39 python api developer jobs at 21 companies in Portsmouth, NH
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Andover or Boston or New York or Chicago or Menlo Park or Manchester or London or Tokyo
$140k/yr OnsiteFull Time
6+ YOE6+ years building production applications; experience with JavaScript/Node.js and/or Python, PostgreSQL/MySQL, AWS, API integrations, full-stack development, modern/AI-assisted dev tools; authorized to work in the US.
Javascript, Node.js, Python, PostgreSQL, MySQL, AWS, AI-assisted development tools, NetSuite APIs, APIs
1w
Save
Mark Applied
Hide
Full Stack Developer
Arlington, Massachusetts, United States
$66k-$82k/yr HybridFull Time
1+ YOEBachelor’s degree or equivalent, 1+ years software development experience, proficiency with JavaScript/Vue.js, Python, RESTful APIs, relational databases, Git, and AWS services.
Vue.js, JavaScript, React, HTML, CSS, Python, PHP, RESTful APIs, PostgreSQL, MySQL, MariaDB, SQL, Git, AWS S3, AWS RDS, AWS Bedrock, CloudWatch, Lambda, CI/CD
1w
Save
Mark Applied
Hide
Full Stack Developer
Arlington, Massachusetts, United States
$66k-$82k/yr HybridFull Time
1+ YOEBachelor's or equivalent experience,1–2 years professional software development,experience with JavaScript,Vue.js,Python,RESTful APIs,relational databases,AWS,Git,CI/CD,and applied AI concepts.
Vue.js, JavaScript, Python, RESTful APIs, PostgreSQL, MySQL, MariaDB, Git, AWS S3, AWS RDS, AWS Lambda, AWS CloudWatch, AWS Bedrock, CI/CD, HTML, CSS, React, PHP, LLM
3mo
Save
Mark Applied
Hide
Senior Software Engineer
Woburn, Massachusetts, United States
$139k-$165k/yr OnsiteFull Time
3+ YOETop Secret clearance with SCI eligibility; BS+5y, MS+3y, or PhD in CS; strong C++, Python, Java; Linux; Docker/Kubernetes; API design; team collaboration.
C++, Python, Java, Linux, Docker, Kubernetes, APIs
2w
Save
Mark Applied
Hide
Software Engineer (Teradyne, North Reading)
North Reading, Massachusetts, United States
$130k-$207k/yr OnsiteFull Time
5+ YOEBachelor’s degree or equivalent,5+ years software development,strong C# and Python skills,experience designing APIs/SDKs,knowledge of Generative/Agentic AI and Model Context Protocol,cloud and Windows experience.
C#, Python, Model Context Protocol, Windows
1mo
Save
Mark Applied
Hide
Senior Data Integration Software Engineer
Boston or Portsmouth or Plano or Indianapolis or Columbus or United States
HybridFull Time
5+ YOEDesign and develop scalable data integration solutions; 5+ years data integration experience; 3–5 years with AWS (Lambda, S3, Glue, Redshift); strong SQL, Python, ETL, APIs, CI/CD; understanding of SAP finance concepts; must be authorized to work in the US without sponsorship.
AWS Lambda, Amazon S3, AWS Glue, Amazon Redshift, SQL, Python, APIs, CI/CD, SAP S/4HANA, SAP FIORI
3mo
Save
Mark Applied
Hide
Staff Software Engineer (Agentic AI)
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
7+ YOEBachelor's degree, 7+ years software development (2+ years building agentic/LLM systems). Experience with agentic frameworks, Python/Java/C#/JavaScript/TypeScript, cloud platforms, GitHub, APIs, and agent architecture.
Google ADK, Anthropic Claude SDK, LangChain, LangGraph, AutoGen, Crew AI, Vertex AI, Azure OpenAI, Bedrock, GitHub, Model Context Protocol (MCP), REST APIs, function calling, Python, Java, C#, JavaScript, TypeScript
6d
Save
Mark Applied
Hide
Senior QA SW Engineer - Salem, NH (10434)
Salem, New Hampshire, United States
$120k-$140k/yr HybridFull Time
3+ YOE3+ years QA experience with test automation and networking knowledge; familiarity with Selenium/QTP/Python/JavaScript, XML/JSON/APIs; BS in relevant field preferred.
Selenium, QTP, Python, Javascript, XML, JSON, APIs, Robot, Perl, Shell, IXIA, Linux, Windows, TCP/IP, SNMP
2w
Save
Mark Applied
Hide
Lead Software Engineer
Wakefield, Massachusetts, United States
$113k-$209k/yr HybridFull Time
8+ YOE8+ years software engineering experience building scalable REST APIs, microservices, Kubernetes, cloud-native data platforms, and distributed data processing using Python/Java and Spark.
REST APIs, microservices, Kubernetes, Data Warehousing, Data Lakes, Delta Lake, Python, Java, Angular, PySpark, Apache Spark, TypeScript, JavaScript, AWS S3, Lambda, API Gateway, EventBridge, Kafka, SNS, SQS, PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, Redis, Terraform, Ansible, Jenkins, GitHub, GitLab, Bitbucket, GoCD, Databricks, Azure, Google Cloud Platform (GCP), LLMs, RAG architectures, Agentic AI
1mo
Save
Mark Applied
Hide
AI Developer, AVP
Burlington, Massachusetts, United States
$90k-$158k/yr OnsiteFull Time
2+ YOEHands-on engineer with 2+ years building production AI systems: LLMs, RAG, agent frameworks, Python (plus Java/C#/TypeScript), cloud platforms (Azure preferred), Kafka/Event Hub, Redis/Hazelcast, and CI/CD practices.
