All Software Engineering Consultants in Seattle
Plavno
5(16 reviews)AI-First Software Company: Secure Agents, Voice Assistants, and Scalable Cloud.
Top awardedPlavno is a premier software development house with over 20 years of experience and a highly qualified team of experts in your industry. Fully-fledged teams of specialists cover each stage of product creation , from product management and analysis to design, development, testing, and ongoing support. We have a unique advantage , our pre-formed full teams work exclusively on products in their specific domains, such as Healthcare, E-Learning, FinTech, Travel & Hospitality, Fleet management and more. We can help you with: ✔ Web Development ✔ Mobile App Development ✔ CRM/CMS/SaaS Development ✔ Chat and Chatbot Development ✔ Web3 / DeFi / DAO / Smart contract ✔ WebRTC Stop struggling with bloated budgets and slow time-to-market. At Plavno, our fully-fledged team provides cost-effective and streamlined solutions that minimize technical debt and maximize your product's potential. With end-to-end support and a proven track record in the SAFe Scaled Agile Framework, we're the partner you need to succeed. LET’S CONNECT Let us help you choose the best path forward to deliver the perfect solution: Admin@plavno.ioLooking for work in Software EngineeringLocated in Alexandria, United States (+2)From €10,000 for Software EngineeringWorked in Banking & Financials (+19)Speaks English, French(+2)51-200 membersDebut Infotech
5(9 reviews)Results, Not Promises
Highly recommendedDebut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service areas: Artificial intelligence and generative AI — Enterprise LLM integration, AI agent development, retrieval-augmented generation (RAG) pipelines, predictive analytics, computer vision, and intelligent process automation embedded at the system architecture level. Blockchain and Web3 development — Smart contract engineering, DeFi protocol development, real world asset (RWA) tokenization, cryptocurrency exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda. Mobile application development — Native iOS, Android, and cross-platform applications (React Native, Flutter) architected for AI integration, enterprise-grade security, and sustained performance under production load. Web and software development — Full-stack web platforms, SaaS products, and enterprise software systems engineered API-first, designed for long-term maintainability and organizational scale Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and TĒM 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplinesLooking for work in Software EngineeringLocated in Cook County, United States (+2)From €10,000 for Software EngineeringWorked in Others (+11)Speaks English51-200 membersChudovo OÜ
5(21 reviews)Complex Systems Implementation
Highly recommendedTop awardedChudovo is a custom software development company, focused on complex systems implementation. Customers rely on our expertise, appreciate transparency in time, budget, visibility of work progress, and our assistance in achieving their business objectives with high-quality solutions. Our teams follow best development practices and methodologies and apply their experience in such industries as healthcare, finance, e-commerce, logistics, telecommunications, and others. In our portfolio, we have over 190 successfully implemented web, mobile, desktop, cloud, embedded, and AI projects. With our commitment to innovation, we bring together cutting-edge technologies, visionary strategies, and creative minds to breathe life into your visions and ideas.14 works in Software EngineeringLocated in New York, United States (+4)From €3,000 for Software EngineeringWorked in Hospitals & Healthcare (+19)Speaks English, German(+2)51-200 membersTinyOps Studio LLC
(0 review)AI automation, software, and data systems that ship.
