{"landing":{"id":2916,"type":"location","title":"Backend Developer Jobs in Bristol","description":"Backend Developer jobs in Bristol hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $99,275/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.","url":"https://alion.io/jobs/backend-developer-in-bristol","json_url":"https://alion.io/jobs/backend-developer-in-bristol.json","filters":{"role_ids":"3","location_ids":"1057"},"updated_at":"2026-10-23T14:45:58Z"},"aggregates":{"jobs":71,"companies":33,"posted_last_7_days":31,"companies_active_90_days":27,"work_mode":{"remote":1,"hybrid":36,"on_site":34},"visa_sponsorship":0,"relocation":4,"equity":0,"salary_stated_n":21,"salary_estimated_n":47,"marked_inactive":5,"salary_usd_annual":{"p10":70892,"avg":102573,"p90":153822},"salary_stated":{"all":{"n":21,"p25":79977,"p50":93700,"p75":120382},"by_seniority":[]},"salary_estimated":{"all":{"n":47,"p25":103500,"p50":115500,"p75":132500},"by_seniority":[{"seniority":"junior","n":10,"p25":79500,"p50":81000,"p75":84000},{"seniority":"senior","n":16,"p25":112000,"p50":114000,"p75":132000},{"seniority":"lead","n":8,"p25":132000,"p50":136000,"p75":141500}]},"top_technologies":[{"name":"Python","jobs":30},{"name":"C++","jobs":28},{"name":"CI/CD","jobs":27},{"name":"AWS","jobs":20},{"name":"Agile","jobs":19},{"name":"JavaScript","jobs":17},{"name":"TypeScript","jobs":16},{"name":"Linux","jobs":16}],"top_locations":[{"name":"United Kingdom","jobs":4},{"name":"Costa Rica","jobs":1},{"name":"Slovenia","jobs":1}],"top_companies":[{"name":"Graphcore","url":"https://alion.io/company/graphcore","jobs":13},{"name":"Kaluza","url":"https://alion.io/company/kaluza","jobs":5},{"name":"CACI","url":"https://alion.io/company/caci-co-uk","jobs":5},{"name":"MBDA UK","url":"https://alion.io/company/mbdacareers","jobs":5},{"name":"Kinneirdufort","url":"https://alion.io/company/kinneirdufort","jobs":5},{"name":"Made Tech","url":"https://alion.io/company/made-tech","jobs":4},{"name":"Fractile","url":"https://alion.io/company/fractile","jobs":3},{"name":"Boeing","url":"https://alion.io/company/boeing","jobs":2},{"name":"AND Digital","url":"https://alion.io/company/and-digital","jobs":2},{"name":"Hewlett Packard Enterprise","url":"https://alion.io/company/hewlett-packard-enterprise","jobs":2},{"name":"AtkinsRéalis","url":"https://alion.io/company/atkinsrealis","jobs":2},{"name":"Rolls-Royce","url":"https://alion.io/company/rolls-royce","jobs":2}]},"content":{"sections":[{"title":"The market right now","text":"Alion currently lists 71 open Backend Developer jobs in Bristol from 33 companies. 31 of them were posted or refreshed in the last seven days. 27 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. 5 of the 71 carry the marks of a stale or abandoned posting - open far beyond the usual time to fill, reposted, or on a board that mostly never closes a role - and are marked as likely inactive; the list can hide them. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary."},{"title":"What these roles pay","text":"21 of these Backend Developer jobs in Bristol state pay directly. Across them the middle half of the market sits between $80K and $120K a year, with a median of $94K. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable."},{"title":"Where the work is","text":"The largest concentrations of these roles are United Kingdom (4), Costa Rica (1), and Slovenia (1). 51% offer a hybrid arrangement, while the rest expect you on site."},{"title":"Who is hiring","text":"The employers with the most open Backend Developer jobs in Bristol right now are Graphcore (13), Kaluza (5), CACI (5), MBDA UK (5), Kinneirdufort (5), and Made Tech (4). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application."},{"title":"What employers ask for","text":"Reading across the current listings, the tools that come up most often are Python (30), C++ (28), CI/CD (27), AWS (20), Agile (19), JavaScript (17), TypeScript (16), and Linux (16). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list."},{"title":"Relocation, visas and equity","text":"Of the current Backend Developer jobs in Bristol, 4 offer a relocation package. These are filters on the list above, so you can narrow it to the ones that make a move possible for you."}],"faq":[{"question":"How many Backend Developer jobs in Bristol are open right now?","answer":"There are 71 open Backend Developer jobs in Bristol on Alion from 33 companies. The list was last refreshed on October 23, 2026."},{"question":"Are all of these Backend Developer jobs in Bristol still being filled?","answer":"Probably not all of them. 5 of the 71 show the marks Alion reads as a likely inactive posting: open far longer than employers usually take to fill such a role, reposted several times, or sitting on a board that rarely closes anything. They stay listed with a warning, and the list can hide them with one switch."},{"question":"What do Backend Developer jobs in Bristol pay?","answer":"The median is $94K a year, and the middle half of the market falls between $80K and $120K. This is based on the 21 listings that state pay."},{"question":"Are any of these roles remote?","answer":"1 of the 71 listings (1%) are fully remote, and you can filter the list down to them in one click."},{"question":"Which companies are hiring?","answer":"The most active employers right now are Graphcore, Kaluza, CACI, MBDA UK, Kinneirdufort, and Made Tech. Each has its own page on Alion with the rest of its open roles."},{"question":"Can I get visa sponsorship or relocation?","answer":"Yes - of the current listings, 4 offer a relocation package. Both are filters on the jobs page."},{"question":"How do I apply?","answer":"Open any listing and apply on the employer's own board through the link on the page. No account is required to browse or to apply."}]},"jobs":[{"id":3164120,"url":"https://alion.io/job/kaluza-senior-software-engineer-2","json_url":"https://alion.io/job/kaluza-senior-software-engineer-2.json","title":"Senior Software Engineer","company":{"id":51455,"name":"Kaluza","url":"https://alion.io/company/kaluza"},"work_mode":"hybrid","salary":null,"status":"live","updated_at":"2026-10-23T14:45:58+00:00"},{"id":2445945,"url":"https://alion.io/job/kaluza-principal-engineer-2","json_url":"https://alion.io/job/kaluza-principal-engineer-2.json","title":"Principal Software 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