LLMs, RAG, MCP, Python, Java, C#, TypeScript, Kafka, Event Hub, Redis, Hazelcast, Snowflake, Microsoft Azure, AWS, GCP, API Management, APIs, CI/CD, Agile, Scrum
1mo
Save
Mark Applied
Hide
Staff Software Engineer, Consumer Weather Science & AI
Andover or Atlanta
$150k-$190k/yr HybridFull Time
4+ YOE4+ years software engineering experience; strong Python; AWS (S3, Lambda, ECS, API Gateway, SQS/SNS); production LLM API and prompt engineering experience; working knowledge of atmospheric science or NWP; daily use of AI coding assistants; strong communication.
Python, TypeScript, JavaScript, Claude Code, Cursor, Cline, AWS, S3, Lambda, ECS, API Gateway, SQS, SNS, LLM APIs, LiteLLM, Langfuse, GRIB, NetCDF, HDF, Zarr, CI/CD, IaC
2w
Save
Mark Applied
Hide
Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
3+ YOEBachelor's in CS or related, 3+ years applied ML/data experience, strong Python and backend skills, experience with cloud, distributed systems, and large-scale data processing; leadership and mentoring experience preferred.
Python, REST API, Pandas, NumPy, AWS Services, GCP, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, MLFlow, TensorFlow, PyTorch, Scikit-learn, Docker, Git, CI/CD
3w
Save
Mark Applied
Hide
Full Stack Developer Co-Op Spring 2027
Peabody or Boston
$23-$30/hr OnsiteInternship
Pursuing a bachelor’s in CS/CE/SE, experience with Python/JavaScript/TypeScript, databases/APIs, testing and documentation, ability to handle large datasets, and eligible for U.S. Secret clearance (U.S. citizen).
Python, JavaScript, TypeScript, React, Node.js, InfluxDB, SCADA, PLC, Git
6d
Save
Mark Applied
Hide
Data Engineering Quality Engineer
Dallas or Merrimack or Jersey City
$69k-$153k/yr OnsiteFull Time
6+ YOE6+ years quality engineering experience; strong SQL, Python, and API testing; ETL/ELT and BI validation; automation and CI/CD experience; Bachelor's degree in computer science or related field.
Playwright, RestAssured, Karate, Cucumber, TestNG, Oracle, PostgreSQL, DB2, SQL, PL/SQL, Python, GitHub, Jenkins, Maven, Docker, SonarQube, AWS, Azure, Google Cloud, Snowflake, Databricks, Apache Spark, Hadoop, Jira
1w
Save
Mark Applied
Hide
Software Engineer
Lexington, Massachusetts, United States
$135k-$145k/yr OnsiteFull Time
8+ YOEActive Secret clearance required; 6–8+ years software experience depending on degree; proficiency in Java/Python/C++/C#/JavaScript, RESTful APIs, CI/CD and software-development principles.
Java, Python, C++, C#, JavaScript, RESTful APIs, Git, Maven, Gradle, Jenkins, GitLab CI, Linux, Windows, Spring, JEE, SQL, Docker, Kubernetes, OpenShift, JUnit, Mockito, Selenium, Cucumber
4w
Save
Mark Applied
Hide
Senior Data Engineer
Durham or Merrimack
OnsiteFull Time
Extensive data engineering experience with Oracle PL/SQL, AutoSys, ETL, Informatica, Snowflake, SQL, and data modeling; familiarity with Java/Python, REST API, AWS, DevOps tools, Agile, and on-call production support.
Oracle PL/SQL, AutoSys, Informatica, Snowflake, SQL, Java, Python, REST API, AWS, Maven, Jenkins, Git, Docker, Kanban, SCRUM
2w
Save
Mark Applied
Hide
Principal Software Engineer
Wilmington, Massachusetts, United States
$144k-$216k/yr OnsiteFull Time
8+ YOE3+ MgmtBachelor's degree or equivalent,8+ years quality engineering experience,3+ years technical leadership,proficiency in test automation,CI/CD,API testing,Agile.
Java, Python, C#, JavaScript, Selenium, Cypress, Playwright, Appium, RestAssured, MS Copilot, Jenkins, GitHub Actions, Azure DevOps, JMeter, Gatling, k6, Docker, Kubernetes, AWS, Azure
1w
Save
Mark Applied
Hide
Senior Security Automation Engineer
Wilmington, Massachusetts, United States
$120k-$165k/yr HybridFull Time
5+ YOEBachelor's degree in a technical field,5+ years professional software engineering experience,experience with AI/LLM systems and full-stack development,Python and API integration skills,security-aware design and strong communication.
Docker, CI/CD, LLM APIs, RAG pipelines, Python, TypeScript, Go, Rust, PostgreSQL, SQLite, BigQuery, REST APIs, webhooks, message queues, SIEM, SOAR, ITSM, IAM, GRC
2w
Save
Mark Applied
Hide
AI Business Systems Engineer (HYBRID)
Wakefield, Massachusetts, United States
$100k-$130k/yr HybridFull Time
4+ YOE4+ years building cross-functional business systems, deep hands-on AI model knowledge, API and automation platform experience, strong business judgment and communication; scripting with Python/JavaScript a plus.
Python, JavaScript, APIs, Google, Facebook, Instagram, Bing
1w
Save
Mark Applied
Hide
Forward Deployed Engineer
United States or Nashua or Austin
OnsiteFull Time
3+ YOE3+ years customer-facing technical experience, programming in JavaScript/TypeScript/Python, API integration, RAG and embedding workflows, prompt engineering, troubleshooting, and strong communication skills.
JavaScript, TypeScript, Python, Optimizely AI (Opal), CMS, CMP, Web Experimentation, Feature Experimentation, ODP