Principal Engineer, Enterprise Scalability (Remote - East Coast Only)

Location: Remote, East Coast only; Boston, MA, US. The role may require up to 10% travel for onboarding, client or partner work, team meetings, and industry events.

Base pay range for US locations: $244,000–$366,000 USD per year.

Company

hirify.global develops a SaaS platform that helps businesses use first-party data to build stronger customer relationships and personalized ecommerce experiences.

What you will do

• Define measurable scale-readiness targets for latency, throughput, error rates, capacity, service-level objectives, and error budgets.
• Identify and remove major production bottlenecks using profiling, production data, benchmarks, and representative workloads.
• Design and implement sharding, partitioning, caching, back-pressure, workload isolation, multi-region readiness, and high-volume migration strategies.
• Create benchmarks, profiling harnesses, test environments, reusable engineering patterns, scalability reviews, and release gates.
• Lead technical incident deep dives, address systemic causes, and validate fixes that reduce recurring incidents.
• Apply AI-assisted profiling, workload modeling, synthetic traffic, anomaly detection, and guided runbooks with explicit guardrails and operational measurement.

Requirements

• 12+ years of relevant engineering experience, including deep experience scaling multi-tenant SaaS and a track record of measurable production impact.
• Hands-on expertise in performance engineering, capacity planning, sharding, partitioning, caching, back-pressure, tenant isolation, multi-region architectures, and large-scale migrations.
• Ability to investigate unfamiliar systems, test hypotheses, write production code, and roll out changes safely with service owners.
• Strong technical judgment when balancing immediate constraints against broader platform investments.
• Ability to align teams across organizational boundaries, clarify ownership, and establish practical engineering standards.
• Clear communication of complex technical decisions and business implications to engineering and executive audiences.
• Applied experience with AI tools or automation for engineering work, including evaluating usefulness, limitations, and operational risks.
• Senior individual contributor role reporting to the VP of Engineering with no direct reports.

Culture & Benefits

• Remote work is limited to the US East Coast.
• Work focuses on technical depth, cross-team collaboration, measurable customer impact, and responsible AI use with privacy, security, bias awareness, and human-in-the-loop controls.
• Compensation may also include an annual cash bonus, equity, sign-on payments, and health, welfare, and wellbeing benefits, subject to eligibility.
• Employment practices include equal opportunity and reasonable accommodations.

Hiring process

• hirify.global uses Covey in its hiring and/or promotional process.
• By participating in interviews, candidates acknowledge and must follow hirify.global's guidelines for using AI in the interview process.
• Submitting an application constitutes consent to processing personal data under the Job Applicant Privacy Notice.