Extracted from 147 judged postings (all of them, not only the good fits) on . Green = required, blue = nice-to-have. Your profile lists: TypeScript, JavaScript, React, Next.js, Node.js, HTML, CSS, Tailwind CSS, REST APIs, GraphQL, Testing, Jest, React Testing Library, Git.
A learning roadmap and resume-wording hint, not an application filter. Edit config/profile.yml if something here is actually a skill you have.
| Skill | Required | Nice-to-have | Share of postings | Companies |
|---|---|---|---|---|
| Python | 40 | 11 | Mozilla, Distru (https://www.distru.com), Airbnb, Grupo QuintoAndar, Brex, Discord +15 | |
| PostgreSQL | 37 | 8 | Mediastream, Valsnapp, BC Tecnología, Proofline, Distru (https://www.distru.com), River +21 | |
| AWS | 30 | 12 | PoderJudicialVirtual.com, Chipax, BC Tecnología, Proofline, Grupo QuintoAndar, Brex +14 | |
| Go | 28 | 18 | canals, Mozilla, Grupo QuintoAndar, Proofline, Railway, clickhouse +16 | |
| Linux | 24 | 1 | Canonical, FastCTO, MixRank (YC S11), Speechify | |
| Java | 19 | 4 | Airbnb, Grupo QuintoAndar, Clara, Dugu, Improving, BC Tecnología +4 | |
| Kubernetes | 18 | 19 | clickhouse, railway, Airbnb, VTEX, Grupo Mariposa, BC Tecnología +10 | |
| Docker | 16 | 8 | Improving, BC Tecnología, supabase, Clara, Canonical | |
| Kotlin | 15 | 2 | Airbnb, Grupo QuintoAndar, Brex, Discord, BC Tecnología, Khipu | |
| Rust | 11 | 8 | Mozilla, Proofline, Railway, clickhouse, railway, Voluntas +3 | |
| C++ | 11 | 2 | clickhouse, Canonical | |
| C# | 10 | 1 | VTEX, Vequity, Maxxa, Improving, Hyqoo, Continuum +2 | |
| Bash | 10 | 0 | Speechify, Canonical | |
| SQL | 9 | 0 | Airbnb, Bavardio, One Click Technology LLC, Search Atlas, savvy, Brex +2 | |
| C | 8 | 3 | Canonical | |
| Distributed systems | 8 | 1 | Airbnb, Grupo QuintoAndar, Brex, clickhouse, railway, VTEX +1 | |
| Angular | 6 | 1 | BC Tecnología, Smith, Vequity, Grupo Mariposa, Improving | |
| NestJS | 6 | 1 | BC Tecnología | |
| Terraform | 5 | 14 | Proofline, clickhouse, Improving, BC Tecnología, FastCTO, Speechify +3 | |
| Redis | 5 | 6 | California Injury Group, APC, Dugu, BC Tecnología, netboxlabs, FastCTO, resend +3 | |
| CI/CD | 5 | 5 | Airbnb, classdojo, BC Tecnología, netboxlabs, Improving, Clara +1 | |
| Ruby | 5 | 3 | Dugu, tremendous, savvy, BuildQ, Donorbox, Amplemarket | |
| LLM / AI integration | 4 | 24 | BC Tecnología, Proofline, Distru (https://www.distru.com), Grupo QuintoAndar, Airbnb, Brex +15 | |
| Ubuntu | 4 | 3 | Canonical | |
| OpenStack | 4 | 1 | Canonical | |
| gRPC | 4 | 0 | The Configurations Lab, netboxlabs, FastCTO, Coinbase | |
| GCP | 3 | 17 | Proofline, clickhouse, Vetclaims.ai, Vequity, Grupo Mariposa, tremendous +6 | |
| MongoDB | 3 | 7 | BC Tecnología, Mediastream, Improving, Canonical | |
| Kafka | 3 | 6 | BC Tecnología, Clara, The Configurations Lab, Coinbase | |
| Playwright | 3 | 5 | PoderJudicialVirtual.com, Valsnapp, Continuum, BC Tecnología, netboxlabs, savvy +1 | |
| Design Systems | 3 | 3 | Chipax, Airbnb, VTEX, Chameleon, Augment Markets, netboxlabs | |
| Vue | 3 | 1 | PoderJudicialVirtual.com, Chipax, Smith, Improving | |
| OIDC | 3 | 1 | Grupo QuintoAndar, Brex, supabase, Clara | |
| Spring Boot | 3 | 1 | Clara | |
| TanStack Query | 3 | 1 | Chameleon, BC Tecnología, netboxlabs | |
| PHP | 3 | 0 | PoderJudicialVirtual.com, Chipax, One Click Technology LLC | |
| Web Performance | 3 | 0 | Airbnb, Discord, VTEX | |
| Azure | 2 | 5 | Improving, Grupo Mariposa, supabase, Sourcegraph, Canonical | |
| React Native | 2 | 3 | Distru (https://www.distru.com), River, Discord, California Injury Group, APC, Brex | |
| OpenTelemetry | 2 | 3 | netboxlabs, FastCTO, supabase |
| Skill | Required | Nice-to-have | Share of postings | Companies |
|---|---|---|---|---|
| TypeScript | 56 | 4 | Valsnapp, BC Tecnología, Airbnb, Proofline, Railway, Distru (https://www.distru.com) +29 | |
| React | 52 | 11 | Mediastream, Valsnapp, Smith, BC Tecnología, Airbnb, Proofline +30 | |
| Node.js | 27 | 1 | Chipax, BC Tecnología, Mediastream, Railway, Grupo QuintoAndar, railway +8 | |
| JavaScript | 16 | 2 | Mediastream, Mozilla, Smith, Airbnb, Chameleon, Tether +10 | |
| REST APIs | 16 | 2 | Smith, Clara, Bavardio, Flex, Improving, Grupo Mariposa +8 | |
| GraphQL | 14 | 4 | Airbnb, Railway, Distru (https://www.distru.com), River, Brex, railway +5 | |
| Next.js | 11 | 5 | Valsnapp, BC Tecnología, VTEX, Augment Markets, California Injury Group, APC, Vetclaims.ai +7 | |
| Testing | 7 | 4 | Valsnapp, Airbnb, VTEX, Chameleon, Augment Markets, classdojo +4 | |
| CSS | 7 | 0 | Smith, VTEX, Chameleon, Improving, Donorbox, Amplemarket | |
| Git | 6 | 0 | MixRank (YC S11), Clara, Canonical | |
| HTML | 5 | 0 | Smith, Chameleon, Improving, Donorbox, Amplemarket | |
| Tailwind CSS | 4 | 0 | Chameleon, Augment Markets, BC Tecnología, netboxlabs | |
| Jest | 3 | 1 | Niuro, Improving, BC Tecnología | |
| React Testing Library | 1 | 1 | Continuum, Niuro |