Top 100 Google App Engine (GAE) Developers in San Francisco

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Top 100 Google App Engine (GAE) Developers in San Francisco

September 2023

Looking for a top Google App Engine web app developer in San Francisco?

Google App Engine is best for scaling web apps. For example, if you launch an app and 100 people use it the first day but 1000 use it the second day, Google App Engine automatically allocates resources to meet this demand. 

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List of the Best San Francisco Google App Engine Web App Developers

  • 1
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

    Clients

    • ClassPass
    • ZEFR
    • Gain Capital (forex.com)
    • Merkle

    Industries

    Notable Project

    Vention provides staff augmentation services to a SaaS solutions provider. The scope includes software and feature development and maintenance across the product line.

    "They are all developers capable of delivering their responsibilities."

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  • 2
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • San Francisco, CA

    Founded in 2007, Theorem is a software development firm. The midsize team specializes in custom software development, ux/ui design, IoT development, IT strategy consulting, and more. The company is based in Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California.

    Clients

    • AT&T
    • Starbucks
    • Caterpillar
    • American Express

    Industries

    Notable Project

    TheoremOne developed a strategy and an MVP for an oil and gas construction marketplace. They provided a full delivery team, two full stack engineers, and QA testers.

    "Their thought-leadership in design and their ability to quickly pick up on what we were looking for from the platform."

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  • 3
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    Serokell OÜ is a software research and development company based in Tallinn, Estonia founded in 2015. The team of 26 offer their services in IoT development, artificial intelligence, and blockchain. They work with a wide variety of industries, including financial services and IT, among others. Their blockchain services revolve around initial coin offering consulting and smart contract development.

    Clients

    • Disciplina
    • Tocqueville Group
    • IOHK

    Industries

    Notable Project

    A binary cache hosting company hired Serokell to develop open-source components. The team's tasks included adding an intermediate presentation, a JSON output, and Zstandard compression to executable files.

    "They understood the requirements and delivered."

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  • 4
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Pleasanton, CA

    CitrusBits is a mobile app development company based in Los Angeles, CA and founded in 2005. The team of nearly 60 employees is passionate about creating mobile technology and responsive mobile content for all businesses.

    Clients

    • Burger King
    • Quiksilver
    • J&J
    • DuPont

    Industries

    Notable Project

    CitrusBits designed and developed an Android and iOS app for a coffee chain company. They designed the app's UI/UX using Marvel App and Figma. For development, CitrusBits used React Native and AWS for hosting. 

    “CitrusBits developed an app that answered our company’s needs.”

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  • 5
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Toptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.

    Clients

    • Toptal clients include J.P. Morgan
    • Zendesk
    • Artsy
    • IDEO

    Industries

    Notable Project

    Toptal developed the app and branding of a sports betting aggregator and scoring engine. The project's main goal was achieving growth for the client company.

    "They went above and beyond."

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  • 6
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    Roonyx is a web, mobile app, and AI development company founded in 2008 that caters their services to small business and midmarket clients. They have a team of nearly 30 employees who provide services from Moscow and Boston. They focus on the business services, automotive, and e-commerce industries.

    Industries

    Notable Project

    Roonyx developed Android and iOS applications for a game development company's end client. Roonyx designed the app's prototype and developed it using Flutter. The app helped couriers manage their routes.

    "Everything was done well and, at times, even above our expectations."

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  • 7
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.

    Clients

    • AstraZeneca
    • Expedia
    • Santander
    • Barclays

    Industries

    Notable Project

    Kin + Carta (formerly Spire Digital) completely redesigned the website of a swimming organization. They restructured the UI/UX to make an attractive, user-friendly, and responsive site while integrating it into the existing CMS.

    “They brought something new to the table that we hadn’t seen before.”

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  • 8
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    Mayven is a San Francisco based software design and development company. They were founded in 2015 and have a team of 25 employees. They specialize in web, custom software, and eCommerce development for enterprise and midmarket clients.

    Clients

    • Andreesen Horowitz
    • Segment
    • Lightspeed Venture Partners
    • Pachama

    Industries

    Notable Project

    Mayven Studios provides design and development for a broadcast media company’s podcast marketplace platform. They’ve built the platform using Laravel and now improve it and offer support and maintenance.

    “They’re one of the most efficient companies I've seen in their use of time and money.”

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  • 9
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Oakland, CA

    Founded in 2021, Nimi Tech Limited is a small software development firm based in Oakland, California; Colombo, Sri Lanka and Chennai, India. Their services include custom software development, web development, mobile app development, IT staff augmentation, and more.

    Industries

    Notable Project

    Nimi developed various features for a banking services provider's product. They worked directly with the product engineering and QA teams to support the platform and automate tests.

    "Their leadership was so attentive; I felt like they were my partners."

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  • 10
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • San Francisco, CA

    Galliot is a San Francisco-based software development firm founded in 2018. With an additional office in Montevideo, Uruguay, their 10-man-team develops products for midmarket and enterprise-level clients. While custom software and DevOps are their specialties, they also offer web development and cloud consulting.

