Full Stack Engineer
Cambridge, MA · On-site
... or FastAPI • Strong proficiency with TypeScript and React • Experience with PostgreSQL and ... influencing engineering culture • Experience making architecture decisions in growing ...
Cambridge, MA · On-site
... or FastAPI • Strong proficiency with TypeScript and React • Experience with PostgreSQL and ... influencing engineering culture • Experience making architecture decisions in growing ...
Cambridge, MA · On-site
... or FastAPI • Strong proficiency with TypeScript and React • Experience with PostgreSQL and ... influencing engineering culture • Experience making architecture decisions in growing ...
Boston, MA · On-site
$146K - $196K/yr
... FastAPI. • Proven experience architecting and delivering production-grade applications and ETL ... Statistics, Engineering, or equivalent experience. Preferred : • Experience or interest in ...
Boston, MA · On-site
$146K - $196K/yr
... FastAPI. • Proven experience architecting and delivering production-grade applications and ETL ... Statistics, Engineering, or equivalent experience. Preferred : • Experience or interest in ...
Immediate Role Overview We are seeking a Junior AI/ML Engineer to support the development of an ... Experience building APIs or backend services (FastAPI, Flask, or similar) * Strong analytical and ...
Quick apply
Immediate Role Overview We are seeking a Junior AI/ML Engineer to support the development of an ... Experience building APIs or backend services (FastAPI, Flask, or similar) * Strong analytical and ...
Boston, MA · On-site
$113K - $155K/yr
... FastAPI, Flask, or Django) and TypeScript or JavaScript, with experience in modern frontend ... engineering, model evaluation frameworks, and LLM observability tools such as LangSmith or Weights ...
Boston, MA · On-site
$113K - $155K/yr
... FastAPI, Flask, or Django) and TypeScript or JavaScript, with experience in modern frontend ... engineering, model evaluation frameworks, and LLM observability tools such as LangSmith or Weights ...
Cambridge, MA · On-site
Technical Stack Python (Django/DRF, FastAPI), React/TypeScript, PostgreSQL, Redis, Celery, AWS ... You'll be one of the first engineers -- your decisions will shape the company * Direct access to ...
Quick apply
Cambridge, MA · On-site
Technical Stack Python (Django/DRF, FastAPI), React/TypeScript, PostgreSQL, Redis, Celery, AWS ... You'll be one of the first engineers -- your decisions will shape the company * Direct access to ...
Boston, MA · On-site
$70 - $110/hr
Develop and maintain Python-based AI applications and APIs using frameworks like FastAPI, Flask, or ... Collaborate with data engineering teams to ensure smooth ingestion, transformation, and storage of ...
Boston, MA · On-site
$70 - $110/hr
Develop and maintain Python-based AI applications and APIs using frameworks like FastAPI, Flask, or ... Collaborate with data engineering teams to ensure smooth ingestion, transformation, and storage of ...
Experience designing and deploying APIs and client libraries using tools such as OpenAPI, FastAPI ... business and engineering challenges. * Experience partnering with technical and business ...
Experience designing and deploying APIs and client libraries using tools such as OpenAPI, FastAPI ... business and engineering challenges. * Experience partnering with technical and business ...
Boston, MA · On-site
$135K - $325K/yr
Experience designing and deploying APIs and client libraries using tools such as OpenAPI, FastAPI ... business and engineering challenges. * Experience partnering with technical and business ...
Boston, MA · On-site
$135K - $325K/yr
Experience designing and deploying APIs and client libraries using tools such as OpenAPI, FastAPI ... business and engineering challenges. * Experience partnering with technical and business ...
Boston, MA · On-site
... FastAPI, Flask, or Django) and TypeScript or JavaScript, with experience in modern frontend ... engineering, model evaluation frameworks, and LLM observability tools such as LangSmith or Weights ...
Boston, MA · On-site
... FastAPI, Flask, or Django) and TypeScript or JavaScript, with experience in modern frontend ... engineering, model evaluation frameworks, and LLM observability tools such as LangSmith or Weights ...
