There is a myriad of articles about where to find remote jobs, particularly in tech. Some of them are outdated and most of them don't provide detailed reviews. So that's why I decided to do my own research. I did a basic search by "React" skill (where possible) and expected to see mostly "Frontend Developer" vacancies.

In order to make it easier and more clear I developed my own points-based system. It is based on the parameters that I find most useful for my job search. Here they are:

Number of remote vacancies: 0 (min) - 10 (max);
Recency of vacancies: 0 (min) - 10 (max);
Relevance: 0 (min) - 10 (max);
Search by Skills: 0 - no; 3 - yes;
Search by Titles / Categories: 0 - no 3 - yes;
Location filters : 0 none; 2 - US-only filter; 4 - filter by other locations;
Other filters: 0 (min) - 3 (max)
E-mail subscription: 0 - none, 2 - yes, 4 - personalized:
Extra features: 0 (min) - 5 (max).

And here is the final rating:

Bergamot

Link

Number of remote vacancies: 10 points ^{3,300+ remote positions found}
Recency of vacancies: 10 points ^{First hundred vacancies are published within a recent month}
Relevance (top 10 search results): 10 points ^{All positions are relevant}
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 4 points ^{Choose your Citizenship and the system will automatically filter out all non-relevant vacancies}
Other filters: 0 points
E-mail subscription: 4 points ^{Personalized subscription (filtered by skills, titles) is available}
Extra features: 3 points

TOTAL: 48

Advantages:

Search by multi technologies, titles, citizenship. Smart location filter: Bergamot identifies geo-restrictions for applicants — and is the only aggregator that does it.
Seems to be the largest remote tech jobs aggregator for now (24k+ jobs).
Matches vacancies based on your Linkedin profile — you just paste the link.
Flexible subscription: personal job posts selection in your inbox (you can also subscribe and receive job posts based on your Linkedin profile).
Only real remote positions.

Disadvantages:

Outdated vacancies after the first 10 pages.
Just appeared on the market.

Workline

Link

Number of remote vacancies: 9 points
1,000+ remote positions found
Recency of vacancies: 10 points
Over hundred vacancies published during last month.
Relevance (top 10 search results): 7 points
Lots of non-relevant vacancies like Ruby Developer and/or Mobile Developer.
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 0 points
Other filters: 2 points
E-mail subscription: 4 points
Extra features: 3 points
It's possible to exclude keywords. This is the only website with such an option.

TOTAL: 41 points

Advantages:

Great selection of jobs sorted by date. So it's very easy to find some fresh publications.
Not a bad search algorithm: you can include and exclude some keywords.
Flexible subscription: you can select keywords (include or exclude some) and also sending frequency.

Disadvantages:

Sign up via Facebook is broken. What is it for?
All the job posts I've opened were from Stack Overflow.

RemotelyPeople

Link

Number of remote vacancies: 9 points
1,700+ remote positions found
Recency of vacancies: 10 points
All positions are recently added and updated.
Relevance (top 10 search results): 10 points
All positions are relevant.
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 2 points
Worldwide filter.
Other filters: 1 point
Filter "salary mentioned".
E-mail subscription: 2 points
No additional filters.
Extra features: 0 points

TOTAL: 40 points

Advantages:

Lots of relevant fresh positions.
Good search options.

Disadvantages:

It's not possible to customize email subscriptions.

WeWorkRemotely

Link

Number of remote vacancies: 2 points
52 remote positions found
Recency of vacancies: 10 points
All positions are recently added and updated.
Relevance (top 10 search results): 7 points
Most of the positions are highly relevant, but some include "React Native" (i.e. Mobile Development).
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 4 points
It's possible to filter US/EU and other countries only.
Other filters: 3 points
There are job-type, company and other filters.

E-mail subscription: 2 points
Not possible to personalize based on skills (only by category).
Extra features: 0 points

TOTAL: 34 points

Advantages:

Flexible job search: titles, keywords, job categories, locations, companies, job types.
Jobs for designers, copyrighters, management, finance, sales, etc.
More suitable jobs: you can check related jobs when you read more about some relevant position. Additional information about every company: how many job posts published, where the main office is located, link to company's career page etc.

Disadvantages:

A rather small selection of vacancies. Or they are just hard to find — 428 job posts for developers active now.
A huge (!) number of featured job posts, it really annoyed for me.

RemoteOK

Link

Number of remote vacancies: 2 points
30+ active remote positions found.
Recency of vacancies: 10 points
All positions are recently updated.
Relevance (top 10 search results): 9 points
Most of the positions are highly relevant, but some include *"React Native" (i.e. Mobile Development).
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 2 points
Only "show worldwide" filter available.
Other filters: 0 points
E-mail subscription: 4 points
Extra features: 0 points

TOTAL: 33 points

Advantages:

Wide collection of job posts, not only for developers but also for marketers, designers, customer development specialists.
Subscription: you can subscribe and receive relevant to your search job posts daily or weekly.

