Lead Software Engineer (with .NET)

Job Overview

Here at Relativity we prioritize flexibility and work-life harmony. Our Hybrid work environment provides options tailored to your role and location, aiming to enhance engagement, connectivity, and productivity.Join us to experience a culture of collaboration and innovation, where connecting in-person adds value to our collective growth. Let's work together!We are seeking an experienced Lead Software Engineer who will join Relativity’s Data Transfer group, a high-impact engineering team at the heart of our Ingestion Department. We build and scale the infrastructure that powers secure, reliable, and high-throughput data movement across our SaaS platform. The Lead Software Engineer develops software and guides a team to apply software engineering best practices to provide high-quality, maintainable, reusable, performance, and scalable software. You will be a technical liaison between your team and other development teams to resolve dependencies, improve and apply software engineering best practices and processes, and find and address risks to the delivery of software.

Job Description and Requirements

Your Role in Action: 

• Lead the design of software using abstraction, low coupling, high cohesion, modularization, encapsulation, information hiding, interfaces, and separation of concerns   

• Analyze and estimate non-functional software requirements   

• Contribute to system software architecture development and future projects by working with Staff, Principal Engineers, and Architects   

• Lead the implementation of software using the practical application of algorithms, defensive programming, exception handling, fault tolerance, design patterns, and best practices of Object-Oriented Design and Programming such as SOLID   

• Ensure best practices of Test-Driven Design and the use of autonomous frameworks and Continuous Integration   

• Work with management to mentor team members and guide development growth 

Required Skills and Experience 

• Bachelor's in computer science, engineering, or similar technical degree, or work equivalent experience  

•  7+ years of experience in software development using C#, Java or related object-oriented programming languages 

• A self-starter driven to make an impact with strong Communications skills  

• Comfortable working from specifications to creating a technical approach and scoping work   

• Extensive experience with .NET and Azure, including cloud-native application development and deployment. 

• Proven expertise in designing and building microservices architectures, with a focus on scalability, fault tolerance, and service isolation. 

• Hands-on experience with Kubernetes (K8s) for container orchestration, deployment automation, and service management in production environments. 

• Demonstrated success in building and operating high-throughput systems, capable of handling at least 1,000 requests per second, with attention to performance tuning and load resilience. 

• Strong background in SaaS systems, including multi-tenant architecture, subscription lifecycle, and operational support. 

• Deep understanding of observability and telemetry, including distributed tracing, metrics collection and analysis, centralized logging, alerting and incident response workflows 

• Familiarity with DevOps practices, CI/CD pipelines. 

• Solid grasp of software design principles: abstraction, modularization, SOLID, and separation of concerns. 

• Experience with Test-Driven Development and automated testing frameworks. 

• Obsession with software quality and empathy for customer experience 

• Fluency in English   

Relativity is a diverse workplace with different skills and life experiences—and we love and celebrate those differences. We believe that employees are happiest when they're empowered to be their full, authentic selves, regardless how you identify.

Benefit Highlights:

Comprehensive health, dental, and vision plans

Parental leave for primary and secondary caregivers

Flexible work arrangements

Two, week-long company breaks per year

Unlimited time off

Long-term incentive program

Training investment program

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law.

Relativity is committed to competitive, fair, and equitable compensation practices.

This position is eligible for total compensation which includes a competitive base salary, an annual performance bonus, and long-term incentives.

The expected salary range for this role is between following values:

232 000 and 348 000PLN

The final offered salary will be based on several factors, including but not limited to the candidate's depth of experience, skill set, qualifications, and internal pay equity. Hiring at the top end of the range would not be typical, to allow for future meaningful salary growth in this position.