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Senior Software Engineer (Ukraine/Poland Only)



Software Engineering
Posted on Tuesday, April 18, 2023
Our Senior Software Engineers help elevate our product user experience. Senior Software Engineers will participate in building beautiful, clean, and simple applications that do just this. This role requires someone with a technical understanding as well as eagerness to provide end-to-end service to enhance the development of various features. Senior Software Engineers work closely with the Engineering Team as well as other key stakeholders to understand the intricacies of building a product that embodies both 15Five’s core values.
*No agencies please*


  • Software Development
  • Write efficient code according to 15Five’s standards, guidelines, and best practices of the engineering team.
  • Write automated tests
  • Develop and maintain documentation both in-code and in peripheral systems with the goal of sharing an understanding of our code and systems with the larger team
  • Identify, research, debug, and fix issues in development, staging, and production environments
  • Actively participate in design conversations
  • Act as the on-call first responder for the software owned by your team
  • Contribute to other team activities and collaborate to solve problems
  • Participate in code reviews within your team
  • Participate in squad rituals and meetings
  • Developing front end website architecture
  • Basic design ability including knowledge of UI/UX and basic prototype design
  • Developing back-end website applications
  • Creating servers and databases for functionality
  • Ensuring cross-platform optimization for mobile phones
  • Ensuring responsiveness of applications
  • Working alongside graphic designers for web design features
  • Seeing through a project from conception to finished product
  • Designing and developing APIs
  • Meeting both technical and consumer needs
  • Team Development and Mentorship
  • Participate in code reviews, using each opportunity for training and mentoring the wider Engineering team
  • Build and maintain engineering processes, standards, guidelines, and best practices
  • Adhere to guidelines, making sound decisions on a case-by-case basis and escalating as necessary
  • Develop processes to minimize situations that require decisions outside of established rules
  • Assist and mentor other engineers in their professional development
  • Participate in the hiring process, evaluate and screen candidates, conduct or lead interviews when required


  • 7+ years of relevant work experience
  • An understanding of writing modular, well-structured code
  • Strong organizational and project management skills
  • Proficiency with server-side languages such as Python and web frameworks such as Django
  • Proficiency with database technology such as MySQL and PostgreSQL
  • Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript
  • Familiarity with modern JavaScript frameworks such as React, Vue.js
  • Comfortable in asking for help when needed
  • Able to make logical decisions while keeping in mind various tradeoffs and main stakeholders
  • Capable of effectively evaluating data to make decisions
  • Strong communication skills across multiple office and remote settings, cultures, and time zones
  • Able to work cross functionally with a team of designers, product managers, and business stakeholders
  • Understand strong cooperation between back-end, front-end, DevOps, and QA teams
  • Understand the cross-functionality of various technical systems
  • Produce exceptional output and work quality
  • Have a strong reputation for accountability and reliability
  • Enjoy working in a team but can thrive working independently
  • Desire to always be learning and staying on top of the latest trends and technologies
  • Passionate about being extraordinary in both your work life and personal life
  • Deeply aligned with the Engineering team’s values and philosophy
  • Attention to detail
About 15Five
15Five is the holistic performance management company. 15Five equips HR teams with a complete platform solution to improve manager effectiveness, drive high performance and engagement, and increase retention. 15Five’s easy-to-use software, coaching, manager training, and community enables HR leaders to continuously measure engagement and performance, and empower managers to drive change.
At 15Five, we focus on building a diverse team that prioritizes inclusivity and celebrates everyone’s unique identity. We are proud of our thriving hybrid culture that supports a remote-first workplace balanced with annual opportunities for all employees to connect in person.
For more information see:
Our Mission, Vision, & Values - https://www.15five.com/about
Our People and Culture - https://www.15five.com/about/careers
Diversity, Equity, Inclusion, & Belonging - https://www.15five.com/deib
Our Personal & Professional Development Resources - https://www.15five.com/resources/content-library