About the role You'll be the founding ML engineer who owns our matching algorithms from exploration ... Strong production Python (NumPy, Pandas, FastAPI, SQLAlchemy). * Strong SQL and modern data ...
About the role You'll be the founding ML engineer who owns our matching algorithms from exploration ... Strong production Python (NumPy, Pandas, FastAPI, SQLAlchemy). * Strong SQL and modern data ...
Boston, MA · On-site
$133K - $175K/yr
Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ... Previous experience leading an Agile team of developers a plus: * Proven on-time delivery of ...
Boston, MA · On-site
$133K - $175K/yr
Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ... Previous experience leading an Agile team of developers a plus: * Proven on-time delivery of ...
Engineers come to Klaviyo with experience in a variety of languages and from a number of ... Backend primarily using Django, FastAPI, and Python, with data pipelines via Airflow
Engineers come to Klaviyo with experience in a variety of languages and from a number of ... Backend primarily using Django, FastAPI, and Python, with data pipelines via Airflow
Boston, MA · On-site
$133K - $175K/yr
Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ... Previous experience leading an Agile team of developers a plus: * Proven on-time delivery of ...
Boston, MA · On-site
$133K - $175K/yr
Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ... Previous experience leading an Agile team of developers a plus: * Proven on-time delivery of ...
Boston, MA · On-site
$113K - $155K/yr
Our team is looking for a Sr. AI Engineer on the Customer Agent team, Klaviyo's AI-native ... Proficient in Python and modern backend frameworks (FastAPI, Django preferred). * Experience ...
Boston, MA · On-site
$113K - $155K/yr
Our team is looking for a Sr. AI Engineer on the Customer Agent team, Klaviyo's AI-native ... Proficient in Python and modern backend frameworks (FastAPI, Django preferred). * Experience ...
Boston, MA · On-site
$133K - $175K/yr
Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ... Previous experience leading an Agile team of developers a plus: * Proven on-time delivery of ...
Quick apply
Boston, MA · On-site
$133K - $175K/yr
Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ... Previous experience leading an Agile team of developers a plus: * Proven on-time delivery of ...
Boston, MA · On-site
Build APIs, backend services, and agentic workflows using Python, FastAPI, LangChain, and AWS SDKs ... Data Engineering & Integration * Partner with Data Engineering to design robust ETL/ELT pipelines ...
Boston, MA · On-site
Build APIs, backend services, and agentic workflows using Python, FastAPI, LangChain, and AWS SDKs ... Data Engineering & Integration * Partner with Data Engineering to design robust ETL/ELT pipelines ...
Position Overview As Staff Software Engineer (Backend) , you will set the technical direction for ... FastAPI, async, type system, profiling, internals * Distributed systems intuition : caching, queues ...
Position Overview As Staff Software Engineer (Backend) , you will set the technical direction for ... FastAPI, async, type system, profiling, internals * Distributed systems intuition : caching, queues ...
Build APIs, backend services, and agentic workflows using Python, FastAPI, LangChain, and AWS SDKs ... Data Engineering & Integration * Partner with Data Engineering to design robust ETL/ELT pipelines ...
Build APIs, backend services, and agentic workflows using Python, FastAPI, LangChain, and AWS SDKs ... Data Engineering & Integration * Partner with Data Engineering to design robust ETL/ELT pipelines ...
Boston, MA · On-site
$107K - $222K/yr
Build APIs, backend services, and agentic workflows using Python, FastAPI, LangChain, and AWS SDKs ... Data Engineering & Integration * Partner with Data Engineering to design robust ETL/ELT pipelines ...
Boston, MA · On-site
$107K - $222K/yr
Build APIs, backend services, and agentic workflows using Python, FastAPI, LangChain, and AWS SDKs ... Data Engineering & Integration * Partner with Data Engineering to design robust ETL/ELT pipelines ...
Boston, MA · On-site
$133K - $175K/yr
Python, Django, FastAPI, Go * Frontend: React, TypeScript * Infrastructure and CI: AWS, Kubernetes, Terraform, Helm, Buildkite, Pants * Data: MySQL, PostgreSQL, Redis, Kafka * AI Tools: Claude ...
