Software Developer Summer (TypeScript) Intern 2026

Posted Yesterday
Be an Early Applicant
Wakefield, MA
In-Office
25-25 Hourly
Internship
Financial Services
The Role
This internship involves implementing new features for software applications using TypeScript, Node.js, and React.js while gaining hands-on experience in a professional environment.
Summary Generated by Built In
Effective Date:  variable, minimum 3 months to 6 months commitment preferred                                        
Location Note: Hybrid work environment with office in Wakefield, MA. Must be available for In-office two to four days per month and at maximum three multi day events spring/summer/fall.
The Purpose of Your Role:
We are looking for rising students who would like to gain hands-on experience in a fast-paced software development environment. Our interns aren’t getting coffee or taking notes; they become a true part of the team and of the organization as a whole. You will learn about the company and its culture and learn how to build and maintain software. Additionally, you will gain valuable experience working in a professional business environment, being integrated in the team, allowing you to build skills, get feedback on your performance, and gain advice and insights for your future career.
What you'll bring to Sentinel:
We are looking for someone who has a growth mindset and likes to take on challenges. You should feel comfortable jumping into projects and tasks, and like helping to develop solutions.
What you’ll be responsible for:
  • Implement frontend and/or backend new features for existing applications (TypeScript, nodejs, reactjs)
  • Learn or solidify knowledge in required technologies
Preferred qualifications:
  • Must be working toward a Bachelor’s or Masters degree (preferably in Computer Science or related fields)
  • Strong listening and communication skills
  • Knowledge with TypeScript, React, agile development
  • Pay rate for this position is $25/hour

What you’ll be part of:
Joining our company means becoming part of something special. We're driven by a mission to excel in our industry and within our team, supported by people who truly care about our organization.
Sentinel was recently recognized by The Boston Globe as a Top Place to Work in 2020, 2023 and 2025. In 2021, 2022, 2023 and 2024, Sentinel earned a Top Workplace USA Award from Energage.
At Sentinel, we welcome people from diverse experiences, backgrounds, and perspectives – and we wouldn’t have it any other way. So even if you don’t meet every single requirement, please consider applying if you like what you see. Our priority is to find talented individuals who enrich our team culture, contribute with enthusiasm, and are passionate about what they do.
Sentinel is an equal opportunity employer and welcomes everyone to our team. If you need reasonable adjustments at any point in the application or interview process, please let us know.
Some of our Benefits:
  • PTO (vacation, sick, personal time bank)
  • FTO (Flexible time off for vacation, sick, and personal time) after 2 years of service
  • 12 Paid Holidays (10 stated and 2 floating holidays)
  • 2 Community Volunteer Days
  • 5 Summer Half Days
  • Medical, Dental, Vision
  • Life Insurance
  • LTD & STD
  • Retirement Plan with 4% Employer Match
  • Parental Leave
See What We Stand For: https://www.sentinelgroup.com/About-Us/Join-Our-Team
Who we are:
Sentinel Group proudly serves nearly 5,000 clients throughout the U.S. For 35+ years, we’ve remained devoted to positively impacting the lives of our people, our clients and our communities. With a 9-year average associate tenure among our 265 professionals, our team’s commitment to excellent service has positioned Sentinel as the only provider who makes benefits EASY: easy for your people; easy for your business; and easy for you.
Our ultimate goal is to help companies and their employees prepare for their future health, wealth and retirement needs. Whether it’s through retirement plans, group health insurance, reimbursement accounts or financial planning, we engineer simple solutions and continuously strive to make them better. Our in-house experts – and their commitment to excellence – define who we are.
Sentinel is also one of the largest employee benefits firms in Massachusetts (Boston Business Journal) and was named a 2022 Retirement Plan Adviser of the Year in the Mentorship category (PLANADVISER Magazine).
 

Top Skills

Node.js
React
Typescript
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
Wakefield, MA
285 Employees
Year Founded: 1987

What We Do

Sentinel Group is a single resource to manage all employee benefits. Founded in 1987, we have grown to be the second largest benefit consulting and administration practice in Massachusetts.

Our services include:

WEALTH PLANNING SERVICES
> Investment Advisory Services
> Retirement Plan Administration
> Open Architecture Retirement Plan Recordkeeping
> Defined Benefit & Cash Balance Plan Services
> Actuarial Consulting
> Employee Stock Ownership Plans

LIFE PLANNING SERVICES
> Group Benefits Brokerage
> Flexible Spending Account Administration
> Health Reimbursement Plan Administration
> Health Savings Accounts
> Transportation Plan Administration
> COBRA Administration

At Sentinel Benefits & Financial Group, we have been putting our clients first for more than two decades. In fact, building meaningful relationships with our clients to help them achieve their goals is the work we do.

What differentiates us from competitors is how we approach our work. The business of providing employee benefits and financial services is not unique. There are many choices. However, brand and experience alone do not always translate to the best solution.

We recognize that the only way to truly help a client is to know them first. We take the time to listen before we make recommendations. Through our interactive consulting process, we bring true custom solutions that deliver value to our clients.

Similar Jobs

Block Logo Block

Program Manager

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
In-Office
Boston, MA, USA
12000 Employees
76K-152K Annually
Remote or Hybrid
United States
1750 Employees

CrowdStrike Logo CrowdStrike

Global Partner Services Manager (Remote)

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Remote or Hybrid
3 Locations
10000 Employees
105K-163K Annually

CrowdStrike Logo CrowdStrike

Business Operations Director, IT GTM (Remote)

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Remote or Hybrid
USA
10000 Employees
170K-260K Annually

Similar Companies Hiring

Amplify Platform Thumbnail
Fintech • Financial Services • Consulting • Cloud • Business Intelligence • Big Data Analytics
Scottsdale, AZ
62 Employees
Rain Thumbnail
Web3 • Payments • Infrastructure as a Service (IaaS) • Fintech • Financial Services • Cryptocurrency • Blockchain
New York, NY
70 Employees
Granted Thumbnail
Mobile • Insurance • Healthtech • Financial Services • Artificial Intelligence
New York, New York
23 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account