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Senior Software Developer Jobs in Fairfield, CT (NOW HIRING)

NBCUniversal

Sr. Software Engineer

Stamford, CT

$130K - $172K/yr

As our Senior Software Engineer, you'll join the Content Delivery Engineering team (CDE) within NBCUniversal's Global Video Engineering organization in New York City, USA. Your mission is to get ...

NBCUniversal

Sr. Software Engineer

Stamford, CT · On-site

$130K - $172K/yr

As our Senior Software Engineer, you'll join the Content Delivery Engineering team (CDE) within NBCUniversal's Global Video Engineering organization in New York City, USA. Your mission is to get ...

D-Wave Quantum

Senior Software Engineer [604]

New Haven, CT · On-site

$123K - $162K/yr

About the role D-Wave is seeking a Senior Software Engineer to join our Systems Software Engineering team. In this role, you will design and build core platform infrastructure, backend services, and ...

New

Iron River

software developer

Norwalk, CT

A qualified software developer is needed by our organization to assist in the advancement of our ongoing projects. Writing code to create software and modifying it to correct bugs, adapt it to new ...

Collabera

Sr. Embedded Software Engineer

North Haven, CT · On-site

$123K - $161K/yr

This Senior Software Consultant will work within the R&D engineering team to develop and support the next-generation minimally invasive platform. This Senior Software Consultant will develop embedded ...

Interactive Brokers

Sr Software Engineer

Greenwich, CT · On-site

$137K - $181K/yr

Creating software applications or systems to meet user needs while considering functionality, reliability, and scalability. * Utilizing Java programming languages to write clean, maintainable, and ...

Interactive Brokers

Sr. Software Engineer

Greenwich, CT · On-site

$137K - $181K/yr

We are looking for a knowledgeable C++ Developer to work under the general supervision of a team of ... Design, implement and deliver high quality software solutions that conform to architectural ...

Leonardo DRS

Senior Software Verification Engineer

Danbury, CT · Hybrid

$125K - $165K/yr

Job Summary We are seeking a Senior Software Verification Engineer to lead the verification and testing of complex power conversion system product software, from standard components like programmable ...

Interactive Brokers

Sr Software Engineer

Greenwich, CT · On-site

$137K - $181K/yr

We seek a self-driven, self-motivated & self-managed software developer with expertise in Python programming. * An ideal candidate will be able to design/develop solutions based on the requirements ...

Leonardo DRS

Senior Software Verification Engineer

Danbury, CT · On-site

$125K - $165K/yr

Job Summary We are seeking a Senior Software Verification Engineer to lead the verification and testing of complex power conversion system product software, from standard components like programmable ...

Interactive Brokers

Sr Software Engineer

Greenwich, CT · On-site

$137K - $181K/yr

Build software that supports the expansion of IBKR brokerage business into new markets around the ... At least 3 years of Java programming experience. * Python, Perl or similar scripting language ...

Interactive Brokers

Sr Software Engineer

Greenwich, CT · On-site

$100 - $130/hr

All phases of a multi-tier software development cycle (GUIs, databases, mid-tier, batch ... Hands on expertise in server‑side programming in Java/C++ * J2EE experience is a plus What we'd ...

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All JobsSoftware Developer JobsSenior Software Developer JobsSenior Software Developer Jobs in Fairfield, CT

Senior Software Developer information

See Fairfield, CT salary details

$15

$62

$89

How much do senior software developer jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for senior software developer in Fairfield, CT is $62.94, according to ZipRecruiter salary data. Most workers in this role earn between $53.41 and $70.58 per hour, depending on experience, location, and employer.

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

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

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

More about Senior Software Developer jobs

What are the most commonly searched types of Software Developer jobs in Fairfield, CT?

The most popular types of Software Developer jobs in Fairfield, CT are:

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For Senior Software Developer jobs in Fairfield, CT, the most frequently searched job titles are:

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Cities near Fairfield, CT with the most Senior Software Developer job openings:

Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Fairfield, CT as of August 2026, with employment types broken down into 81% Full Time, 16% Part Time, and 3% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $130,920 per year, or $62.9 per hour.

Senior Software Developer - Client Tax

Interactive Brokers

Greenwich, CT • On-site

$61.25 - $80.75/hr

Full-time

Medical, Dental, Vision, Retirement

Re-posted 17 days ago

Job description

This is Hybrid role (3 days in office / 2 day remote)
About Your Team
You will be joining the Client Tax (TaxCust) group within the broader Client Tax Team. While the Client Tax Team covers a wide range of tax-related functions, TaxCust is specifically focused on the development and maintenance of the systems that power our client-facing tax operations. Our core responsibilities include:
  • Maintaining and continuously improving the enterprise brokerage tax form collection and reporting system
  • Maintaining and improving the Oracle data models and XML schemas that underpin our tax data architecture
  • Maintaining and improving the Java-based processing and reporting programs that drive our tax workflows
  • We are a technically focused team operating at the intersection of financial services and enterprise software engineering, building and evolving mission-critical systems that serve clients at scale.

Your Role
As a new member of TaxCust, you will take on meaningful technical ownership from day one. Over your first two years, your responsibilities will include:
  • Maintaining and improving the enterprise brokerage tax form collection and reporting system
  • Maintaining and improving related Oracle data models and XML schemas
  • Maintaining and improving processing and reporting Java programs
  • Extracting technical requirements from business specifications for the tax form collection and reporting system
  • Planning and implementing end-to-end system improvements across the full technology stack
  • Analyzing and resolving production incidents, ensuring system stability and reliability
  • Analyzing resource usage and scalability bottlenecks and implementing targeted improvements
  • Planning and implementing a transition from a bulk processing model to an event-based processing architecture
  • This is a highly impactful role where your contributions will directly shape the reliability, scalability, and evolution of a core enterprise platform.

Must-Have Skills
  • Strong database knowledge and experience, including data modeling and design
  • Experience working with large-scale data repositories
  • Strong object-oriented software development skills, with hands-on experience in Java, Spring, and REST APIs
  • Demonstrated ability to extract technical specifications from business requirements
  • Proven ability to plan, implement, and lead complex software projects from inception to delivery
  • Detail-oriented and quality-focused mindset with a commitment to engineering excellence

Nice-to-Have Skills
  • Familiarity with US and international tax regulations and reporting requirements
  • Knowledge of or experience with IRS tax forms (W-8, W-9) and IRS tax reporting (1099)
  • Knowledge of or experience with CRS (Common Reporting Standard) tax reporting

Company Benefits & Perks
  • Competitive salary, annual performance-based bonus and stock grant
  • Retirement plan 401(k) with competitive company match
  • Excellent health and wellness benefits, including medical, dental, and vision benefits. Company paid medical healthcare premium.
  • Wellness screenings and assessments, health coaches and counseling services through an Employee Assistance Program (EAP)
  • Daily company lunch allowance provided and a fully stocked kitchen with healthy options for breakfast and snacks
  • Corporate events including team outings, dinners, volunteer activities and company sports teams
  • Education reimbursement and learning opportunities

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