Fast, practical systems for teams that need results without a long consulting cycle. TinyOps Studio LLC designs and ships AI automations, custom software, API integrations, operational dashboards, and reliable website improvements. We start with the workflow and business outcome, build a working implementation in short milestones, test it against real use cases, and document the handoff. Clients get a clear scope, direct technical ownership, and production-ready deliverables. Engagements can begin with a focused audit or fixed-scope build, then expand only when the value is proven.Looking for work in Software EngineeringLocated in Sheridan, United StatesFrom €1,000 for Software EngineeringWorked in Software & Computer ServicesSpeaks English1-10 membersM TECHUB LLC
5(10 reviews)AI, Mobile App & Software Development Company
Highly recommendedTop awardedM TECHUB LLC is a US-based AI development, mobile app development, custom software development, and IT staff augmentation company. We help startups, SaaS companies, and enterprises build scalable digital products, automate business processes, and extend their engineering teams. Our AI development services include AI agents, AI chatbots, generative AI applications, RAG systems, voice assistants, workflow automation, and OpenAI API integrations. Our engineers work with Python, FastAPI, LangChain, LlamaIndex, vector databases, and leading large language models. We design and develop mobile applications for iOS and Android using React Native, Flutter, Swift, Kotlin, Firebase, and cloud technologies. Our mobile development experience covers fintech, healthcare, real estate, logistics, eCommerce, education, fitness, social networking, and SaaS platforms. Our custom software development team builds SaaS applications, enterprise software, web platforms, marketplaces, dashboards, APIs, CRM systems, and cloud-based business solutions using React.js, Next.js, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, and Google Cloud. Through our IT staff augmentation services, companies can hire dedicated AI engineers, mobile developers, full-stack developers, DevOps engineers, QA specialists, UI/UX designers, and project managers. We offer flexible full-time, part-time, and dedicated-team engagement models. M TECHUB LLC provides complete product delivery, including strategy, UI/UX design, software architecture, development, testing, deployment, maintenance, and technical support. Our teams serve clients in the United States, United Kingdom, Canada, Europe, the Middle East, and other global markets.Looking for work in Software EngineeringLocated in Loudoun County, United States (+2)From €3,000 for Software EngineeringWorked in Banking & Financials (+7)Speaks English, Arabic(+3)51-200 membersZazz
5(1 review)Modern IT. Built Secure. Delivered Right.
Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We specialize in solving complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation - so our clients can move faster, scale smarter, and innovate with confidence.Looking for work in Software EngineeringLocated in Seattle, United StatesFrom €1,000 for Software EngineeringWorked in AutomotiveSpeaks English201-500 membersNTSprint
(0 review)Maximize Ideas!
NTSprint is an IT company founded in the State of Washington, United States, in 2016. It is designed to be a digital transformation partner for small and medium-sized businesses (SMBs) and growing companies. Over the years, NTSprint has maintained a loyal customer base through its winning formula of excellent IT service at a fair cost. We are proud to incorporate best practices and standards to align our results with the rest of the sector and deliver value from the beginning of each partnership.Looking for work in Software EngineeringLocated in Seattle, United StatesFrom €1,000 for Software EngineeringWorked in Entertainment & Events (+1)Speaks English, Spanish51-200 membersRexsoft Inc
5(10 reviews)Your Growth Focused Web and Mobile Development Partner
Rexsoft is a custom software development company focused on building scalable digital products for startups and established businesses. For over 14 years, we have been helping companies turn ideas into structured, working systems - from MVPs to full-scale platforms. Our core expertise includes SaaS platforms, marketplaces, internal business systems (CRM/ERP), mobile applications, and AI-powered solutions. We specialize in projects where the complexity lies not only in the interface, but in the underlying logic, data consistency, and long-term scalability. We approach development as a business process, not just coding. That means we focus on: clear system architecture from the start structured data models and workflows scalability and maintainability aligning product decisions with business goals Our team includes experienced developers, project managers, and product specialists who work together to ensure that every solution is technically sound and commercially viable. We typically work in a structured process: intro call --> scope alignment --> detailed estimation --> phased development This allows our clients to fully understand the product before committing to development and reduces risk at every stage. Rexsoft is best suited for: startups building MVPs with long-term vision companies replacing or upgrading internal systems businesses looking to build scalable digital platforms We do not offer generic or template solutions - every product is built from scratch based on the specific business needs. Our goal is simple: build systems that actually work in real life, scale with the business, and create long-term value.Looking for work in Software EngineeringLocated in New York, United StatesFrom €5,000 for Software EngineeringWorked in Transportation (+12)Speaks English, Ukrainian51-200 membersDesignli
5(16 reviews)Build software people actually pay for.
