Senior Software Engineer - UltraGridHypervolt • Palo Alto, CA, United States

Senior Software Engineer - UltraGrid

Hypervolt • Palo Alto, CA, United States

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About Hypervolt Limited

Hypervolt is at the forefront of the electric vehicle charging revolution, dedicated to providing innovative and reliable EV charging solutions. We launched in 2021 with the bold ambition to transform the EV charging space through a relentless focus on the customer experience, great software, and beautifully designed British hardware.

In a short timeframe, we became Trustpilot's highest rated EV charging manufacturer in the industry . We are proud to have been named the third fastest growing company in the UK, as part of the Deloitte Fast 50 , and 6th fastest growing company in EMEA, as part of the Deloitte Fast 500 .

UltraGrid

UltraGrid is the core engine behind Hypervolt's applications. It features a soft real-time mechanism for controlling and monitoring distributed energy assets, streaming over 100,000 events per day from each connected node on the grid—all at incredibly low operating costs.

Designed for sub-second, multi-gigawatt grid-balancing, UltraGrid is built to be a critical component of a nation's energy security, boasting sub-50ms P95 and intra-system transit times with a P99 of under 6 milliseconds. Its core is deeply rooted in performance engineering : every thread, every byte allocated, and every shred of memory not garbage collected on time is accounted for.

Requirements

Extensive Experience & Technical Mastery :

10+ years of professional software development experience, with a strong focus on architecting, optimizing, and delivering performance-critical systems.

Deep expertise in Java, Scala and the JDK, leveraging the Java ecosystem for high-performance applications. Proficiency in Rust is a bonus.

Experience with NixOS is considered a huge plus.

Performance Engineering Excellence :

Proven ability to diagnose, profile, and optimize complex systems using advanced performance analysis tools and methodologies.

Demonstrated experience in tuning multi-threaded and parallel computing environments, managing concurrency, and applying lock-free designs for efficient resource utilization.

Familiarity with performance engineering technologies and low-cost always on profiling, metrics and observability.

Architectural & Systems Insight :

Extensive understanding of foundational computer science principles, data structures, and algorithms.

Extensive understanding of networking and fundamental building blocks of the Internet.

Firm grasp of distributed consensus algorithms and their practical applications in building scalable, reliable systems.

Innovative Problem Solving & Mentorship :

Exceptional analytical skills to identify and resolve intricate performance bottlenecks in production-level systems.

Experience driving technical excellence and fostering a culture of continuous improvement.

Collaboration & Communication :

Excellent communication skills with the ability to articulate complex technical concepts to technical and non-technical stakeholders.

Proven success collaborating with cross-functional teams, including close partnerships with SREs and automation specialists in fast-paced, dynamic environments.

Educational Background :

A Bachelor's degree in Computer Science, Engineering, or a related field or equivalent industry experience. Advanced degrees or relevant certifications are a plus.

A PhD in computer science or an interest in performance engineering and distributed consensus algorithms is a big bonus.

Bonus Qualifications

Previous experience contributing to a mainstream Apache project, preferably involving the JDK.

Prior work in a performance engineering environment at leading tech companies like Netflix or Twitter.

Strong experience working with resource right-sizing and developing deeply cost-optimized code.

Previous experience working on a core database engine, such as building a database from the ground up.

You enjoy reading and writing academic computer science papers and have a list of favourites if queried by the team.

You're not worried about AI code completion taking your job anytime soon.

Benefits

Competitive Compensation : We will pay you a sum of money every month.

Stock options : Everyone says this, but we reached Series D levels with less than $10M in total funding.

Comprehensive Coverage : Health, dental, and vision plans, plus wellness and mental health support.

Work-Life Flexibility : You can work remotely or come to the office, with an expected high output and great team dynamic.

Additional Perks : We'll buy you a laptop, and IT supports your custom Arch Linux distro.

Innovative Environment : A culture like no other, working with peers who value exceptionally good software.

Be persistent, accountable, and dare to dream

We operate in a fast-paced, highly collaborative environment at Hypervolt. We should always strive to treat people how they wish to be treated and remember the voting power of customers.

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Senior Software Engineer • Palo Alto, CA, United States