Hiring
Senior Backend Engineer (FastAPI)
Contract evidence involving Python, FastAPI, PostgreSQL. First observed 10 Sept 2026; the response opens on justjoin.it.
- Technology
- PythonFastAPIPostgreSQLRedisRAG
- Budget
- Not provided by source
- Work format
- Contract
- Role family
- Backend developer
- Seniority
- Senior
- Observed
- 10 Sept 202615 days old
- Response destination
- justjoin.it
What this signal says
The observed opportunity titled “Senior Backend Engineer (FastAPI)” enters this catalog as a market signal with a traceable source. Leadiy does not republish the original description. Instead, it separates a few decision-grade facts from the private operating record and adds context from the same demand dataset. That boundary matters: the public edition can help a developer or agency assess relevance, while the source remains responsible for complete requirements, eligibility, current status and the actual response flow. Any fact not shown here should be checked at that destination.
How the technology was normalized
The controlled technology reading for this record is Python, FastAPI, PostgreSQL, Redis, RAG. That label is derived from explicit terms in the role, primary technology and stack fields; it is not inferred from the buyer’s identity or from private contact context. Normalization folds common spelling and naming variants into one catalog so this page can be compared with other records. A combination tag appears only when every required part of that combination is detected. The result is a search aid, not a guarantee that every named tool is equally central to the delivery scope.
Commercial format
Leadiy reads the buying motion as Contract. This matters because the response shape for a deliverable, contractor seat, formal proposal and employment application is not interchangeable. The category is a classifier output rather than a legal characterization, and the original post wins if its terms change. The available duration wording is “Full-time; duration not published.” Work-location context is recorded as “100% remote B2B; Ukraine cross-border and agency-nominated eligibility not stated.”
Reading the budget
The source did not provide a budget for this opportunity. “Budget not provided by source” describes that missing commercial field; it does not mean the opportunity page is unpublished or unavailable. Leadiy does not estimate a range from similar records because fixed projects, hourly work, contracts and salaries are not safely interchangeable. Confirm compensation, currency, rate unit, scope and payment terms at the response destination before deciding whether to proceed.
Demand context from Hiring Pulse
In the current 30-day Hiring Pulse, Python appears in 420 of 1392 observed opportunities (30.2%). Counts are multi-label, so one opportunity may contribute to several technology buckets. Hiring Pulse is the contextual layer Leadiy adds beyond aggregation. It places the record against a verified observation window while keeping counting rules visible: technologies can overlap, the feed is not a census, and sparse groups are not disclosed as exact numbers. This evidence can support prioritization, not a forecast. The record still needs source-level verification, and the aggregate view deliberately omits direct leads, personal information, private outreach content and arbitrary micro-segments that could reveal too much.
Observation and publication timing
Leadiy first observed this signal on 10 Sept 2026, 08:31 UTC; at page render it is 15 days old. Its public eligibility time was calculated once from that observation using a deterministic 27.36-hour delay inside the promised 24–48 hour window. The delay is not the source publication age and should not be presented as one. It creates a clear product boundary: authenticated customers can work from the live matched feed, while search engines and unauthenticated visitors receive a later evidence edition. The stored eligibility timestamp prevents an early publish after restarts or repeated syncs.
What looks similar
To build a useful neighbourhood around this record, Leadiy compares normalized technology IDs and favours the strongest overlap among pages that have already cleared the public delay. The current result is: "Mid AI / Backend Engineer — agentic B2B platform", "Full-stack AI document-processing and RAG MVP", "Senior Full-Stack Developer for Gamified AI-Powered Learning Platform" This method makes relationships inspectable and avoids copying descriptive text from the source. Similarity means shared technical vocabulary, nothing more. It does not assert shared ownership, equal scope, equivalent seniority or an identical application process, and it can evolve as later records become publicly eligible.
Where the response goes
Applying means leaving Leadiy for justjoin.it, identified here as Just Join IT. The link is the normalized direct source URL stored with the opportunity. No public form on Leadiy submits an application, and no contact detail is exposed as a shortcut. The destination can impose login, marketplace credits, identity checks, location limits or other terms that are outside this catalog. Verify the hostname and the current post before sharing information. If the source has closed or changed the opportunity, its live state is authoritative.
Public evidence versus earlier access
Leadiy sells timing, not a different truth: the same opportunities, one day earlier. Subscribers receive the fresh matched feed and private workflow before a record crosses its public time fence. The later page remains complete enough to stand alone, with provenance, classification, budget reading, aggregate context and related records. Subscription is not preferential treatment from the buyer, and it cannot guarantee availability or success. It is earlier awareness plus an operational workspace; the public catalog is the delayed evidence layer.
The same opportunities, one day earlier.
See the $39 / 30-day plan →Your response leaves Leadiy.
The button opens justjoin.it. That third-party page controls login, eligibility, proposal fields, privacy and the current status of the opportunity.