Top React Developers in Berkeley

Web Development for Software Company

They are always so responsive with any issues and proactive in making sure our needs are being met and if they can provide any other services that we may need addressed.

Custom Software Dev for Telecommunications Company

We were impressed by their breadth of talent and proactive idea-sharing.

Staff Augmentation for Data Services Company

They've been flexible and adapted to using tools we prefer, such as Slack, and are proactive about keeping an updated calendar listing the availability of all the developers we work with.

Staff Augmentation for Travel Booking Services Platform

We've had really good results from BairesDev's developers. They communicate up and are very proactive and creative thinkers. It really doesn't feel like you're dealing with a contractor. This has been our experience.

App Dev for Digital Histopathology Company

The team that we have built here truly has been insanely impressive. The amount of frontend work that has been done with great attention to detail has surpassed my expectations. I wholeheartedly recommend their services to anyone seeking a team of top-tier professionals who are dedicated, reliable, and immensely talented. Overall, our experience with Vention has been nothing short of exceptional. Their team of contractors consistently met and surpassed our expectations, delivering outstanding results and contributing significantly to our growth.

Web3 Custom Software Development for Software Company

Our end client was highly satisfied with iTechArt Group’s work, which was our number one metric. We also evaluated iTechArt Group’s ability to use our tools and were impressed with their initiative to go beyond the minimum scope and deliver a functional project. I was most impressed with iTechArt Group’s collaboration and technical skills. During the project’s development, iTechArt Group was required to invent solutions in order to resolve problems, and they figured out answers quickly.

QA Services & Features Dev for Digital Marketing Company

The qualifications of the Solvd team and the degree of their involvement in the project set them apart. No, the quality of their work was beyond our expectations.

iOS Development & Consulting for Photo Editing App

JetRuby has delivered high-quality work on everything we've requested thus far. The whole process has been relatively seamless. They go above and beyond expectations and are very persistent in overcoming any challenges.

Web Dev & Design for Fintech Association

Overall, we are okay with everything; they’re professionals, and they’ve been able to meet and exceed our expectations.

Website Development for Dental Clinic

In general they've matched or exceeded our expectations.

Web3 Platform Design & Development for Digital Games Company

David's team was super responsive even with some challenging time zone differences. Projects all launched on schedule. I was impressed with their ability to adapt to any challenge we put in their path.

Mobile & Web App Design & Development for Sports Betting Co

They delivered efficiently and if there was a possibility of a delay this was communicated promptly and properly. They responded well to my needs and were open in having conversation about how to make the product better as well.

Custom Software Dev for Mgmt Consulting & Coaching Firm

They’ve performed exactly what they’ve promised and even exceeded expectations. Most developers only want to take something that’s already been created and build on that. However, Savas Labs is really involved in the creative process — it’s important to them that everything is working well.

Custom Drupal Dev for Activism Map Site

The goals that we set in the beginning were all exceeded. We laid out our expectations for usability, visual attractiveness, and accessibility on different devices. They met every one of our goals in each area.

MVP Dev & UI/UX Design for Real-Time Events Application

They did amazingly on this front. All of our questions were answered concisely. We did daily scrums to go over our development progress, and we found that we were actually exceeding expectations. The scope of the work was good for six weeks, and they were able to do it all in four.

SaaS Redesign for Photography Management Firm

Their project management is their most valuable asset. Anna [Business Analyst, Gearheart.io] is very impressive because of her amazing attention to detail and ability to never miss a beat. Every step of the way, she has validated our assumptions on some of the design and technical decisions. She's offered alternative ideas and solutions, and has contributed to the overall health of the project outside of a normal development relationship. She's definitely helped us think through complexities within the app. It's like having another person who can analyze and deconstruct to point out flaws. This is one of the biggest reasons we've stayed loyal to Gearheart.io, and why we consider them to be such an integral part of our process now.

