Software Engineer (mid-level backend)
Summary
Backend engineer with 5 years of experience building distributed systems in Python and Go. Shipped two services from zero to production at a Series B fintech. Looking for a senior IC role focused on payments infrastructure.
Skills section keywords to mirror
Python, Go, PostgreSQL, Redis, Kafka, AWS (EC2, Lambda, RDS), Terraform, Datadog, OpenTelemetry, distributed systems, payments, OAuth, REST APIs, microservices
Three example bullets
01Reduced p95 API latency from 820ms to 210ms on the search endpoint via Redis caching and query restructuring, sustaining the gain over six months of traffic growth.
Why it scores: Two numbers, named technologies, named endpoint, durability of the result. Hits keyword search and quantification scoring at once.
02Led migration of the billing service from a monolith to two Go services, cutting deploy time from 28 minutes to 4 and removing a recurring weekly outage.
Why it scores: Concrete impact (deploy time, outage removed), specific tech stack, scope ("billing service"), no marketing language.
03Mentored 3 junior engineers through their first production incidents, with two promoted to mid-level within 12 months.
Why it scores: Shows judgement and seniority beyond IC work. The two-promotions outcome quantifies what is usually a soft claim.
