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Senior Backend Developer Jobs in Boston, MA (NOW HIRING)

WEX

Senior Backend Engineer - AI Platform

Boston, MA · On-site +1

$133K - $175K/yr

Seattle, WA; and Portland, ME About the Team/Role We are seeking a seasoned Sr. Software Engineer ... Proficiency in backend development, with expertise in Java or C#, frameworks like SpringBoot ...

eNett

Senior Backend Engineer - AI Platform

Boston, MA · On-site +1

$133K - $175K/yr

Seattle, WA; and Portland, ME About the Team/Role We are seeking a seasoned Sr. Software Engineer ... Proficiency in backend development, with expertise in Java or C#, frameworks like SpringBoot ...

S&P Global

Senior Backend Software Engineer

Cambridge, MA · On-site

$133K - $176K/yr

As a Senior Backend Engineer, you will develop reliable, secure, and performant APIs that apply Kensho's AI capabilities to specific customer workflows. You will collaborate with colleagues from ...

Roberts Recruiting, LLC

Senior Software Engineer

Quincy, MA · On-site

$128K - $169K/yr

They are seeking a Senior Back End Engineer to help shape the engineering team and build a world-class product, focusing on backend services, stability, and performance. Responsibilities : • ...

ZoomInfo Technologies LLC

Senior Software Engineer

Waltham, MA · Hybrid

$132K - $174K/yr

As a Senior Backend Software Engineer on the Growth team , you'll be at the forefront of building and scaling ZoomInfo's core backend services. You'll work primarily with Java to develop robust, high ...

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Senior Backend Developer information

See Boston, MA salary details

$69.5K

$151.9K

$206.9K

How much do senior backend developer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for senior backend developer in Boston, MA is $151,913.00, according to ZipRecruiter salary data. Most workers in this role earn between $130,900.00 and $170,000.00 per year, depending on experience, location, and employer.

What does a senior backend developer do?

A Senior Backend Developer is responsible for designing, building, and maintaining the server-side logic of web applications. They work with databases, APIs, and server infrastructure to ensure that applications run smoothly, securely, and efficiently. In addition to writing robust code, they often mentor junior developers, contribute to architectural decisions, and collaborate with frontend teams to deliver seamless user experiences. Their expertise is crucial for scaling applications and implementing best practices in software development.

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

AspectSenior Backend DeveloperBackend Developer
Required Experience5+ years, leadership skills1-3 years, foundational skills
ResponsibilitiesDesign architecture, mentor juniors, optimize systemsImplement features, fix bugs, write code
Skills & CertificationsAdvanced coding, system design, relevant certificationsBasic coding, database knowledge
Work EnvironmentCollaborates with cross-functional teams, often in larger projectsFocuses on individual tasks within projects

The main difference between a Senior Backend Developer and a Backend Developer lies in experience, responsibilities, and leadership. Senior Backend Developers typically have more years of experience, take on complex system design, and mentor junior staff, whereas Backend Developers focus on implementing features and fixing bugs. Both roles are essential in backend development teams, but the senior role involves more strategic and leadership duties.

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

To thrive as a Senior Backend Developer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), deep understanding of API design, and experience with database management, often supported by a degree in computer science or related field. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications in backend technologies are commonly required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and mentor junior developers. These competencies ensure robust, scalable backend systems and drive successful project delivery in complex technical environments.

What are common challenges senior backend developers face when leading complex projects, and how can they address them?

Senior Backend Developers often encounter challenges such as integrating legacy systems with new technologies, ensuring scalability under increased load, and coordinating cross-functional teams for seamless feature delivery. Addressing these challenges typically involves proactive architectural planning, clear communication with frontend and DevOps teams, and adopting best practices like code reviews and automated testing. Staying updated on emerging technologies and fostering a culture of knowledge sharing within the team also help in overcoming technical obstacles and driving successful project outcomes.
What are the most commonly searched types of Backend Developer jobs in Boston, MA? The most popular types of Backend Developer jobs in Boston, MA are:
What are popular job titles related to Senior Backend Developer jobs in Boston, MA? For Senior Backend Developer jobs in Boston, MA, the most frequently searched job titles are:
What job categories do people searching Senior Backend Developer jobs in Boston, MA look for? The top searched job categories for Senior Backend Developer jobs in Boston, MA are:
What cities near Boston, MA are hiring for Senior Backend Developer jobs? Cities near Boston, MA with the most Senior Backend Developer job openings:
Senior Backend Developer jobs near you
Infographic showing various Senior Backend Developer job openings in Boston, MA as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $151,913 per year, or $73 per hour.

