> Markdown version of [/jobs/ext/3604773-sr-software-engineer-backend](https://www.wearedevelopers.com/jobs/ext/3604773-sr-software-engineer-backend). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Software Engineer - Backend - **Company:** Lively, Inc. - **Location:** San Francisco, CA, United States (Remote available) - **Experience:** Expert - **Salary:** $125,000.0 - $200,000.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Unit Testing, Software Quality, Relational Databases, Software Design Patterns, DevOps, PostgreSQL, MySQL, Node.Js, Scrum Methodology, Software Architecture, Software Engineering, TypeScript, Web Performance Optimization, ReactJS, System Availability, AWS Lambda, Backend, Information Technology, Api Design - **Published:** October 7, 2026 - **Apply:** https://www.sanfranciscogigs.com/job.asp?id=3423396460&tx=JT9587TTZ&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * 7+ years of experience in software development, with a strong backend development background * Bachelor's degree in Computer Science, Engineering, or a related field; or equivalent practical experience. * Strong experience with Javascript, Typescript and Node.js. * Strong fundamental understanding of relational Databases (Postgresql, Mysql). * Proven experience in designing and developing scalable, high-performance web applications. * Strong understanding of software architecture and design patterns. * Excellent problem-solving skills and a proactive approach to identifying and addressing challenges. * Proven experience on building backend services with high availability and scalability requirements. * Able to model and design intuitive and scalable schemas. * Experience with agile/scrum development methodologies. * Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams. * Passion for technology and a continuous learner mindset. * Motivated to leverage new AI tools and technologies. * Someone who isn't afraid of responsibility, a good sense of humor and a down-to-earth personality. * Familiarity with AWS cloud platforms and DevOps practices is a plus. ## Description We are looking for a strong Backend Senior Software Engineer who wants to create deep and meaningful product engagement experiences! We have an increasing user base, and you will be focusing on implementing and enhancing our investment and financial products. Our customers trust us with a lot: integrating seamlessly across financial institutions, moving funds, tracking balances, helping with their healthcare decisions, and keeping their data extremely secure. In order to take on this mission we're building our applications on modern web technologies around HTML/CSS/Javascript/React, NodeJS/Typescript, PostgreSQL, Amazon Lambdas and Kinesis etc. You should be comfortable in contributing to every part of the stack: from UI to API development, to complex integrations with financial institutions and partners, and building infrastructure, but you will be expected to be focused mostly on backend development. You should feel comfortable in a fast paced, growing, and nimble environment, keeping in mind that everything we do is to better the lives of our users! Responsibilities * Analyze and provide feedback on product requirements. * Implement features and functionality with clean and maintainable codes. * Take pride in software quality through rigorous functional testing and writing automated unit tests. * Troubleshoot production issues, provide resolutions and recommendations for improvement.