What Software Architects Actually Do
A Day in the Life
Software Architects operate at the intersection of technology strategy and practical implementation. They're responsible for decisions that shape how systems evolve over years, not weeks. When a company decides to migrate to microservices, adopt a new database technology, or redesign their API layer, architects lead these initiatives from concept to execution.
Curiosity & fundamentals
Independence & ownership
Architecture & leadership
Strategy & org impact
Software Architect vs. Staff Engineer
One of the most common questions in hiring: what's the difference between a Software Architect and a Staff Engineer? The distinction matters for setting expectations and evaluating candidates.
Software Architect Focus
- System-wide design — Defines how multiple systems work together
- Technology strategy — Selects technologies and patterns for the organization
- Documentation and standards — Creates architecture decision records, design guidelines
- Cross-team influence — Works across many teams to ensure alignment
- Longer time horizons — Plans for 2-5 year technical evolution
- Less hands-on coding — May write code but primarily for prototyping
Staff Engineer Focus
- Deep technical execution — Solves the hardest problems within a domain
- Hands-on implementation — Writes production code regularly
- Team-level influence — Primarily impacts 1-3 teams directly
- Technical mentorship — Grows other engineers through code review and pairing
- Shorter time horizons — Focuses on quarterly or yearly objectives
- More specialized — Often expert in a specific technology or domain
When to Hire Which
Hire a Software Architect when:
- You have 50+ engineers and need technical coherence across teams
- Major platform migrations or technology changes are planned
- Teams are duplicating efforts or building incompatible systems
- You need someone to define standards and patterns
- Technical debt is accumulating faster than you can address it
Hire a Staff Engineer when:
- You need deep expertise in a specific domain (ML, infrastructure, security)
- The hardest problems are within a single system, not across systems
- You want someone who leads by shipping code
- Teams are small enough that cross-team coordination is manageable
- You need someone who can both design and implement
Many organizations need both roles, and some have engineers who do both.
Types of Architects
Software Architect
The most common type. Focuses on application architecture—how software systems are designed, how code is organized, and which patterns and practices teams should follow. Works closely with engineering teams on day-to-day technical decisions.
Typical responsibilities:
- Designing service boundaries and APIs
- Establishing coding standards and patterns
- Reviewing technical designs from engineering teams
- Prototyping new approaches before team adoption
- Maintaining architecture documentation
System Architect
Broader scope than software architects. Focuses on how multiple systems (not just software) work together—including hardware, networks, and third-party services. Common in enterprises with complex IT landscapes.
Typical responsibilities:
- Designing system integration patterns
- Evaluating and selecting vendor products
- Ensuring systems meet security and compliance requirements
- Capacity planning and performance architecture
- Disaster recovery and business continuity planning
Enterprise Architect
Strategic role focused on aligning technology with business goals across an entire organization. Less hands-on, more governance and planning. Typically found in large enterprises with complex technology portfolios.
Typical responsibilities:
- Technology roadmapping aligned with business strategy
- Portfolio management of technology investments
- Defining enterprise-wide standards and governance
- Vendor relationship management
- IT budgeting and resource allocation
Domain Architect
Specialized architect focusing on a specific technical domain: data architecture, security architecture, cloud architecture, or integration architecture. Deep expertise in one area rather than breadth across systems.
Typical responsibilities:
- Domain-specific standards and best practices
- Evaluating domain-specific technologies
- Advising teams on domain-specific decisions
- Staying current with domain innovations
- Building domain-specific communities of practice
For Most Companies
If you're under 500 employees, you probably need a Software Architect or Domain Architect. Enterprise Architect roles are typically only justified in large organizations with complex technology portfolios. System Architect roles are common in companies with significant hardware or on-premises infrastructure.
Where to Find Software Architects
High-Signal Sources
Tech community leadership:
- Conference speakers at QCon, O'Reilly Architecture Conference, GOTO
- Authors of technical books or influential blog posts
- Contributors to architecture frameworks (TOGAF, C4 model)
- Leaders of architecture-focused meetups
Open source and standards:
- Maintainers of popular frameworks or libraries
- Contributors to technical RFCs and standards
- Authors of architecture decision records in public repos
Previous architect roles:
- Former architects at similar-stage companies
- Tech leads promoted to architecture at growing companies
- Staff/Principal engineers seeking broader scope
Career Paths to Architecture
Architects typically come from several backgrounds:
| Path | Strengths | Watch For |
|---|---|---|
| Senior/Staff Engineer → Architect | Deep technical skills, hands-on credibility | May struggle with soft skills, documentation |
| Tech Lead → Architect | Team leadership, project delivery | May lack system-wide thinking |
| Consultant → Architect | Breadth of experience, communication | May lack depth in one stack |
| Domain Expert → Architect | Deep domain knowledge | May struggle with broader scope |
Sourcing Tips
- Don't cold-outreach with "architect" in the subject line — Many engineers associate the title with "doesn't code anymore" and ignore it
- Highlight technical challenges — Architects are drawn to interesting problems, not just titles
- Emphasize influence and impact — They want to shape technical direction, not just review others' work
- Be clear about scope — Are they enterprise-wide? Platform-specific? Domain-focused?
