We are looking for a talented and motivated Back-end Developer to join our team. As a Back-end Developer, you will play a key role in building and maintaining high-performance, scalable, and distributed systems. You will be responsible for creating efficient, reliable, and scalable backend services that power our applications and provide excellent user experiences. The ideal candidate should have hands-on experience with modern back-end technologies, strong problem-solving skills, and a deep understanding of distributed data systems, performance optimization, and concurrency. If you're passionate about solving complex technical challenges and optimizing back-end systems, we'd love to hear from you! **NOTE:** - **Preferred experience range: 2-5 Years** - **Candidates must be open to work within USA time zones EST/EDT and PST/PDT hours.** ### Key Responsibilities **Responsibilities:** - Design, implement, and maintain back-end services using Golang or Node.js. - Build, manage, and scale systems on AWS infrastructure. - Develop and maintain complex SQL databases, ensuring optimal query performance and database design. - Work closely with front-end developers and other team members to deliver seamless and scalable solutions. - Write and maintain efficient, well documented, and reusable code. - Contribute to CI/CD pipelines for automated testing and deployment processes. - Resolve race conditions, concurrency issues, and improve overall system performance through efficient solutions. - Profile and optimize code for performance, scalability, and low-latency operations. - Leverage your deep understanding of advanced data structures and algorithms to tackle complex problems. - Continuously improve the backend infrastructure by identifying bottlenecks and optimizing system reliability. ### Skills, Knowledge and Expertise **Requirements:** - Proven experience in Back-end development, specifically with Golang or Node.js. - Strong hands-on experience with AWS (e.g., EC2, S3, RDS, etc.). - Proficiency in writing and optimizing SQL queries and working with relational databases. - Solid experience with the Linux operating system, including scripting and system administration. - Expertise in CI/CD workflows, including tools like Jenkins, GitLab CI, or CircleCI. - Deep understanding of concurrency, with a proven ability to identify and resolve race conditions using effective synchronization techniques. - Experience in profiling and tuning code to ensure optimal system performance and efficiency. - Strong foundation in data structures and algorithms, with the ability to implement complex algorithms to solve performance-sensitive tasks. - Ability to troubleshoot complex issues and provide innovative solutions in a fast-paced, collaborative environment. **Preferred Skills (Bonus):** - Familiarity with GO, C++ and OOPs based design. - Familiarity with Postgres databases. - Experience in developing high-performance systems in multi-cloud environments. - Knowledge of writing tests in Golang, including unit and integration testing using tools like the native testing package, Testify, and Gomock. - Knowledge of AI models and LLMs, including API integration with tools like OpenAI or Anthropic for building AI-powered backend features and services. - Knowledge of database scaling strategies, including read replicas, sharding, partitioning, load balancing, caching mechanisms, and high-availability configurations for handling large-scale data. ### Benefits **Flexible Work & Time-Off Culture:** At BIG Happy Inc. we believe that great work comes from a well balanced life. Our flexible time-off policy and work-from-home options empower employees to manage their schedules effectively, recharge when needed, and maintain a healthy work-life balance without compromising productivity. **Comprehensive Health & Family Support:** We prioritize the well-being of our team and their families. Our plans provide parental support policies, including maternity benefits, ensure that employees feel supported during important life stages. **Performance-Driven Rewards & Growth:** We recognize and reward impact. Through performance bonuses and incentive programs, employees are acknowledged for their contributions and achievements, fostering a motivating environment that supports both personal and professional growth. **Relocation & Seamless Transition Support:** Joining us from a different location? We’ve got you covered. Our relocation support and reimbursement policies are designed to make your transition smooth and stress-free, allowing you to focus on settling into your role and new environment. **Inclusive Culture & Collaborative Environment:** Our workplace thrives on collaboration, inclusivity, and engagement. From cross-functional 1:1s to team building activities like movie outings, events, and office get-togethers, we ensure every team member feels connected, valued, and empowered to contribute meaningfully.