Senior Software Engineer Jobs in Missouri

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AS400 Developer with Synon

Innovative IT Solutions Inc

•

Remote

Contract, Third Party

Job Title: AS400 Developer with SynonLocation: RemoteDuration: 6+ MonthsEmployment Type: Contract Job Description:We are seeking an experienced AS400 Developer with strong expertise in Synon (Cool:2E). The ideal candidate will have hands-on experience in developing, maintaining, and supporting applications on the IBM iSeries (AS400) platform. Key Responsibilities: Develop and support applications using AS400 and Synon (Cool:2E) Perform coding, testing, and debugging of existing applications Work
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Posted 11 days ago

Lead AI Platform Engineer

Mastercard

•

O'Fallon, Missouri, USA

Full-time

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest po
Posted 1 day ago | Updated 4 hours ago

Sr ServiceNow Developer

World Wide Technology

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Remote

Contract

World Wide Technology is looking for a ServiceNow Developer. This role is part of WWTs Strategic Resourcing services and is a contract role. The candidate will be supporting a WWT customer and will be employed by one of WWTs preferred partners. The partner will provide full compensation and benefit information prior to employment with the partner. Why WWT? At Worldwide Technology, we work together to make a new world happen. Our important work benefits our clients and partners as much as it does
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Posted 8 days ago | Updated 4 days ago

Sr. Application Developer

HF Management Services LLC

•

Remote

Full-time

The Sr Application Developer primary responsibilities are to guide and develop the design, implementation, testing and delivery of work within the team that cultivates communication and foster best application development practices against customized software. The Development Manager will have a strong knowledge of software development and design and will have experience working to develop business-critical applications. Duties & Responsibilities: Stays current in new IT technologies to maintai
Posted 6 days ago

C++ Engineer

Apetan Consulting

•

Missouri, USA

Full-time, Part-time, Contract, Third Party

C++ Engineer Client: Financial Services Company 3 Openings Location: St Louis, MO Hybrid Work Environment Onsite 3 days a week and GC For this role , please try to find native candidate C++ Engineer Must have Multithreaded C++ experience Must have a financial/trading platform background. Job Summary Seeking a highly motivated senior level software engineer to work closely with other dedicated engineers in our Market Data Engineering group. The engineer will be responsible for the design, i
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Posted 60+ days ago | Updated 14 days ago

Sr. Blockchain Engineer

ConsultNet, LLC

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Remote or South Jordan, Utah, USA

Full-time

Senior BlockChain Developer Remote - USA Long term contract Pay: DOE We are seeking an experienced Blockchain Engineer. The ideal candidate will have experience working with Blockchain and Ethereum, including experience in Go, C# and other OOP languages. As a Blockchain Engineer, you will primarily work on blockchain-related projects, Designing and implement Smart Contracts using Solidity.Additionally you may also be tasked to work on back-end micro services using Go, .Net and SQL as needed.
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Posted 60+ days ago | Updated 3 hours ago

Application Developer

HonorVet Technologies

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Remote

Contract

Job Title: Application Developer Location: Remote Duration: 6+ Months Job Description: Under supervision of a senior developer/manager, provides designs and specifies information systems solutions to solve basic to complex problems or enhancements. Participates in evaluation of client requirements and processes, develops and prepares application environments which may involve standard to diverse development platforms, software, hardware, technologies and tools. Participates in day to day support
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Posted 40 days ago | Updated 10 hours ago

Senior Full Stack Developer

Ahimay Technology Solutions

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Remote

Contract

What You Will Do: The Cloud Applications Full-Stack AWS Developer will work closely with clients, digital leaders, solutions architects, and technical/ functional leads across Guidehouse digital teams and market segments to support client projects and provide solutions for growth efforts and capabilities build-out.Serve as a key member of the cloud team to support technical challenges/demos, building innovative solution prototypes using cloud architectures and software technologies.Solutions arc
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Posted 5 days ago

Integration Engineer Lead (Remote)

Govcio LLC

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US

Full-time

Overview: GovCIO is currently seeking a Integration Engineer Lead to become a subject matter expert on our Team. This position is fully remote, full time and available to candidates within the Continental United States (CONUS). Please note: The contract has not been awarded; this position remains unfunded and is contingent upon the award of the contract. Responsibilities: Builds and codes application integrations utilizing REST/SOAP API, BGS Webservices etc., without the use of a GUI. Involv
Posted 4 days ago | Updated 11 hours ago

Remote Zoho Engineer

Get Your Project Ready Private Limited

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Remote

Contract

Role: Remote Zoho Engineer Duration: 6+MonthsMOI: Skype The CRM Lead Engineer plays a pivotal role in the design, development, implementation, and maintenance of CRM ERP solutions. Your mission is to support key strategic and operational initiatives by ensuring that end-user needs for CRM solutions are met. Collaborating closely with technical teams and business stakeholders, the CRM Lead navigates the intricate landscape of technology and business acumen. Their critical combination of technical
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Posted 11 days ago

