Distributed Systems · Erlang/OTP · IoT/Telecom · Cloud Infra

Dat Nguyen

Senior Erlang/OTP Engineer · Backend Architecture

Fault-tolerant Erlang/OTP systems for telecom, networking and IoT.

10+ years designing and running resilient backends for telecom signalling, network automation, messaging and IoT. I focus on supervision, observability and calm, predictable production.

Availability: Open to senior and lead remote backend roles

erl — dat@cv

1> dat:whoami().

{senior_erlang_engineer, backend_architecture}

2> dat:domains().

[telecom, network_automation, messaging, iot]

3> dat:principles().

[let_it_crash, supervise, observe]

4> net_adm:ping('dat@cv').

pong

5>

Click a worker to crash it · click a node to take it down · let it crash · failover

About

I start from OTP supervision and let-it-crash discipline, then instrument services so production stays observable and predictable. I ship pragmatic increments, debug concurrency under load, and share OTP design and BEAM runtime lessons with teammates.

10+
Years building Erlang/OTP systems
6
Production protocols: SIP · Diameter · Megaco · NETCONF · RESTCONF · TLS
4
Domains: telecom · network automation · messaging · IoT
1
IEEE ATC 2021 paper

Experience

Newest role first · reading the logconsumer offset: 4 · lag: 0

offset: 42023-06 → present
5GenCare
Principal Backend Architect — Erlang/OTP
Hong Kong · RemoteIoTremote
- Sole full-time Erlang engineer owning the distributed IoT/AIoT backend (Erlang/OTP, Mnesia) for baby-monitor camera products serving ~150,000 users, mostly in the US.
- Ran distributed Erlang clusters with multiple nodes on AWS for nursery-camera brands (Motorola Nursery, ChillaxCare, Salus), with fault-tolerant services and Prometheus monitoring for telemetry and device management.
- Managed the product's AWS infrastructure end to end — EC2, S3, SES, SNS, Route 53, CloudWatch, CloudTrail and Grafana — covering compute, storage, email and push notifications, DNS, monitoring and audit logging.
- Led Docker deployments through GitLab CI for container-based backend releases within an 8-person product team.
- Erlang/OTP
- Mnesia
- AWS
- Grafana
- Docker
- GitLab CI
- PostgreSQL
- Prometheus
- TLS/OpenSSL
offset: 32022-06 → 2023-06
Precision Development (PxD)
Senior Full-Stack Engineer — Cloud Systems
Newton, Massachusetts · RemoteTelecomremote
- Built distributed voice and text services with Erlang and FreeSWITCH reaching 100,000–200,000 farmers in low-connectivity regions, mostly over IVR, SMS and WhatsApp.
- Designed Flask and Cowboy APIs integrating USSD, IVR, SMS, WhatsApp, and Telegram communication flows.
- Maintained 5–6 production servers across locations, instrumenting time-sensitive communication paths with metrics and tracing to diagnose production faults.
- Worked in a 7-person team spread across the US, India, Kenya and Vietnam.
- Erlang
- Python
- Flask
- Erlang Cowboy
- FreeSWITCH
- USSD/IVR/SMS
- WhatsApp/Telegram APIs
- Docker
- AWS
- PostgreSQL
offset: 22020-01 → 2022-06
DEK Technologies Vietnam
Erlang Consultant for Cisco NSO (via DEK Technologies)
Ho Chi Minh City, VietnamNetwork automationremote
- Delivered Cisco NSO network automation services with Erlang, YANG, NETCONF, and RESTCONF in a 6-person Vietnam–Sweden team.
- Mapped YANG network models into maintainable domain logic using Domain-Driven Design.
- Resolved concurrency defects in Erlang network automation services, strengthening fault tolerance.
- Erlang
- Python
- Cisco NSO
- YANG
- NETCONF
- RESTCONF
- Jenkins
- Emacs Lisp
- Bash
offset: 12019-10 → 2019-12
DEK Technologies Sweden
Erlang Consultant for Cisco (via DEK Technologies)
Stockholm, SwedenNetwork automationonsite
- Worked onsite in Stockholm with the Swedish side of the 6-person team, integrating Erlang and YANG services with Cisco's architecture team.
- Led OTP design and BEAM optimization sessions, transferring runtime knowledge to the engineering team.
- Erlang
- YANG
- C++
- NETCONF
- RESTCONF
- Jenkins
- Jira
offset: 02016-11 → 2019-10
DEK Technologies Vietnam
Erlang Consultant for Ericsson IMS (via DEK Technologies)
Ho Chi Minh City, VietnamTelecomonsite
- Developed Ericsson IMS Session Border Gateway (SBG) components for media control and SIP, Diameter, and Megaco protocol handling in an 8-person Vietnam–Sweden team with daily cross-site syncs.
- Automated Jenkins CI pipelines for Erlang and Python telecom components, making build and test workflows repeatable.
- Led testing across IMS protocol and media-control paths using Wireshark.
- Erlang
- Python
- IMS
- SIP
- Diameter
- Megaco
- Jenkins
- Wireshark