Top awardedDesignli helps non-technical founders turn software into real, revenue-generating businesses. Most agencies hand over code and walk away, leaving you to build the business yourself . We work differently, measuring our success by your traction - real users on a live product and real signs that the business is growing. Every engagement is built around a guaranteed outcome : For founders starting from scratch , our TractionLab program puts a real user on a working MVP within 30 days, or your next month is free. From there, the whole team works to turn that first user into many, and early usage into real revenue. For founders who already have something live , we start with a free one-week Impact Week that pinpoints exactly what's holding your product back. You walk away with a customized plan and a guaranteed Day-30 outcome that clears those roadblocks, so you can get back to chasing traction and your vision instead of fighting your product. The burden is on us to prove we're the right partner. Picking a software development agency is one of the most important decisions you'll make as a founder, and we don't think that risk should fall entirely on you. That's why your first 14 days are fully refundable, and you can cancel any time with 30 days' notice. We work using Hypothesis-Driven Development . Building software is cheaper than ever with AI-empowered engineers; the hard part is knowing what to build and whether it worked. So every change we make carries a business metric and a clear bet about what it should move, and we measure whether it actually did. The result is a real feedback loop on whether your product is getting better each week and driving more usage and revenue. Each engagement is staffed with a small, senior pod that gives your product full-time focus and founder-level care , and is paid on outcomes, not promises.1 work in Software EngineeringLocated in Greenville, United States (+2)From €5,000 for Software EngineeringWorked in Banking & Financials (+9)Speaks English51-200 membersFuzionDev LLC
5(10 reviews)Custom AI, Web & Mobile Software Built to Scale
Highly recommendedFuzionDev LLC is a custom software development company helping startups, growing businesses, and established organizations transform ideas into secure, scalable, and high-performing digital products. We specialize in artificial intelligence solutions, web and mobile application development, SaaS platforms, workflow automation, API integrations, cloud infrastructure, and UI/UX design. Our team supports the complete product lifecycle—from discovery, strategy, and architecture to development, testing, deployment, optimization, and ongoing maintenance. We build AI agents, chatbots, RAG systems, marketplaces, booking platforms, CRM and ERP solutions, customer portals, dashboards, e-commerce systems, and other custom business applications. Our core technologies include Next.js, Node.js, TypeScript, Python, React Native, PostgreSQL, AWS, Docker, OpenAI, Claude, and Gemini. Clients choose FuzionDev LLC for clear communication, transparent delivery, practical technical guidance, and dependable long-term support. Whether you are validating an MVP, modernizing an existing platform, automating business processes, or launching an AI-powered product, we turn your goals into reliable software designed to deliver measurable value and support future growth.Looking for work in Software EngineeringLocated in Sheridan, United StatesFrom €1,000 for Software EngineeringWorked in E-commerce (+9)Speaks English11-50 membersAXIS Consulting
5(5 reviews)We help companies streamline the process with automation by unlocking the power of technology
Axis Consulting is your USA-based partner for CRM consulting, sales automation, and workflow optimization. We help growth-stage businesses streamline operations and boost revenue with tools like Pipedrive, Salesforce, HubSpot, Zapier, PandaDoc, AirCall, Shopify, and Zendesk. Our services include CRM setup, workflow automation, tool integrations, and process optimization designed for business owners, sales and operations teams, SaaS companies, and digital agencies. From improving customer experience to accelerating deal flow, Axis Consulting delivers practical solutions that help U.S. companies automate smarter, scale faster, and grow with confidence.Looking for work in Software EngineeringLocated in Aventura, United StatesFrom €1,000 for Software EngineeringWorked in Banking & Financials (+2)Speaks English11-50 membersBeeWeb
4.9(8 reviews)Custom software, AI-powered applications, MVPs, and SaaS — built with 11+ years of expertise.
