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Api System Engineer Jobs (NOW HIRING)

Our Backend Engineers package up our technology in models and last-mile quality tooling. Our ... API system development for copilot serving and integration with a focus on enterprise-grade ...

Integration of user-facing elements developed by a front-end developers with server-side logic ... Design, develop and deliver the API system that supports new features Requirements: Must ...

API Systems Engineer

Vienna, VA · On-site

$173K - $205K/yr

Evaluate, tune, and monitor current and planned systems integration software solutions. To ... Serve as a subject matter expert on API integrations for enterprise initiatives and projects

Integration of user-facing elements developed by a front-end developers with server-side logic ... Design, develop and deliver the API system that supports new features Requirements: Must ...

Title: GCP System Engineer - AI Contact Center Location: Issaquah, WA (Hybrid model three days ... External API Integration: Configure and secure API endpoints to facilitate the real-time ...

Full-Stack Engineer Nexusflow is currently adding Full-Stack Engineers to our team. Our full-stack ... Contributing to the backend API system for cloud or on-prem deployment * Staying updated on ...

System Engineer 2

Annapolis, MD · On-site

$155K - $205K/yr

Job Brief Docker, API Integration, Python, Linux, SIEM, AI/ML RealmOne was built on the principle ... The Level 2 System Engineer shall possess the following capabilities: * Docker containerization ...

Controls System Engineer

Houston, TX · On-site

$79K - $103K/yr

PLC, Gas Turbines, Controls System Engineer Standards SCADA Allen Bradley PLC Control System ... API, UL, CSA, ASME, ATEX, IEC, etc.) * Ability to travel to site location, as necessary (10-15 ...

Controls System Engineer

Houston, TX · On-site

$79K - $103K/yr

PLC, Gas Turbines, Controls System Engineer Standards SCADA Allen Bradley PLC Control System ... API, UL, CSA, ASME, ATEX, IEC, etc.) * Ability to travel to site location, as necessary (10-15 ...

System Engineer

Springfield, VA · On-site

$150 - $200/hr

Back System Engineer Application Development Springfield , Virginia Aug 12, 2026 System Engineer ... It supports development, containerization, API frameworks, data tagging, tracking, and high ...

Position Summary The System Engineer is responsible for the design, administration, maintenance ... Develop API-based automation and scripting solutions to reduce repetitive system administration ...

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Api System Engineer information

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$53.5K

$127.2K

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How much do api system engineer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for api system engineer in the United States is $127,215.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,000.00 and $157,000.00 per year, depending on experience, location, and employer.

What are popular job titles related to Api System Engineer jobs?

For Api System Engineer jobs, the most frequently searched job titles are:

Infographic showing various Api System Engineer job openings in the United States as of June 2026, with employment types broken down into 100% Full Time. Highlights an 94% Physical, 1% Hybrid, and 5% Remote job distribution, with an average salary of $127,215 per year, or $61.2 per hour.

Backend Engineer

Palo Alto, CA

Nexusflow.ai Inc.
Software Development • 11 - 50 employees

Full-time

Re-posted 4 days ago


Job description

About Nexusflow.ai

Modern enterprise copilots & agents call for last-mile quality, enterprise-grade robustness and scalable operation costs, beyond simplified programming interfaces for generative AI. Nexusflow tackles this challenge, enabling enterprises to own their workflow copilots & agents stacked on top of powerful yet cost-effective, compact LLMs. We train large language models and build last-mile quality dev tooling for copilots & agents on your enterprise workflows. Our team has built the open-source LLM, NexusRaven-V2, rivaling GPT-4 in function calling with a 100X smaller model size. Our team members are also behind the scenes of Starling, the #1 ranked compact 7B chat model based on human evaluation in Chatbot Arena.

Position: Backend Engineer

Nexusflow is currently adding Backend Engineers to our team. Our Backend Engineers package up our technology in models and last-mile quality tooling. Our Backend Engineers will be the driving force to build our products and solutions, in extensive collaboration with our ML Engineers and Front-end Engineers.

Responsibilities
  • API system development for copilot & agent quality tooling

  • API system development for copilot serving and integration with a focus on enterprise-grade requirements in the following areas

    • Integration with on-prem & cloud compute vendors

    • Integration with software tools required in customer oriented solutions

  • Distributed system and optionally GPU performance optimization

  • Wear many hats and collaborate with the whole team for product development, deployment and customer success

Qualification Required
  • Experience in ML model or ML data pipeline deployment (on-prem or on cloud)

  • Experience in building backend for application or platform API systems

Preferred
  • Working experience in fast-pace team environment  
  • Experience in using or contributing to modern compute frameworks for LLMs (e.g. Deepspeed, Huggingface TGI, FSDP)

  • Experience in projects involving LLMs