Maintenance Technician – Welder

Antora Energy is seeking a Maintenance Technician – Welder in Big Stone City, SD, to perform mechanical and electrical maintenance on plant equipment. The role focuses on high-quality welding and metal fabrication to ensure the reliability of plant systems. Responsibilities include executing various welding processes, supporting maintenance activities, and maintaining compliance with safety regulations. Candidates should have a high school diploma and at least 3 years of welding experience.
Antora builds and deploys thermal batteries to power always-on industrial operations with low-cost energy. Factory-built in the United States, Antora’s modular thermal batteries deliver reliable heat and power, enabling industrial facilities of any size to decarbonize predictably and profitably. Antora is electrifying global industry while supporting U.S. manufacturing jobs, lowering costs for energy consumers, and enhancing the competitiveness of American industry.

We are growing our company with people who put team and mission first, value connection through laughter and joy, and build with humility and openness. We are committed to continue building a diverse, passionate, and creative team dedicated to a future where every industrial facility, everywhere on earth, is powered by abundant, clean, low-cost energy.

Position Summary

The Maintenance Technician performs mechanical and/or electrical maintenance on plant equipment to ensure optimal efficiency, reliability, and overall facility condition.

Responds to call-outs as needed to maintain plant availability. Primary responsibility to perform high-quality welding and metal fabrication tasks to support the repair, modification, and structural integrity of plant systems and equipment. While primarily focused on welding projects, they will also support maintenance activities, such as module maintenance, and plant improvement projects.

Supports planning efforts and inventory control by following proper requisition procedures for tools, parts, and supplies. Prepares reports as required by management and plant protocols. Maintains compliance with all local, state, and federal regulations, and ensures adherence to plant safety and operational procedures. Actively promotes and maintains a safe and orderly work environment.

Roles & Responsibilities

Perform code-compliant welding on piping, pressure vessels, heat exchangers, boiler tubes, ductwork, and support structures

Execute various welding processes (e.g., SMAW, GTAW/TIG, GMAW/MIG, FCAW) on materials including carbon steel, stainless steel, and specialty alloys

Fabricate brackets, frames, guards, and other components from shop drawings, isometrics, or field measurements

Use cutting, grinding, beveling, and forming tools for prep work and post-weld finishing

Identify opportunities for plant improvements and related maintenance activities, equipment reliability, and safety

Accountable for tasks where errors can have significant consequences and may not be subject to direct oversight.

Interpret blueprints, P&IDs, and welding symbols to ensure proper fit-up and weld quality

Maintain traceability and documentation of weld procedures, repairs, and materials used

May coordinate and support others in completing assignments within defined schedules and priorities.

Support outage and turnaround work by preparing, modifying, or replacing large welded assemblies under time-sensitive conditions

Key Qualifications

High school diploma or equivalent; completion of technical/vocational training is strongly preferred.

Professional with 3+ years of directly related experience with welding, including a solid understanding of health and safety regulations.

Proficiency in multiple welding processes: SMAW, TIG, MIG & FCAW

Skilled in welding carbon steel, stainless steel, and alloy steels used in high-temperature/pressure service

Experience fabricating and repairing components like:

Capable of interpreting blueprints, P&IDs, and welding symbols

Proficient in operating cutting, grinding, and forming tools (plasma cutters, torches, bevelers, etc.)

Strong understanding of hot work safety protocols, including fire watch, gas testing, and confined space entry

Additional Qualifications Desired

Hands-on experience with maintenance of industrial steam boilers, battery storage systems, and high temperature fluid loops.

Experience with boiler operations and steam systems

Experience with lifting equipment such as telehandlers and small cranes