Software Engineer (Java Generalist)
Location
United States
Posted
32 days ago
Salary
Not specified
Job Description
Software Engineer (Java Generalist)
Location: US - Open to Europe if happy to overlap with EST
Compensation: $160K - $200K
Our firm has been retained by a high-growth, mission-driven technology company to find a world-class Principal Java Systems Engineer. This is not a role for "glue" engineers who connect off-the-shelf components; this is for the engineer who sees performance ceilings as a personal challenge and prefers squeezing 30% more throughput out of clean Java over renting 30% more cloud compute.
Our client is building a high-performance, publicly visible immutable ledger. In an industry where people "move fast and break things," this team operates like NASA: moving fast while ensuring correctness, performance, and efficiency are 100% right the first time. You will join an elite team where you aren't a cog in the machine—you are the architect building it.
Key Responsibilities:
- First-Principles Engineering: Invent new protocols, data structures, and algorithms to solve problems no one else has tackled.
- Low-Latency Systems: Design and write high-throughput Java systems from scratch, tuning memory down to the byte and performance to the nanosecond.
- Core Infrastructure: Build parsers, interpreters, and performance profilers from the ground up.
- Technical Leadership: Mentor senior and staff engineers while making architectural decisions that ensure the correctness of a global ledger.
- Optimization: Switch fluently between high-level system design and single-instruction-level optimization.
- Rigorous Testing: Build harnesses and tests to ensure mission-critical financial software never breaks.
Job Requirements
- Experience: 10+ years of professional software development experience.
- JVM Mastery: Deep understanding of the JVM, including memory models, threading, GC behavior, and performance profiling.
- Systems Background: Experience with parsers, interpreters, compilers, or other language tooling.
- CS Fundamentals: Strong grasp of data structures, algorithms, concurrency, and high-performance code with minimal dependencies.
- Proven Delivery: Ability to deliver a high-performance server from scratch using just the JDK and an IDE.
- Tooling: Proficient with JMH, PBJ, async-profiler, JFR, YourKit, or similar performance tools.
- Education: Master’s degree in Computer Science or equivalent deep industry experience.
- Preferred Good-to-Have Skills:
- Experience in distributed systems or blockchain technology.
- Knowledge of cryptographic primitives (hashes, public/private keys).
- Familiarity with Web3 tools, smart contract platforms (EVM), or high-frequency trading (HFT) systems.
Benefits
- Career-Defining Impact: Build the foundational infrastructure for the next generation of the digital economy.
- Technical Autonomy: Work on a small team with high ownership and the freedom to craft brilliant systems "the right way."
- Intellectual Challenge: Solve puzzles that require deep-stack engineering knowledge rather than standard API integration.
- Professional Growth: Mentorship from and for some of the best minds in distributed systems.
- Compensation: Highly competitive salary and equity packages reflecting the "Principal" level of this role.
- Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.
- Commitment to Equality and Accessibility:
- At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.
- MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.
Related Guides
Related Job Pages
More Software Engineer Jobs
Node.js Software Engineer 2
MadwireMadwire® is a technology company that provides business management and marketing software and services for SMBs and franchises. Madwire’s brands — Marketing 360®, Websites 360®, SpaceCraft™ and Top Rated Local® — enable SMBs to do everything from building a website, to accepting payments, managing leads and customers, appointments, online reviews, social media, business listings, content marketing, multi-channel digital advertising campaigns and more. Madwire has over 20,000 active paid subscribers and over 4,000 online reviews with an impressive average rating of 4.7+ stars. Madwire was ranked by Glassdoor as one of the country's Best Places to Work for businesses with 1,000 employees or less (ranked #1 overall in 2016). In addition to that, JB & Co-CEO Joe Kellogg were recognized as Glassdoor's Highest Rated CEOs for 3 consecutive years (#1 overall in 2016). In addition to that, Madwire has made the INC 5000 Fastest Growing Company list a rare 8 years in a row. Madwire was founded in 2009 with the mission of enriching communities by helping small businesses grow. Madwire is headquartered in Fort Collins, Colorado with offices in Austin, Texas and currently employs nearly 700 employees. Learn More Madwire's Brands At: Madwire.com Marketing360.com Websites360.com TopRatedLocal.com GoSpaceCraft.com
This is a US-based position, our offices are located in Fort Collins, CO. This position can be in-office, remote* (in approved US states), or a hybrid of the two.Who you areYou are an expert troubleshooter and powerful builder of first in class Node.js...
Linux Embedded Software Engineer
PrivafyAbout Privafy We are redefining how to protect Data-in-Motion. Data-in-motion has rapidly become the most vulnerable part of every organization’s information and communication architecture. As organizations embrace the openness of the Internet and move data and applications to the cloud, traditional network security technologies and systems are no longer effective in protecting data as it moves between cloud workloads and applications. The Internet is now the new network – affording businesses and employees to easily connect with customers, partners, and each other from any location. But as data traverses between locations – it’s increasingly at risk from a multitude of vectors and threat actors. Privafy’s security-as-a-service application secures data wherever it travels. The company’s cloud-native technology integrates all the functionality of traditional point solutions, such as encryption, firewall, DDoS protection, IDS/IPS and DLP technology, to provide comprehensive data protection as it moves between locations, clouds, mobile devices, and IoT. Deployed in minutes, Privafy works seamlessly with existing infrastructure to protect organizations of all sizes against today’s most damaging data-centric attacks, all while disrupting the cost associated with complex, archaic network solutions.
Develop embedded software in C/C++ for micro-controller and Linux/Android systems, integrating hardware security into IoT devices. Involvement in design, development, and testing stages.
Quantitative Risk Estimation Engineer
Kodiak RoboticsKodiak Robotics is an autonomous technology company redefining the long-haul trucking industry. We believe self-driving trucks will be the first economically viable application of autonomous vehicle technology. We founded Kodiak in the spring of 2018 to make that belief a reality. Safety is our top priority. We are taking a safe and responsible approach to developing and testing our technology. We are proud to work with some of the best in the business. We’ve built a world class team of technologists from leading autonomous driving programs who know the industry inside and out. Our combined experience and commitment to the vision will allow us to put self-driving technology on the road in the safest and most effective way.
As an Autonomy Software Systems Engineer, you will develop and validate advanced safety standards for autonomous vehicles, implement Bayesian risk models, and perform hazard analyses.
Senior Software Engineer (Behance – Graph & Recommendations)
AdobeChanging the world through digital experiences.
The role involves designing and operating a Neo4j-based graph for content recommendations and discovery while mentoring engineers and leading architecture reviews.
