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Mid Backend Developer Jobs in Massachusetts (NOW HIRING)

ICONSTAFF

Backend Engineer/FullStack

Cambridge, MA · On-site +1

$140K - $220K/yr

Full-Stack Engineer | AI/ML Start-up | Competitive Salary + Equity We're partnering with a fast ... They serve a growing base of mid-market clients and are expanding their platform capabilities. The ...

eNett

Senior Backend Engineer - AI Platform

Boston, MA · On-site +1

$133K - $175K/yr

Conduct code reviews (comment, approve, seek revisions, merge), mentor junior and mid-level ... Proficiency in backend development, with expertise in Java or C#, frameworks like SpringBoot ...

WEX

Senior Backend Engineer - AI Platform

Boston, MA · On-site +1

$133K - $175K/yr

Conduct code reviews (comment, approve, seek revisions, merge), mentor junior and mid-level ... Proficiency in backend development, with expertise in Java or C#, frameworks like SpringBoot ...

Donato Technologies, Inc

Performance Engineer

Boston, MA · On-site

$56/hr

Designing and implementing backend services, microservices, and APIs using Java * Supporting and ... We work closely with small to mid-sized organizations to provide flexible, high-quality services ...

Motion Recruitment

Senior Data Platform Engineer

Boston, MA · On-site

$115K - $156K/yr

Experience acting as a tech lead mentoring mid-level engineers. What You Will Be Doing Tech Breakdown * 35% Core Platform Infrastructure & Architecture * 30% Data Pipelines & Backend Engineering * 20 ...

Klaviyo

Sr. Lead AI Engineer

Boston, MA · On-site

You'll own architecture and execution for complex, distributed backend systems; guide other ... Coach senior and mid-level engineers through design, implementation, and operational best practices ...

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All JobsMid Backend Developer JobsMid Backend Developer Jobs in Massachusetts

Mid Backend Developer information

What is the difference between Mid Backend Developer vs Backend Developer?

AspectMid Backend DeveloperBackend Developer
Experience LevelMid-level (2-4 years)Entry to Mid-level (0-3 years)
Skills & CertificationsProficiency in server-side languages, databases, APIs; often familiar with cloud servicesBasic to intermediate backend skills, some familiarity with similar technologies
Work EnvironmentCollaborates on complex projects, often in teams with frontend and DevOpsWorks on foundational backend tasks, may be part of smaller teams or solo projects
Industry UsageCommon in tech companies, startups, and enterprise environmentsWidespread across various industries, including tech, e-commerce, and finance

The Mid Backend Developer typically has more experience and handles more complex backend systems compared to a Backend Developer. While both roles require similar foundational skills, the mid-level position involves greater responsibility, problem-solving, and collaboration on larger projects.

What is a mid backend developer?

Mid Backend Developers are software engineers with intermediate experience who focus on building, maintaining, and optimizing the server-side components of web or mobile applications. They typically work with databases, APIs, server logic, and integration with front-end systems. Mid-level developers have a solid understanding of programming languages such as Java, Python, Node.js, or Ruby and are expected to contribute to code reviews, troubleshoot issues, and implement new features under minimal supervision. Their role bridges the gap between junior developers, who need more guidance, and senior developers, who handle architecture and high-level decisions.

What are the key skills and qualifications needed to thrive as a mid backend developer, and why are they important?

To excel as a Mid Backend Developer, you need strong programming skills in languages such as Java, Python, or Node.js, along with a solid understanding of databases and API design, typically backed by a bachelor’s degree in computer science or related field. Familiarity with tools and systems like Git, RESTful APIs, Docker, and cloud platforms (e.g., AWS, Azure) is usually required. Problem-solving abilities, effective communication, and teamwork are crucial soft skills that set high performers apart. These competencies ensure efficient development, maintainability, and seamless integration of backend services in dynamic technical environments.

What are some typical challenges a mid backend developer might face when integrating new technologies into existing systems?

As a Mid Backend Developer, one common challenge is ensuring that new technologies or frameworks integrate smoothly with legacy systems without disrupting current operations. This often involves understanding both the old and new codebases, data migration, and dealing with compatibility issues. Collaborating closely with frontend developers, DevOps, and QA teams is essential to address potential bottlenecks and maintain performance. Additionally, thorough testing and documentation are crucial to ensure long-term stability and maintainability.
What are popular job titles related to Mid Backend Developer jobs in Massachusetts? For Mid Backend Developer jobs in Massachusetts, the most frequently searched job titles are:
What job categories do people searching Mid Backend Developer jobs in Massachusetts look for? The top searched job categories for Mid Backend Developer jobs in Massachusetts are:
What cities in Massachusetts are hiring for Mid Backend Developer jobs? Cities in Massachusetts with the most Mid Backend Developer job openings:
Mid Backend Developer jobs near you
Infographic showing various Mid Backend Developer job openings in Massachusetts as of July 2026, with employment types broken down into 76% Full Time, 15% Part Time, 1% Temporary, and 8% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Backend Engineer/FullStack

ICONSTAFF

Cambridge, MA • On-site, Remote

$140K - $220K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 14 days ago

Job description

Full-Stack Engineer | AI/ML Start-up | Competitive Salary + Equity


We're partnering with a fast-growing technology start-up that's building intelligent, adaptive systems powered by real-time machine learning. They're looking for a talented Full-Stack Engineer to join their team and help scale their platform.


About Our Client


Our client has developed a sophisticated learning engine that processes live user behavior data to optimize digital experiences. They serve a growing base of mid-market clients and are expanding their platform capabilities. The company is well-funded, technically strong, and positioned for significant growth.


Why This Role Stands Out


This isn't your typical full-stack position. You'll work at the intersection of engineering and applied ML, building systems that process real-time data and deliver measurable impact. You'll have genuine ownership, ship meaningful features, and grow alongside a talented team solving complex technical challenges.


The Opportunity

  • Build and maintain APIs and data pipelines connecting real-time behavioral data to ML systems
  • Ship features to production that directly impact customer outcomes
  • Collaborate with cross-functional teams across engineering, product, and data
  • Contribute to development infrastructure including CI/CD, testing frameworks, and code quality
  • Debug production systems using modern observability tools (logs, metrics, traces)
  • Increase your technical ownership and responsibilities as you develop expertise

What You'll Need

  • Bachelor's degree in Computer Science, Engineering, Mathematics, or related field (or equivalent experience)
  • 1–5 years building and supporting production web applications
  • Strong backend or full-stack fundamentals: APIs, databases, asynchronous processing, testing
  • Production experience with Python and SQL
  • Familiarity with Git and CI/CD workflows
  • Excellent problem-solving and analytical skills
  • Interest in applied ML or LLM-based systems (production experience is a bonus, not required)

Nice to Have

  • Exposure to LLM-driven systems (prompt management, caching, streaming)
  • Experience with Docker; Kubernetes knowledge is a plus
  • Passion for exploring new technologies and continuous learning

Compensation & Benefits

  • Competitive base salary (commensurate with experience)
  • Meaningful equity stake in a growing start-up
  • Full health benefits: medical, dental, vision
  • 401(k) with employer matching
  • Remote work stipend
  • Generous PTO

Next Steps


If you're interested in working on challenging technical problems involving real-time data, ML systems, and production-scale infrastructure, we'd love to connect. We can share more details about the company, team, and tech stack in a confidential conversation.


Interested? Let's talk. Apply now or reach out directly to learn more.