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Senior Software Engineer Contract Jobs (NOW HIRING)

PHIflow

Senior Software Engineer

New York, NY · On-site

$134K - $176K/yr

Senior Software Engineer About PHIflow PHIflow is a data and technology company combining ... Named to The National Law Journal's List of Emerging Legal Technologies in 2020, PHIflow's contract ...

PHIflow, LLC

Senior Software Engineer

New York, NY · On-site

$134K - $176K/yr

Senior Software Engineer About PHIflow PHIflow is a data and technology company combining ... Named to The National Law Journal's List of Emerging Legal Technologies in 2020, PHIflow's contract ...

Refinitiv

Senior Software Engineer

Mclean, VA · On-site

$102.20 - $189.80/hr

## Senior Software EngineerApplyremote type: Remotelocations: United States of America, McLean ... Outside of contract work, TRSS Software Engineers contribute to internal innovation by ...

SOSi

Sr. Software Engineer

Indianapolis, IN · On-site

$117K - $154K/yr

SOSi is seeking an experienced Senior Software Engineer to support a mission-critical federal ... May be requested to work evenings and weekends to meet program and contract needs Working at SOSi ...

SOSi

Sr. Software Engineer

Indianapolis, IN · On-site +1

$117K - $154K/yr

SOSi is seeking an experienced Senior Software Engineer to support a mission-critical federal ... May be requested to work evenings and weekends to meet program and contract needs Working at SOSi ...

SOSi

Sr. Software Engineer

Indianapolis, IN · On-site +1

$117K - $154K/yr

SOSi is seeking an experienced Senior Software Engineer to support a mission-critical federal ... May be requested to work evenings and weekends to meet program and contract needs Working at SOSi ...

OneStream Software

Senior Software Engineer I

Birmingham, MI · On-site

$116K - $154K/yr

The Senior Software Engineer designs, develops, and delivers complex features and services within ... Ensure JSON and XML data contracts, schemas, and integrations are well designed, documented, and ...

Navtech, Inc.

Senior Software Engineer

Jersey City, NJ · On-site

$127K - $168K/yr

Senior Software Engineer Location : Jersey City, NJ Duration : 6-12 month contract Need 9+ Years of EXP Candidates Visa & Passport Number Mandatory For H1B Software packaging, deploying, code ...

OneStream Software

Senior Software Engineer I

Rochester, MI · On-site

$112K - $148K/yr

The Senior Software Engineer designs, develops, and delivers complex features and services within ... Ensure JSON and XML data contracts, schemas, and integrations are well designed, documented, and ...

Proven Software

$140K - $170K/yr

Join Proven as a Senior Software Engineer and experience the thrill of working in a dynamic, fully remote but fully engaged environment. You will be part of a passionate team dedicated to crafting ...

THOMSON REUTERS

Senior Software Engineer

Mclean, VA · On-site

$123K - $163K/yr

Outside of contract work, TRSS Software Engineers contribute to internal innovation by ... As a Senior Software Engineer , you will also contribute to a variety of areas including: * Leading ...

Allegion Canada Inc.

$115 - $135/hr

Primarily the Sr. Software Engineer will be responsible for fostering quality design and ... Work with the IT team, business functions, external vendors, and contract resources to deliver ...

CACI

Senior Software Engineer

Sterling, VA · On-site

$121K - $159K/yr

Job Title: Senior Software Engineer Job Category: Engineering Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...

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Senior Software Engineer Contract information

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$75.5K

$143.3K

$192K

How much do senior software engineer contract jobs pay per year?

As of Sep 3, 2026, the average yearly pay for senior software engineer contract in the United States is $143,292.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,500.00 and $161,500.00 per year, depending on experience, location, and employer.

What is a senior software engineer contract?

A Senior Software Engineer Contract refers to a temporary employment agreement where an experienced software engineer is hired for a specific period or project rather than as a permanent employee. These professionals bring advanced technical skills and leadership to design, develop, and maintain complex software systems. Contract roles often focus on delivering specialized expertise, meeting project deadlines, and providing mentorship to junior team members. Compensation and benefits may differ from full-time positions, and contracts can range from a few months to a year or more depending on the project's scope.

What are senior software engineer contract jobs?

Senior software engineer contract jobs involve working on software engineering projects on a temporary contract basis. Your duties and responsibilities in this career vary depending on the needs of each client. In general, you utilize your coding skills and computer program knowledge to create software, applications, or operating systems. You typically work with a software company or information technology organization. As a contractor, you work with clients to assess their needs and create or update software or systems to meet the needs of each client.

What are the key skills and qualifications needed to thrive as a senior software engineer on a contract basis, and why are they important?

To thrive as a Senior Software Engineer on contract, you need advanced programming skills, a strong understanding of software architecture, and several years of experience, often supported by a relevant degree or certifications. Proficiency with development tools like Git, CI/CD systems, cloud platforms (AWS, Azure, or Google Cloud), and familiarity with Agile methodologies are typically expected. Outstanding problem-solving abilities, effective communication, and adaptability are crucial soft skills for collaborating with diverse teams and adjusting to new projects quickly. These skills and qualities enable contract engineers to deliver high-quality solutions efficiently, integrate smoothly into client environments, and meet project goals within tight timelines.