- Mention the team — Quality of engineers they'll work with matters
Skill Levels and Progression
Junior Architect (rare title)
Most architects have significant experience before taking the title. If you see "Junior Architect," it usually means:
- Architecture track at a large consulting firm
- Architect-in-training at an enterprise
- Expect 5-8 years of engineering experience minimum
Software Architect
- 8+ years of engineering experience
- Designed systems handling significant scale or complexity
- Led cross-team technical initiatives
- Strong documentation and communication skills
- Can articulate trade-offs clearly
Senior/Principal Architect
- 12+ years of experience including multiple architect roles
- Shaped technical direction at company or division level
- Proven track record of successful large-scale migrations or redesigns
- Industry recognition (speaking, writing, open source)
- Can influence executives on technology strategy
Interview Focus Areas
System Design Deep-Dive
"Walk me through the architecture of the most complex system you've designed."
- Look for: Clear explanation of trade-offs, understanding of constraints, business context
- Red flag: Can't explain why decisions were made, only describes what was built
Trade-off Analysis
"When would you choose event-driven architecture vs. synchronous APIs?"
- Look for: Context-dependent reasoning, consideration of team capabilities, operational concerns
- Red flag: Dogmatic answers without considering alternatives
Technical Influence
"Tell me about a time you changed how multiple teams approached a technical problem."
- Look for: Soft skills, building consensus, handling disagreement, measuring success
- Red flag: Top-down mandates without buy-in, or inability to influence
Architecture Decision Records
"How do you document and communicate architecture decisions?"
- Look for: Structured approach, consideration of audience, balance of detail
- Red flag: No documentation practice, or documentation nobody reads
Legacy and Migration
"Describe a significant migration or modernization you led."
- Look for: Pragmatic approach, risk management, incremental delivery
- Red flag: Big-bang approaches, ignoring business continuity
Common Hiring Mistakes
1. Hiring Architects Who Don't Code Anymore
Architects need credibility with engineering teams. If they haven't written production code in years, they'll struggle to evaluate modern approaches and may make impractical recommendations. Test for current technical knowledge, not just past experience.
2. Confusing Seniority with Architecture Ability
A 15-year engineer isn't automatically a good architect. Architecture requires specific skills: system-wide thinking, documentation, influence without authority, technology evaluation. Many excellent senior engineers prefer depth over breadth.
3. Overweighting Technology Knowledge
Knowing every AWS service or Kubernetes concept matters less than understanding when to use (or not use) specific technologies. Architects who can learn and evaluate new technologies are more valuable than those who memorize documentation.
4. Ignoring Communication Skills
Architecture impact comes through influence. An architect who can't explain decisions clearly, write effective documentation, or build consensus will have limited effect. Test communication as seriously as technical skills.
5. Unclear Scope and Authority
Before hiring, define: What decisions does the architect own? What's their authority vs. advisory role? How do they work with team leads? Unclear expectations lead to conflict and frustrated architects.
6. Expecting Immediate Impact
Architecture changes take months or years to show results. Architects who promise quick fixes are either overselling or don't understand the role. Set realistic expectations about timeline to impact.
Recruiter's Cheat Sheet
Resume Green Flags
- Led technical strategy for significant systems or migrations
- Architecture decision records or technical RFCs in portfolio
- Conference speaking on architecture topics
- Cross-team technical leadership experience
- Both hands-on engineering and architecture experience
- Measurable impact (reduced latency, improved reliability, successful migrations)
Resume Yellow Flags
- No hands-on engineering in 5+ years
- Only worked at one company or technology stack
- Architecture titles without specific accomplishments
- Heavy on certifications, light on implementation
- No evidence of collaboration or influence
Technical Terms to Know
| Term | What It Means |
|---|---|
| ADR | Architecture Decision Record—document explaining a technical decision |
| C4 Model | Popular architecture diagram approach (Context, Container, Component, Code) |
| Event-driven | Architecture where systems communicate through events, not direct calls |
| Service mesh | Infrastructure for managing service-to-service communication |
| Domain-driven design | Approach to software design based on business domains |
| Technical debt | Accumulated shortcuts that slow future development |
| CAP theorem | Trade-off between consistency, availability, and partition tolerance |
| TOGAF | Enterprise architecture framework |
| Strangler pattern | Incremental migration strategy for legacy systems |
Developer Expectations
| Aspect | ✓ What They Expect | ✗ What Breaks Trust |
|---|---|---|
| Decision Authority | →Clear scope of what decisions the architect owns vs. advises on. Authority to set standards that teams follow. Executive support when teams resist architectural direction. | ⚠Expecting architects to "influence" without any real authority. Leadership overriding architecture decisions based on short-term pressures. No consequences when teams ignore architectural guidance. |
| Technical Depth | →Time to stay hands-on with code, even if not writing production features. Access to modern tools and ability to prototype. Engineering teams that respect technical expertise. | ⚠Being pulled into pure governance or management work. No time or permission to write code. Teams that dismiss architects as "out of touch" because they don't ship features. |
| Cross-Team Access | →Visibility into what all teams are building. Ability to attend any team's planning or design discussions. Regular 1:1s or working sessions with tech leads. | ⚠Being siloed to one team or product area. Finding out about major technical decisions after they're made. Teams that see the architect as an outsider or auditor. |
| Documentation and Communication | →Time and support for creating architecture documentation. Teams that read and follow architectural guidance. Tools for diagramming, documentation, and knowledge sharing. | ⚠Documentation created but never read. No investment in architecture knowledge sharing. Expectation to document without time allocated. |
| Long-Term Thinking | →Permission to work on multi-quarter or multi-year initiatives. Support for addressing technical debt and platform improvements. Business understanding of why architecture investment matters. | ⚠Constant pressure to deliver short-term features. Architecture work deprioritized whenever something urgent comes up. Leadership that doesn't understand why investing in architecture matters. |