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Marcus Bello

Senior Software Engineer

Profile

Backend-leaning full-stack engineer with nine years building and scaling web services. I like taking a slow, flaky system and making it boring: clear boundaries, good tests, and dashboards that tell the truth. Comfortable owning a feature from database schema to production rollout.

Experience

Senior Software Engineer

Larkfield Systems
2020 to Present
  • Re-architected the billing service around an event queue, cutting failed charges by 40% and making retries auditable.
  • Cut median API latency from 480ms to 120ms by profiling hot paths and adding a read-through cache.
  • Mentor three engineers and run the team's design-review rotation.
2022 to PresentPayments
2020 to 2022Platform

Software Engineer

Cartwright Commerce
2016 to 2020
  • Built the checkout API serving 2M orders a month across web and mobile clients.
  • Introduced integration tests to a legacy codebase, taking release rollbacks from weekly to rare.

Recommendations

Marcus is the person you want on the incident bridge: calm, fast, and he fixes the cause, not the symptom.
Rachel Adeyemi · Engineering Manager
Tom Delaney · Staff Engineer

Skills

  • TypeScript
  • Go
  • PostgreSQL
  • Node.js
  • REST & gRPC APIs
  • Docker
  • AWS
  • CI/CD
  • System Design
  • Observability

Languages

EnglishNative
FrenchConversational

Clients

Internal platform teams,Payments,Mobile,Data

Education

B.S., Computer Science
State University, 2012 to 2016
Marcus Bello · Senior Software Engineer

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Profile

Product manager who starts from the problem, not the feature. Seven years shipping B2B and consumer products, most of them in messy zero-to-one territory. I write the crisp one-pager, get engineering and design pointed the same way, and cut scope without cutting the point.

Experience

Tandem Mobile

Senior Product Manager · 2021 to Present
  • Own the activation funnel; a rebuilt onboarding flow lifted week-one retention from 34% to 51%.
  • Killed two underused features and redirected the roadmap toward the workflow customers actually asked for.
  • Run a lightweight discovery cadence: five customer calls a week feeding a public problem backlog.

Kestrel Apps

Product Manager · 2018 to 2021
  • Launched the team-plan tier, which grew to a third of revenue within a year.
  • Partnered with data to replace opinion-led prioritization with a simple impact-versus-effort model the whole team trusted.

Skills

Product StrategyDiscovery & ResearchRoadmappingA/B TestingSQLAnalyticsStakeholder AlignmentGo-to-MarketWriting

Languages

EnglishNative
HindiFluent

Clients

Sales, Support, Design, Data

Recommendations

Priya has the rare knack of saying no to good ideas so the team can ship the right one.
Owen Fitzgerald · VP of Product
Mei Lin · Design Lead

Education

B.A., Economics
Metropolitan University, 2011 to 2015
Minimal

Edward Hartley

Financial Controller

Profile

Financial controller with twelve years in corporate finance, spanning audit, FP&A and month-end ownership. I close the books cleanly, keep the auditors comfortable, and turn a sprawl of spreadsheets into a forecast leadership can actually plan against. CPA-qualified.

Experience

Financial Controller

2019 to Present
Ashcombe Capital Partners
  • Own the monthly close for a $180M revenue business, bringing the cycle from eleven days to six.
  • Rebuilt the annual budgeting process, giving department heads variance reports they read without an accountant present.
  • Led the finance side of two acquisitions, including integration of ledgers and controls.

Senior Accountant

2013 to 2019
Brookmoor Advisory
  • Managed statutory reporting and the external audit for a portfolio of mid-market clients.
  • Automated the reconciliation workbook, removing a recurring two-day manual task each month.

Education

B.Sc., Accounting & Finance, Northgate University
2007 to 2011

Skills

Financial Reporting, FP&A, Month-End Close, Budgeting & Forecasting, Audit, US GAAP, Excel Modeling, NetSuite, Internal Controls

Languages

EnglishNativeGermanProfessional

Clients

Board & Leadership, External Auditors, Department Heads

Recommendations

Edward's close is the one number I never have to double-check. Rare, and worth a great deal.
Margaret Coyle · Chief Financial Officer
David Rosenthal · Audit Partner
Classic

Skills

Python, SQL, pandas, scikit-learn, dbt, Experimentation, Statistics, Data Visualization, Airflow, Snowflake

Profile

Data scientist with six years turning noisy product data into decisions people act on. Equal parts modeling and plumbing: I build the pipeline, ship the model, and then make sure someone actually reads the result. Happiest when a dashboard changes a meeting.

Experience

Data Scientist

2021 to Present
Tidewater Analytics
  • Built a churn model that flags at-risk accounts a month out; retention plays off it recovered an estimated $1.2M ARR.
  • Replaced a fragile nightly SQL job with a tested pipeline in Python and dbt, cutting data incidents by two-thirds.
  • Set up experiment tooling so product teams can read A/B results without asking analytics.

Data Analyst

2018 to 2021
Quill Metrics
  • Owned the executive metrics layer, from raw events to the numbers on the board deck.
  • Taught a weekly SQL clinic that took self-serve reporting from a bottleneck to routine.

Education

M.Sc., StatisticsInstitute of Technology
2016 to 2018

Clients

Product, Growth, Finance, Leadership

Languages

EnglishFluentMandarinNative

Recommendations

Wei doesn't just answer the question you asked. He answers the one you should have asked.
Hannah Brooks · Head of Data
Carlos Mendez · Product Lead
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