Ruby on Rails Developer

TekVivid

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Remote

Contract, Third Party

Overview: We are looking for a highly motivated and experienced Ruby on Rails Developer to join our development team. You will be responsible for building and maintaining robust, scalable web applications. The ideal candidate has strong backend development skills and a passion for clean, maintainable code. Responsibilities: Design, build, and maintain efficient, reusable, and reliable Ruby code using the Ruby on Rails framework.Develop new features and improve existing ones.Collaborate with prod
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Posted 13 days ago

Senior React Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

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Remote

Contract, Third Party

Position Senior React Developer (10+ Years Experience)Location RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly skilled Senior React Developer with over 10 years of experience in frontend development. The ideal candidate will have deep expertise in JavaScript, React.js, TypeScript, and modern UI/UX principles. You ll be responsible for leading frontend architecture, mentoring developers, collaborating with cross-functional teams, and delivering high-performance, scal
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Posted 60+ days ago | Updated 26 days ago

Senior Golang Developer

Pyramid Consulting, Inc.

•

Remote

Contract

Immediate need for a talented Senior Golang Developer. This is a 06+ Months Contract opportunity with long-term potential and is located in U.S(Remote). Please review the job description below and contact me ASAP if you are interested. Job ID: 25-78272 Pay Range: $60 - 65/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location). Key Requirements and Technology Experience: Key skills; Go L
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Posted 12 days ago

Senior ASIC Front End Infrastructure Engineer

NVIDIA Corporation

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Remote or Santa Clara, California, USA

Full-time

NVIDIA is seeking elite ASIC RTL/Verification ASIC engineers to develop the core Verification and RTL infrastructure of the world's leading GPUs. This position offers the opportunity to have a real impact in a dynamic, technology-focused company impacting product lines ranging from consumer graphics to artificial intelligence to self-driving cars and supercomputers. Our team of dedicated Infrastructure engineers continuously upgrades the NVIDIA Hardware design environment. We focus relentlessly
Posted 60+ days ago | Updated 4 hours ago

Senior SAP Fiori Developer

Artifact Global Corporation

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North Carolina, USA

Contract

Position: Senior SAP Fiori Developer Location: Charlotte, NC Remote Duration: 12+ months Visa: or citizens What You'll Need to Have: 7+ years of SAP development experience across SAP ECC, S/4 HANA, and SAP Fiori environments. 4+ years of development experience with SAP UI5 (HTML5, CSS, JavaScript). 4+ years of SAP UI application experience (Enterprise Portal, Fiori, WDA, etc.). Hands-on experience customizing SAP standard Fiori apps and developing freestyle apps from scratch. Strong commu
Posted 35 days ago | Updated 17 hours ago

W2 - (2) - .NET Web Developer III (Lead, MudBlazor, ASP.NET v6-8, Github, Azure SQL) - Remote/Local

Tanson Corp

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Remote or Madison, Wisconsin, USA

Contract

Description: The client is looking for two (2) .NET Web Developer s Will close to submissions on 8/6/2025 at 4:00PM CST. Top Required Skills & Years of Experience: 1. Experience as a lead developer in a large application development project, preferably involving modernization of technology, as well as working with a cross-functional team to redesign and simplify UX and workflows to meet modern application design standards, using a material design library and component framework, such as MudBla
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Posted 6 days ago | Updated 8 hours ago

.NET Web Developer - Remote

VIVA USA INC

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Remote

Contract

Title: .NET Web Developer - Remote Mandatory skills: JavaScript, JQuery, .NET MVC, C#, .NET CORE, ASP.NET, Full stack development, Entity Framework, SQL Server database, n-tier architecture, SQL Server, Crystal Reports, MS Access-based applications, requirements analysis, design analysis, post production support, technical documentation, technical requirements, technical design, web based applications, .NET application, web application design patterns, Full stack, application development, .NET
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Posted 6 days ago

Ops Tech - Banking Ops - Applications Development Sr Programmer Analyst

Citi

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Remote or Irving, Texas, USA

Full-time

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. Responsibilities: Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications de
Posted 17 days ago | Updated 4 hours ago

Senior Python Developer / AWS / Fully-remote

Motion Recruitment Partners, LLC

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Remote or Los Angeles, California, USA

Full-time

Job Description This is a fully remote, long-term contract opportunity with a major global enterprise operating in the entertainment and media space. The company is known for its innovative tech stack, strong developer culture, and commitment to employee well-being. They're currently seeking a Senior Python Backend Engineer to join their high-impact platform team working on scalable backend systems, APIs, and serverless cloud infrastructure. This is a rare opportunity to work behind-the-scenes
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Posted 49 days ago | Updated 12 hours ago

Senior Node.js Developer

Cynet Systems

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Missouri, USA

Contract

Job Description: Lead the development and implementation of high-quality software solutions using Node.js primarily with decent experience in React Js, PostgreSQL, and AWS. Oversee the entire software development lifecycle, from requirements gathering to deployment and maintenance. Provide technical guidance and mentorship to junior developers, ensuring best practices are followed. Collaborate with cross-functional teams to design, develop, and deliver scalable and reliable applications. Ensure
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Posted 5 hours ago