Skills

Restart strategy:as designedone_for_oneone_for_allrest_for_one

Click a skill — it crashes and its supervisor restarts it.=SUPERVISOR REPORT= sup: dat_sup, status: running (all workers alive)

dat_supsupervisor
- Erlang/OTP coreone_for_one (isolated)
- Distributed systemsrest_for_one (downstream)
- Telecom & networking protocolsone_for_one (isolated)
- Data & storageone_for_one (isolated)
- Cloud, observability & testingone_for_all (group)

Projects

erl-trace
Emacs Lisp tool for inserting Erlang trace and debug logging with customizable output formats.
- Erlang
- Emacs Lisp
- Tracing
datnguyen-tt/erl-trace
erlang_ts
Emacs Lisp project providing an Erlang layer for Spacemacs with EDTS integration.
- Erlang
- Spacemacs
- EDTS
datnguyen-tt/erlang_ts
dshell
Emacs Lisp utility for creating, deleting, and switching shell-mode buffers.
- Emacs Lisp
- Shell
datnguyen-tt/dshell

Publications

2021 International Conference on Advanced Technologies for Communications (ATC)2021

Integrated Multi-standard system based on LR1110 for geolocation applications

Bui Phung Huu Duc, Dat Tran Nguyen Tien, Phuong Binh Nguyen, Nguyen Minh Thien, Le Huy Trinh, Fabien Ferrero

DOI: 10.1109/ATC52653.2021.9598262

BibTeX

@inproceedings{duc2021integrated,
  author = {Bui Phung Huu Duc and Dat Tran Nguyen Tien and
    Phuong Binh Nguyen and Nguyen Minh Thien and Le Huy Trinh
    and Fabien Ferrero},
  title = {Integrated Multi-standard system based on LR1110
    for geolocation applications},
  booktitle = {2021 International Conference on Advanced
    Technologies for Communications (ATC)},
  year = {2021},
  pages = {45--50},
  publisher = {IEEE},
  doi = {10.1109/ATC52653.2021.9598262}
}

Education

Degrees

2020-09 → 2022-05
Master of Science in Information Technology
University of Information Technology, Vietnam
- Built a hybrid geolocation gateway using LoRaWAN and Semtech LR1110.
- Co-authored an IEEE ATC 2021 paper on an LR1110-based integrated multi-standard geolocation system.
2012-09 → 2016-06
Bachelor of Engineering in Computer Engineering
University of Information Technology, Vietnam
- Completed a final project on solar-powered LoRa sensor systems with predictive logic.
- Completed an internship on resume parsing with C++ and regular expressions.

Awards

2017First Prize — Student Scientific Research ProjectsUniversity of Information Technology
2015Second Prize — Creative Ideas GrantUniversity of Information Technology

Languages

VietnameseNative
EnglishProfessional working proficiency

Contact

Open to senior and lead remote backend roles

dat@cvMessage sent · {ok, ack}

dat@cv> dat ! {hire, You}.
{ok, ack}

datttn.work@gmail.com

Dat Nguyen

erl-trace

erlang_ts

dshell

Integrated Multi-standard system based on LR1110 for geolocation applications

Degrees

Master of Science in Information Technology

Bachelor of Engineering in Computer Engineering

Awards

Languages