At Sectigo, we align around our mission and pride ourselves in helping thousands of customers sleep better at night.

Sectigo is the most innovative provider of certificate lifecycle management (CLM), delivering comprehensive solutions that secure human and machine identities for the world’s largest brands. Sectigo’s automated, cloud-native CLM platform issues and manages digital certificates across all certificate authorities (CAs) to simplify and improve security protocols within the enterprise. Sectigo is one of the largest, longest-standing, and most reputable CAs with more than 700,000 customers and two decades of delivering unparalleled digital trust.

“When people think Online trust management, they think Sectigo because we offer our customers unparalleled peace of mind.”

How we show up with each other and our customers every day is just as important, and we win as #OneSectigo by living out our core values - Support, Excellence, Communication, Teamwork, Integrity, Growth and Openness. We are committed to investing in our diverse teams where everyone understands their role and how they support our strategic goals, we drive operational excellence through scale and efficiency, and we strive to delight our customers and become the market leader in our industry. If you aspire to join a driven team that holds each other accountable to meeting our lofty goals and you’d like to be part of our growth story in delivering a market leading user experience, we’d like to talk to you.

We are hiring a senior‑level software engineer to contribute to and evolve our Trust Infrastructure platform, with an initial focus on Merkle Tree Certificate (MTC)–based systems and certificate lifecycle services.

The role of a Principal Software Engineer – Trust Infrastructure is centered on high‑performance backend development and distributed systems, advancing existing platform components toward production‑scale reliability, performance, and operability. While the platform operates in a security and PKI domain, this is not a cryptography research role. The emphasis is on strong software engineering, system design, and building robust, scalable infrastructure.

As our trust platform evolves alongside industry direction, this role will naturally expand across adjacent trust and security infrastructure concerns.

This is a full-time position, working in a hybrid model, and reporting to our Ottawa office at least 3-4 days a week. The target compensation package for this role is between CAD 130,000 and CAD 170,000, subject to internal equity and years of experience.  We may make further adjustments through an approval process if the targeted compensation range needs to be modified based on business needs and market trends.

Here are the core functions, responsibilities, and expectations for this role: 

• Advance and harden core trust infrastructure services, with current emphasis on MTC‑based certificate systems.
• Design, implement, and operate high‑performance distributed backend services in Go (Golang).
• Scale and optimize systems responsible for certificate issuance, validation, and lifecycle operations.
• Implement and evolve storage and data models supporting Merkle tree–based trust structures.
• Translate evolving standards and specifications into practical, production‑ready platform behavior.
• Improve system reliability, observability, and operability in production environments.
• Collaborate with architecture, security, and platform teams on long‑term trust infrastructure design.
• Additional tasks associated with this position may be assigned in response to company initiatives and business needs.

Education:

• Bachelor's degree is related field is strongly recommended.  Advanced degree is welcomed. 

Experience:

• Senior‑level experience (Senior / Principal / Distinguished) as a backend or distributed systems engineer is required. 
• Deep proficiency in Golang, with experience building and operating production services is reqired.
• Strong background in distributed systems design (scaling, consistency, fault tolerance) is required.
• Experience building high‑throughput, low‑latency backend platforms is required.
• Solid understanding of software security fundamentals is required.
• Familiarity with PKI concepts (certificates, trust models) or demonstrated ability is required to ramp up quickly.
• Experience working on trust infrastructure, PKI platforms, or security‑critical systems is strongly preferred.
• Exposure to Merkle trees or authenticated data structures is strongly preferred.
• Experience implementing standards‑driven systems is strongly preferred.
• Background in systems that require high correctness guarantees and operational discipline is strongly preferred.

Ideal Candidate Profiles, Talents, and Desired Qualifications:

• A highly experienced software engineer who enjoys building foundational infrastructure.
• Comfortable owning complex backend systems end‑to‑end.
• Pragmatic, disciplined, and focused on production quality.
• Interested in working in a domain that will evolve significantly over the coming years.

All your information will be kept confidential according to EEO guidelines.

Global team. Global reach. Global impact.

At Sectigo, we believe doing good is good business. Our strength and our success come from our team of passionate, engaged individuals who make a difference, both locally and globally. Our commitment to engagement is rooted in an unconditionally inclusive workforce, embodying our unique perspectives, heritages, and backgrounds, all as diverse as the experiences of each Sectigo employee. Importantly, we strive to be recognized not only as the CLM leader but also for our intentional efforts to promote employees into the roles that most challenge and excite them, into experiences that allow them to grow their interests as we grow the business. We are committed to bringing a little bit of fun and a whole lot of happiness into everything we do so that our work – and our team members – reflect the positive outcomes we deliver to our customers every day.