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<head> <title>Bastian Gruber - CV</title>
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<div class="resume"> <!--tex4ht:inline--><div class="tabular"> <table id="TBL-1" class="tabular"
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class="td00"><span
class="cmbx-12">Bastian Gruber</span>&#x00A0;</td></tr><tr
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class="td00"> &#x00A0;</td>
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class="td00"> &#x00A0;</td></tr></table> </div>
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class="cmbx-10">Professional </span>&#x00A0;</td>
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class="td00">LinkedIn: <a href="https://linkedin.com/in/bastiangruber">linkedin.com/in/bastiangruber</a>&#x00A0;</td>
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class="td00">Book: <a href="https://rustwebdevelopment.com">rustwebdevelopment.com</a> &#x00A0;</td>
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class="td00">E-Mail: <a href="mailto:gruberbastian@me.com">gruberbastian@me.com</a> &#x00A0;</td>
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class="td00">Website: <a href="https://bastiangruber.ca">bastiangruber.ca</a> &#x00A0;</td></tr></table> </div></td><td class="second-address"><!--tex4ht:inline--><div class="tabular"> <table id="TBL-3" class="tabular"
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class="td00"><span
class="cmbx-10">Code </span>&#x00A0;</td>
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class="td00">GitHub: <a href="https://github.com/gruberb">github.com/gruberb</a> &#x00A0;</td>
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class="td00">Git: <a href="https://code.novanexus.ca/gruberb">code.novanexus.ca/gruberb</a>&#x00A0;</td></tr></table> </div></td></tr></table>
<h4 class="sectionHead"><a
id="x1-10000"></a><div
class="centerline"> SUMMARY </div></h4><div class="section">
<!--l. 55--><p class="noindent" >Staff Software Engineer at Mozilla, shipping Rust, C++, and Python to hundreds of millions of Firefox users.
Published author (&#8220;Rust Web Development&#8221; &#8211; Manning). Founder of Rust&amp;Tell Berlin, the largest Rust meetup
globally.
</p>
</div><h4 class="sectionHead"><a
id="x1-20000"></a><div
class="centerline"> SKILLS </div></h4><div class="section">
<!--l. 68--><p class="noindent" ><span
class="cmbx-10">Languages: </span>Rust, C++, Python, TypeScript, Go <br
class="newline" /><span
class="cmbx-10">Backend &amp; Systems: </span>Rust (Actix, Warp, Axum), Python (FastAPI), Node.js, async Rust, FFI/UniFFI
<br
class="newline" /><span
class="cmbx-10">Patterns: </span>REST, GraphQL, gRPC, distributed systems (P2P), microservices <br
class="newline" /><span
class="cmbx-10">Infrastructure: </span>AWS, Google Cloud, Docker, Kubernetes, CI/CD, Grafana <br
class="newline" /><span
class="cmbx-10">AI Tooling: </span>Claude Code, GitHub Copilot
</p>
</div><h4 class="sectionHead"><a
id="x1-30000"></a><div
class="centerline"> PROFESSIONAL EXPERIENCE </div></h4><div class="section">
<!--l. 86--><p class="noindent" ><span
class="cmsl-10">Staff Software Engineer (promoted from Senior) </span>July 2024 - Present
<br
class="newline" /><span class="company">Mozilla</span>, Remote <br
class="newline" /></p>
<ul class="itemize1">
<li class="itemize">
<!--l. 89--><p class="noindent" >Implemented Oblivious HTTP (OHTTP) from scratch in application-services (shared Rust component
cross-compiled to Swift/Kotlin via UniFFI) plus C++ and Rust for Firefox Desktop &#8211; users are now
unidentifiable when making privacy-sensitive requests across all platforms
</p></li>
<li class="itemize">
<!--l. 90--><p class="noindent" >Consolidated four separate favicon implementations into a single Image Service &#8211; extended an existing
Python/Airflow pipeline rather than building a new microservice, now serving 4 teams from one
manifest behind a GCS-backed API
</p></li>
<li class="itemize">
<!--l. 91--><p class="noindent" >Maintained Firefox Push notification service (50k req/s, sub-200ms latency): reduced memory footprint,
added circuit breakers, built Grafana dashboards
</p></li>
<li class="itemize">
<!--l. 92--><p class="noindent" >Contributor and code reviewer for UniFFI, Mozilla&#8217;s multi-language bindings generator (Rust to Kotlin,
Swift, Python, JavaScript)
</p></li>
<li class="itemize">
<!--l. 93--><p class="noindent" >Led &#8220;Rusty Fridays&#8221; internal education sessions, mentoring engineers across teams through Rust
adoption</p></li></ul>
<!--l. 96--><p class="noindent" ><span