Disadvantages:

Awful search feature: it is not possible to use more than one search query filter. For example "React". You can't add any more technologies or titles.
Old job posts in the results: when I've entered "React" and I was mostly offered vacancies that are 3-6 months old already.
Job posts are featured by companies, so usually, you initially see promoted vacancies.

Remote.io

Link

Number of remote vacancies: 6 points
300+ remote positions found
Recency of vacancies: 10 points
All positions have been updated recently.
Relevance (top 10 search results): 6 points
Lots of non-relevant vacancies like Technical Writer and QA Engineer.
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 0 points
Other filters: 0 points
E-mail subscription: 2 points
Only by category.
Extra features: 3 points
Cool section with tools for remote workers and digital nomads.

TOTAL: 33 points

Advantages:

Time zone indicated, but the required citizenship for the application is not.
Salary is displayed for some positions.

Disadvantages:

Keyword search works not so well.
Limited filters.

Findwork

Link

Number of remote vacancies: 6 points
700+ remote positions found.*
Recency of vacancies: 2 points
First position in search result was published 3 months ago and no longer accepting applications.
Relevance: 4 points
Most positions from search result are "React Native" (i.e. Mobile Development), not "React" (i.e. Frontend Development).
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 0 points
Other filters: 3 points
There are lots of different filters, i.e. Employment Type, Source, Funding etc.
E-mail subscription: 4 points
Personalization (filtered by skills, titles) is available also.
Extra features: 3 points
Glassdoor ratings and Crunchbase info is available for some job posts.

TOTAL: 30 points

Advantages:

Cool additional filters: by Glassdoor rating, funding raised, and the number of employees. This is a feature that I really liked.
Login with Google, Github, Linkedin and set up an email subscription (use keywords, type of employment, and frequency).
A selection of similar vacancies is displayed inside each job post.

Disadvantages:

Outdated vacancies published weeks ago.
Poor keyword search.
Not only remote vacancies.

Remotive

Link

Number of remote vacancies: 4 points
130+ active remote positions found
Recency of vacancies: 8 points
Some available vacancies are outdated.
Relevance (top 10 search results): 6 points
A lot of non-relevant positions (e.g. .NET Developer).
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 2 points
US-only filter is available.
Other filters: 0 points
E-mail subscription: 2 points
It's possible to select only category (no other filters) to subscribe.
Extra features: 0 points

TOTAL: 28 points

Advantages:

Very clean and neat interface.
Fast search.

Disadvantages:

Not so many React vacancies available.
Limited filters.

CareerVault

Link

Number of remote vacancies: 5 points
105 remote positions found.
Recency of vacancies: 7 points
Starting from page #3 there are 2-4 months+ old vacancies.
Relevance (top 10 search results): 9 points
Most of the positions are highly relevant, but some include "React Native" (i.e. Mobile Development).
Search by Skills: 3 points
Search by Titles / Categories: 0 points
Location filters: 2 points
US-only filter is available.
Other filters: 0 points
E-mail subscription: 0 points
Extra features: 0 points

TOTAL: 26 points

Advantages:

Fresh selection: job posts published just a few hours ago.
Aggregates vacancies from not only from job boards but also from companies' career pages.
Signup (using Google / email) — an opportunity to save some job posts.
Big selection of job posts: 17k+ at the moment.
Only remote job posts.

Disadvantages:

No full-text search;
It's not possible to subscribe to get new vacancies.

NoDesk

Link

Number of remote vacancies: 1 points
Only 16 positions.
Recency of vacancies: 2 points
Not so many recently added vacancies.
Relevance: 9 points
Almost all the positions are relevant.
Search by Skills: 3 points
Search by Titles / Categories: 3 points
Location filters: 4 points
Other filters: 0 points
E-mail subscription: 2 points
All posts only.
Extra features: 0 points

TOTAL: 24 points

Advantages:

User-friendly interface.

Disadvantages:

Very small number of jobs.
Not so many recently added vacancies.

Meerkad

Link

Number of remote vacancies: 7 points
500+ remote positions found
Recency of vacancies: 5 points
Lots of outdated positions starting from page #2.
Relevance (top 10 search results): 5 points
Most vacancies are React Native ones (i.e. mobile).
Search by Skills: 3 points (but you need to sign-up first)
Search by Titles / Categories: 3 points
Location filters: 0 points
Other filters: 0 points
E-mail subscription: 0 points
Extra features: 0 points

TOTAL: 23 points

Advantages:

None as far that I can see.

Disadvantages:

OMG it requires you to sign up first in order to be able to search and apply for vacancies. No other website does the same.

Please, share your opinion about job aggregators and the way you find some new opportunities.

10+ Biggest Remote Tech Jobs Aggregators Comparison