Back-end Engineer Software, CoreHR

The team collaborates closely with product and UX partners in the United States while remaining fully co-located in CZ. The technical stack includes containerized .NET services, ReactJS, AWS, OpenSearch, and Amazon Bedrock, supporting modern, scalable search and AI-driven experiences., Senior Back-end Engineer Software leads technical initiatives and drives engineering excellence across our organization. This role combines technical expertise with leadership capabilities, focusing on architecting scalable solutions while mentoring and growing the engineering team.

Primary Responsibilities

The below represents the primary duties of the position, others may be assigned as needed. To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Core Responsibilities

• Architect and implement modular, maintainable software solutions that optimize for performance and scalability
• Lead feature and epic design discussions, gathering and incorporating feedback from cross-functional teams
• Drive technical decision-making with consideration for business objectives and customer needs
• Identify and resolve technical ambiguities through systematic analysis and collaboration
• Own medium to large-scale projects from conception to delivery, requiring minimal supervision
• Coordinate across teams to identify and manage technical dependencies
• Develop and execute comprehensive project plans aligned with business objectives
• Maintain high-quality standards while meeting project timelines
• Champion best practices in software development, testing, and deployment
• Improve CI/CD pipelines, testing frameworks, and monitoring systems
• Provide detailed, actionable code reviews that enhance overall code quality
• Drive technical debt reduction initiatives and refactor legacy code

Growth & Development

• Guide junior engineers in adopting best practices and modern development techniques
• Facilitate knowledge sharing through code reviews, pair programming, and technical discussions
• Resolve conflicts independently when possible, escalating appropriately when needed
• Influence technical direction through well-reasoned arguments and demonstrated expertise

• Bachelor's degree in Computer Science, Software Engineering, or related field
• Minimum 5 years of software engineering experience
• Proven track record of leading significant technical initiatives
• Excellent written and verbal communication skills
• Strong analytical and problem-solving abilities
• Collaborative mindset with ability to influence peers
• Adaptable approach to changing requirements and priorities

Technical Skills

• 5+ years of hands-on professional experience in software development, with a strong focus on backend engineering
• Strong experience building backend systems using .NET / C# (preferred) or a comparable backend stack, with the ability to contribute at a senior level
• Deep understanding of modern API standards and backend system design (REST, authentication, authorization, versioning, scalability)
• Experience designing and operating systems backed by PostgreSQL, MongoDB, or other databases
• Strong understanding of backend architecture, data modeling, performance tuning, and reliability
• Proven experience designing and implementing testable systems, including unit tests, integration tests, and automated test strategies
• Ability to design and deliver backend solutions with a focus on maintainability, scalability, and long-term evolution
• Experience making or influencing architectural decisions in collaboration with other engineers
• Basic understanding of frontend technologies and how frontend applications interact with APIs
• Ability to own backend components or services end-to-end, including design, implementation, and maintenance
• Ability to work effectively in an agile, cross-functional, English-speaking team
• Commitment to delivery and accountability for technical quality
• Passion for writing clean, maintainable, and efficient code
• Strong analytical and problem-solving skills
• Strong sense of curiosity and continuous learning
• Adaptability to new technologies, evolving requirements, and a dynamic environment

Nice to have:

• Experience with search technologies such as OpenSearch
• Familiarity with cloud services (AWS preferred)
• Experience with CI/CD pipelines and DevOps practices
• Knowledge of observability and monitoring tools (Datadog, Prometheus, etc.)
• Experience with AI technologies, distributed systems, or data-intensive platforms
• Familiarity with React or previous full-stack experience

Physical requirements

• Ability to sit for extended periods: The role requires sitting at a desk or workstation for long periods, typically 7-8 hours a day.
• Use of computer and phone systems: The employee must be able to operate a computer, use phone systems, and type. This includes using multiple software programs and inquiries simultaneously.

Paylocity is an award-winning provider of cloud-based HR and payroll software solutions, offering the most complete platform for the modern workforce. The company has become one of the fastest-growing HCM software providers worldwide by offering an intuitive, easy-to-use product suite that helps businesses automate and streamline HR and payroll processes, attract and retain talent, and build a strong workplace culture. While traditional HR and payroll providers automate basic HR processes such as payroll and benefits administration, Paylocity goes further by developing tools that HR and businesses need to compete for talent and deliver against the expectations of the modern workforce. Want to develop the strategies and principles needed to deliver compelling software? Join our team and help us enhance our all-in-one software platform, elevate our one-of-a-kind technology, and improve the employee experience. Take your career to the next level at one of G2's Top 100 Software Companies. Explore our Product & Technology positions to see where you fit! About the Team The CoreHR group (also known as HRIS / People Data) is made up of 8 teams with dedicated ownership and an overall mission of growing and enhancing the services and products in the HR domain.