Software Engineering Leader

Matthew Marshall

Scituate, Massachusetts · resumarsh.com/marsh

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About

Passionate and detail-oriented software engineering leader with extensive experience in distributed systems, cloud-native architectures, and finance. Skilled in designing and optimizing high-performance systems, leading engineering teams, and delivering critical enterprise solutions. Proven track record in leading complex technical initiatives, implementing scalable architectures, and driving operational efficiency in fast-paced environments. References available upon request.

Experience

Lead Software Engineer · SAVVI Financial, LLC

Apr 2025 – Present · Waltham, MAsealed

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  • Architect and principal author of aion (~6,200 of 6,450 commits), a declarative, multi-tenant application platform where AI agents are first-class participants under machine-checked contracts, together with the build and deploy substrate it runs on.6,200 commits
  • Mechanized the normative specification in Lean 4: a 57-RFC suite reduced to a seven-proposition kernel, with 1,400+ machine-checked theorems across 570 modules covering permission algebra, bitemporal CRDT convergence, safe schema migration, and typed-expression soundness. Proofs run as Bazel test targets, so a spec regression fails CI like any other test.1,400+ proofs
  • Stood up a self-hosted Buildbarn remote-execution and cache plane: cold clone to built in 175 s (vs. ~48-min GitHub Actions baseline), two bzlmod registries serving 100+ rules_* modules behind machine-checked conformance gates, blast-radius-scoped test selection as the merge gate, and SOC 2 evidence emitted as a control-plane byproduct.175 s

Lead Software Engineer · FundGuard, Inc.

Apr 2024 – Feb 2025 · Dedham, MA

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  • Led the development of a microservices-based portfolio benchmarking engine using gRPC and Protobuf, supporting arbitrarily complex composite index calculations, real-time FX conversion, and flexible fund performance comparisons.

Co-founder · Lotic Labs, Inc.

Apr 2016 – Apr 2024 · Boston, MA

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  • Directed NSF-funded R&D as PI for two grants (1722276 and 1927042) focused on using symbolic AI and optimization to address climate-based financial risk management. Managed personnel, budgets, timelines, and reporting requirements.2 grants
  • Optimized geospatial clustering algorithm for reinsurance customer, significantly reducing O(n2) runtime complexity for distance matrix calculations by using H3 as a discrete global grid system and parallelizing with TensorFlow.O(n²)

Freelance Full-Stack Software Developer · M Software Solutions LLC

Jan 2012 – Apr 2024

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  • Advised data engineering team for 2 years at unicorn alternative protein company on data pipeline design in GCP.
  • Developed serverless ETL in AWS Lambda for forensic accounting system, analyzing 30M transactions in PostgreSQL.

Software Engineer, Portfolio Compliance Team · Charles River Development

Oct 2012 – Jan 2015 · Burlington, MA

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  • Engineered performance and query enhancements for portfolio compliance alerts with 3x speed improvement.
  • Fixed numerous bugs and stability/performance issues in the IMS C# and Java codebases.

Software Developer in Test · Orbis Investment Management Limited

Oct 2010 – Nov 2011 · Hamilton, Bermuda

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  • Designed integration testing and quality metrics for critical parts of the fund subscription and redemption processes.
  • Deployed automated remote code coverage and instrumentation using WMI on Windows Server.

Skills

PythonJavaC#JavaScript/TypeScriptRustGoLean 4KafkaNATSSparkBeamDaskBigQueryPandasTensorFlowPyTorch

Education

B.S., Electrical Engineering & Computer Science · Massachusetts Institute of Technology

2010

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