3Pillar is hiring a Senior Architect to act as the primary expert within a technology stack, owning high-level design choices and dictating technical standards. You will steer projects that redefine urban living, establish new media channels, or drive innovation in healthcare, serving as the cornerstone for our future technical direction.

What You'll Do

Act as the emissary of the architecture.
Serve as technical owner from design to resolution of tailored solutions to sophisticated problems on cloud platforms based on client requirements.
Partner with stakeholders to determine functional and nonfunctional requirements, as well as business goals.
Assess and plan for new technology insertion.
Manage risk identification and risk mitigation strategies associated with the architecture.
Act as an active leader in the Architecture Practice community, mentoring Engineers and others through Communities of Practice or on project teams.
Develop and execute or lead the execution of a technical vision, within one or more business or technical domains, with a focus on business value.
Design architectures that align with the DevOps culture and QA Automation practices.

What We're Looking For

A Bachelor’s degree or higher in Computer Science or a related field.
A minimum of 10+ years of experience/expertise working as a Software Architect and/or Solutions Architect.
Deep and highly specialized skill set in telecommunications architecture, cloud-native development, and systems modernization.
Proficiency in C++, Java 21, Spring Boot, Redis/Redisson, Oracle, PostgreSQL, NoSql, Characterization Testing, Telecom Protocols.
Proven experience leading the re-platforming and iterative, low-risk migration of legacy C++ systems to modern Java/Cloud-Native platforms.
Ability to design for and achieve high-throughput, low-latency performance targets (e.g., matching or exceeding 7,000–8,000 Events Per Second).
Deep knowledge of complex telecom libraries and protocols, specifically TCAP and Diameter, including designing necessary abstraction layers.
Familiarity and adherence to the SDS platform, FSMApp programming model, and non-blocking I/O patterns.
Expertise in defining and implementing Cloud-Native Network Function (CNF) architecture, ensuring deployment across major cloud platforms (AWS, Azure, GCP).
Strong command of Kubernetes, including defining resources and configuration for horizontal scaling.
Deep understanding of load balancing and ingress layer concepts to implement IMSI-based affinity for session routing.
Expertise in architecture patterns that combine stateless external persistence with local in-memory caching.
Hands-on experience with Redis-compatible distributed cache services for high-availability.
Design and implementation of a two-tier cache architecture (L1 local cache, L2 distributed cache) for low-latency subscriber profile access.
Profound understanding of the Repository pattern to abstract and swap underlying cache and persistence implementations.
Understanding and managing data consistency models, particularly accepting Eventual Consistency for reference data caching.
Defining and enforcing rigorous quality control, including a systematic 7-step porting pattern and requirements for Characterization Testing.
Designing and enforcing a Mandatory CI/CD Pipeline with strict quality gates.
Architecture design for Metrics Export, Distributed Tracing, and Structured Logging across the new microservices platform.
Knowledge of cloud-native security practices, specifically Secrets Management and Network Policies.
Serving as the final architectural authority to review, approve, and guide key design and commercial decisions with the client.

Nice to Have

Ideal candidate would serve as the technical authority for the project, guiding major design decisions and ensuring the new platform meets performance, scalability, and quality criteria.
Contribute to code reviews, documentation and architectural artifacts.
Provide leadership and oversight to the project team pertaining to solution design.

Technical Stack

C++
Java 21
Spring Boot
Redis/Redisson
Oracle
PostgreSQL
NoSql
Telecom Protocols (TCAP, Diameter)
AWS, Azure, GCP
Kubernetes

Team & Environment

Part of a global team and Architecture Practice community.

Benefits & Compensation

Flexible work environment - office, home, or a blend.
Remote-first approach from interviews to onboarding.
Global team, learning from top talent around the world.
Focus on well-being including fitness offerings, mental health plans (country-dependent), and generous time off.
Professional services model enabling accelerated career growth and development opportunities across projects, offerings, and industries.