PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1w
Save
Mark Applied
Hide
API Security Engineer
Cambridge, Massachusetts, United States
$146k-$234k/yr HybridFull Time
5+ YOE5+ years cybersecurity or application/platform security experience with hands-on API security, threat modeling, API risk assessment, and collaboration with engineering and platform teams.
API gateways, service meshes, reverse proxies, AI Gateway
2mo
Save
Mark Applied
Hide
Principal Engineer, API & MCP Platform
Reston or Somerville
$220k-$250k/yr HybridFull Time
10+ YOESenior-level principal engineer for API and MCP platform; hybrid role; Reston, VA or Somerville, MA; high ownership and hands-on leadership.
API design, MCP (Model Context Protocol), Semantic APIs, GCP, Vertex AI Context Caching, BigQuery, Snowflake, Apigee
2mo
Save
Mark Applied
Hide
Senior QA Engineer - Automation & API
Portsmouth, New Hampshire, United States
$109k-$125k/yr OnsiteFull Time
5+ YOESenior QA Engineer focused on automation and API; strong experience with .NET, API testing, and CI/CD integration; 5+ years QA experience; bachelor’s in computer science or related field.
Postman, SoapUI/ReadyAPI, WinAppDriver, Selenium, Playwright, Cypress, Git, Bitbucket Pipelines, Jira, MuleSoft, Anypoint Platform, Salesforce, RAML, WSDL, REST, SOAP, NUnit, xUnit, MSTest, C#, Java, JavaScript, TypeScript, Python, WinAppDriver, Winium
1mo
Save
Mark Applied
Hide
Senior Software Engineer - API & MCP Platform
Bethesda or Waltham
$140k-$200k/yr HybridFull Time
5+ YOEBachelor's or equivalent experience, 5+ years software development, 3+ years building RESTful APIs/microservices, expertise in Java and NestJS, OAuth 2.0/OpenID/JWT, API design and security, MCP experience.
Java, NestJS, Spring Boot, Spring Security, Maven, Gradle, OAuth 2.0, OpenID Connect, JWT, OpenAPI, Swagger, Model Context Protocol (MCP), AWS, GCP, Azure, Docker, Kubernetes, Kafka, RabbitMQ
2mo
Save
Mark Applied
Hide
Senior AI Agent Engineer
Boston or Berkeley
$120k-$210k/yr HybridFull Time
7+ YOE7+ years in solutions engineering/technical consulting; BS in CS/Engineering; strong ownership and customer focus; Python/Java; APIs, data integration, cloud; excellent communication.
Python, Java, APIs, Cloud platforms
3w
Save
Mark Applied
Hide
Senior Solutions Engineer
Boston or New York City
OnsiteFull Time
7+ YOE7+ years in solutions/forward-deployed engineering; experience with JSON/YAML, REST APIs, Python or TypeScript, SQL, Databricks, CI/CD; strong customer-facing communication and technical implementation skills.
JSON, YAML, REST API, Python, TypeScript, SQL, Databricks, Pandas, PySpark, AWS, Docker, Kubernetes, CI/CD
4w
Save
Mark Applied
Hide
Solutions Engineer
Australia or Boston or Columbus or College Park
$175k-$205k/yr RemoteFull Time
5+ YOE5+ years in technical support/systems engineering/DevOps for SaaS; strong Linux, Docker, Kubernetes, API, and cloud (AWS/Azure/GCP) experience; experience with Snowflake/Databricks/BigQuery/Redshift/Starburst; strong incident response, communication, and problem-solving skills.
Linux, Docker, Kubernetes, APIs, AWS, Azure, Google Cloud, Snowflake, Databricks, Google BigQuery, Redshift, Starburst/Trino
2mo
Save
Mark Applied
Hide
Senior Electrical Engineer
Woburn, Massachusetts, United States
OnsiteFull Time
5+ YOE5+ years designing, programming, and maintaining control systems; PLC programming; HMI development; RS-232/RS-485/Ethernet/SNMP/REST API; bachelor's in Electrical Engineering; on-site travel.
PLM software, Oracle ERP Cloud, Oscilloscopes, DVMs, RS-232, RS-485, Ethernet, SNMP, REST API, PLC programming, HMI development
3mo
Save
Mark Applied
Hide
Junior Forward Deployed Engineer
Plano or Boston or East Brunswick
$68k-$79k/yr FieldFull Time
0+ YOERecent BS/MS in CS, Engineering, or related; 0–2 years software or implementation experience; programming in Python/JavaScript/Java; API and database familiarity; exposure to cloud platforms and applied AI concepts; strong communication and problem solving.
Python, JavaScript, Java, APIs, SQL, NoSQL, AWS, Azure, GCP, Git, LLM, RAG
1mo
Save
Mark Applied
Hide
AI Engineer
Paris or New York City or Boston
HybridFull Time
5+ YOE5+ years software engineering experience; hands-on LLM/AI feature productionization; strong Python and REST API skills; experience improving reliability, latency, and observability of AI systems.
Python, SQL, Dust, LangChain, LangGraph, LangSmith, n8n, Snowflake, Dagster, Kubernetes, Docker, Terraform, Fivetran, Airbyte, PostgreSQL, Elasticsearch, Hubspot, Notion, REST APIs
4w
Save
Mark Applied
Hide
Senior Electrical Engineer
Ayer, Massachusetts, United States
$82k-$141k/yr OnsiteFull Time
7+ YOEBS in Engineering, 7+ years electrical design/project engineering and software development experience; proficiency with C/C++, C#, Python, RESTful APIs, industrial network protocols, PLC/ladder logic, AutoCAD Electrical; strong communication and troubleshooting skills.
