Resume, GitHub, and Professional Positioning

This lesson focuses on packaging your Elixir work so hiring teams can evaluate it quickly and accurately.

One Role Narrative Across All Surfaces

Use one clear narrative in resume, GitHub profile, and interview intro.

Example narrative:

I build and operate reliable Elixir services with Phoenix and Oban, with focus on incident reduction, predictable releases, and observability-first design.

If resume says “product engineer” but projects show only infrastructure experiments, the signal is mixed.

Resume Structure for Elixir Roles

Recommended section order:

1. headline and summary,
2. technical skills grouped by capability,
3. experience bullets with outcomes,
4. selected projects,
5. education and certifications.

Skills Grouping Example

Group skills by execution value, not alphabetically:

• Elixir/OTP: GenServer, supervision trees, Task, ETS.
• Web/Data: Phoenix, LiveView, Ecto, PostgreSQL.
• Operations: releases, telemetry, incident response, CI/CD.
• Reliability: Oban retries, idempotency, failure testing.

Writing Better Experience Bullets

Each bullet should include:

• system scope,
• action you took,
• measurable result,
• stack context.

Template:

[Action] [system/workflow] using [technical approach], resulting in [measurable outcome].

Before:

Improved background jobs.

After:

Redesigned Oban workflow for invoice processing with idempotency keys and queue partitioning, reducing duplicate payouts by 99.7% and cutting p95 completion time from 14m to 4m.

GitHub Profile as a Technical Review Surface

Treat GitHub like a product demo for engineers.

Profile README Checklist

• one paragraph role narrative,
• 2-4 flagship repos with why they matter,
• architecture and operations highlights,
• current learning focus.

Repository README Template

Every flagship repo should include:

1. problem statement,
2. architecture overview,
3. quickstart commands,
4. test strategy,
5. runbook snippet,
6. known tradeoffs and future work.

Maintainability Signals

Reviewers look for:

• coherent commit history,
• issue tracking discipline,
• reproducible setup,
• passing CI,
• stable naming and structure.

Positioning for Different Role Targets

Adjust emphasis based on target role.

• Product backend: feature throughput, API design, data correctness.
• Platform/reliability: deploy safety, observability, incident leadership.
• Staff+: architecture decisions, cross-team standards, system evolution.

Do not rewrite your identity for each application. Keep one core identity and adjust emphasis.

Application Packet Strategy

For each application, submit a compact evidence set:

1. tailored resume,
2. 1-page project evidence sheet,
3. links to two strongest repos,
4. short note on role-fit and relevant outcomes.

This increases signal density and reduces reviewer effort.

Common Positioning Mistakes

• Listing too many technologies with no depth.
• Describing tasks instead of outcomes.
• Using generic summaries that fit any language.
• Linking repos with weak documentation.
• Overstating expertise without evidence.

Exercise

Summary

Professional positioning works best when resume, GitHub, and interview narrative all reinforce the same role target. Lead with outcomes, keep technical claims specific, and optimize repositories for reviewer comprehension.

FAQ and Troubleshooting

What if I do not have production metrics?

Use controlled benchmark or reliability proxy metrics and label them clearly. Credible, bounded evidence is better than vague claims.

Should I include every repository on my profile?

No. Highlight a curated set of strong projects that match your target role and archive or de-emphasize low-signal repos.