high-impact role where you’ll work on critical projects that drive platform scalability, optimize performance, and improve system reliability for a global customer base. You will collaborate with cross-functional teams and have the opportunity to work on cutting-edge technologies while solving complex challenges. Your contributions will be instrumental in ensuring 6sense delivers seamless customer experiences.
- Build Scalable Systems: Design, develop, and maintain APIs and microservices capable of processing millions of daily data requests and emails.
- Optimize Performance: Enhance system reliability and ensure low-latency, high-availability services by leveraging Redis and other caching solutions.
- Focus on Email Deliverability: Work on improving email systems and protocols (e.g., SMTP) to ensure high deliverability rates.
- Drive Innovation: Partner with product, design, and frontend teams to develop new features and enhance existing functionalities.
- Cloud and Infrastructure: Collaborate with DevOps to implement best practices in CI/CD pipelines and AWS infrastructure.
- Contribute to Architecture: Participate in decisions about system architecture, tool adoption, and technology innovation.
- Leverage generative AI and AI coding tools to accelerate developer productivity, engineering workflows, and automation of repetitive tasks
- Python / Ruby on Rails
- PostgreSQL
- Redis
- SingleStore
- AWS (ECS, RDS, Kinesis, Lambda, Terraform)
Experience :
- 5+ years of professional backend development experience, with a focus on scalable systems.
- Hands-on expertise with Redis, PostgreSQL, and AWS.
- Familiarity with email protocols (e.g., SMTP) and strategies for improving deliverability.
- Understanding of AI-native software development practices, including automated code generation, AI-driven testing, and human-in-the-loop review systems
- Proven ability to adopt and drive modern engineering paradigms, particularly integrating AI into development workflows to improve productivity, quality, and delivery speed
- Proficiency in backend frameworks such as Ruby on Rails, Python, or Node.js.
- Strong understanding of microservices architecture and API design.
- Experience with cloud services (AWS) and containerization tools (Docker, Kubernetes).
- Strong problem-solving ability and debugging skills.
- Effective communication and collaboration with cross-functional teams.
- A growth mindset with a passion for learning new technologies.
- Experience with SingleStore or similar databases.
- Knowledge of distributed systems or TDD practices.
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.
Equal Opportunity Employer:
6sense is an Equal Employment Opportunity and Affirmative Action Employers. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status. If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to jobs@6sense.com.
We are aware of recruiting impersonation attempts that are not affiliated with 6sense in any way. All email communications from 6sense will originate from the @6sense.com domain. We will not initially contact you via text message and will never request payments. If you are uncertain whether you have been contacted by an official 6sense employee, reach out to jobs@6sense.com
Location & Eligibility
Listing Details
- Posted
- May 28, 2026
- First seen
- May 28, 2026
- Last seen
- May 28, 2026
Posting Health
- Days active
- 0
- Repost count
- 1
- Trust Level
- 53%
- Scored at
- May 28, 2026
Signal breakdown
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