Mobile Patient Platform Development for Healthcare Company

The most impressive aspect of the project was their team's ability to seamlessly unify and automate every step of the patient's healthcare journey through the luma patient platform. By creating a comprehensive mobile app that covered access to clinics, medical procedures, and financial management, Phenomenon studio transformed a complex process into a user-friendly and intuitive experience. The personalized health dashboard they designed, providing real-time insight into Health data, upcoming appointments, and financial transactions, showcases their expertise in creating a holistic and tailored solution. This impressive integration of various health care aspects into a single, coherent platform demonstrated Phenomenon's commitment to revolutionizing patient care and empowering individuals to take control of their health journey.

App Development for Price Comparison Company

They were very flexible and accommodating to our sometimes rather unusual needs and circumstances. Unlike many other vendors I have experience with, they are very trusting and prepared to take risks for the sake of building a solid business relationship. They have very high competence standards while being friendly and familiar at the same time.

Custom Software Development for Digital Marketing Agency

Since partnering with Digis, our application has evolved from a simple proprietary tool into a robust consumer-facing B2B SaaS platform that seamlessly integrates with Facebook, Twitter, and Instagram, enabling content production, publishing, and management. Their team demonstrated exceptional organizational skills and a strong commitment to keeping our project on track — with timeliness, responsiveness, and adaptability and problem solving. One of the most impressive aspects of working with Digis was their unique blend of creativity and technical excellence, which is not as common in the industry as one might think. Their performance throughout the project was exemplary, and they met our expectations at every turn. Their professional approach and the quality of their work were consistently above par, and we look forward to continuing this partnership.

Custom Software Dev for Healthcare Organization

I’m 100% satisfied with Altoros’ work, and they’ve exceeded my expectations. Altoros is excellent at project management. They’ve delivered the project under budget, ahead of schedule, and with a smile.

Web & App Dev for Interactive Social Platform

They’re responsive and exceed our expectations. Even though there’s a large time difference, we mainly communicate via Skype, and they try to find convenient times to talk. They’re more than just a hired company; they collaborate to make the best product possible.

Web Dev & SEO for Natural Hair Products Company

What I really like about Pravaah Consulting is how they never say no. They always try to figure something out. I sometimes have outlandish ideas, but their team always tries to achieve what they can within our budget and timeframe. It’s not very often that a company will be willing to work with us on that level.

Information Platform Design & Dev for IT Services Company

The productivity efficiency of developing our platform has improved significantly. Without G360Technologies, the project would've taken us twice as long. G360Technologies always stays on schedule against our specifications. The team is very disciplined and delivers work on time, around 95% of the time, which is a good rate for software development projects.

Website Redesign & Branding for Software Dev Company

The most impressive is actually how they play as a part of the FlashGrid team, adapting to our business needs. Moreover the team was aligned with our design and product vision from the very beginning, and were coming up with new innovative ideas. They were very dedicated and took ownership of the website and helpdesk support.

Mobile App Development for Law Enforcer Mobile Ecosystem

Diffco became a solid part of our team and organized all of the development processes in the right way. We had regular meetings, there were useful tools for project management and team collaboration in place. While working with Diffco, I felt like they were a part of our own team.

Custom Software Dev for Mental Health Assessment Company

The team's assessment of information gathering was efficient and effective. I must also specifically highlight the quality of the Project Manager, one of the best I've seen in terms of assessing the comprehensiveness and relevance of gathered data, aiming for a high percentage of key insights derived. All timelines and the budget estimation were also met. My expectations were highly exceeded overall.

Staff Augmentation Services for Learning Platform

Light IT Global was a good partner who exceeded our expectations; I would recommend their services to anyone. They provided capable, technically skilled engineers who delivered on our asks. I was impressed with the quality and proactivity of their engineers. They went above and beyond the requirements to deliver the best possible work, which was nice.

Software & Web Development for Talent Acquisition Solution

The way they use Jira is excellent. They provide continuous updates and are transparent and detailed in their reporting for every invoice. The cost estimates at the beginning align with the development results, too. When it comes to meeting deadlines, they exceed expectations.

Web & Mobile App Dev for Food Manufacturing Company

We had a demand for the highest level of data protection but got no clue how to implement this and Light IT provided us several options, one of which was even better than we initially imagined. Being on the business side, we didn’t know what technologies to choose so Light IT kindly consulted us on this part and chose a suitable approach.