Senior Backend Software Engineer

S&P Global, Inc.

Cambridge, MA • On-site

$150 - $225/hr

Other

Medical, Dental, Vision, Retirement, PTO

Re-posted 5 days ago

S&P Global rating

7.3

Company rating: 7.3 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

Job description

Kensho is S&P Global’s hub for AI innovation and transformation. With expertise in machine learning, natural language processing, and data discovery, we develop and deploy novel solutions to innovate and drive progress at S&P Global and its customers worldwide. Kensho’s solutions and research focus on business and financial generative AI applications, agents, data retrieval APIs, data extraction, and much more.

At Kensho, we hire talented people and give them the autonomy and support needed to build amazing technology and products. We collaborate using diverse perspectives to solve hard problems. Our communication is open, honest, and efficient. We dedicate time and resources to explore new ideas while staying rooted in engineering best practices, allowing us to innovate rapidly and deliver technology that is scalable, robust, and useful.

As a Senior Backend Engineer, you will develop reliable, secure, and performant APIs that apply Kensho’s AI capabilities to specific customer workflows. You will collaborate with colleagues from Product, Machine Learning, Infrastructure, and Design, and with other engineers within Applications. You possess a demonstrated capacity for depth and are comfortable working with a broad range of technologies. Your verbal and written communication is proactive, efficient, and inclusive of geographically‑distributed colleagues.

Salary range: 150k–225k. Eligible for an annual incentive bonus and equity plans.

What You’ll Do:
  • Design, develop, test, document, deploy, maintain, and improve software
  • Manage individual project priorities, deadlines, and deliverables
  • Work with key stakeholders to develop system architectures, API specifications, implementation requirements, and complexity estimates
  • Test assumptions through instrumentation and prototyping
  • Promote ongoing technical development through code reviews, knowledge sharing, and mentorship
What You’ll Need:
  • At least five years of direct experience developing customer‑facing APIs within a team
  • Thoughtful and efficient communication skills (both verbal and written)
  • Experience developing RESTful APIs using a variety of tools
  • Experience translating abstract business requirements into concrete technical plans
  • Experience working across many stages of the software development lifecycle
  • Sound reasoning about the behavior and performance of loosely‑coupled systems
  • Proficiency with algorithms (including time and space complexity analysis), data structures, and software architecture
  • At least one domain of demonstrable technical depth
Technologies & Tools We Use:
  • Python, Flask, FastAPI, Django REST Framework, PostgreSQL, Celery, RabbitMQ, Redis, Kafka, Jsonnet, Agentic Coding Tools (Claude Code, Codex, Cline)
  • AWS, Amazon EKS, Sentry, Prometheus, Git, Jenkins, GitHub Actions
Benefits:
  • Medical, Dental, and Vision insurance (100% company‑paid premiums)
  • Unlimited Paid Time Off
  • 26 weeks of 100% paid Parental Leave (paternity and maternity)
  • 401(k) plan with 6% employer matching
  • Generous company matching on donations to non‑profit charities
  • Up to $20,000 tuition assistance toward degree programs, plus up to $4,000/year for ongoing professional education such as industry conferences
  • Plentiful snacks, drinks, and regularly catered lunches
  • Dog‑friendly office (CAM office)
  • Bike sharing program memberships
  • Compassion leave and elder care leave
  • Mentoring and additional learning opportunities
  • Opportunity to expand professional network and participate in conferences and events

We are an equal‑opportunity employer that welcomes future Kenshins with all experiences and perspectives. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

Kensho is headquartered in Cambridge, MA, with an additional office location in New York City.

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