Senior Network Capacity Planning Engineer

ByteDance; San Jose (CA); On-site; USD 156,000 - 387,600; Full time

Job summary

ByteDance is seeking a Senior Network Capacity Planning Engineer in San Jose to forecast and manage global network demand across data centers, backbone, and cloud. You will define forecasting methods, backtest accuracy, and enhance models for seasonality and events.

You will lead capacity planning, quantify risks, and translate plans into concrete build requirements with clear timelines. You will build scalable pipelines and dashboards, partner with the OneNet team on automation, and mentor

Qualifications

• Bachelor's or Master's degree in Computer Science, Information Science, Engineering, Mathematics, or equivalent.
• Proven experience applying quantitative methodologies to analyze network performance and capacity metrics.
• In-depth understanding of network devices, protocols, routing, and resiliency (e.g., BGP/IGP, ECMP, failure domains, traffic engineering concepts).

Responsibilities

• Own capacity forecasting and modeling for ByteDance global network traffic across horizons (weekly/quarterly/annual).
• Lead capacity planning and network expansion strategy with headroom policies and redundancy targets.
• Build scalable data tooling and dashboards for forecasting and planning workflows.
• Cross-functional leadership to align demand signals and roll planning into roadmaps.
• Deliver governance, readouts, and risk assessment for leadership.

Skills

Quantitative methods

Network performance

Python+SQL

Education

Bachelor's or Master's in CS/Engineering

Tools

Python

SQL

Job description

Senior Network Capacity Planning Engineer

Location: San Jose

Team: Technology

Employment Type: Regular

Job Code: A28375B

Responsibilities

• Capacity Forecasting & Modeling
  • Own and evolve models to forecast ByteDance global network traffic demand (DC, backbone, Cloud, peering/transit) across multiple horizons (weekly/quarterly/annual)
  • Define forecast accuracy metrics, perform backtesting, and systematically improve methodology (seasonality, event-driven spikes, regional growth shifts, product launches)
• Network Planning
  • Lead capacity planning and network expansion strategy: define headroom policies, redundancy targets and growth triggers aligned with availability/SLA objectives
  • Produce actionable network plans (quarterly and annual): where/when to add capacity, which links/PoPs/DC fabrics to scale, and which upgrades deliver best risk reduction and cost efficiency
  • Run network simulations / what-if analysis to quantify failure-domain risk, congestion risk, and resiliency gaps; recommend topology or routing changes where appropriate
  • Drive planning-to-execution alignment: translate plans into clear build requirements and timelines; track delivery progress and mitigate gaps (supply, lead time, deployment constraints)
  • Own planning readouts for leadership: communicate assumptions, risks, trade-offs, and prioritization proposals with clarity
• Data & Tooling
  • Build scalable methods and tools to streamline network data analytical tasks (pipelines, dashboards, automated insights)
  • Partner with the OneNet team to automate forecasting and network planning workstreams (data ingestion, reporting, plan generation, validation, alerts)
• Cross-functional Leadership
  • Engage with cross-functional teams to align on demand signals, validate model inputs, and integrate planning into business roadmaps
  • Mentor/guide team members; provide best practices on planning frameworks, metrics, and data quality
• Reporting & Governance
  • Deliver quarterly and annual summaries of key network planning and delivery performance metrics to internal stakeholders, including forecast accuracy, capacity utilization trends, risk posture, and delivery health
  • Establish planning governance: standard definitions, review cadence, change management for assumptions and plan revisions

Qualifications

Minimum Qualifications:

• A Bachelor's or Master's degree in Computer Science, Information Science, Engineering, Mathematics, or equivalent
• Proven experience applying quantitative methodologies to analyze network performance and capacity metrics
• In-depth understanding of network devices, protocols, routing, and resiliency (e.g., BGP/IGP, ECMP, failure domains, traffic engineering concepts)

Preferred Qualifications:

• Demonstrated ownership of network planning (capacity strategy, headroom policy, long-range planning, build prioritization) in hyperscale networks, large ISPs, or major cloud providers
• Experience collaborating with network engineers and building productive cross-functional relationships (Engineering, SRE, DC delivery, Finance/Procurement)
• Experience leading data science and engineering projects end-to-end (problem framing → model/tool delivery → adoption)
• Experience with data visualization software, e.g. Aeolus, Tableau
• Experience driving ambiguous problems to closure; comfortable influencing stakeholders without direct authority
• Coding experience in Python + SQL (MySQL or similar) and/or other languages for data analysis and automation

Job Information

The base salary range for this position in the selected city is $156,000 - $387,600 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

Los Angeles County Hiring Policies

• 1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
• 2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems;
• 3. Exercising sound judgment.

Reasonable Accommodation

ByteDance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request