    Clients

    • Life science
    • Biotech and Pharma
    • DevOps and Cloud Services
    • iOS and Android Applications

    Industries

    Notable Project

    Galliot has helped a software development company migrate their cloud infrastructure to Kubernetes, renewing their technology stack. Now, they also provide backend development services.

    “Throughout the whole project, Galliot has brought their expertise to our software development processes.”

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  • 11
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    Midsize website development company Cheetah Agency, is based in Dallas, Texas; Doylestown, Pennsylvania; Atlanta, Georgia and Austin, Texas. Established in 2006, the team specializes in web development, search engine optimization, marketing strategy, social media marketing, and more.

    Industries

    Notable Project

    Cheetah Agency has helped an organic bath and body products company craft their identity and online presence from scratch. Their work has included naming, branding, packaging design, and e-commerce development.

    "The commitment to quality was palpable, not only in the final deliverables but also in the processes they followed."

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  • 12
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • San Francisco, CA

    Techlexity is a small custom software development firm. Located in L'viv, Ukraine and Los Angeles, Glendale, California, the agency was founded in 2019. Their services include custom software development, web development, mobile app development, blockchain, and more.

    Industries

    Notable Project

    Techlexity created an Android and iOS mobile app for a mobile detailing startup using React Native. The team integrated backend profile-building tools into the app and provided hosting and maintenance.

    "They exhibited outstanding collaboration throughout the project."

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  • 13
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • San Francisco, CA

    Launched in 2020, Apex Lab is a software development company. Their small team is based in Tallinn, Estonia and San Francisco, California. Their team offers custom software development, mobile app development, web development, and enterprise app modernization.

    Notable Project

    Recart developed a messaging bot that allowed e-commerce brands to convert customers to subscribers through email marketing. The team used React, Node.js, microservices, and Kubernetes to create the platform.

    "Thanks to them, everyone was motivated and driven by the product’s success."

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  • 14
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • San Francisco, CA

    VinnCorp is an application development firm based in Elk Grove, California; Hayward, California and San Francisco, California. Founded in 2019, the small team specializes in mobile app development, custom software development, branding, IT staff augmentation, and more.

    Industries

    Notable Project

    VinnCorp (formerly Scrumteams) has provided staff augmentation services for a digital advertising and media company. They've developed profile reviews, interviews, and screenings and assisted with implementing the designs.

    "The team's growth-driven design approach is a remarkable feature in the workflow."

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  • 15
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Orinda, CA

    Based out of Orinda, CA with satellite offices in India and Croatia, Daxima is a software development company. The team of more than 50 employees has been in business since 2003. They provide web, software, and mobile app development for clients around the world.

    Clients

    • T-Mobile US
    • Cisco Systems
    • Savi Technology
    • Berry Appleman & Leiden

    Industries

    Notable Project

    Daxima helped develop and implement a more robust client management system, capable of data aggregation, external program integrations, widespread use, and business growth.

    "If the team didn’t have an answer, they’d get back to us, and do it quickly. We were never left hanging."

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  • 16
    • $5,000+
    • 10 - 49 employees
    • San Mateo, CA

    Located in San Mateo, California and Beograd, Serbia, Action Engine is a software development firm. They offer custom software development, web development, ux/ui design, mobile app development, and more and were launched in 2017.

    Clients

    • ESRI
    • Foursquare

    Notable Project

    Action Engine has worked on the development of a cloud-based app for an automated retail company. The team has created screens for the app and has moved on to developing the product using the Heroku platform. 

    “I’m extremely pleased with my experience working with them — it’s been a pleasure.”

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  • 17
    • $50,000+
    • 10 - 49 employees
    • San Francisco, CA

    Blackstone Studio is a custom software development firm. Their small team is located in San Francisco, California and Guadalajara, Mexico and focuses on custom software development. The firm was launched in 2019.

    Clients

    • Ferrari
    • Indivio
    • Occam Technologies
    • Caliente

    Industries

    Notable Project

    Blackstone Studio developed an MVP that could speed up an ad company's billing and invoicing processes in an AWS-based environment. The key deliverables included a codebase, diagrams, and project documentation. 

    "Their work quality was excellent; it exceeded our expectations."

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  • 18
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    ThirstySprout is an outsourced development company headquartered in Seattle with an additional office in San Franciso. Founded in 2017, they currently have about 18 employees. They provide IT staff augmentation as well as custom software and web development services to primarily midmarket agencies in IT, e-commerce, and business services.

    Clients

    • Rover.com
    • Jirav.com
    • Zillow
    • WeWork Labs

    Industries

    Notable Project

    ThirstySprout developed automation software for a car-sharing company. The team built a data mart and a financial reporting system to analyze the company's data.

    "They go above and beyond to provide great customer service and project delivery."

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  • 19
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 10 - 49 employees
    • San Francisco, CA

    Infuse is a software development company based in San Francisco. The company, founded in 2014, has a team of around 20 that provides custom software development, mobile app development, and UX/UI design services. Infuse serves enterprise and smaller-sized companies in various industries that include financial services, medical, and IT. 

    Clients

    • Ready Responders
    • Card Connect
    • Clover
    • Donors Choose

    Industries

    Notable Project

    Infuse spearheaded the integration of a financial startup's charity checkout app with Shopify, Magento, and a POS platform. They took care of its front- and backend and integrated a roundup functionality.

