Software that sets you apart

Celestify helps ambitious teams build scalable, high-quality software, from first launch to long-term evolution.

Trusted by 150+ companies across the globe to build and scale their software.

Revolut
Perry Weather
Airbus
Texpert AI
HSBC

About us

Not another dev shop

Team collaboration
We’re not a dev agency on the outside.
We’re your product team on the inside.

We work with your tools, move at your pace, and give you clear answers. Not vague timelines. No ticket silos. No disappearing acts. Just product-focused devs who think beyond the code.

We build like it’s our business, because your success reflects on ours.

We stay close to the products we build and many of our client relationships last 3+ years, because we keep delivering value.

Less agency, more ownership. That’s Celestify.

CTO-level thinking, baked in

Every project gets senior engineering oversight and strategic guidance. No juniors left unsupervised, no random tech decisions. You get a team with opinions, experience, and people who care about the outcome as much as you do.

For product-first founders

We’ve built startups, shipped products, managed messy projects, and fixed bad agency code. We think in terms of added value, not just tickets. Whether you’re launching from zero or scaling a live product, we bring speed, strategy, and clarity, without adding noise.

No chaos. No jargon. Just results.

You’ll always know what’s happening, what’s next, and what it costs. Async updates, open Slack/Teams access, fixed pricing, and a dev team that gets things done without you chasing.

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Why Celestify

What differentiates us

Product-first mindset
Product-first mindset

We don't just build what's in the spec. We ask questions, challenge assumptions, and help you make better product decisions, from day one.

Embedded, not outsourced
Embedded, not outsourced

You'll find us in Slack, not behind a ticket wall. We integrate into your workflow and move like an internal team would. Responsive, in sync and easy to work with.

AI where it counts
AI where it counts

We don't chase trends. We design AI features that solve real problems. From copilots to smart automations, leaving the hype at the door.

Pricing that fits
Pricing that fits

Whether it's a fixed-scope build or hourly support, we keep our pricing clear, scoped, and scalable. No mystery, no surprises.

CTO-level leadership
CTO-level leadership

Every project is backed by senior technical oversight, from architecture to tradeoffs to roadmap calls. No junior-led chaos. No crossed fingers. Just clarity.

Results that stick
Results that stick

We offer a 100% satisfaction guarantee, and most clients don't just stick around, they scale with us. Our median partnership lasts over 3 years.

Less Agency

More Ownership

Our Process

Start in 4 simple steps

01
Book a call

You tell us what you're building. We'll ask smart questions, share early thoughts, and make sure we're a good fit.

02
Get a clear build plan

We'll map out the scope, priorities, and tech decisions - everything you need to move fast without cutting corners.

03
We start building

You get a team that works with your flow. Real updates, async demos, and a pace that feels in sync, not distant.

04
Launch, iterate, grow

We don't disappear after v1. We stay close, help you scale, and keep improving the product with you.

Success Stories

What clients say about Celestify

Celestify improved our website performance and streamlined the backend, enabling our team to build faster, better customer experiences resulting in higher conversion and more pipeline.

Evan Benet

SVP of Growth, Perry Weather

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We have been working with Paras and his team at Celestify for almost 3 years and we are extremely pleased overall with his services. He is smart, plans well, thinks of solutions ahead, carries through full implementation, and is there to support after deployment.

Miriam Boudreaux

CEO, Mireaux Management Solutions

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Working with Celestify has been a truly smooth and seamless experience. What stands out most is their unwavering commitment to finding solutions, no matter how complex the challenge, they approach every task with a can-do mindset and deliver results.

Drishdey Caullychurn

Founder & CEO, TEXpert AI

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Working with Celestify doesn't feel like working with an external team. That's the best way to explain how simple and enjoyable it is to work together.

Ishaaq Shafi

CEO & Founder, Chat University

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Paras and his team are absolutely incredible. Super professional, very knowledgeable and product centric. He guided our team of developers and delivered a world class product within a very short timeline.

Agnieszka Dulas

Co-founder, Fritty Club

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Resources

Latest Blog Posts

3 Awesome SaaS Apps and their Open Source Alternatives to Grow your Business
Monday, August 4, 2025
We explore open source alternatives to Zapier, Airtable, and Calendly, and how switching can give you more control, better value, and a stronger foundation for growth.
Paras Daryanani