Mercans LLC

A Senior Back-End Developer is responsible for designing, developing, and maintaining high-performance backend systems. This position plays a key role in contributing to the definition of architecture, improving system efficiency, and ensuring seamless integrations. It requires a strong technical background, hands‑on experience with backend technologies, and the ability to solve complex problems.

Duties and Responsibilities

Development of Backend Solutions

• Implement and maintain high-quality backend components, ensuring they meet performance, security, and scalability requirements.

Code Quality & Standards

• Follow production, productivity, and quality standards to maintain high coding excellence.
• Write clean, maintainable, and well-documented code.

Contribution to Architecture

• Provide input on architectural decisions, collaborating with the development team to design sustainable and efficient solutions.

Error Monitoring and Issue Resolution

• Continuously monitor system performance and proactively identify potential errors.
• Implement necessary corrections in a timely manner to maintain system stability and reliability.

Technical Documentation

• Prepare and maintain clear, high-quality technical documentation as per company standards to support development, maintenance, and knowledge sharing.
• Ensure documentation is accessible to relevant internal and external stakeholders.
• Communicate essential technical information effectively to ensure smooth collaboration.

Mentorship and Collaboration

• Support junior developers through code reviews, knowledge sharing, and best practices adoption.
• Cooperate with team members and other departments to align development efforts with business needs.

Education and Experience

• At least 5+ years of relevant work experience.
• Must have AI experience – developing prompts.
• Must have at least 3 years of enterprise-level experience specializing in the architecture of tools utilizing low‑code or internal application development platforms, such as Superblocks, Retool, Appsmith, Palantir Foundry, Lovable, or other AI rapid development tools.
• Strong proficiency in Kotlin, Java/Spring.
• Bachelor's or master's degree in CS, Engineering, or equivalent practical experience.
• Experience with relational and non-relational databases (MySQL, MongoDB, or similar).
• Experience with CI/CD tools, repositories, and build processes.
• Knowledge of Agile methodologies.
• Strong design and problem-solving skills, with a focus on engineering excellence.
• Good knowledge of software development lifecycle (SDLC) and operational best practices.
• Excellent written and verbal communication skills.

Nice to Have

• Previous experience with HR and/or Payroll software.
• Payroll-related knowledge.

Performance Goals

• Reduce Code Defects by 30%: Specific: Achieve a 30% reduction in code defects. Measurable: Code defect rates. Achievable: Implementing best practices in code quality, automated testing, and thorough review processes. Relevant: Improving code quality aligns with product performance goals. Time‑bound: Achieve by the end of 3‑6 months.
• Ensure 100% Code Review Coverage: Specific: Ensure all code changes undergo code reviews. Measurable: Percentage of code changes reviewed. Achievable: Set up automated reminders and review workflows for all code changes. Relevant: Code review coverage is essential for maintaining high code quality. Time‑bound: Achieve 100% coverage within 3‑6 months.
• Mentoring: Specific: Mentor and assist with onboarding for at least one backend developer. Measurable: One or more backend developers successfully onboarded. Achievable: Utilize existing documentation and training materials, adjust as needed, schedule regular check-ins and feedback sessions. Relevant: This goal supports the company's growth and scaling strategy. Time‑bound: 3 months to onboard a developer.
• Architectural Input: Specific: Provide architectural input on at least three key backend features/modules to improve scalability, performance, and maintainability. Measurable: Minimum 3 features for the review period. Achievable: Seek feedback from senior developers, tech lead, CTO/deputy CTO to refine suggestions before proposing them to the wider team. Relevant: Supports the team's need for efficient, scalable solutions. Time‑bound: 6 months.
• Improve Estimation Accuracy by 20%: Specific: Improve the accuracy of the total estimation vs. the spent time. Measurable: Compare estimation vs. actual spent time. Achievable: Conduct retrospective analyses, improve estimation techniques, and adjust processes. Relevant: Improving estimation helps in better project planning and resource allocation. Time‑bound: Achieve at least a 20% improvement compared to the previous review period.