Custom Software Development
We own delivery.
You own the outcome.
Engineering-heavy software for US B2B companies that need a team to own a difficult product, integration, or AI initiative. Not just provide resources.
- 2015 Delivery since 2015
- 50+ Engineers on delivery
- 25+ years Architecture
- 500+ Findings triaged
Who this is for
Your roadmap is moving faster than your team
We work with US B2B companies that have a real engineering problem and need a team that owns the outcome, not one that bills the hours.
You're a fit if
- B2B SaaS, FinTech, HealthTech, or industrial tech company, 50 to 500 employees
- Product or engineering roadmap is ahead of what the internal team can ship
- You need to ship a complex product, integration, or AI feature without hiring a full team
- You want a team accountable to a defined outcome, not a body shop
- Partial US hours overlap and a named accountable lead matter to you
Strong signals we look for
- Recent funding round with product buildout planned next
- New CTO or VP Engineering who needs to move fast
- Multiple open engineering roles with no headcount budget to fill them all
- Platform modernization, migration, or integration underway
- AI initiative approved but no clear path from proof of concept to production
- New product launch or customer portal with a real deadline
What we build
Four delivery workstreams, one accountable team
75% of our work is custom software and engineering delivery. 25% is AI implementation inside existing products. The same delivery discipline runs across both.
Custom product & software development
Full-stack delivery of SaaS products, B2B portals, mobile apps, and backend systems.
- New product builds and MVPs
- B2B SaaS platforms and customer portals
- iOS, Android, and cross-platform mobile
- API-first backends and data pipelines
Engineering capacity & roadmap ownership
We embed as an accountable delivery squad when your roadmap outpaces your team.
- Roadmap ownership for defined product areas
- Squad augmentation with delivery accountability
- Interim CTO and fractional technical leadership
AI implementation in existing software
AI features and agentic workflows taken from your existing product to production.
- AI integration into existing SaaS products
- POC-to-production delivery
- RAG, LLM, and agentic workflow builds
- Human-in-the-loop systems with monitoring
Platform modernization & integrations
We assess, scope, and execute modernization, integrations, and migrations.
- Legacy platform rewrites and cloud migration
- API and third-party system integrations
- Workflow automation and system consolidation
- Performance and security remediation
E-commerce & digital platforms
High-volume e-commerce platforms, catalogues, and digital marketing.
- E-commerce platforms and storefronts
- Pricing intelligence and catalog systems
- Digital marketing and SEO infrastructure
- Customer engagement and CRM integrations
Engineering audits & technical due diligence
Structured audit of architecture, security, and code quality before you build or invest.
- Pre-investment technical due diligence
- Architecture and security review
- Performance and Core Web Vitals remediation
- Code quality and technical debt assessment
Why Realisier
Not a staffing firm. Not a body shop.
89% of executives want strategic outcome-drivers, not transactional vendors. Every engagement starts with a written scope, a named owner on both sides, and a defined success gate, before a single line of code is written.
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Ownership, not resource rental We take accountability for a defined outcome. You measure us by results, not by hours.
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25 years of enterprise architecture behind every build Sachin Shinde, ex-Microsoft Senior Technical Architect, leads architecture on every engagement.
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Proven in US enterprise production Production software for US enterprise clients. Continuous delivery for anchor clients since 2015.
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AI is part of the delivery, not a separate track We build AI components to production grade. Not a POC handed off to another team.
Production work
Systems running. Not slide decks.
These are production systems, with named clients, that operate today, not case studies about what software could do.
E-commerce · Precious Metals
BOLD Precious Metals
AI in production since 2021
Customer re-engagement system modeled a $1.79M cart-recovery opportunity. Teams AI pricing agent running in production.
See all work →
Oil & Gas · Mineral Rights
MineralView
AI in production since 2019
Continuous delivery and AI for a mineral rights data platform. Outreach automation and AI-assisted engineering at scale.
See all work →
How we work
Process certainty. Not timeline promises.
We do not publish delivery timelines or pricing. Every engagement is scoped per client. What we publish is the process, because that is where most software projects encounter problems.
01
Written scope before any build
We document what success looks like and you sign off. No scope, no build.
02
Named owner on both sides
A named lead on both sides. No proxy project manager with no authority.
03
Weekly demo of working software
Every week: running software, not a status report. Issues surface in week two.
04
Approval gates before any deployment
Nothing reaches production without your sign-off. AI actions go through human review.
05
Defined success before we start
Documented outcome gate: change, measurement, and stop decision. Agreed before build.
06
Clean handoff with full documentation
Source code, architecture docs, and runbook. We train your team to own what we built.
Start the conversation
Tell us what's stuck
If your roadmap is blocked, your team is at capacity, or an AI initiative is sitting between pilot and production. Send us a short brief. We will respond within one US business day.
A founder replies within one US business day. No sales calls before a real conversation.