ZipRecruiter

Log In

1

Senior Software Engineer Jobs in Newtown, CT (NOW HIRING)

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 ...

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 ...

IQVIA

Sr Software Development Engineer

Greenwich, CT · On-site +1

$137K - $181K/yr

Position Summary We are seeking a Senior Software Development Engineer to design, build, and lead the development of complex U.S. healthcare software systems supporting both payer and provider use ...

IQVIA

Sr Software Development Engineer

Greenwich, CT · On-site +1

$137K - $181K/yr

Position Summary We are seeking a Senior Software Development Engineer to design, build, and lead the development of complex U.S. healthcare software systems supporting both payer and provider use ...

Galon Solution Inc

Principal Software Engineer

Danbury, CT · On-site

$137K - $184K/yr

Principal Software Engineer Location: Danbury, CT POSITION SUMMARY Our client is seeking a ... senior leadership, while also interfacing with manufacturing, customer support, and external ...

previous pagenext page

Showing results 21-40

All JobsSoftware Engineer JobsSenior Software Engineer JobsSenior Software Engineer Jobs in Newtown, CT

Senior Software Engineer information

See Newtown, CT salary details

$77.8K

$147.6K

$197.8K

How much do senior software engineer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for senior software engineer in Newtown, CT is $147,604.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,200.00 and $166,400.00 per year, depending on experience, location, and employer.

What is a senior software engineer?

A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.

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

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.

What are some common challenges senior software engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

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

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared for entry-level to mid-level roles

The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

What does a senior software engineer do?

A senior software engineer designs, develops, and maintains software applications, often leading projects and mentoring junior team members. They analyze requirements, write code, perform testing, and collaborate with cross-functional teams to ensure quality and efficiency. Proficiency in programming languages, problem-solving skills, and experience with development tools are essential for this role.
More about Senior Software Engineer jobs

What are the most commonly searched types of Software Engineer jobs in Newtown, CT?

The most popular types of Software Engineer jobs in Newtown, CT are:

What job categories do people searching Senior Software Engineer jobs in Newtown, CT look for?

The top searched job categories for Senior Software Engineer jobs in Newtown, CT are:

What cities near Newtown, CT are hiring for Senior Software Engineer jobs?

Cities near Newtown, CT with the most Senior Software Engineer job openings:

Senior Software Engineer jobs near you
Infographic showing various Senior Software Engineer job openings in Newtown, CT as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $147,604 per year, or $71 per hour.

