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Bess Application Engineer Jobs in California (NOW HIRING)

Qcells

AVL Integrations Engineer

San Francisco, CA · On-site

$105K - $145K/yr

We are looking for an AVL Integrations Engineer to join the AVL Tech Team within EnFin's Offering ... This position will work closely with the BESS/Inverter and PV/Racking Tech SMEs, the AVL Project ...

Qcells

AVL Integrations Engineer

San Francisco, CA · On-site +1

$105K - $145K/yr

We are looking for an AVL Integrations Engineer to join the AVL Tech Team within EnFin's Offering ... This position will work closely with the BESS/Inverter and PV/Racking Tech SMEs, the AVL Project ...

EPC POWER CORP.

Applications Engineer

Poway, CA · On-site

$150K - $180K/yr

Develop reference architectures, application notes, and technical collateral * Travel up to 25% to ... BESS, UPS, inverters, or mission-critical power systems Benefits * 401(k) with company matching

Inlyte Energy

Technical Program Manager

San Leandro, CA · On-site

$121K - $148K/yr

Own application and report writing and team coordination to ensure all success metrics are met ... Bachelor's degree in Electrical Engineering, Mechanical Engineering, Chemical Engineering, or ...

AESC US

Manager, Inside Sales

Santa Clara, CA · On-site +1

... BESS) business. This role will focus on lead qualification, sales support, and opportunity ... The Inside Sales Representative will work closely with account managers, engineering, and project ...

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Bess Application Engineer information

What are the key skills and qualifications needed to thrive as a BESS Application Engineer, and why are they important?

To thrive as a BESS (Battery Energy Storage System) Application Engineer, you need a solid background in electrical engineering, energy storage systems, and system integration, often supported by a relevant degree. Proficiency with simulation tools (like MATLAB/Simulink), SCADA systems, and knowledge of grid standards or certifications such as PMP or PE are typically required. Strong problem-solving abilities, effective communication, and project management skills set outstanding candidates apart. These competencies are vital to ensure safe, efficient, and reliable design and implementation of BESS projects in a rapidly evolving energy sector.

What are some common challenges faced by BESS Application Engineers when integrating battery energy storage systems with existing power infrastructure?

BESS Application Engineers often encounter challenges such as ensuring seamless compatibility between new battery storage solutions and legacy grid systems, managing diverse communication protocols, and addressing site-specific installation requirements. They also need to balance project timelines with regulatory compliance, and coordinate closely with utility partners, project managers, and commissioning teams. Successfully overcoming these challenges requires strong technical knowledge, attention to detail, and effective collaboration with multidisciplinary teams.

What is a BESS Application Engineer?

A BESS Application Engineer is a professional who specializes in the design, implementation, and optimization of Battery Energy Storage Systems (BESS). They work closely with clients to understand energy storage requirements, select suitable technologies, and ensure systems are integrated effectively with renewable energy sources or grid infrastructure. Their role involves technical analysis, system specification, and supporting the deployment and operation of BESS projects. BESS Application Engineers often collaborate with project managers, electrical engineers, and software developers to deliver reliable and efficient energy storage solutions.

What is the difference between Bess Application Engineer vs BESS Project Engineer?

AspectBess Application EngineerBESS Project Engineer
Primary FocusDesigning and optimizing BESS applications for clientsManaging BESS project execution from planning to completion
Required CredentialsEngineering degree, knowledge of energy storage systemsEngineering degree, project management experience
Work EnvironmentTechnical, client-facing, R&DFieldwork, project sites, coordination with teams

The Bess Application Engineer primarily focuses on designing and customizing energy storage solutions, while the BESS Project Engineer manages the implementation and execution of BESS projects. Both roles require engineering knowledge, but differ in scope and daily activities, catering to different stages of the BESS lifecycle.

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What cities in California are hiring for Bess Application Engineer jobs? Cities in California with the most Bess Application Engineer job openings:
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Infographic showing various Bess Application Engineer job openings in California as of May 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution.

Data Center Proposal Engineer

Capstone Green Energy Holdings LLC

Van Nuys, CA • On-site

$135K - $175K/yr

Full-time

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Our Core Values
Sales Application Engineer
Date Issued:
January 2026
Department:
Strategic Sales
Reports to:
VP Strategic Sales
Location:
Van Nuys, CA
Position Purpose:
The Sales Application Engineer serves as the technical lead bridging the gap between product design and customer-specific power plant requirements. You will be responsible for the "Inquiry-to-Order" (ITO) process, which involves scoping, quoting, and technical validation of integrated energy solutions. The individual should also have the following skills, high level excel experience, TCOM modeling, Financial Modeling, P amp;L, RFI and RFP C,D,E Risk Review including proposal development and good presentation skills with strong knowledge of design, product selection, integrated power plant to include turbine power generation, absorption chilling, battery energy storage systems including plant level control systems
Key Responsibilities
To excel in this role with a focus on integrated power plants, your skill set must span mechanical, electrical, and control systems.
Core Engineering Skill Set
  • Mechanical amp; Power Design: Proficiency in thermodynamic and mechanical performance calculations to develop turbine power requirements, performance curves, and auxiliary system interfaces.
  • Electrical Systems: Expertise in electrical packaging for gensets, including 3-phase synchronization, load balancing, and managing power factors.
  • Product Selection: Capability to evaluate customer specifications against product catalogs to determine the optimal turbine configuration (e.g., simple vs. combined cycle) and prepare technical proposals.
Integrated System Expertise
Modern applications engineering requires mastery of how individual components interact within a larger plant ecosystem:
  • Turbine Power Generation: Design of "cradle-to-grave" turbine architectures, often coupled with aeroderivative gas generators or steam-driven systems.
  • Absorption Chilling: Integrating absorption or adsorption chillers that utilize waste heat from turbine exhaust for district cooling or turbine inlet air cooling, which can improve net plant efficiency to nearly 80%.
  • Battery Energy Storage Systems (BESS): Implementation of BESS to manage peak demand and frequency response, utilizing grid-forming technology to stabilize the power system.
  • Plant-Level Control Systems: Mastery of Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC) to coordinate turbines and BESS. These systems manage charge/discharge cycles and maintain grid stability through active and reactive power commands.
Essential Software amp; Professional Tools
  • Design amp; Modeling: 3D CAD (CREO, SolidWorks), AutoCAD, and system simulation tools like ANSYS or MATLAB.
  • Proposal Management: Experience with Microsoft Project for timeline tracking and ERP systems for cost estimation.
  • Professional Credentials: Pursuing a Professional Engineer (P.Eng.) designation is highly valued for signing off on technical designs.
Strategic Career Resources
  • Industry Job Portals: Monitor openings at major manufacturers such as Siemens Energy Careers or Mitsubishi Power Jobs for 2026-specific roles.
  • Professional Standards: Review API 617 and API 614 standards, which are critical for mechanical performance and auxiliary system compliance in power applications.

The role of Applications Engineer has evolved into a "Technical-Commercial" (T-Com) hybrid. You are not only designing the physical plant but also proving its financial viability and managing the complex risk profiles associated with integrated energy systems.
Commercial amp; Financial Mastery
  • High-Level Excel amp; Financial Modeling: Beyond standard spreadsheets, you must build robust financial models for power generation to calculate Levelized Cost of Energy (LCOE), Net Present Value (NPV), and Internal Rate of Return (IRR) for integrated projects.
  • P amp;L Ownership: You are responsible for the project's "shadow" Profit amp; Loss statement during the proposal phase, ensuring that the technical solution (e.g., adding BESS or absorption chilling) aligns with the manufacturer's margin targets and the customer's payback period.
  • TCOM Modeling: In this context, TCOM refers to Technical-Commercial modeling, where you simulate the interplay between technical performance (heat rate, efficiency) and commercial variables (fuel pricing, grid tariffs, carbon credits) to optimize the plant's total cost of ownership.
Proposal Development amp; Risk Management
  • The "Inquiry-to-Order" process requires rigorous vetting of RFI (Request for Information) and RFP (Request for Proposal) documents:
  • RFP C, D, E Risk Review: This refers to the tiered risk classification systems used by major manufacturers (like GE or Siemens).
  • Category C/D: Standard or moderate risk projects.
  • Category E: High-risk, complex, or first-of-a-kind integrated systems. You must identify technical "deal-breakers" and draft contingency plans for performance guarantees.
  • Proposal Development: You must synthesize engineering drawings, performance data, and financial projections into a cohesive technical proposal that demonstrates a clear value proposition.
Communication amp; Soft Skills
  • Presentation Skills: As the technical face of the company, you must present complex plant architectures—such as how a turbine interacts with a Battery Energy Storage System (BESS)—to C-suite executives who may prioritize financial outcomes over mechanical specifications.
  • Stakeholder Management: Navigating the gap between internal sales teams and external EPC (Engineering, Procurement, and Construction) partners to ensure all contractual technical requirements are met.
Compensation
This position offers a base salary ranging from $125,000 - $160,000, commission, and benefits.
Capstone provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employee(s) will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are subject to possible modification to reasonably accommodate individuals with disabilities. The requirements listed in this document are the minimum levels of knowledge, skills or abilities that the incumbent(s) must possess to successfully perform each duty proficiently.
This document does not create an employment contract, implied or otherwise, other than an "at will" relationship.
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