Senior Software Engineer (.NET / Embedded)

EPAM Systems; Poland; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Health insurance

Multisport

Shopping vouchers

Employee Stock Purchase Plan

Referral bonuses

Job summary

EPAM Systems, Inc. seeks a Senior Software Engineer (.NET / Embedded) to join our team on the control software of a high-precision optical metrology tool used in semiconductor manufacturing.

You will design, develop, test, and maintain the tool software in C# and .NET, and drive modularisation of a mature codebase without destabilising production systems. You will build robust concurrent code with multi-threading and parallelism, apply TDD and automated testing, review code, and mentor mid-level

Qualifications

• 3+ years of hands-on senior-level C#/.NET on production systems.
• Experience with hardware-related development and device interfaces.
• Strong knowledge of OO design, SOLID, design patterns, and Clean Code.
• Proficient in Test-Driven Development and automated test suites.

Responsibilities

• Design, develop, test, and maintain tool control software in C# and .NET.
• Drive modularisation of a mature codebase without destabilising production system.

Skills

C#

.NET

Multi-threading

TDD

Code reviews

Mentoring

Hardware integration

OO design

SOLID

Design patterns

Clean Code

Automated testing

Real-time systems

Device drivers

Job description

We are seeking a Senior Software Engineer (.NET / Embedded) to work on the control software of a high-precision optical metrology tool used in semiconductor manufacturing.ResponsibilitiesDesign, develop, test, and maintain tool control software in C# and .NETDrive modularisation of a mature codebase without destabilizing a production systemBuild robust concurrent code, including multi-threading, locking and interlocking, and parallelism in .NETApply TDD and strengthen automated testing, including tests that touch real hardwareConduct code reviewsMentor and coach mid-level developersTroubleshoot complex issues across the software and hardware boundaryRequirementsProficiency in C# and .NET with 3+ years of hands-on, senior-level experience on production systemsBackground in hardware-related development environments — code that has controlled, driven, or read from physical equipmentKnowledge of object-oriented design, SOLID and design patterns, along with Clean Code principlesExpertise in Test-Driven Development and ownership of automated test suitesSkills in multi-threading, locking/interlocking, and parallelism in .NETExperience refactoring and modularising a long-lived legacy codebaseFamiliarity with mentoring and conducting code reviewsEnglish proficiency at B2 level or aboveNice to haveUnderstanding of real-time systems and deterministic timingCompetency in hardware integration such as motion control, sensors and actuators, or device drivers and instrument interfacesQualifications in optical sensor data processing, including spectroscopy, interferometry, or imaging and signal processingDomain background in semiconductor, metrology, test and measurement, or precision instrumentation, industrial automation, or medical devicesGerman language skillsWe offerWe gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusivelyEPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.