BeeWeb is your trusted software development company and technology partner. With over 11+ years of experience and a global presence across the US, Europe, and the Middle East, we combine product strategy, engineering excellence, and AI-driven innovation to accelerate product delivery and digital transformation for startups and enterprises alike. Our primary goal is to help you transform your innovative idea into a successful digital product. We don’t hesitate to go the extra mile to build effective solutions to the problems your product is intended to solve. We work with a result-oriented approach, transparency and commitment. We focus on advanced technologies and high-quality , and this is proven by our long-lasting client relationships and recurrent collaborations. On our YouTube channel, you can watch video reviews from our clients. https://www.youtube.com/watch?v=QKypR-Iuavk We suggest full-cycle services that cover every aspect of software engineering: Agentic AI Development AI Integration AI Automation MVP development Modernization of MVPs built with AI builders (Lovable, Bolt, Wix) Custom software development Enterprise web app development Mobile app development / Hybrid E-commerce website development Cloud Solutions DevOps services Main industries we cover: Healthcare FinTech Entertainment Market Research Legal Real Estate Key Statistics 11+ years of market presence 100+ projects completed 98% client retention rate 15+ countries involved 30+ awards won From AI-powered tools to custom software development, BeeWeb is shaping the future of digital innovation. Whether you’re reimagining your existing platform or launching something entirely new, we’re here to make it happen - smarter, faster, and better. Ready for a reliable engineering partner? Book a call with our CTO now! https://calendly.com/karenhov/30min Contact us at info@beewebsystems.com.Looking for work in Software EngineeringLocated in Yerevan, ArmeniaFrom €3,000 for Software EngineeringWorked in Software & Computer Services (+14)Speaks English, Russian11-50 membersLionwood.software
5(8 reviews)Find the Perfect Solution
Lionwood.software specializes in crafting custom software solutions tailored to meet the unique needs of businesses across various industries. Our expertise spans software development, application creation, IT solutions, and consultancy services. We have extensive experience building WMS, ERP, TMS, and CRM platforms. Many projects focus on transforming legacy software into cloud-ready architectures that improve performance, usability, and maintainability. Our services include: - Software Product Development Services; - Product Design Services; - MVP Development Services; - Web App Development Services; - Mobile App Development Services; - AI Software Development Services.Looking for work in Software EngineeringLocated in New Castle County, United StatesFrom €5,000 for Software EngineeringWorked in Marketing & Advertising (+10)Speaks English, Ukrainian51-200 membersELEKS
5(1 review)Your trusted partner for guaranteed software delivery
Top awardedELEKS is your trusted partner for guaranteed software delivery. Combining over 30 years of industry insight with cutting-edge AI technology, we help businesses worldwide deliver their unique software vision through bespoke full-cycle solutions.1 work in Software EngineeringLocated in Las Vegas, United States (+14)From €20,000 for Software EngineeringWorked in Energy & Oil (+10)Speaks English, German(+1)1001-5000 membersSociiLabs LLC
5(1 review)Solving big problems with even bigger brains (and AI).
At Sociilabs, we harness the power of artificial intelligence to deliver innovative solutions tailored to address the challenges of today's dynamic business landscape. Our commitment is to empower organizations with cutting-edge technologies that drive efficiency, enhance decision-making, and foster growth. With a blend of AI expertise and industry insights, we collaborate closely with our clients to design and implement solutions that not only meet their immediate needs but also pave the way for future opportunities. Whether it's optimizing operations, improving customer engagement, or unlocking new revenue streams, Sociilabs is your trusted partner for transformative AI solutions. Join us on our journey to redefine what's possible with AI and make a lasting impact on businesses and communities worldwide. Connect with us to explore how we can help your organization thrive in the age of AI.Looking for work in Software EngineeringLocated in Sheridan, United StatesFrom €1,000 for Software EngineeringWorked in Marketing & Advertising (+1)Speaks English, Turkish(+1)1-10 membersLatam Engineering
(0 review)Turning ideas into software
Latam Engineering is a nearshore software development company connecting top Latin American engineering talent with businesses in the US and Canada. With over 8 years of experience delivering custom software solutions, we bring together developers from leading universities across 20+ Latin American countries, all working within your time zone for seamless collaboration. We specialize in end-to-end software development, UI/UX design, and digital transformation advisory, leveraging technologies such as .NET C#, React, Angular, Java, Python, PHP, TypeScript, and cloud platforms like Azure and AWS. What sets us apart: 100% asset ownership, all code, designs, and infrastructure belong to you Nearshore advantage, aligned time zones with US and Canadian clients for real-time communication Vetted talent, developers recruited from prestigious Latin American universities Scalable & secure, solutions built for growth with guaranteed data and system integrity Customer-centric, we adapt to your goals, not the other way around Beyond technology, we are driven by a social mission: creating economic opportunities for Latin American engineers and contributing to sustainable regional growth. When you work with us, you get world-class engineering with real human impact behind it.Looking for work in Software EngineeringLocated in Bothell, United StatesFrom €1,000 for Software EngineeringWorked in Industrial Goods & Services (+2)Speaks English, Spanish1-10 membersCeladonsoft
5(7 reviews)Scalable systems for complex business operations — delivered with clarity and predictability.
