Senior Software Engineer (.NET)

Relativity; Białystok; Remote; PLN 181,000 - 271,000; Full time

Job summary

A leading technology firm in Poland is seeking a Senior Software Engineer to design, write, and support software products. You will work with a senior team to develop features for their SaaS platform in a cloud-native environment. The ideal candidate has over 5 years' experience in C#/.NET and strong cloud skills. This role offers competitive compensation, including a performance bonus.

Benefits

Comprehensive health, dental, and vision plans

Parental leave

Flexible work arrangements

Two week-long company breaks per year

Additional time off

Long-term incentive program

Training investment program

Qualifications

• 5+ years delivering C#/.NET or similar services with proven reliability/performance improvements.
• Designing and operating distributed SaaS architectures from business requirements.
• Cloud-native delivery experience, preferably with Azure.

Responsibilities

• Create architecture and non-functional design for Import/Export services.
• Decompose complex problems into resilient, cloud-native designs.
• Advise and mentor team members on code quality and best practices.
• Drive operational excellence using observability data.

Skills

C#/.NET services delivery

Distributed SaaS architectures

Production ownership

Cloud-native delivery (Azure)

CI/CD automation

Education

Bachelor’s in CS/Engineering or equivalent

Job description

Posting Type

Remote

Job Overview

As a Senior Software Engineer, your primary mission will be to design, write, test, deploy, and support our Relativity software products. You will work in an established, senior team with business stakeholders to develop the product, features and services that drive and evolve our Relativity One SaaS. You will join Relativity’s Import Export organization, 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.

Job Description And Requirements

Your Role in Action

• Create architecture and non-functional design for Import/Export services that meet SLO/SLA targets
• Decompose complex problems into resilient, cloud-native designs
• Deliver milestones with measurable outcomes
• Advise and mentor team members on code quality, technical debt management, and best practices
• Own production systems by leading on-call procedures, RCAs, and proactive issue resolution that reduce MTTR
• Drive operational excellence using observability data to prioritize work, automate alerts, and expose trustworthy metrics
• Shape the roadmap with Product through clear trade-offs and data-backed decisions
• Optimize CI/CD by designing automation that keeps deployments predictable and compliant

Required Skills

• 5+ years delivering C#/.NET or similar services with proven reliability/performance improvements
• Designing and operating distributed SaaS architectures from business requirements
• Production ownership: on-call rotations, RCAs, telemetry-driven MTTR reduction
• Cloud-native delivery (Azure preferred)
• Hands‑on CI/CD automation, testing, and deployment governance
• Bachelor’s in CS/Engineering or equivalent; fluent in English

Nice to Have

• Led microservice architecture for high-volume event‑driven workloads
• Scaled ingestion/data pipelines or ETL workflows with measurable outcomes
• Mentored teams in agile planning and cross‑team collaboration

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
• Additional 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:
181 000 and 271 000 PLN

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.

Suggested Skills

• Automation
• Data Analysis
• Database Management
• Network Architecture
• Performance Optimizations
• Problem Solving
• Project Management
• Software Development
• System Designs
• Technical Leadership