Apply

Ready to go for it?

AI Apply speeds things up—apply directly if you prefer.

FREE ACCESS
5,000–10,000 jobs/day
JobTailor Logo

See all jobs on JobTailor

Search thousands of fresh jobs every day.

Discover
  • Fresh listings
  • Fast filters
  • No subscription required
Create a free account and start exploring right away.
Extend

Senior Software Engineer

Extend

Senior Software Engineer building backend systems for a spend and expense management platform. Joining a growing team to improve security, visibility, and efficiency in business spending.

Posted 7/30/2026full-timeRemote • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and operating real-time systems, ensuring data correctness and reliability, and managing operational ownership in distributed environments. Proficient in communicating technical concepts to non-technical stakeholders and familiar with regulated financial environments.

Highest-signal resume keywords
Distributed SystemsCloud InfrastructureRelational DatabasesOperational OwnershipEvent-Driven Architecture

ATS Keywords

Tailor your resume
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Backend FrameworksObservabilityIntegration TestingIncident ResponsePerformance WorkFunctional ProgrammingDomain-Driven DesignClean ArchitectureSOLID PrinciplesData Correctness
Soft Skills
CommunicationProblem-Solving
Tools & Technologies
AI Coding AgentsExternal APIsQueuesStreamsLedger Systems
Certifications & Qualifications
PCISOC 2
Industry Keywords
Regulated Financial EnvironmentsSRE Experience

Tech Stack

Tools & technologies
CloudDistributed Systems

About the role

Key responsibilities & impact
  • Design and evolve the abstraction the rest of Extend builds on.
  • Build and operate the real-time systems behind card issuance, authorization, and settlement.
  • Build the mocks, canaries, and tooling that make partner systems testable.
  • Prove our data is right: detect divergence, resolve it deterministically, contain it before it propagates.
  • Bring new banks, issuer processors, and network partners online.
  • Own problems end to end: design, production reliability, on-call, and the consequences of your own decisions.
  • Use AI coding agents heavily.

Requirements

What you’ll need
  • Experience with comparable distributed systems, cloud infrastructure, relational databases, and backend frameworks
  • Worked on backend systems where correctness, reliability, and operational ownership actually mattered
  • Familiarity with external APIs you don't control
  • Real depth in at least one operational discipline: observability, integration testing, incident response, or performance work
  • Ability to explain technical trade-offs in understandable language to non-technical stakeholders
  • Bonus points for Event-driven or message-driven architectures, queues, streams, or ledger-like systems, Domain-driven design, Clean Architecture, SOLID principles, Functional programming, PCI, SOC 2, or other regulated financial environments, SRE experience.

Benefits

Comp & perks
  • Competitive compensation package
  • Equity for all–our success is your success
  • Unlimited vacation–and we want you to use it
  • 401K matching
  • Flexible work options
  • Comprehensive health coverage for you and your family
  • Maternity and paternity leave benefits
  • Reimbursement for gym memberships
  • $5K referral bonus–bring your friends!