I maintain a list of social purpose job boards. If you know of others I should add, please let me know. You might also be interested in Rachel Strohm’s list of academic scholarships.

• 80000 Hours: Very limited, curated set of job recommendations for Effective Altruists. Mostly US or UK.
• Bright+3: Extremely comprehensive Google Sheet collating job boards, including several that don’t yet appear here. Special focus on digital, campaign and creative roles.
• ImpactPool: Focus on UN and international orgs, but actually lots of NGO jobs too. Really nice interface.
• DevelopmentAid: Very large database, pretty good search function.
• Human rights funders: Great select list of jobs at major philanthropy foundations working on human rights.
• EvalCommunity: Endless M&E jobs.
• Devex: Covers whole dev industry. Pretty huge. Easy to create alerts. About half of jobs visible – unlock all and get various other stuff for $9.50/month.
• Devnetjobs: Covers whole dev industry. Huge database and (almost unmanageably) lengthy weekly email – but most functions only available to Value Members ($48 for Q1).
• ReliefWeb: Comprehensive source of humanitarian, relief and conflict jobs. Good search function.
• C4D network: Pretty good weekly email for members of jobs and consultancy opportunities, with a focus on communications and behaviour change. Searchable job board available to all.
• CoordinationSud: Good search function. More limited selection. Especially Francophone countries and French NGOs.
• JPAL: Academic research roles. Good searchability and common application makes it very easy to apply to multiple roles.
• AngelList: Startups. Heavily US focused.
• CharityJob: UK charity and government jobs, mostly. Quite usable.
• Bond: Smallish number of jobs, but often quite interesting. More UK based.
• IntJobs: Lots of US think tank jobs. A fair few Africa-based jobs, mostly at more senior levels. Not a huge repository. Reasonable search interface.
• W4MP: Almost entirely UK politics, but decent source of London think tank jobs. Little search ability.
• NGOJobsinAfrica: Quite a large number of jobs, some more junior. Fairly limited searching ability.
• AidBoard: Bad interface, limited numbers of jobs.
• Idealist: Good searchability. Limited Africa jobs. Many non-paid opportunities listed also.
• ACF: Smallish list of UK charity jobs
• EPLO: Focused on European peacebuilding.
• Impact Opportunity. Strong US Philanthropy listings, with good searchability.
• EA Work Club: Small. Pretty searchable. Side gigs as well as jobs. Focused on effective altruism cause areas.
• UN Jobs: Mostly UN, as the name suggests, but some other roles. Somewhat messy search function.
• Josh’s Water Jobs: Only WASH, as the name suggests. Within that, impressively comprehensive and with a solid search function.
• Tech Jobs for Good: As the name suggests, mission-driven tech positions. Only in the US. Very many roles, though limited ability to filter.
• Green Job List: Monthly climate change and social purpose focused jobs newsletter. Almost all US based. About 30 per issue.
• Fast Forward: Tech non-profit jobs. Reasonable range, mostly US, with a smooth interface.
• Escape the City: Nice searchable interface, including the ability to filter by willingness to sponsor visas! Focus on UK, and on socially-minded for-profits.
• Anna Meier has curated a list of job boards for academic jobs in political science.
• Effective Altruism NYC: Nice and easy to filter, jobs in NY or remote.
• Climate Base: Decent list of environmental jobs, though limited filtering.
• SDG.careers: Filter by which SDG you wish to focus on. Lots of US roles at present. Not that much filtering available.