Junior Fullstack Software Engineer

Sentinel Group; Wakefield (MA); Hybrid; USD 88,000 - 93,000; Full time

Benefits offered by this job

PTO

12 Paid Holidays

Medical, Dental, Vision

Retirement Plan

Job summary

Sentinel Group in Wakefield, MA is seeking a Junior Software Engineer to join the development team building, maintaining, and modernizing homegrown apps. The role emphasizes requirement analysis, documentation, testing, and collaborative releases across tech stacks while embracing AI-assisted development tools.

You will work in a hybrid environment, one in-office day every other week, with additional trainings and workshops as needed.

Qualifications

• 1–3 years of experience building or supporting software applications through professional work, internships, coursework, or personal projects.
• Experience developing with Python and familiarity with TypeScript and React.
• Working knowledge of SQL and relational databases.
• Familiarity with REST APIs, automated testing, version control, and CI/CD practices.
• Exposure to Azure DevOps, Azure Pipelines, Azure Repos, Terraform, or Airflow.
• Understanding of secure, maintainable, testable software design and basic application security principles.
• Experience working in an Agile or collaborative, cross-functional development environment.
• Ability to troubleshoot existing systems, understand legacy code, and contribute to incremental modernization.
• Interest in using AI-assisted development tools responsibly to improve software quality and developer productivity.
• Strong written and verbal communication skills, with a willingness to ask questions, receive feedback, and continue learning.

Responsibilities

• Work with Business Analysts and peers to build software you are proud of.
• Help converting legacy applications into web based applications.
• Build secure and well-defined API’s.
• Build automation with Airflow.
• Utilize Azure DevOps, Azure Pipelines, and Azure Repos and upgrade DevOps processes within Sentinel.

Skills

Python

TypeScript

React

SQL

Terraform

Go

AI

Agile

REST APIs

CI/CD

Git

Azure DevOps

Airflow

Tools

Azure DevOps

Azure Pipelines

Azure Repos

Airflow

Terraform

Job description

Location Note:

This a hybrid role for ourWakefield,MA office(In-office one day every other week, plusadditionalin-person trainings and workshops as needed)

The Purpose of Your Role:

The Junior Software Engineer is part of the development team, which has the responsibility for building,maintaining, enhancing and integrating home built custom applications using different technology stacksand connected systems. A junior engineer at Sentinel learns and conducts requirement analysis,documents technical specifications, test plans, writes, reviews, debugs code and performs releases. Thisrole handles increasingly complex issues and problems over time or collaborates more complicated issueswith higher-level staff.

What you’ll bring to Sentinel:

• Comprehend the need to build secure, maintainable and testable software systems.
• Growth mindset and willingness to learn.
• Experience in agile environments.
• Programming expertise in Python.
• Programming knowledge with Typescript, ReactJs, SQL, Terraform and ideally Go
• Knowledge how AI can help us build better applications

What you’ll be responsible for:

• Work with Business Analysts and peers to build software you are proud of.
• Help converting legacy applications into web based applications.
• Build secure and well-defined API’s.
• Build automation with Airflow.
• Utilize Azure DevOps, Azure Pipelines, and Azure Repos and upgrade DevOps processes within Sentinel. About you:

  We are looking for smart and innovative thinkers to drive our business and clients forward—someone with self-motivation, drive, determination, and the strength of character to challenge the status quo. We strive to surround ourselves with team members who are proud of their work and look for people who are willing to embrace change.

What you need to have:

Preferred qualifications:

• 1–3 years of experience building or supporting software applications through professional work, internships, coursework, or personal projects.
• Experience developing with Python and familiarity with TypeScript and React.
• Working knowledge of SQL and relational databases.
• Familiarity with REST APIs, automated testing, version control, and CI/CD practices.
• Exposure to Azure DevOps, Azure Pipelines, Azure Repos, Terraform, or Airflow.
• Understanding of secure, maintainable, testable software design and basic application security principles.
• Experience working in an Agile or collaborative, cross-functional development environment.
• Ability to troubleshoot existing systems, understand legacy code, and contribute to incremental modernization.
• Interest in using AI-assisted development tools responsibly to improve software quality and developer productivity.
• Strong written and verbal communication skills, with a willingness to ask questions, receive feedback, and continue learning.

Salary Range: $88,000-$93,000

At Sentinel, compensation is calibrated to your geographic location to reflect local market conditions; the posted salary range may vary based on where you live.

Nice to haves:

• Experience with git, build pipelines, auth, testing

Whatyou’llbe part of:

Joining our company means becoming part of something special.We’redriven by a mission to excel in our industry and within our team, supported by people whotruly careabout our organization.

Sentinel was recently recognized by The Boston Globe as a Top Place to Work in 2020 and 2023. In 2021, 2022,2023and 2024, Sentinel earned a Top Workplace USA Award fromEnergage.

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 servesnearly 5,000clients throughout the U.S. For 35+ years,we’veremained devoted to positivelyimpactingthe lives of our people, ourclientsand 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.

Ourultimate goalis to help companies and their employees prepare for their future health,wealthand retirement needs. Whetherit’sthrough retirement plans, group health insurance, reimbursementaccountsor 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).