Role overview

Qualifications

BESS industry experience
Degree in Engineering, Science, or a related field, or equivalent demonstrated BESS experience
Comfortable with Python in an analytical context
Deep knowledge of lithium-ion battery behavior, degradation mechanisms, and capacity fade

Responsibilities

Serving as primary technical contact for US and Americas customers
Supporting pre-sales alongside Sales and Solution Engineering
Leading technical onboarding and managing KPI rollout and validation
Leading performance analysis during commissioning and augmentation

Key facts

Remote from: Canada, South America, North America, United States, Central America, Latin America
Full time
Senior (5-10 years)
Field Engineer (Solutions)
English, Spanish

Hard skills

Performance Analysis Data Availability Python (Programming Language) Data Processing Databricks Modbus Customer Centricity Organizational Structure

Other skills

Communication

About the company

TWAICE

Cleantech / Climate Tech

TWAICE is the leading provider of battery analytics software, helping companies working with batteries to eliminate risks and enable opportunities. Customers using TWAICE outperform their peers by saving time & costs while increasing battery performance, safety & lifetime. Uniquely combining deep battery knowledge and artificial intelligence on a scalable analytics platform, TWAICE generates actionable insights at every step of the battery lifecycle. In addition to enabling TWAICE products, the analytics platform is a launchpad for customer and partner solutions, leveraging an entire ecosystem of market leaders. TWAICE has raised over 75mn$ funding from leading investors (Coatue, Energize Ventures, Creandum, Cherry, Speedinvest, UVC) and supports major clients from the EV and Energy Storage industry like Porsche, Mercedes-Benz, Chargepoint, Fluence, Verbund, mn8 and many more.

Company details

Company typeSME

IndustryCleantech / Climate Tech

Company size51 - 200

Links

Website LinkedIn See all jobs

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Job description

About the role

The energy transition runs on batteries. As renewable energy reshapes the global power system, batteries are taking center stage. Making them reliable, safe and scalable are the defining challenges of the energy transition. At TWAICE, we build software that turns battery data into insights, so that we can help the world reach net zero faster.

As a (Senior) BESS Engineer at TWAICE, you sit at the intersection of customer-facing engineering and battery performance analysis. You will be TWAICE’s primary technical point of contact for asset owners, O&M teams, and developers across the Americas. The role spans pre-sales through in-life support: technical discovery, data-readiness assessments, customer onboarding, KPI rollout, and performance analysis for commissioning and augmentation events.

Your daily business will involve

Serving as primary technical contact for US and Americas customers, building relationships with both technical and commercial stakeholders
Supporting pre-sales alongside Sales and Solution Engineering: technical discovery, data-readiness assessments, and architecture discussions
Leading technical onboarding: reviewing Single Line Diagrams, mapping sensor hierarchies (cell to string to rack to enclosure to PCS to system), and configuring sensor specifications in Databricks before KPI rollout
Managing KPI rollout and validation: releasing TWAICE KPIs, and diagnosing sensor data quality issues, insufficient cycling data, and aggregation errors
Leading performance analysis during commissioning and augmentation: interpreting capacity test results, flagging anomalies (cell imbalances, voltage spread issues, RTE gaps), and producing executive-ready outputs.
Surfacing recurring product gaps and customer feedback to Product and Engineering
Running platform training for performance engineers, O&M leads, and asset managers
Up to 25% travel for customer meetings and on-site visits across the Americas

Your profile

BESS industry experience is required. You have worked as a performance engineer, systems engineer, or O&M engineer. You know what happens inside a BESS project from commissioning through the first year of operation
Degree in Engineering, Science, or a related field, or equivalent demonstrated BESS experience
Comfortable with Python in an analytical context: processing sensor data, validating signal quality, debugging anomalies. Databricks experience is a plus
Deep knowledge of lithium-ion battery behavior, degradation mechanisms, capacity fade, DC internal resistance, SoC estimation, and cell voltage/temperature imbalances
Familiarity with BESS data flows and ingestion protocols (Modbus, IEC-104, OPC-UA, REST API, SFTP)
Working knowledge with US wholesale power markets and ISOs/RTOs (CAISO, ERCOT, PJM, MISO, SPP, ISO-NE, NYISO)
Clear communicator, strong English required; Spanish is a plus for broader Americas coverage
Organized, customer-focused, and comfortable in a fast-moving startup

Please consider that the requirements are not listed in order of relevance. We know that it is close to impossible to fulfill all requirements. If you feel that you can make a valuable contribution, we’d be delighted to receive your application regardless.

What we offer

Flexible Working: We trust you to get the job done. Remote-first with autonomy on how and where you deliver. Everyone comes together for our annual kick-off at Munich HQ.
Equity Participation: Every employee is offered a stock-option plan so you can share in TWAICE’s success.
‍‍Perks: Health coverage, 401(k), team offsites twice a year.

Social Media

See what TWAICE is up to https://www.linkedin.com/company/twaice/