Web & Mobile App Dev for Grocery Delivery E-Commerce Co

Additionally, Sigma Software Group has implemented many features that have increased our average order value by about 12%. Sigma Software Group has exceeded our expectations. Moreover, what really has stuck out to me is that they’re very contemplative about their work. Instead of going through their day-to-day, they’re often thinking about what recommendations they can give us to improve the product.

Application Dev for Advertising Privacy Practices Org

App delivered in time and in budget. Met and exceeded our expectations. They are terrific to work with. Not only do they think through a project holistically at the beginning, but they are adept at helping provide advice as the development progresses to make sure that all the value of the tech is being captured by your enterprise.

Mobile App & Web Development for VR Travel Company

The design phase was particularly impressive, as the team delivered high-quality, innovative designs that exceeded our expectations. Their attention to detail and creative approach have set a strong foundation for the app's development. The team consistently kept us in the loop with regular updates and feedback sessions, making the entire process smooth and collaborative.

Web App Dev for Veterinary Services Provider

DianApps has executed a successful build and exceeded my navigation and functionality expectations. Overall, they completed a total of 11 sprints and delivered results more quickly than we expected, which was great. DianApps has two core strengths: market knowledge and speed.

IT Staff Augmentation for Digital Solutions Company

They ran a really big project with many stakeholders and really went out of their way to ensure that all stakeholders are consulted and eased in their concerns. They were also extremely flexible with the changes we requested and always completed all the projects on schedule. The team from Bluelight Consulting was able to work with our legacy applications. They containerized them and created a CI pipeline to support building and deploying to GKE.

Chatbot for Customer Software Development Company

Yellow truly exceeded our expectations. Their team is highly skilled, and their experience was able to completely meet our needs. They are also very proactive in communication and were honest with their reporting of the details and insights of the project.

Custom Web Dev for Musical Cover Sharing Platform

Yellow exceeded my expectations. I was always able to reach Ivan by Skype and he was pushing the code on Bitbucket every day. I would wake up in the morning to see email updates and view their changes.

Web & Mobile App Dev for SaaS Company

Yellow has exceeded our expectations, especially in terms of meeting deadlines. There have been periods where we’ve had trouble keeping up with their team’s speed.

Web Development for Design Studio

The updates that Yellow has made have made the site more stable and efficient and in the case of the Google speed optimization, have increased site speed 10x, which will have a massive impact on user experience as well as SEO performance. They have greatly exceeded all expectations.

Interactive Video App for App Development Company

We trusted them to use their team as needed, and they delivered products on time, under budget, and of a higher quality than we expected.

Mobile App Dev for Telecom Operator & Communications Provider

Infinum is a young team with a sharp digital mindset. They approach our engagement of over five years as a partnership. The team always suggests improvements and proactively makes changes at no extra charge.

iOS Mobile App Dev for Flight Booking Platform

Their quality of work was very high and they’re proactive with solutions. They had a very hard job to complete within a very short time period. The team is really good at thinking like a startup, which worked out well for us.

Mobile & Web Development for Startup B2B Marketplace

Infinum engineered things correctly while remaining proactive about making sure to create the right code, rather than finding shortcuts. Infinum asked many questions about our design, which we hadn't thought to specify, and erred on the correct side, without us having to request this.

Mobile App Dev & UX/UI Design for Manufacturing Co

I was continuously impressed with their ability to deliver within the budget and timeline. It far exceeded our expectations. They made everything seem effortless, and considering how smoothly things went, it's hard to think of anything they could improve on!

Custom Software Development for Logistics Co

Thirstysprout exceeded our expectations, and there’s no room for critique. They kept us informed at every stage, providing regular updates and addressing our feedback swiftly. Every deliverable was met on schedule, which was crucial for us given the tight timelines we were working with.

Mobile App Dev & UX/UI Design for Fashion Brand

They not only met but often exceeded our expectations, ensuring that every aspect of the project was executed seamlessly and in alignment with our vision. Their commitment to ongoing support and attention to detail showed a genuine dedication to our success.

Generative AI System Dev & Training for IT Firm

Honestly, it's hard to find fault. ThirstySprout consistently exceeded our expectations. They provided a proactive and personalized service, we experienced a significant improvement in client retention.

IT Staff Augmentation for Food Manufacturer