35 backend engineer jobs at 19 companies in Eliot, ME
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Senior Backend Engineer – AI Platform
Boston or San Francisco or Seattle or Dallas or Salt Lake City or Portland or United States
$122k-$146k/yr RemoteFull Time
5+ YOEBachelor's in CS/Software Engineering, 5–8 years software engineering experience; expertise in backend Java/C# (SpringBoot), REST/gRPC, SQL; experience building scalable distributed systems and AI/LLM-driven services.
Java, C#, SpringBoot, REST, gRPC, ODATA, SQL, OpenAI APIs, LangChain, Python, Kafka, Docker, Kubernetes, Model Context Protocol (MCP), Pinecone, Weaviate, OpenSearch, Milvus
3mo
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Java Backend Engineer
Merrimack, New Hampshire, United States
$88k-$153k/yr OnsiteFull Time
6+ YOE6+ years backend Java experience with Spring/Spring Boot, API/microservices design, Oracle/DB2 and PL/SQL, CI/CD with Git/Jenkins/uDeploy, DevOps tooling; bachelor's degree required.
Java, Spring, Spring Boot, PL/SQL, Oracle, DB2, Git, Jenkins, uDeploy, Sonar, HP Operations Orchestration, ServiceNow, HP Service Manager, RESTful (Rest-APIs)
1mo
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Java Backend Engineer (Onsite Hybrid)
Merrimack, New Hampshire, United States
$97k-$145k/yr HybridFull Time
10+ YOE10+ years Java experience, 6+ years Spring/Spring Boot, 5+ years cloud (Microsoft Azure preferred), 6+ years REST/microservices, CI/CD, database and testing tool experience.
Java, Spring, Spring Boot, Microsoft Azure, RabbitMQ, Kafka, Service Bus, Oracle, Postgres, Jenkins, JUnit, Cucumber, Selenium
1w
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Senior Software Engineer - Backend Python
Nashua, New Hampshire, United States
$97k-$165k/yr OnsiteFull Time
6+ YOEBachelor's in CS or related, 6+ years backend Python experience, mastery of Python 3.x and AsyncIO, gRPC/Protobuf, Docker/Kubernetes, PostgreSQL, and ability to obtain U.S. Secret clearance.
Python, AsyncIO, gRPC, Protocol Buffers (Protobuf), FastAPI, Flask, Django, PostgreSQL, SQLAlchemy, Docker, Kubernetes, Kafka, RabbitMQ, Redis, C#, OAuth2, JWT
1d
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Engineering Specialist - Back End Days
Lowell, Massachusetts, United States
$37-$50/hr OnsiteFull Time
0+ YOEBachelor's degree in engineering, materials science, or physics; 0–3 years of process development or manufacturing experience; thin-film processing and semiconductor equipment experience; Python, SQL, or JMP proficiency.
Python, SQL, JMP, FIB, RIE, ICP, CAIBE, PECVD, IBE, SEM
2w
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Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
3+ YOEBachelor's in CS/Engineering/Data Science, 3+ years in ML/data/search systems, strong Python, backend and data engineering experience, SQL, cloud (GCP/AWS), and production ML/LLM system design.
Python, REST API, Pandas, NumPy, MLFlow, TensorFlow, PyTorch, Scikit-learn, AWS Services, GCP, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, Docker, Git, CI/CD, SQL
1mo
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Data Engineer
Burlington, Massachusetts, United States
$145k-$180k/yr HybridFull Time
4+ YOE4+ years data/backend engineering experience; strong programming in Python, C++, or Golang; building real-time and batch data pipelines; deep PostgreSQL expertise; experience with cloud and streaming technologies.
Python, C++, Golang, PostgreSQL, Kafka, Redpanda, RabbitMQ, Pulsar, AWS, S3, Parquet, ORC, Delta Lake, Airflow, Dagster, Prefect
3w
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Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
3+ YOEBachelor's degree in a quantitative field and 3+ years in machine learning, data science, search relevance, or ranking systems; strong Python, backend, data engineering, and AI systems expertise.
Python, MLFlow, TensorFlow, PyTorch, scikit-learn, RESTful APIs, SQL, Google Cloud Platform (GCP), AWS, Docker, Git, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, Pandas, NumPy, Claude
3w
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Senior Staff Software Engineer
Austin or Nashua or Minneapolis
OnsiteFull Time
10+ YOEBachelor's or equivalent,10+ years software development,7+ years backend,distributed systems and SQL expertise,Java preferred,cloud-native and query engine/DSL experience.
NetScript, Java, Snowflake, BigQuery, Redshift, Databricks, SQL
1w
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Staff Software Engineer
Burlington or St. Louis
$111k-$166k/yr HybridFull Time
3+ YOEBachelor’s degree in a quantitative field, 3+ years in machine learning, data science, search relevance, or ranking systems, and expertise in Python, backend systems, data engineering, and AI/LLM production systems.
Python, MLFlow, TensorFlow, PyTorch, Scikit-learn, REST API, Pandas, NumPy, AWS, Google Cloud Platform (GCP), Docker, Git, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, SQL, NoSQL, CI/CD, Claude
1mo
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Software Developer II
Westbrook or Maine or New Hampshire or Massachusetts
$90k-$100k/yr HybridFull Time
2+ YOERequires 2–4+ years of software engineering experience, frontend and backend development, NodeJS or Java, JavaScript/TypeScript, React, AWS, SQL, CI/CD, monitoring, and Agile Scrum experience.
