Senior SharePoint Engineer

Endurance Business Services Ltd. (UK); United States; On-site; USD 125,000 - 135,000; Full time

Benefits offered by this job

Medical plans (PPO/HDHP)

Health Savings Account

Dental benefits

Vision benefits

FSAs

Life & AD&D

Job summary

Sompo is seeking a Senior SharePoint Engineer to administer SharePoint Online and on-prem environments, plan tenant-to-tenant migrations, and design enterprise SharePoint/.NET solutions. You will translate business needs into secure, scalable systems using Microsoft 365, SPFx, C#, APIs, and related web tech.

The role focuses on modernizing legacy apps, troubleshooting complex production issues, and providing advanced technical support across IT and business units.

Qualifications

• 8+ years hands-on experience administering and supporting enterprise SharePoint Online and Server environments.
• 3+ years planning and executing SharePoint Online tenant-to-tenant migrations using ShareGate.
• Strong knowledge of SharePoint architecture, governance, information architecture, and Entra ID concepts.
• Experience developing and supporting SharePoint solutions with Power Apps, Power Automate, SPFx, REST APIs, JavaScript, TypeScript, HTML, CSS.
• 5+ years of .NET and C# experience developing, testing, deploying, and modernizing enterprise apps and integrations.
• Proven ability to troubleshoot complex SharePoint/NET solutions and provide end-user support.
• Proficiency with Microsoft 365 administration, PowerShell automation, source control, CI/CD; Azure DevOps experience preferred.

Responsibilities

• Design, develop, and maintain secure, scalable SharePoint, Power Platform, SPFx, .NET, C#, API, and integration solutions.
• Administer and support SharePoint Online and on-premises environments, including site provisioning and hub sites.
• Plan and execute tenant-to-tenant migrations, with assessment, remediation, cutover, and post-migration stabilization.
• Modernize legacy SharePoint and .NET apps and integrations for better performance and security.
• Apply architecture, governance, content management, and change-management standards.
• Troubleshoot production issues and provide advanced end-user support.
• Create migration runbooks, configuration standards, and operational docs.
• Collaborate with stakeholders and teams to deliver releases and coordinate cutovers.

Skills

SharePoint Administration

M365 Administration

Power Platform

SPFx

C# / .NET

REST APIs

JavaScript / TypeScript

CI/CD automation

Azure DevOps

Security & Governance

Tools

ShareGate

Power Apps

Power Automate

SPFx tooling

REST API integration

Azure DevOps

PowerShell

Job description

Job Description

ROLE SUMMARY

The Senior SharePoint Engineer is a hands‑on technical role responsible for administering and supporting SharePoint Online and on‑premises environments, planning and executing tenant-to-tenant migrations, and designing and developing enterprise SharePoint and .NET solutions. Working as part of a collaborative development team, this individual will translate business and user requirements into secure, scalable, and supportable solutions using Microsoft 365, Power Platform, SharePoint Framework (SPFx), .NET, C#, APIs, and related web technologies. The role also includes modernizing legacy applications and integrations, troubleshooting complex production issues, and providing advanced technical and end‑user support.

ROLE RESPONSIBILITIES

• Design, develop, and maintain secure, scalable SharePoint, Power Platform, SPFx, .NET, C#, API, and integration solutions aligned with enterprise standards and business requirements.
• Administer and support SharePoint Online and on‑premises environments, including site provisioning, hub sites, permissions, external sharing, and tenant‑level configuration.
• Plan and execute SharePoint Online tenant‑to‑tenant migrations, including assessment, remediation, cutover, validation, and post‑migration stabilization.
• Modernize and enhance legacy SharePoint and .NET applications and integrations, improving performance, reliability, security, and supportability.
• Apply established architecture, governance, content management, information lifecycle, code quality, testing, deployment, and change‑management standards.
• Troubleshoot complex production issues, perform root‑cause analysis and defect remediation, and provide advanced technical and end‑user support.
• Create and maintain technical designs, migration runbooks, configuration standards, and operational support documentation.
• Collaborate with business stakeholders, project managers, development teams, infrastructure, security, and service desk teams to deliver solutions and coordinate successful releases and cutovers.

TECHNICAL QUALIFICATIONS

• 8+ years of hands‑on experience administering and supporting enterprise SharePoint Online and SharePoint Server environments, including sites, hub sites, permissions, sharing, service configuration, and tenant settings.
• 3+ years of experience planning and executing SharePoint Online tenant‑to‑tenant migrations using tools such as ShareGate, including assessment, mapping, incremental migration, cutover, validation, reporting, and remediation.
• Strong knowledge of SharePoint architecture, governance, information architecture, security, permissions, external sharing, and Microsoft Entra ID identity and cross‑tenant access concepts.
• Experience developing and supporting SharePoint solutions with Power Apps, Power Automate, SPFx, REST APIs, JavaScript, TypeScript, HTML, and CSS.
• 5+ years of .NET and C# experience developing, testing, deploying, maintaining, and modernizing enterprise applications, custom SharePoint components, APIs, and integration services.
• Proven ability to troubleshoot complex SharePoint and .NET solutions and provide advanced end‑user support, including resolving access, performance, workflow, integration, legacy URL, guest access, defect, and dependency issues.
• Proficiency with Microsoft 365 administration, PowerShell automation, source control, code reviews, testing, CI/CD, production deployments, and technical documentation; Azure DevOps experience preferred.

Salary Range: $125,000 - $135,000. Actual compensation for this role will depend on several factors including the cost of living associated with your work location, your qualifications, skills, competencies, and relevant experience.

At Sompo, we recognize that the talent, skills, and commitment of our employees drive our success. This is why we offer competitive, high-quality compensation and benefit programs to eligible employees.

Our compensation program is built on a foundation that promotes a pay‑for‑performance culture, resulting in higher incentive awards, on average, when the Company does well and lower incentive awards when the Company underperforms. The total compensation opportunity for all regular, full‑time employees is a combination of base salary and incentives that gets adjusted upfront based on overall Company performance with final awards based on individual performance.

We continuously evaluate and update our benefit programs to ensure that our plans remain competitive and meet the needs of our employees and their dependents. Below is a summary of our current comprehensive U.S. benefit programs:

• Two medical plans to choose from, including a Traditional PPO & a Consumer Driven Health Plan with a Health Savings account providing a competitive employer contribution.
• Pharmacy benefits with mail order options.
• Dental benefits including orthodontia benefits for adults and children.
• Vision benefits.
• Health Care & Dependent Care Flexible Spending Accounts.
• Company-paid Life & AD&D benef