Lead Backend Engineer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 2d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 38d ago
The date the source published, not the day we noticed it (2026-09-02). Last seen at its source 3h ago.
We have tracked this listing since 5 Oct 2026 (5 days). The employer's own board has carried it every time we have read it, most recently 3 hours ago.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
Mexico
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay $4,238–7,062/mo
Middle 50% of 16 listings that do state pay — Engineering · all levels · Mexico · USD/month. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
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Ashby employer's own board first seen 5d ago · last seen 3h ago
The listing
About the Role
We're looking for a Lead Backend Engineer to own entire systems and lead technical initiatives. You'll design and build backend services that power Aplazo's financial products, mentor engineers, and drive quality across your squad.
At this level, you're the technical leader of your squad—breaking down ambiguous problems, delivering complex features end-to-end, and making the trade-offs that balance speed with reliability.
What You'll Do
Own systems end-to-end — Design, build, and operate backend services from idea to production
Lead technically — Run design reviews, set technical direction, and make architecture decisions for your squad
Mentor engineers — Help E1/E2 engineers grow through pairing, code review, and coaching
Drive quality — Champion testing strategy, observability, and engineering best practices
Leverage AI strategically — Use AI for architecture exploration, large refactors, and risk modeling; build or champion AI-powered tools for the squad
Handle incidents — Lead incident response and blameless postmortems in your domain
Ship predictably — Break down ambiguous problems into clear milestones and deliver on commitments
What We're Looking For
Technical
5+ years building backend systems at scale
Strong experience with Java (Python/Go a plus)
Deep knowledge of distributed systems, APIs, and cloud infrastructure (AWS preferred)
Expert-level debugging across service boundaries
Track record of designing systems that balance scalability, reliability, and speed
AI Fluency
Uses AI tools (Copilot, Claude, ChatGPT) daily for coding, debugging, and analysis
Uses AI strategically for architecture exploration, large refactors, and prototyping
Builds or champions squad-level AI-powered tools (e.g., smart alerting, test generation)
Keeps the team ahead of new AI capabilities relevant to backend development and fintech
Leadership & Communication
Experience mentoring engineers and leading technical discussions
Clear communicator who can explain trade-offs to engineers, PMs, and stakeholders
Comfortable with ambiguity and changing requirements
Fluent in Spanish; working knowledge of English for cross-team collaboration
Mindset
Product-minded—you care about business outcomes, not just code
Strong ownership mentality; you see problems through to resolution
Curious about fintech, lending, and the Mexican financial ecosystem
Nice to Have
Experience in fintech, payments, or lending
Familiarity with Mexican financial regulation (CNBV, Condusef)
On-call and incident management experience
Contributions to engineering culture (tech talks, RFCs, tooling)
Our Stack
Java (primary), Python, Go · AWS (ECS, Lambda) · PostgreSQL · Kafka · DataDog · Pulumi · Jenkins
Why Aplazo
Our mission is to empower financial access and opportunity across Latin America through fair, simple, and transparent solutions. Our tech vision: be the most beloved and innovative tech organization in Latin America.
We're a Series B fintech growing fast—you'll have real ownership, impact, and the chance to shape how millions of people access credit.