Boston, MA · On-site
$133K - $175K/yr
Python, Django, FastAPI, Go * Frontend: React, TypeScript * Infrastructure and CI: AWS, Kubernetes, Terraform, Helm, Buildkite, Pants * Data: MySQL, PostgreSQL, Redis, Kafka * AI Tools: Claude ...
$13.06 - $18.66
4% of jobs
$18.66 - $24.26
9% of jobs
$28.29 is the 25th percentile. Wages below this are outliers.
$24.26 - $29.87
17% of jobs
$29.87 - $35.47
13% of jobs
The median wage is $38.74 / hr.
$35.47 - $41.07
13% of jobs
$41.07 - $46.68
10% of jobs
$46.68 - $52.28
9% of jobs
$53.33 is the 75th percentile. Wages above this are outliers.
$52.28 - $57.88
9% of jobs
$57.88 - $63.48
7% of jobs
$63.48 - $69.09
6% of jobs
$69.09 - $74.69
4% of jobs
$13
$42
$74
Full-time
Medical, Dental, Vision, PTO
Re-posted 4 days ago
Job Description
Full-time, onsite opportunity for a Senior or Staff Full Stack Engineer based in Central Square, Cambridge, MA. Join a venture-backed AI startup building an AI-native expert network that helps consulting firms, investors, and enterprises access expert insights with unprecedented speed and precision. Leveraging generative AI, intelligent search, and AI-powered interviewing technology, the platform is transforming how organizations discover expertise, conduct research, and make critical business decisions. This role offers the opportunity to build the core systems powering the next generation of AI-driven knowledge services.
This is a foundational engineering role working directly alongside the CTO to build and scale core platform capabilities. You'll have significant influence over architecture, engineering standards, hiring, and product direction while contributing hands-on across the full technology stack. Ideal for an experienced startup engineer who enjoys ownership, fast-paced environments, and building AI-first products from the ground up.
Required Skills & Experience
• 7+ years of professional full-stack software engineering experience
• Strong experience building products in startup or high-growth environments
• Expertise with Python, Django, and/or FastAPI
• Strong proficiency with TypeScript and React
• Experience with PostgreSQL and modern database design
• Experience building applications on AWS
• Experience with Docker and cloud-native development practices
• Experience integrating and working with LLM APIs such as GPT, Claude, or similar models
• Strong system design, architecture, and debugging skills
• Excellent communication and cross-functional collaboration abilities
Desired Skills & Experience
• Experience building AI-native or Generative AI products
• Experience with hybrid search, retrieval systems, or knowledge platforms
• Experience mentoring engineers and influencing engineering culture
• Experience making architecture decisions in growing organizations
• Familiarity with modern ML workflows and AI infrastructure
• Experience working closely with product and design teams
What You Will Be Doing
Tech Breakdown
• 40% Backend Development (Python, APIs, Infrastructure)
• 30% Frontend Development (React, TypeScript)
• 20% Architecture & System Design
• 10% AI/LLM Integrations & Innovation
Daily Responsibilities
• 80% Hands On
• 10% Technical Leadership & Mentorship
• 10% Team Collaboration
• Design, build, and maintain scalable software systems across the full stack
• Contribute to architecture decisions that support long-term scalability and performance
• Build and enhance AI-powered product capabilities leveraging LLMs and emerging technologies
• Partner with product, design, and machine learning teams to deliver customer-facing features
• Debug and resolve complex production issues across the platform
• Help establish engineering standards, best practices, and development processes
• Provide guidance and mentorship to fellow engineers when needed
• Evaluate and implement new technologies that improve product capabilities
• Influence hiring decisions and help shape the engineering organization
• Contribute as a founding team member in building a high-performance engineering culture
The Offer
Competitive salary plus meaningful equity
You will receive the following benefits:
• Medical Insurance
• Dental Benefits
• Vision Benefits
• Paid Time Off (PTO)
• Equity Participation
• Flexible Work Arrangements
• Professional Development Opportunities
Applicants must be currently authorized to work in the United States on a full-time basis. This position does not provide sponsorship for new work visas but may support transfers of existing work authorization where applicable.
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Recruiting and staffing services
501 - 1,000 Employees
Boston, MA, US
1989