172+ Operating System Programmer Jobs in Sofia, Bulgaria — Local Employers Hiring July 2026

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Statistical Programmer II

JR141557 Statistical Programmer II ICON plc is a world-leading healthcare intelligence and clinical research organization. We’re proud to foster an inclusive environment driving innovation and excellence, and we welcome you to join us on our mission to shape the future of clinical development. ...

z/OS Technical Support Professional

**Introduction**Join an innovative team focused on delivering and maintaining IBM Z Operating System (z/OS) which runs IBM mainframe computers. We provide industry-leading solutions that make the world run today - planes and trains take off on time, bank transactions complete in the blink of an eye, and the ...

Governance & Digitalization Lead

**We Are Teva** We’re Teva, a leading innovative biopharmaceutical company, enabled by a world-class generics business. Whether it’s innovating in the fields of neuroscience and immunology or delivering high-quality medicine worldwide, we’re dedicated to addressing patients’ needs now and in the future. ...

Customer Reliability Engineer

**Meet the Team** Isovalent, now part of Cisco, is the company founded by the creators of Cilium and eBPF. Cisco Isovalent builds open-source software and enterprise solutions solving networking, security, and observability needs for modern cloud native infrastructure. The flagship technologies, Cilium ...

Global SC Data Management Lead Governance & Change Management Lead

**We Are Teva** We’re Teva, a leading innovative biopharmaceutical company, enabled by a world-class generics business. Whether it’s innovating in the fields of neuroscience and immunology or delivering high-quality medicine worldwide, we’re dedicated to addressing patients’ needs now and in the future. ...

Sr Staff Site Reliability Engineer

**Our Mission** At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re re ...

Sr Staff Site Reliability Engineer

**Our Mission** At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re re ...

Associate Centralized Monitor

**Job Overview** Provide project related assistance to assigned project teams. Ensure all work is conducted in accordance with standard operating procedures, policies, good clinical practices and applicable regulatory requirements. Meeting quality and timeline metrics. **Essential Functions**<b ...

Supply Chain Customer Service Intern

The Supply Chain Customer Service Intern supports the Customer Service team in various operational day-to-day activities related to reporting, orders entry, customers and supply chain management. The intern is in directly cooperation and collaboration with the rest of the team to ensure we provide an excellent c ...

Network Systems Professional

The Network Systems Professional is responsible for analysing and defining business needs and translating them into effective technical solutions. The role involves supporting and evolving a globally distributed network environment across on-premises data centres, cloud platforms, and international offices spann ...

(Senior/Expert) DevOps Engineer for Open Source project Gardener, Landscape Team

**We help the world run better**At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging – but it matters. You'll find a ...

Global Senior Trial Delivery Manager Sponsor Dedicated

Global Trial Delivery Manager services provide for the global coordination of clinical trial management activities for internally managed and/or outsourced trials. These services lead the Study Management Team (SMT) and ensure global clinical operations deliverables progress according to agreed upon timelines an ...

Software Engineer III (Maternity Cover)

**Why UKG:** At UKG, the work you do matters. The code you ship, the decisions you make, and the care you show a customer all add up to real impact. Today, tens of millions of workers start and end their days with our workforce operating platform. Helping people get paid, grow in their careers, and shap ...

Sales Analyst

Sensata Technologies, a global industrial technology company and a leading provider of sensor-rich solutions that create insights for customers, is looking for an EMEA Sales Analyst, to support the EMEA Industrial Solutions Commercial organization. The primary responsibilities of the role wi ...

Director of Engineering (Remote)

About MonetizeMore MonetizeMore is a global pioneer in ad technology, powering ad monetization for over 150,000 websites and apps globally. We combine proprietary technology with sophisticated optimization strategies to secure and maximize publisher revenue. We are a 100% remote, culture-first organization ...

Principal Site Reliability Engineer (Sovereign Cloud)

**Our Mission** At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re re ...

Specialist, Customer Care Invoicing

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** Thermo Fisher Scientific Inc. is the world leader in serving science, with annual revenue exceeding $40 billion. Our mission is to enable our customers to make the world healt ...

Senior QA Auditor GCP Audits

Plan and conduct independent clinical (GCP) audits to assess compliance with regulations, guidelines, and operating procedures. Prepare and distribute reports of findings to supervisor, operations staff, management, and customers. Provide consultation in interpretation ofregulations, guidelines, policies, an ...

Security & Compliance Expert for Gardener and GardenLinux

**We help the world run better**At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging – but it matters. You'll find a ...

Systems Analyst II

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** As part of the Thermo Fisher Scientific team, you’ll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to li ...

Senior Professional, Financial Planning&Governance ExM GP

**We Are Teva** We’re Teva, a leading innovative biopharmaceutical company, enabled by a world-class generics business. Whether it’s innovating in the fields of neuroscience and immunology or delivering high-quality medicine worldwide, we’re dedicated to addressing patients’ needs now and in the future. ...

Workday Systems Analyst 12 months, fixed term

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** **DESCRIPTION:** The selected candidate will become part of Thermo Fisher Scientific's Corporate IT function on the Human Resources Technology Services (HRTS) team su ...

Group Product Manager (Remote)

About MonetizeMore MonetizeMore is a global leader in ad tech, trusted by thousands of web publishers and app developers across the globe. By blending proprietary AI technology with elite optimization techniques, we safeguard and maximize publisher revenue. We are a culture-centric, 100% remote organization ...

Staff Verification Engineer

Staff Verification Engineer Job Description Renesas is looking for pro-active and results-oriented **Staff Verification Engineer** Based out in Sofia or Varna, Bulgaria **Your Role:** + Verification of functional behavior of digital/mixed-signal systems;+ Create ...

Senior Platform Engineer SAP Business Technology Platform Big Data Team

**We help the world run better**At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging – but it matters. You'll find a ...

Software Engineer III Eng

**Why UKG:** At UKG, the work you do matters. The code you ship, the decisions you make, and the care you show customers all contribute to helping millions of people around the world. We build software that helps organizations manage and empower their workforce, and we're committed to continuous innovat ...

CRM / LEAP Specialist

Cargill is a family company committed to providing food and agricultural solutions to nourish the world in a safe, responsible, and sustainable way. We sit at the heart of the supply chain, partnering with producers and customers to source, make and deliver products that are vital for living. By providing custom ...

Tetragon Software Engineering Technical Leader

**Meet the Team** Isovalent, now part of Cisco, is the company founded by the creators of Cilium and eBPF. Cisco Isovalent builds open-source software and enterprise solutions solving networking, security, and observability needs for modern cloud native infrastructure. The flagship technologies, Cilium ...

Storage Defender Support Professional

**Introduction**The IBM Storage Defender Support team delivers technical assistance for enterprise level environments using our data protection and cyber resiliency suite of products. This position involves working with IBM customers remotely to provide how-to assistance and diagnose product failures. Team m ...

New product development quality engineer

The QA Engineer is responsible for making sure all products meet company and industry quality standards. Responsibilities also include designing and implementing tests, debugging and defining corrective actions.# General Responsibilities + Designs, implements and maintains quality assurance protoco ...

National Healthcare Consultant

Join us to move healthcare forward. Are you passionate about advancing healthcare and driving meaningful, system-wide change? Join IQVIA as a **National Healthcare Coordinator** and play a key role in improving cardiovascular care through collaboration, education, and innovation across Bulgaria. ...

Senior HR Admin Specialist

The Senior HR Admin Specialist is part of HR Services team, that provides high level administrative support and excellent service to the respective Sensata locations, incl. HRBPs, managers and employees. The Senior HR Admin Specialist takes part in improvement projects, provides guidance and support to HR admin ...

Electro Mechanical Design Engineer

We are looking for an Electro-Mechanical Design Engineer. The role collaborates with local and global engineering teams to develop high-voltage contactor products that meet demanding customer and system requirements. Responsibilities include the design and optimization of electro-mechanical ...

Technical Project Manager IRT

Technical Project Manager - IRT ICON plc is a world-leading healthcare intelligence and clinical research organization. We’re proud to foster an inclusive environment driving innovation and excellence, and we welcome you to join us on our mission to shape the future of clinical development. **T ...

Project Support Coordinator Intern (6 months fixed term)

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** **Employment Type:** Part-time Internship (0.75 FTE)**Working Hours:** 30 hours per week (6 hours per day, Monday to Friday) Are you a last year university stud ...

CTA 2

Job OverviewPerform daily administrative activities, in conjunction with the Clinical Research Associates and Regulatory and Start-Up teams, to ensure a complete and accurate Trial Master File delivery. Essential Functions• Assist Clinical Research Associates (CRAs) and Regulatory and Start-Up ( ...

Expert DevOps Engineer SAP Cloud Infrastructure Lifecycle Management Team Sofia, BG

**We help the world run better**At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging – but it matters. You'll find a ...

Intern Customer Service Representative

Intern - Customer Service Representative Job Description Our Customer Operations Team is looking for a talented intern in business, marketing, finance or similar field studies to join our team in our Sofia office. The successful candidate will be spending a full academic year with us and will w ...

Specialist, Customer Care Billing

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** Based at the Shared Service Center in Sofia, the Customer Care Billing and Invoicing Department is responsible for maintaining high-quality billing operations, ensuring that c ...

Sr. Compliance Specialist (Artificial Intelligence)

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** As part of the Thermo Fisher Scientific team, you’ll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to li ...

Clinical Data Management Lead, home based

**RESPONSIBILITIES** + Serve as primary point of contact for customer on data management deliverables+ Manage multiple large studies or program of studies (possibly global)+ Provide leadership and senior support to DTLs on multiple large global programs of global studies+ Provide project man ...

Tax Analyst Life Sciences Industry

Labcorp is a leader in diagnostics, drug development and healthcare innovation. Across every role, we harness data and AI to work smarter, move faster and create breakthrough solutions that improve health outcomes for people. With our global scale and deep expertise, you'll do meaningful work, grow your career a ...

Assoc Manager Finance

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** **Join Thermo Fisher Scientific Inc. as a Manager, Accounts Payable in Sofia!** Thermo Fisher Scientific Inc. is the world leader in serving science, with annual reve ...

Supervisor Accounting Query managment (fixed term)

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** **Join Thermo Fisher Scientific Inc. as a Supervisor, Accounts Payable in Sofia!** Thermo Fisher Scientific Inc. is the world leader in serving science, with annual r ...

Manager, Finance (Fixed term)

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** **Join Thermo Fisher Scientific Inc. as a Manager, Accounts Payable in Sofia!** Thermo Fisher Scientific Inc. is the world leader in serving science, with annual reve ...

Medical Writing Manager – Patient Centered Solutions, Strategic & Scientific Research

**Overview** IQVIA provides scientific services spanning clinical trials, real world evidence, and consulting in all areas of the product lifecycle. The Patient Centered Solutions (PCS) Strategic & Scientific Research (SSR) team leads the industry in generating data to ensure that the patient voice is i ...

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    Operating System Programmer Jobs in Sofia Job Search Guide, Trends and Insights