Senior Software Engineer – C#

GBG Plc

Senior Software Engineer developing and maintaining features and improvements for Windows SDKs. Collaborating in a hybrid environment to support the Documents & Biometrics product group.

Posted 5/6/2026full-timeManchester • New Hampshire • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

AWS.NET

About the role

Key responsibilities & impact

Design, implement, and maintain complex features and fixes in C#/.NET Windows SDKs and supporting desktop components
Own technical solutions end-to-end, from design through implementation, testing, and release
Improve architecture, code quality, performance, and diagnosability for Windows SDK deliverables
Refactor and modernise existing code to improve testability and long-term sustainability
Debug and resolve complex Windows issues using logs, runtime behaviour, and deep system analysis
Build and evolve automation including unit and integration tests
Contribute across the delivery pipeline where needed, covering build automation, packaging, deployment, and validation workflows
Maintain compatibility across the range of scanning devices and hardware platforms our software supports
Produce and maintain clear technical documentation to support knowledge sharing and onboarding
Experiment with and integrate AI tools into the team's daily workflows to accelerate delivery and quality
Collaborate closely with engineers across the Desktop team and wider Documents & Biometrics group
Contribute actively to agile ceremonies including sprint planning, stand-ups, and retrospectives

Requirements

What you’ll need

Strong professional experience developing Windows-delivered SDKs and/or desktop components using C# and .NET Framework
Proven track record of owning and delivering complex features in production codebases
Strong software design, debugging, and problem-solving skills
Proficiency with Git/GitHub and collaborative development workflows
Experience modernising older codebases to current technologies and standards
Experience improving testability, reliability, and automation in Windows-based products
Comfortable contributing across the delivery pipeline when needed, covering build, packaging, deployment, and validation
Desirable Skills
Document imaging fundamentals for scanning and OCR
Proven use of AI tools embedded systematically into day-to-day development, using them to improve quality, accelerate delivery, or reduce toil, not just as an occasional aid
C++ experience
AWS experience (used for development team infrastructure)
Experience working with device SDKs, peripherals, or scanner hardware
Familiarity with CI/CD systems for Windows builds and validation
InstallShield experience, particularly building and maintaining Windows SDK installers

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account GBG Plc Website LinkedIn All Job Openings 1001 - 5000 employees Founded 1996 🔐 Security 💸 Finance 🎮 Gaming Security
Finance
Gaming GBG Plc is a global leader in identity verification and fraud prevention solutions. The company offers a range of services including fast and accurate identity data verification, biometric authentication, and fraud prevention to help businesses onboard customers securely and with confidence. GBG serves various industries, including financial services, retail, gaming, and insurance, providing powerful insights from millions of global customer interactions. With over 30 years of experience, GBG is trusted by thousands of businesses worldwide to deliver multi-layered protection and optimize customer onboarding processes. Their solutions aim to build trust, protect businesses from fraud, and ensure smooth and secure customer transactions. Senior Software Engineer – C# 🔥 2 hours ago 🏢🏡 Manchester – Hybrid ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer AWS .NET Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Design, implement, and maintain complex features and fixes in C#/.NET Windows SDKs and supporting desktop components
Own technical solutions end-to-end, from design through implementation, testing, and release
Improve architecture, code quality, performance, and diagnosability for Windows SDK deliverables
Refactor and modernise existing code to improve testability and long-term sustainability
Debug and resolve complex Windows issues using logs, runtime behaviour, and deep system analysis
Build and evolve automation including unit and integration tests
Contribute across the delivery pipeline where needed, covering build automation, packaging, deployment, and validation workflows
Maintain compatibility across the range of scanning devices and hardware platforms our software supports
Produce and maintain clear technical documentation to support knowledge sharing and onboarding
Experiment with and integrate AI tools into the team's daily workflows to accelerate delivery and quality
Collaborate closely with engineers across the Desktop team and wider Documents & Biometrics group
Contribute actively to agile ceremonies including sprint planning, stand-ups, and retrospectives 🎯 Requirements
Strong professional experience developing Windows-delivered SDKs and/or desktop components using C# and .NET Framework
Proven track record of owning and delivering complex features in production codebases
Strong software design, debugging, and problem-solving skills
Proficiency with Git/GitHub and collaborative development workflows
Experience modernising older codebases to current technologies and standards
Experience improving testability, reliability, and automation in Windows-based products
Comfortable contributing across the delivery pipeline when needed, covering build, packaging, deployment, and validation
Desirable Skills
Document imaging fundamentals for scanning and OCR
Proven use of AI tools embedded systematically into day-to-day development, using them to improve quality, accelerate delivery, or reduce toil, not just as an occasional aid
C++ experience
AWS experience (used for development team infrastructure)
Experience working with device SDKs, peripherals, or scanner hardware
Familiarity with CI/CD systems for Windows builds and validation
InstallShield experience, particularly building and maintaining Windows SDK installers Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Lead Engineer, Grid Operations Technology 🔥 14 hours ago Eversource Energy 10,000+ employees Website LinkedIn All Job Openings Lead Engineer overseeing grid modernization technology projects and managing multi-disciplinary teams across multiple locations in the United States. Requires strong technical knowledge in power system engineering and significant experience in the electrical utility industry. 🏢🏡 Manchester – Hybrid 💵 $145.7k - $161.9k / year 💰 $89M Grant on 2024-08 ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Senior Engineer – Telecommunications 🕒 April 14 Eversource Energy 10,000+ employees Website LinkedIn All Job Openings Senior Engineer handling fiber optic network design and execution at Eversource Energy. Collaborating on projects involving complex electrical systems and telecommunications infrastructure. 🏢🏡 Manchester – Hybrid 💵 $129.4k - $143.8k / year 💰 $89M Grant on 2024-08 ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Switching Senior Engineer, Transmission System Planning 🕒 April 8 Eversource Energy 10,000+ employees Website LinkedIn All Job Openings Senior Engineer in electric transmission system planning, leading large-scale integration studies for clean energy and large load connections. Providing technical expertise for utility-scale projects across multiple states. 🏢🏡 Manchester – Hybrid 💵 $129.4k - $143.8k / year 💰 $89M Grant on 2024-08 ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor Python Senior Engineer, Substation Engineering 🕒 February 3 Eversource Energy 10,000+ employees Website LinkedIn All Job Openings Senior Engineer responsible for overseeing engineering design and project assignments for electric distribution substations. Requires extensive experience in engineering and substation design standards. 🏢🏡 Manchester – Hybrid 💵 $129.4k - $143.8k / year 💰 $89M Grant on 2024-08 ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer 🦅 H1B Visa Sponsor View More Full-stack Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Hard Skills & Tools

C#.NET FrameworkWindows SDKsdebuggingsoftware designproblem-solvingtestabilityautomationC++document imaging

Soft Skills

collaborationcommunicationagile methodologiesproblem-solvingknowledge sharingadaptabilityownershipcreativityattention to detailcritical thinking