    "They were very thoughtful and deliberate in their approach."

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  • 20
    • Scheduling

      4.8
    • Quality

      4.5
    • Cost

      4.3
    • NPS

      4.5
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Foster City, CA

    Software development firm MugCo was founded in 2020. The small Pleasanton, California-based team specializes in custom software development, e-commerce development, web development, cloud consulting & SI, and more.

    Notable Project

    MUGCO augmented their internal staff to provide offshore services for a construction logistics platform. They use the client's provided job description to look for qualified contractors. 

    "We admire the level of support to not only find candidates but also support us throughout the engagement."

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  • 21
    • Scheduling

      5.0
    • Quality

      4.5
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • San Francisco, CA

    GoSolve LLC is a San Francisco, California-based software development firm. The midsize agency was founded in 2021. Their team provides custom software development, IT staff augmentation, web development, mobile app development, and more.

    Industries

    Notable Project

    GoSolve LLC has worked on three projects for a food tech company. They’ve developed a responsive e-commerce website, including frontend and backend, APIs, machine learning, and a data warehouse.

     

    “They put a lot of effort into API structuring and building the right architecture, not just writing the code.”

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  • 22
    • $10,000+
    • 10 - 49 employees
    • San Francisco, CA

    Motzheim Development is a San Francisco, California-based mobile app development company. The small company was established in 2023. Their team provides mobile app development, ux/ui design, custom software development, web development, and more.

    Industries

    Notable Project

    A waterless vehicle washing firm hired Motzheim Development to develop the branding of their new business. The team also developed a personalized website, conducted user research, and designed the site's UI/UX.

    "They had a professional approach with a personal touch."

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  • 23
    • $100,000+
    • 50 - 249 employees
    • San Francisco, CA
    Carbon Five is a software development firm. Established in 2000, the midsize company is located in San Francisco, California; Santa Monica, California; Chattanooga, Tennessee and New York, New York. Their services include custom software development, mobile app development, web development, web design, and more.

    Industries

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  • 24
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 10 - 49 employees
    • Redwood City, CA

    Accelerance is a small IT strategy consulting company. The Redwood City, California-based firm was established in 2001. Their services include IT strategy consulting, custom software development, IT staff augmentation, enterprise app modernization, and more.

    Clients

    • Acrowire
    • Find.com
    • MediaPro
    • AdRoll

    Industries

    Notable Project

    Accelerance helped a cloud-based mobile gaming company develop new internal tools for B2B client support. They also did a feasibility studio on React Native apps and cleaned the client's frontend React code.

    "The way the team integrated with our team and with our culture was impressive."

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  • 25
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 10 - 49 employees
    • San Mateo, CA

    Launched in 2020, hatch is a software development company. The company provides custom software development, mobile app development, ux/ui design, IT strategy consulting, and more and has a small team. The company is located in Berlin, Germany; Seefeld, Germany; Zürich, Switzerland and Triesen, Liechtenstein.

    Clients

    • Valora
    • TUM
    • Knowunity
    • GEMA

    Industries

    Notable Project

    Boldheart led the development of a social networking platform's MVP, from gathering user feedback to launching the new product. They also defined the product's initial niche and created a targeted GTM strategy.

    "Their exceptional proficiency in continuous product discovery stood out."

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  • 26
    • Scheduling

      4.0
    • Quality

      4.7
    • Cost

      4.4
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • San Francisco, CA

    Innovecs is a software development company headquartered in New York City with offices in Tel-Aviv, Israel, London, Frankfurt, Germany, Bern, Switzerland, San Francisco, and Kiev, Ukraine. Their team of 360 provides web development, custom software development, mobile app development, application testing, and more.

    Clients

    • SGN
    • Warner Brothers Turbine
    • CallFire
    • Iron Source

    Industries

    Notable Project

    Innovecs offers ongoing React Native development support for posture correction technology.

    "In Israel, it was hard to find React Native developers. In Innovecs, we found great React Native developers."

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  • 27
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    Website development firm Bytex Technologies was launched in 2015. Their midsize team is located in Iași, Romania and San Francisco, California. Their services include web development, application testing, enterprise app modernization, custom software development, and more.

    Industries

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  • 28
    • $25,000+
    • 250 - 999 employees
    • Oakland, CA

    Tringapps, a social media marketing firm, is headquartered in New York, New York. The agency provides social media marketing, mobile & app marketing, search engine optimization, pay per click, and more and has a midsize team.The agency was established in 2008.

    Industries

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  • 29
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA
    Anmel, Inc, a software development firm, was established in 2010. They are located in London, United Kingdom and San Francisco, California and have a midsize team. Their services include custom software development, web development, mobile app development, Artificial Intelligence, and more.

    Industries

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  • 30
    • $100,000+
    • 10 - 49 employees
    • San Francisco, CA
    Span Digital is a software development firm. The small San Francisco, California-based team provides custom software development, BI & big data consulting & SI, ux/ui design, cloud consulting & SI, and more. The agency was launched in 2013.

    Industries

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