Sr. Software Engineer- React Native Mobile

Subway

Shelton, CT • On-site

$119K - $149K/yr

Other

Medical, Life, Retirement

Re-posted 5 hours ago

Subway rating

4.5

Company rating: 4.5 out of 10

Based on 2,071 frontline employees who took The Breakroom Quiz

94th of 107 rated fast food restaurants

Job description

Sr. Software Engineer - React Native Mobile
Ready to build what's next with one of the world's most iconic brands?
Why Join Subway?
At Subway, we are not standing still. We are building.
This is a business focused on what matters most: growing franchisee profitability, strengthening our brand and creating long-term value. The people who thrive here are the ones who want to make a real impact.
You will not just do the work. You will shape it.
We move fast. We think like owners. We make decisions that matter. We hold ourselves to a high standard because what we do directly impacts thousands of franchisees around the world.
If you bring energy, accountability and a bias for action, you will fit right in.
We take the work seriously, but we also know the best results come from teams that support each other, celebrate wins and show up ready to build something better every day.
This is your chance to be part of what's next.
About the Role:
We're looking for an experienced mobile engineer to help build and improve the Subway app on iOS and Android - the app millions of guests use to order food, manage their loyalty rewards, find nearby restaurants, and check out with their preferred payment method.
You'll work in a collaborative product team alongside designers, product managers, and other engineers, shipping features that are fast, reliable, and polished. App performance is a core priority: every change is expected to maintain or improve speed metrics we track rigorously.
TECH AT A GLANCE
Our mobile stack in plain terms:
Framework: React Native (cross-platform iOS & Android) + Expo
Language: TypeScript (strict mode) - strongly typed throughout
State Management: Redux Toolkit for app-wide state; MMKV for fast local storage
Navigation: React Navigation
Payments: Adyen, Apple Pay, Google Pay
Auth: AWS Cognito (token-based login/session management)
Testing: Jest, React Native Testing Library, Maestro (end-to-end)
CI/CD: GitHub Actions, Expo Application Services (EAS), Fastlane
Error Tracking: Sentry
Feature Flags: LaunchDarkly (controls which features are live for which users)
Analytics: Adobe Experience Platform, Quantum Metric
WHAT YOU'LL DO
  • Build and maintain app features across the full stack of the mobile experience - ordering, menu, cart, checkout, payments, loyalty, and store locator.
  • Write clean, well-tested TypeScript following our established coding standards, with automated checks (linting, formatting, architectural boundary rules) running on every commit.
  • Connect the app to backend services and third-party tools: our ordering API, authentication, payment processors, fraud detection, feature flags, and analytics.
  • Work with product managers, designers, and backend engineers to turn requirements into working software - joining sprint planning and reviews, implementing against Figma designs, aligning on API contracts.
  • Review code from teammates and incorporate review feedback on your own pull requests; all PRs go through CI checks and peer review before merging (no direct pushes to main).
  • Debug and fix issues on both iOS and Android using crash reporting tools, native logs, and device/simulator builds.
  • Write and maintain tests - unit, component, performance (we track render and time-to-interactive budgets), and end-to-end flows tested on real devices via BrowserStack.
  • Help keep our build and release pipelines healthy: automated builds, beta testing distributions, and production releases to the App Store and Google Play.
  • Document your work - code comments, architecture decision records, and notes in our project management system.
  • Participate in Agile ceremonies: standups, sprint planning, refinement, and retrospectives.
  • Stay current with the React Native ecosystem and contribute to team-wide improvements, including our ongoing migration to the React Native New Architecture (better performance and native integration).

WHAT WE'RE LOOKING FOR
Required:
  • 6-9 years of professional software engineering experience.
  • Strong commercial experience building cross-platform mobile apps with React Native and TypeScript.
  • Solid understanding of React Native architecture: state management (Redux), navigation, performance optimization, and local storage.
  • Experience calling REST APIs and working with token-based authentication flows.
  • Familiarity with the native side of React Native - iOS (Swift/Objective-C) and Android (Kotlin/Java) builds, native modules - or genuine enthusiasm to learn.
  • Practical experience with mobile testing: unit tests, component tests, and end-to-end flows.
  • Experience shipping apps to the App Store and/or Google Play.
  • Clear communicator who works well in a collaborative, cross-functional team.
  • Bachelor's degree in Computer Science, Engineering, or a related field - or equivalent hands-on experience.

Nice to have:
  • Payment integrations (Adyen, Apple Pay, Google Pay).
  • Feature flag systems (e.g., LaunchDarkly).
  • Mobile analytics or error tracking (Sentry, Adobe Experience Platform, Quantum Metric).
  • CI/CD for mobile: GitHub Actions, Expo EAS, Fastlane, BrowserStack.
  • Internationalization (i18n) and multi-language app support.
  • Privacy and consent frameworks (e.g., OneTrust).
  • SSL/certificate pinning for mobile API security.

HOW WE WORK
We use Agile delivery in two-week sprints, tracked in Azure DevOps. Design specs come from Figma. Architecture decisions and technical docs live alongside the code in the repository. We value code quality, thoughtful review, and incremental improvement over big-bang rewrites.
Pull requests go through automated CI checks (tests, linting, build validation) and at least one peer review before merging. We treat the CI pipeline as a quality gate, not a formality.
What do we offer?
• Insurance Plans (Medical, Life)
• Pension/401K/RSP (country specific)
• Competitive Bonus
• Mobility Allowance
• Tuition Reimbursement
• Company Holidays
• Volunteering time
• And More.....
Compensation: The base pay range for this role is $119,200 - $149,000 annually
Pay within this range will be determined in good faith based on job-related factors, which may include skills, experience, education/training, location, and internal equity.

What Subway employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply