Application Engineer

Applications Engineer / Senior Applications Engineer

Location: Sulphur Springs, TX (HQ) or Dallas, TX

Working Arrangement: Mon–Fri, 08:00–17:00 | Hybrid possible (70/30 or 80/20 case-by-case)

Start Date: ASAP

About the Company

Our client is a rapidly growing US-based manufacturer in the solar and energy-storage market. They design and produce advanced inverter technologies, energy storage systems, chargers, and related power-electronics solutions for residential, commercial, and industrial applications.

The business has expanded significantly in recent years, bringing more engineering and product development in-house, and now operates within a wider group of innovative renewable-energy companies. With a family-oriented, collaborative, and supportive culture, employees enjoy a workplace built on respect, shared innovation, and genuine care for one another.

The company employs approximately 120–150 people across engineering, design, testing, operations, and customer support teams. Due to continued growth and increasing project demand, they are now hiring Applications Engineers at both mid-level and senior level.

Why Join?

• Collaborative, supportive, and approachable culture
• High-growth environment with opportunities to influence product development
• Company-funded continued education opportunities
• Community involvement and internal events
• Company-branded merchandise
• Discounts and perks with locally owned businesses

Benefits include:

• Medical, Dental, Vision
• Supplemental life insurance
• PTO (details available in benefits document upon request)

Role Overview

You will be a key technical expert supporting the design, integration, and optimisation of commercial and industrial solar and energy-storage systems. Acting as a bridge between engineering, sales, and customers, you will guide system architecture, support commissioning, resolve performance issues, and influence future product development.

This role is ideal for someone with strong hands-on technical capability, deep knowledge of inverter & ESS technologies, and an ability to communicate complex concepts clearly.

What Will You Be Doing?

• Lead the technical design, integration, and deployment of commercial and industrial energy storage and inverter systems.
• Develop and review electrical single-line diagrams (SLDs), schematics, and system layouts.
• Conduct system modelling, storage sizing, and energy-yield simulations.
• Support system commissioning, configuration, and optimisation both remotely and on-site.
• Diagnose and resolve performance issues for ESS, hybrid, grid-tied, and PV-integrated systems.
• Utilise remote monitoring tools and on-site assessments to identify root causes and corrective actions.
• Act as the primary technical liaison during pre-sales, project planning, and installation phases.
• Provide guidance on system requirements, product capabilities, and integration strategies.
• Deliver technical training for internal teams, installers, and external partners.
• Ensure systems satisfy NEC, UL, IEEE, and local interconnection standards.
• Support documentation, system validation, and adherence to best-practice engineering principles.
• Gather customer insights and field feedback to help shape product improvements.
• Work closely with R&D and product teams to influence future design and functionality.

Essential Skills & Experience

• Deep technical understanding of inverter technology, PV integration, and Battery Energy Storage Systems (BESS).
• Strong capability to commission, configure, troubleshoot, and optimise energy systems in C&I applications.
• Ability to create, interpret, and review SLDs, schematics, and system architecture documents.
• Solid working knowledge of NEC, UL, IEEE and interconnection requirements.
• Experience integrating PV arrays, battery storage, and inverter systems at commercial scale.
• Excellent communication skills with the ability to explain complex concepts clearly.
• Experience conducting system modelling and performance simulations.
• Ability to collaborate across engineering, sales, and customer support teams.
• Experience delivering technical training and supporting installers or partners.

Desirable Experience

• Prior solar industry experience (installations, product companies, EPCs, utilities).
• Familiarity with UL certifications such as UL 1741 or UL 1973.
• Understanding of the broader solar and energy-storage market landscape.