class="cmsl-10">Senior Systems Engineer, Team Lead </span>2023 - 2024
<br
class="newline" /><span class="company">Toposware</span>, Remote <br
class="newline" />Core team of 4 building a peer-to-peer distributed network protocol from scratch in Rust. </p>
<ul class="itemize1">
<li class="itemize">
<!--l. 100--><p class="noindent" >Achieved 10x throughput per node by profiling the actual bottleneck &#8211; optimized batch processing and
serialization paths rather than redesigning the consensus layer
</p></li>
<li class="itemize">
<!--l. 101--><p class="noindent" >Led benchmark initiative that revealed nodes were compute-bound on crypto operations, not
network-limited &#8211; redirected optimization effort accordingly
</p></li>
<li class="itemize">
<!--l. 102--><p class="noindent" >Built an EVM bridge connecting external Ethereum-compatible chains to the core network</p></li></ul>
<!--l. 105--><p class="noindent" ><span
class="cmsl-10">Senior Software Engineer </span>2022 - 2023
<br
class="newline" /><span class="company">Centrifuge</span>, Remote <br
class="newline" />Protocol team building DeFi applications on Substrate/Polkadot in Rust. </p>
<ul class="itemize1">
<li class="itemize">
<!--l. 109--><p class="noindent" >Implemented on-chain fund pool mutations &#8211; core feature for the lending protocol enabling live capital
allocation adjustments
</p></li>
<li class="itemize">
<!--l. 110--><p class="noindent" >Replaced manual documentation with CI-driven auto-generation from Rust source &#8211; eliminated
persistent drift between code and public docs</p></li></ul>
<!--l. 113--><p class="noindent" ><span
class="cmsl-10">Author, &#8220;Rust Web Development&#8221; </span>2020 - 2022
<br
class="newline" /><span class="company">Manning Publications</span> <br
class="newline" />Published end-to-end guide covering async Rust, web frameworks, and production deployment.
</p><!--l. 119--><p class="noindent" ><span
class="cmsl-10">Sr. Solutions Architect (promoted from SA) </span>2020 - 2022
<br
class="newline" /><span class="company">Twilio Inc.</span>, Remote <br
class="newline" /></p>
<ul class="itemize1">
<li class="itemize">
<!--l. 122--><p class="noindent" >Technical lead for Fortune 500 engagements: debugged latency issues, redesigned messaging flows,
advised on architectures matching client team size and resources
</p></li>
<li class="itemize">
<!--l. 123--><p class="noindent" >Created reusable engagement playbooks adopted across the EMEA Professional Services team</p></li></ul>
<!--l. 126--><p class="noindent" ><span
class="cmsl-10">Systems Engineer </span>2019 - 2020
<br
class="newline" /><span class="company">Kraken Digital Currency Exchange</span>, Remote <br
class="newline" /></p>
<ul class="itemize1">
<li class="itemize">
<!--l. 129--><p class="noindent" >Migrated core banking services and API gateway from PHP to Rust, achieving 100x throughput
improvement &#8211; enabling order-of-magnitude traffic growth without scaling hardware
</p></li>
<li class="itemize">
<!--l. 130--><p class="noindent" >Worked directly with the CTO on privacy-focused architectural decisions for the trading platform</p></li></ul>
<!--l. 135--><p class="noindent" ><span
class="cmsl-10">Earlier Career </span>2014 - 2019
<br
class="newline" />Sr. Software Engineer across enterprise clients (<span class="company">OSRAM</span>, K<>rber Digital, <span class="company">GIATA</span>, <span class="company">Avenga</span>) and startups (Dalia
Research, blogfoster, smartB) in Berlin. </p>
<ul class="itemize1">
<li class="itemize">
<!--l. 138--><p class="noindent" >Founded &#8220;Rust &amp; Tell Berlin&#8221; meetup &#8211; grew it into the largest Rust meetup globally, still running
years later
</p></li>
<li class="itemize">
<!--l. 139--><p class="noindent" >Designed IoT authentication infrastructure at <span class="company">OSRAM</span> for thousands of connected devices (Node.js,
Go, Lua)
</p></li>
<li class="itemize">
<!--l. 140--><p class="noindent" >First engineering hire at K<>rber Digital: built real-time sensor data pipelines on AWS
</p></li>
<li class="itemize">
<!--l. 141--><p class="noindent" >Decomposed <span class="company">GIATA</span>&#8217;s monolithic ERP into 6 Docker-based microservices, improving system scalability</p></li></ul>
</div><h4 class="sectionHead"><a
id="x1-40000"></a><div
class="centerline"> EDUCATION </div></h4><div class="section">
<!--l. 148--><p class="noindent" ><span
class="cmsl-10">Bachelor of Science, Computer Science </span><br
class="newline" /><span class="company">TH Ingolstadt</span> &#8211; Scholarship from Allianz Deutschland AG (fully funded)
</p>
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