NodeJS, Java, JavaScript, TypeScript, React, AWS, RDS, DynamoDB, API Gateway, Lambda, S3, SQL, Datadog, AWS CloudWatch, GitHub, AWS CodePipeline
3mo
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Software Engineer, Generalist (C++/Python)
Boston or Billerica
$140k-$180k/yr OnsiteFull Time
3+ YOE3+ years professional software engineering; strong C++17; Python a plus; backend systems and data pipelines experience; on-site manufacturing focus.
C++ 17, Python, Backend systems, Data pipelines, Containers, AWS
2w
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Principal Software Engineer, Contact Center Digital Engagement Services
Durham or Merrimack or Westlake
OnsiteFull Time
10+ YOERequires 10+ years software engineering, 5+ years Java and Spring Boot, complex backend architecture, real-time communications, cloud-native systems, AI tools, secure engineering, mentoring, and a master's degree or equivalent experience.
Asterisk, FreeSWITCH, Kamailio, WebRTC, SIP, RTP, Matrix, Rocket.Chat, GitHub Copilot, Claude Code, OpenAI Codex, Java, Spring Boot, WebSockets, Server-Sent Events, CI/CD, Microsoft?
1mo
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Principal Software Engineer, Contact Center Digital Engagement Services
Durham or Merrimack or Westlake
OnsiteFull Time
10+ YOE10+ years engineering experience, 5+ years with Java and Spring Boot, experience designing backend architecture, real-time communication tech, cloud-native microservices, secure engineering, and mentoring; Master’s degree preferred or equivalent experience.
Java, Spring Boot, Asterisk, FreeSWITCH, Kamailio, WebRTC, SIP, RTP, Matrix, Rocket.Chat, IVR, WebSockets, Server-Sent Events, CI/CD, GitHub Copilot, Claude Code, OpenAI Codex
1w
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Software Engineer
Andover, Massachusetts, United States
$105k-$135k/yr HybridFull Time
1+ YOE1–5 years software development experience; proficiency in React and backend development (Go, Node.js, or .NET/C#); experience with MongoDB and SQL Server, REST APIs, Git workflows, AWS, and AI coding tools; strong problem-solving and communication.
React, Go, MongoDB, AWS, .NET/C#, SQL Server, Node.js, GitHub Copilot, Cursor, Claude, Git, Docker, Kubernetes, EC2, S3, Lambda, RDS, CloudWatch, LLM APIs
1w
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Autonomy Algorithms Senior Software Engineer
Woburn or Arlington or Dayton
$134k-$184k/yr HybridFull Time
5+ YOEAbility to obtain U.S. security clearance; BS in CS or related with 5+ years experience; 3+ years C++ or Java; experience developing autonomy algorithms, backend systems, Agile practices, and mentoring engineers.
C++, Java, JIRA, Confluence, Gitlab, MAVLINK, ROS, TAK, Python
2mo
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Senior Software Engineer
Burlington, Massachusetts, United States
$140k-$165k/yr HybridFull Time
5+ YOEBachelor's in CS or related, 5+ years professional C#/.NET experience, Windows app (WinForms/WPF) and cloud (Azure/AWS) experience, multithreading and backend/API development, ability to work onsite in Burlington, MA 3+ days/week.
C#, .NET, WinForms, WPF, WinUI, .NET MAUI, Azure, AWS, CI/CD
1mo
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Machine Learning Engineer
Manchester, New Hampshire, United States
OnsiteFull Time
6+ YOEM.S. in CS/AI, 6+ years backend/distributed systems experience, strong Java (Spring Boot, Spring MVC, Hibernate) and Python skills, production ML (PyTorch), Apache Kafka/Spark/ZooKeeper, databases (Oracle, IBM Db2, MSSQL, MongoDB), cloud (AWS).
Java, Spring Boot, Spring MVC, Hibernate, Python, PyTorch, Apache Kafka, Apache Spark, ZooKeeper, REST, SOAP, Oracle, IBM Db2, MSSQL, MongoDB, AWS
1w
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Staff Software Engineer - Confluent Kafka Storage
Poughkeepsie or Lowell or Rochester or Tucson or Research Triangle Park or Armonk or Boston or Bellevue or Atlanta or San Jose or Dallas or Austin or San Francisco or Seattle or New York City
$161k-$299k/yr HybridFull Time
10+ YOE10+ years backend/infrastructure experience; BS in CS or equivalent; expertise in Java/Scala/C/C++/Go; deep knowledge of distributed storage systems, systems-level concepts, and leadership/mentoring skills.
Java, Scala, C/C++, Go, Apache Kafka, Apache Iceberg, Apache Flink, AWS, Azure, GCP, Kora
1mo
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Senior Software Engineer Applied AI
Concord or United States
RemoteFull Time
7+ YOE7+ years building production backend systems, strong Python skills, distributed/cloud experience (AWS), hands-on LLM/generative AI and end-to-end ML lifecycle experience, disciplined in regulated environments, US work authorization required.
Python, AWS, LLM, LinkedIn, AI coding assistants
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