What are the typical challenges faced by senior software engineers working on contract assignments?

Senior Software Engineers on contract often navigate challenges such as quickly acclimating to new codebases and team cultures, managing time effectively across multiple projects, and balancing client expectations with technical feasibility. Since contracts are temporary, there may be less onboarding support and less time to build deep relationships with permanent team members, making communication skills especially important. However, this environment also allows for exposure to diverse technologies and problem-solving scenarios, which can significantly enhance your expertise and professional network.

What is the difference between Senior Software Engineer Contract vs Software Engineer?

AspectSenior Software Engineer ContractSoftware Engineer
CredentialsBachelor's degree in CS or related field, experience, possibly certificationsBachelor's degree in CS or related field, entry to mid-level experience
Work EnvironmentProject-based, temporary contracts, often freelance or consultingFull-time employment, ongoing projects within companies
Employer & Industry UsageTech firms, startups, consulting agenciesTech companies, software development firms, startups
Search & Comparison IntentLooking for contract roles, freelance opportunities, project-based workSeeking permanent positions, career growth, or full-time roles

The main difference between a Senior Software Engineer Contract and a Software Engineer lies in employment type and work setup. Contract roles are temporary, project-focused, and often freelance, while Software Engineers typically work full-time within a company. Both roles require similar technical skills and credentials, but their work arrangements and career paths differ.

More about Senior Software Engineer Contract jobs

What cities are hiring for Senior Software Engineer Contract jobs?

Cities with the most Senior Software Engineer Contract job openings:

What are the most commonly searched types of Senior Software Engineer jobs?

The most popular types of Senior Software Engineer jobs are:

What states have the most Senior Software Engineer Contract jobs?

States with the most job openings for Senior Software Engineer Contract jobs include:

What job categories do people searching Senior Software Engineer Contract jobs look for?

The top searched job categories for Senior Software Engineer Contract jobs are:

Senior Software Engineer Contract jobs near you
Infographic showing various Senior Software Engineer Contract job openings in the United States as of August 2026, with employment types broken down into 89% Full Time, 8% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $143,292 per year, or $68.9 per hour.

Senior Software Engineer

Envision Innovative Solutions

Annapolis Junction, MD • On-site

$217K - $225K/yr

Full-time

Re-posted 6 days ago

Job description

Envision Innovative Solutions
Current Job Openings >> Senior Software Engineer
Senior Software Engineer
Summary
Title: Senior Software Engineer ID: 1064 Department: Mission Intelligence and Cyber Location: Annapolis Junction, Maryland Clearance Requirements: TS/SCI with Full Scope Polygraph
Description

At Envision Innovative Solutions, we're more than a technology company-we're a team of innovators, problem-solvers, and mission-focused professionals dedicated to making a meaningful impact. Since 2006, we have delivered innovative technology, engineering, cybersecurity, and mission support solutions to government and commercial clients. Our people are our greatest strength. We foster a collaborative, and people-first culture where creativity is encouraged, professional growth is supported, and every team member has the opportunity to make a difference
Envision is seeking a motivated, customer-focused Senior Software Engineer to join our team in Annapolis Junction, Maryland. This is onsite position.

Primary Responsibilities:

  • Analyze user requirements to derive software design and performance requirements
  • Debug existing software and correct defects
  • Provide recommendations for improving documentation and software development process standards
  •  Design and code new software or modify existing software to add new features
  •  Integrate existing software into new or modified systems or operating environments
  • Develop simple data queries for existing or proposed databases or data repositories
  • Write or review software and system documentation
  • Design or implement complex database or data repository interfaces/queries
  • Develop or implement algorithms to meet or exceed system performance and functional standards
  • Assist with developing and executing test procedures for software components
  • Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem areas
  • Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design
  • Design or implement complex algorithms requiring adherence to strict timing, system resource, or interface constraints:

Required Skills:

  • Fourteen (14) years' software engineering experience 
  • Bachelor's degree in computer science or related discipline. Four (4) years of additional experience may be substituted for a bachelor's degree
  • Common software development tools such as Git, Kira, Confluence and other Atlassian Products
  • Experience with Linux Command Line
  • Recent experience with Java or similar programming language
  • Basic understanding of Container Technologies such as Docker
  • Basic understanding of web development and APIs
Desired Skills:
  • Experience with Spring Boot
  • Experience with JavaScript, ReactJS specifically
  • Experience with Apache Kafka
  • Experience with Apache Nifi
  • Understanding of Docker/Docker Compose
  • Experience with build tools, such as Maven
  • Experience with SQL databases

Security Clearance Requirement: Current/Active TS/SCI with Full Scope Polygraph
The projected compensation range for this position is $217,000.00-$225,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories.
Envision Innovative Solutions is an equal-opportunity employer. All Qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, veteran's status, age, disability or any other basis prohibited by law.

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