Principal Software Engineer
Ernst and Young15 days ago
Wrocław, PolandStaff+
Responsibilities
- Lead delivery of software or infrastructure development services for large or complex projects.
- Own the design, development, delivery, and maintenance of technical solutions while ensuring compliance with relevant standards.
- Perform coding, debugging, testing, and troubleshooting for complex and escalated project work.
- Provide advanced technical expertise, improve efficiency and reliability, and implement continuous improvement plans.
- Collaborate with Development, Engineering, and Architecture teams to develop and engineer solutions.
- Provide leadership for the work group and establish appropriate expectations, structures, tools, and responsibilities.
- Drive consistency across technical processes, procedures, standards, and designs.
- Design and implement language-model fine-tuning, embedding-model applications, agentic systems, and evaluation frameworks.
Requirements
- Advanced technical proficiency in designing, developing, and debugging solutions.
- Advanced knowledge of one or more of C#, Java, or Python.
- More than 10 years of applied experience and significant relevant software or platform engineering experience.
- Bachelor’s degree in computer science, engineering, IT, mathematics, or a related field is preferred.
- Experience delivering software or platform engineering solutions, providing technical advice, and handling user requirements.
- Experience with CI/CD delivery using code-management, configuration-management, and automation tools such as GitHub and ADO.
- Proficiency fine-tuning language models for text generation, summarization, or question answering.
- Knowledge of embedding models for similarity matching, clustering, and information retrieval.
- Familiarity with designing agentic systems that combine AI models with external tools or environments.
- Ability to design evaluation frameworks for AI models and agents, including metrics, A/B testing, and performance benchmarking.
- Significant experience building applications with Kubernetes and Docker.
- Microsoft, Google, or AWS certifications are desirable.
- Ability to work independently as a self-starter, independent thinker, curious and creative professional.
Benefits
- Hybrid work arrangement in Wrocław or Katowice with two days in the office and three days remote.
- Continuous learning opportunities and support for developing new skills.
- Tools and flexibility to make a meaningful impact according to individual goals.
- Leadership insights, coaching, and confidence-building opportunities.
- Diverse and inclusive global culture with collaboration across EY teams and locations.
Tech Stack
Categories
About Ernst and Young
Ernst & Young (EY) provides audit/assurance, tax, consulting, strategy and transactions services to enterprises, financial institutions, and public‑sector clients. Structured as a global network of partner‑owned member firms, it sells professional services on a fee basis, including a dedicated Financial Services Organization for banking, insurance, and capital markets. Headquartered in London, EY was formed in 1989 from the merger of Ernst & Whinney and Arthur Young, and operates in 150+ countries.