Kelly Services logo

Senior C#/.NET Engineer // Boston Hybrid

Kelly Services

Boston, MA · HybridFull-time$120–140K/yrSeen todaySeen in employer's feed today

Most applications go out cold — see where you stand first. No sign-up to start.

You apply on the employer's site, with no Olive account needed.

Watch jobs like this.

Don't just apply. Show up ready.

Olive works from this exact posting.

At a glance

Compensation
$120–140K/yr
Location
Boston, MAHybrid
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Job overview

A global software solutions provider is seeking a Senior Software Engineer for a modernization initiative supporting a major postal operator. The engineer will help build a Product Journey Engine for configurable, auditable customer transaction workflows and contribute across the software development lifecycle, from architecture and design through implementation and deployment. The role is hybrid, with two days per week in downtown Boston.

Skills & qualifications

RequiredNice to have

Skills

C#/.NET DevelopmentSoftware Design PatternsSystem ArchitectureDistributed ApplicationsTypeScriptReactJavaScriptTroubleshootingApplication Performance OptimizationAgile DevelopmentCross-Functional Collaboration

Qualifications

6+ Years Software Engineering Experience

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match
Paid Time Off

Full job description

$120000 - $140000

This role is looking for someone with strong full-stack development experience with C#/.NET. The position is hybrid, 2 days per week in downtown Boston. Thanks for applying!

A global provider of software solutions for postal and delivery organizations is seeking a Senior Software Engineer to join a high-impact product team building the next generation of retail, delivery, and transaction processing platforms. This role is focused on a large-scale modernization initiative supporting one of the world's largest postal operators, where engineers are developing a sophisticated Product Journey Engine that powers complex customer transactions through configurable, auditable workflows. The ideal candidate will bring strong experience with C#/.NET and experience building scalable, reliable software used in mission-critical environments.

This is an opportunity to help shape the core architecture behind a modern platform that supports millions of transactions while transforming how postal services operate. Engineers on this team are involved throughout the entire software development lifecycle, from architecture and design through implementation and deployment. The role is ideal for someone who enjoys solving complex technical problems, taking ownership of systems end-to-end, and collaborating closely with product and engineering stakeholders to build highly available, enterprise-grade applications. Candidates looking for meaningful technical challenges and significant product impact will thrive in this environment. Required Skills & Experience

  • 6+ years of professional software engineering experience

  • Strong hands-on development experience with C#/.NET in your most recent position on your resume

  • Strong understanding of software design patterns, system architecture, and distributed applications

  • Experience with TypeScript, React, or JavaScript is a big plus

  • Ability to troubleshoot complex technical issues and optimize application performance

  • Experience working within Agile development environments and collaborating across cross-functional teams

The Offer

  • Competitive base salary

  • Comprehensive medical, dental, and vision coverage

  • 401(k) with company contribution/match

  • Generous PTO and company holidays

#LI-ME1

Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP’s Employment Accommodation policy. Applicants need to make their needs known in advance.

How this job compares

Set against the 41,998 open Software Engineer jobs on Olive Jobs, counted November 8, 2026.

Pay
  • This posting$120–140K/yr
  • Massachusetts median$140–210K/yr1,002 salary ranges
  • US median$135–219K/yr33,401 salary ranges

This range's midpoint, $130K, is 24% below the Massachusetts median midpoint ($172K) — in the lowest quarter of Software Engineer salary ranges in Massachusetts.

Openings
Olive Jobs lists 1,166 open Software Engineer jobs in Massachusetts and 41,998 across the US. 8% of them nationwide are listed as remote or flexible.
Hiring the most in Massachusetts
Experience
This posting asks for at least 6 years of experience; Software Engineer postings that state a minimum ask for 5 years at the median (34,471 postings).
Education
13,247 of the 41,998 open Software Engineer jobs (32%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 8, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

Prepare for this role

You've read the whole posting — now see how you match it.