We are seeking an experienced Fractional Software Architect to operate as a senior, hands-on technical leader responsible for defining, evolving, and communicating the architecture of complex, mission-critical software systems.
This is a hybrid leadership role that blends:
- deep technical expertise
- engineering leadership
- client-facing advisory responsibilities
The role is designed for architects who can work independently in a part-time or project-based engagement model, while influencing multiple teams and long-term product direction across the organization.
You will guide the system architecture across distributed backend services, data-centric applications, and modern React-based front-end platforms, ensuring scalability, performance, security, and architectural integrity.
About the project:
Our client modernizes complex government capability development by replacing legacy, manual workflows with data-driven and software-enabled decision making.
Its core platform delivers:
- advanced analytics
- AI-powered applications
- high-quality integrated data
- Serving teams across:
- supply chain
- research & development
- production & sustainment
- logistics
- long-term modernization
The platform is widely adopted across the U.S. defense and national security ecosystem, supporting faster and more informed strategic and operational decisions.
Location:
Hybrid - Boston, US.
Requires US citizenship and hybrid work from the Auburndale, MA office 3 days per week, with occasional travel to Pittsburgh.
Skills & Experience:
- Bachelor's degree in Computer Science, Engineering, or related field;
- 15 years of professional software engineering experience, including senior or leadership roles (Senior Engineer, Lead Engineer, Software Architect, Solutions Architect).
- Strong experience designing and implementing distributed systems, services, or microservices, including data modeling and integration patterns.
- Solid hands-on experience with Java or similar backend technologies used in large-scale production systems, including API and service design.
- Practical experience collaborating with React-based front-end teams, including defining API contracts for modern, data-heavy SPAs
- Solid understanding of cloud platforms (AWS, Azure, or GCP), containerization, CI/CD, and modern DevOps practices, with the ability to guide teams on infrastructure and operational concerns.
- Experience with non-functional requirements: performance, reliability, observability, security, scalability, and maintainability.
- Proven experience in a client-facing or stakeholder-facing technical role (e.g. technical pre‑sales, solution architecture, engagement lead)
- Demonstrated ability to communicate complex technical topics to non-technical stakeholders and to build consensus around architectural decisions
- Experience managing or leading engineering teams or initiatives, including prioritization, scoping, and balancing technical and business constraints.
- BS in Computer Science or similar technical degree.
- Proven track record of leading or influencing architectural decisions on large or mission-critical projects, preferably in a multi-team environment.
- Fluent in AI-enabled software development
Nice to have:
- Experience working in or with government, defense, national security, or adjacent analytics/insights domains, especially in a data-heavy or intelligence context.
- Familiarity with data platforms, analytics pipelines, or large-scale data processing (e.g., event streaming, warehousing, graph or time-series data).
- Background designing systems with elevated security, compliance, or regulatory requirements (FedRAMP, ITAR, CJIS, or similar frameworks).
- Prior experience operating as a fractional, consulting, or part-time architectural leader across multiple products or clients.
Responsibilities:
- Define and evolve overall system and platform architecture, including service boundaries, core components, and integration patterns.
- Translate business goals and product requirements into clear architectural roadmaps and implementation strategies.
- Lead technical conversations with stakeholders, explaining trade-offs, constraints, and solution options.
- Act as a trusted technical advisor, constructively challenging ideas that conflict with scalability, security, or architectural integrity.
- Facilitate architecture workshops and discovery sessions to translate client needs into actionable technical direction.
- Conduct architecture and code reviews for critical components, identifying risks, bottlenecks, and improvement opportunities.
- Drive decisions around technology stack, frameworks, infrastructure, and deployment strategy.
- Establish and maintain engineering standards, architectural principles, and best practices.
- Support teams during major technical initiatives, including:
- re-platforming & modularization
- cloud migration
- performance & reliability programs
- Provide hands-on mentoring to senior engineers, helping them grow into future architectural leaders.
Skills Required
- 15 years of professional software engineering experience
- Strong experience designing and implementing distributed systems or microservices
- Experience with Java or similar backend technologies
- Hands-on experience with React-based front-end collaboration
- Solid understanding of cloud platforms and DevOps practices
- Proven experience in a client-facing technical role
- Demonstrated ability to communicate complex technical topics to non-technical stakeholders
- Experience managing or leading engineering teams
- Fluent in AI-enabled software development
Proxet Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Proxet and has not been reviewed or approved by Proxet.
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Healthcare Strength — Job postings indicate comprehensive medical insurance is offered, particularly for U.S.-based roles. This points to solid core health coverage being part of the package.
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Flexible Benefits — Role descriptions highlight flexible hours and remote/hybrid options. This flexibility appears to be a consistent element across multiple postings.
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Fair & Transparent Compensation — Compensation processes are described as transparent with timely payments and paid overtime in key hubs. This supports a perception of fairness in how pay is administered.
Proxet Insights
What We Do
Proxet is a global full-service firm specializing in data, AI, and custom software development. We help organizations accelerate digital transformation by combining deep data expertise with world-class product engineering and cloud capabilities. Our teams deliver the personal touch of a boutique partner with the innovation and business acumen of a large consultancy — supporting clients across industries with data platforms, AI solutions, software modernization, and managed teams. With over 15 years of experience in building complex solutions for enterprise-level businesses, SMBs, and startups, Proxet has delivered 100s of projects in Healthcare, Marketing, Financial Services, Paytech, Retail, Real Estate, Aerospace & Automotive verticals. Proxet also provides thought leadership and advisory services to fast-growing startups and Fortune 500 companies. About us: - 15+ years in software development - 4 offices globally - 300 engineers & experts - 90% of our projects incorporate ML/AI - 30+ early-stage & VC-backed startups - Enterprise clients with over $1B+ in revenue









