Natnael Mengesha

the build log

Timeline

Selected work, shown working — newest at the top, the origin at the bottom. Enterprise cloud platforms, engineering leadership, and the learning along the way.

  1. The log continues.

  2. the venture — tacendum.com

  3. 2026 — doctoral research

    • Doctor of Engineering — Artificial Intelligence & Machine LearningGeorge Washington University · in progress

  4. 2026 — the certification sprint

  5. 2024–present · Guidehouse — Associate Principal Architect, AWS Platform

    08 The foundation under ~45 accounts

    Org · Shared services · Network · Security & CLM · DR (RPO/RTO) · Ops & cost · AI standards

    accounts in the org
    ~45
    program network delivered
    $32M
    person team · six-month build
    ~15
    saved, infrastructure and support
    ~$180K/yr
    to stand up WorkSpaces
    <1 day

    Deep dives: Landing zone → $32M network → GenAI on Bedrock →

    initializing…

    On the record

    • AWS Organizations structure and operating model for the firm — OUs, account ownership, central governance, ~45 accounts.
    • Multi-Region shared services under every account — Transit Gateway, network firewall, CloudFront edge, ACM, Private CA.
    • Standards for KMS, IAM, EKS/ECS, DR tiers — and how engineers and AI assistants reach AWS.
    • Network for a $32M program — segmented VPCs, routing, security baselines, landing-zone integration, on schedule.
    • Lead architect, document processing for insurance clients — Textract/Comprehend extract, Bedrock assembles, Step Functions runs user-built workflows.
    • Bedrock enabled enterprise-wide; AgentCore Gateway standard adopted by 2 teams; advisor to 3 client teams.
    • Support model standardized — account-level Business Support found stacked on the org plan.

  6. Sharpening the saw — study & certification

  7. 2019–2024 · Accenture Federal Services, U.S. Department of Education — Cloud Engineer → Senior Cloud Engineer → Lead Cloud Architect

    06 Cloud engineering to architecture leadership

    Federal cloud modernization · Engineering leadership · Automation · Operational improvement

    Contributions

    • Progressed from hands-on cloud engineering to senior engineering and architecture leadership.
    • Supported cloud modernization and service reliability in a federal environment.
    • Led and mentored engineers across disciplines, with a focus on collaboration and delivery.
    • Improved engineering practices, automation, and operational efficiency.

    Above and Beyond Award · People Developer (2022)

  8. 2018–2019 · Capgemini — Cloud Consultant, 9-person offshore team lead

    05 An insurance carrier leaves the datacenter

    Insurance carrier · Network & AWS foundation · Application migration · Well-Architected reviews

    initializing…

    rehost replatform retire

    On the record

    • Network infrastructure and the AWS foundation around it, then the applications migrated onto it.
    • Led a 9-person offshore development team through the migration.
    • Multi-tenant reference architecture and Well-Architected reviews across engagements; workloads onto ECS/EKS for release frequency.

  9. 2017–2018 · Cognizant — Cloud Developer

    04 IAM policy evaluation

    VPCs, subnets, VPN · Logging to SIEM · CloudFormation IaC · Internal AWS training · Least privilege

    request

     
     
     
    evaluation order
     
     
     
     
    deciding statement
     
     
     
     
    initializing…
     
     
     
    On the record
     
       
    • A client's AWS network foundation — VPCs, subnets, VPN — with CloudWatch and CloudTrail feeding the SIEM.
      •  
    • Infrastructure as code introduced (CloudFormation); internal AWS training run; operations automated with Ansible.
      •  
     
     
     
    10.   
  10.  
     
     
    2017 · Duostech — Ground Truth Engineer
     
    03 Trains running hotter than they should
     
    Thermal detection · Ground-truth datasets · Accuracy validation · One algorithm authored · First AWS setup
     
     
      
    initializing…
     
      detection
 validated
 relabeled

     
     
     
    On the record
     
       
    • Tested the thermal-detection algorithms behind Duos's railcar inspection systems — and wrote one.
      •  
    • Ground-truth datasets built to validate detection accuracy.
      •  
    • Initial AWS account setup — IAM standards, network infrastructure, the first EC2 migrations.
      •  
     
     
     
    11.   
  11.  
     
     
    B.S. Computer Science · University of North Florida
     
    02 C− compiler
     
    Lexical · Syntax · Semantic · Code generation
     
     
     
     
     
    source.c−
     
     
     
     
    1 lexical
     
     
     
     
    2 syntax — AST
     
     
     
     
    3 semantic — symbols & types
     
     
     
     
    4 codegen — MIPS
     
     
     
     
    initializing…
     
     
     
    12.   
  12.  
     
     
    B.S. Computer Science · University of North Florida
     
    01 A* shortest path
     
    Heuristic search · Weighted grids · Manhattan distance
     
     
      
    initializing…
     
      cost 1
 cost 3
 wall
 frontier
 closed · g
 path

     
     
     
    13.  
  13.   
    Where the log begins.
     
    14.  
 
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