C, C++, C#, Python, RESTful APIs, AutoCAD Electrical, Visual Studio, .NET, IoT, Ethernet/IP, Modbus TCP, CAN Bus, DeviceNet, Ladder logic, Microsoft Office
2w
Save
Mark Applied
Hide
Senior Full Stack Engineer (Java/React)
Dedham or Taunton
$137k-$145k/yr OnsiteFull Time
5+ YOEBachelor's in Software Engineering or related field and 5+ years experience (or Master's +3). Requires DoD Secret clearance and U.S. citizenship. Experience with Java, React/JavaScript, SQL/PostgreSQL, Hibernate, Spring; REST APIs; Agile preferred.
Java, React, SQL, PostgreSQL, JavaScript, Hibernate, Spring, Wildfly, REST API, RESTCONF, Material UI, SNMP, Public Key Infrastructure (PKI), Digital Certificate
3w
Save
Mark Applied
Hide
Senior Electrical Engineer
Woburn or Billerica
$125k-$160k/yr OnsiteFull Time
5+ YOEBachelors in electrical or related field required; 5+ years designing and maintaining control systems; 3+ years PLC/HMI experience; experience with PLC protocols (RS-232, RS-485, Ethernet, SNMP, REST API), schematics, PID control, and firmware/PCBA work.
PLM software, MRP software, Oracle Cloud, PLC, HMI, PCBA, Mixed Signal Oscilloscope, DVM, RS-232, RS-485, Ethernet, SNMP, REST API, PID
1mo
Save
Mark Applied
Hide
Staff Engineer (Platform)
Boston or Vancouver or United States
$180k-$230k/yr RemoteFull Time
8+ YOE8-15 years software dev, distributed systems, platform engineering; proficient in C#, TypeScript; SQL/NoSQL (PostgreSQL preferred); Docker/Kubernetes; AWS; CI/CD; IaC; security; testing; performance; API integration; interest in AI/ML; mentorship.
C#, TypeScript, PostgreSQL, SQL, NoSQL, Docker, Kubernetes, AWS, Git, CI/CD, Infrastructure as Code, Security best practices, Testing and Automation, AI/ML (interest)
3mo
Save
Mark Applied
Hide
Senior Software Systems Engineer
Newington, New Hampshire, United States
OnsiteFull Time
Graduate STEM degree required; proficiency in C++, C#, SQL, ReactJS, RESTful/OpenConfig APIs, Linux (Red Hat); experience with automated testing, source control, security, and strong written/verbal communication.
C++, C#, SQL, ReactJS, RESTful APIs, Open API, OpenConfig, Linux, Red Hat
3d
Save
Mark Applied
Hide
Sr Platform Engineer
Milford, Massachusetts, United States
$113k-$188k/yr OnsiteFull Time
5+ YOE5+ years platform or data engineering experience, Celonis and cloud integration expertise, Python/SQL proficiency, experience with enterprise integrations (SAP, Salesforce, ServiceNow), and strong communication skills.
Celonis, Python, SQL, APIs, Azure, SAP, Salesforce, ServiceNow, SuccessFactors, Vertica SQL, PyCelonis, PQL, MLWB, RPA, GitHub, CI/CD, OCPM, OCDM
1w
Save
Mark Applied
Hide
Sr. Engineering Systems Engineer
Plainville or Boxborough
HybridFull Time
7+ YOEAssociate's or Bachelor's in Engineering (or equivalent experience),7+ years in engineering systems/CAD/PDM/PLM in manufacturing, SolidWorks and PDM administration experience, exposure to Altium/ECAD, workflow and data integration expertise.
MCAD, ECAD, PDM, PLM, SolidWorks, Altium, ERP, PIM, APIs
1mo
Save
Mark Applied
Hide
Trading, Investment & Optimization - QuantAI Engineer (Hybrid)
Seattle or Chicago or Los Angeles or Atlanta or Houston or Arlington or San Francisco or Morristown or Boston or Dallas or San Diego or New York
HybridFull Time
3+ YOEBachelor's in CS/engineering or related field; 3+ years in client-facing tech delivery; strong backend/API/full-stack or ML workflows; experience with enterprise hardening and deployment.
Electron, FastAPI, Docker, cloud services, evaluation tooling, agent orchestration frameworks, MCP-style integrations, Python, TypeScript, JavaScript
2w
Save
Mark Applied
Hide
Senior / Staff Software Engineer, AI Engineering
Boston, Massachusetts, United States
$220k-$280k/yr OnsiteFull Time
5+ YOE5+ years full-stack engineering experience; built and shipped internal tooling; hands-on experience with LLMs, AI APIs, and agentic workflows; strong cross-functional communication; experience owning production infrastructure.
LLMs, AI APIs
3w
Save
Mark Applied
Hide
Senior Software Systems Engineer
Marlborough, Massachusetts, United States
$111k-$150k/yr HybridFull Time
4+ YOEBS/MS in engineering or CS, 4+ years software engineering experience, embedded/connected device experience, systems-level debugging, cross-layer software expertise, authorized to work in the U.S.
Bluetooth Low Energy (BLE), IoT, iOS, Android, Flutter, Git, CI/CD, C/C++, APIs
Explore Jobs