We help growing and established companies turn complex software initiatives into clear, scalable, and well‑managed systems. Our job is more than just software design and development — our job is taking care of your success. We don't jump straight into development. We start with discovery, solution design, and business analysis to define scope, architecture, integrations, and priorities before a single line of code is written. This is how we reduce delivery risk and protect your budget. We focus on three solution domains: 1. Custom Business Systems & Operational Platforms 2. Mobile Products for Customers and Operations 3. AI‑Enabled Business Workflows (AI under senior engineering control) Our strongest industry experience is in Food & Beverage, Real Estate, and FinTech — with growing expertise in iGaming, EdTech, and Travel Tech. Why companies choose us: clarity before development, structured delivery with PM and QA, domain‑aware solutions, and AI‑accelerated senior engineering. We work best with growing mid‑market companies, multi‑location businesses, and organisations that have outgrown spreadsheets or disconnected tools. We work as an extension of your business, in tight communication and total transparency — so there's no waste of time on back‑and‑forth. Start with a Solution Discovery call – to clarify scope, architecture, and the right path before any build commitment.Looking for work in Software EngineeringLocated in Tuckahoe, United States (+3)From €10,000 for Software EngineeringWorked in Food (+23)Speaks English, German(+2)51-200 membersVareweb
4.9(5 reviews)Web Design, Digital Marketing & Automation That Drives Growth
RecommendedVareweb is a Dallas-based web design, digital marketing and GoHighLevel automation agency helping businesses attract more leads, improve conversions and simplify follow-up. We design conversion-focused business websites, landing pages and eCommerce stores built for strong user experience, mobile performance and search visibility. Our digital marketing services include SEO, local SEO, Generative Engine Optimization (GEO), Answer Engine Optimization (AEO), content marketing, paid advertising, social media management and conversion tracking. We also build GoHighLevel CRM and automation systems for lead capture, pipeline management, appointment booking, email and SMS follow-up, missed-call responses, nurturing campaigns and review requests. By connecting websites, marketing and automation under one team, Vareweb helps businesses move from online visibility to qualified leads and consistent customer follow-up without relying on multiple disconnected providers.Looking for work in Software EngineeringLocated in Dallas, United StatesFrom €500 for Software EngineeringWorked in Hospitals & Healthcare (+7)Speaks English51-200 membersAkveo
5(1 review)Here to Build
Akveo is an international software development firm that creates innovative digital solutions to help businesses grow. Specializing in custom software, low-code/no-code platforms, and UI/UX design, we empower companies of all sizes to turn their concepts into scalable, high-performing applications. As a certified Retool development partner and React Native expert (https://www.akveo.com/services/mobile-application-development/react-native), Akveo has successfully completed 500+ projects across sectors like finance, healthcare, eCommerce, and EdTech. Our team of experienced software engineers, designers, and business analysts works collaboratively to deliver top-quality solutions. From cross-platform mobile development to MVP creation and AI-driven automation, we are dedicated to providing exceptional results that surpass client expectations.Looking for work in Software EngineeringLocated in Warsaw, PolandFrom €1,000 for Software EngineeringWorked in Insurance (+6)Speaks English, German(+2)51-200 membersApptech Systems
5(6 reviews)Your Enterprise’s Next Chapter Starts Here!
Top awardedFounded in 2017, Apptech has emerged as a reliable ally for organizations on their journey towards digital transformation. We specialize in crafting a suite of digital solutions that strategically leverage the transformative power of technology. Our core expertise encompasses bespoke software, innovative web and mobile applications, and robust enterprise solutions that guide our clients toward a prosperous digital future. We are proud partners with industry giants Microsoft and Amazon, utilizing their cutting-edge technologies to deliver exceptional results. Moreover, our operations extend from our headquarters in Türkiye to the United States and Saudi Arabia. Each office is equipped to serve regional clients with tailored expertise, making us a global player in the digital solutions arena. End-to-End Software Development Web & Mobile App Development AI & Machine Learning SaaS Development PoC/MVP Development App Modernization IT Consulting Quality Assurance Services Our mission is to help enterprises accelerate the adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation. Whether it is a consumer-oriented app or a transformative enterprise-class solution, the company leads the process from ideation and concept to delivery and provides ongoing support through its quality framework.Looking for work in Software EngineeringLocated in Lodi, United States (+3)From €5,000 for Software EngineeringWorked in Household Products (+12)Speaks English, Arabic11-50 members