Optum Sr Software Engineer Salary Jobs in Usa

Company: KeyPleaz

Location: Remote (U.S. preferred)

Reports to: CTO

KeyPleaz is a property access and coordination platform that helps manage entry, scheduling, and logistics across real-world locations. We work with property managers, service providers, and partners to replace manual, fragmented processes with secure, reliable software. Think about it as Uber for Real Estate Agents.

Our platform operates where digital systems meet physical access, which means quality, reliability, and thoughtful engineering matter.

We are seeking a Senior Software Engineer to help build, scale, and maintain the KeyPleaz platform. KeyPleaz began in 2019 and is in production today. This is a hands-on role for an experienced engineer who can own features end-to-end, contribute across the stack, and help guide technical decisions as the platform grows.

We hire for ownership and execution. Technical competence is table stakes. What differentiates top performers on our team is personal ownership, disciplined execution, and proactive problem solving. We look for engineers who treat the product like their own business—who communicate clearly, move fast with accountability, and finish what they start.

You will work closely with product, operations, and leadership to deliver stable, scalable solutions used daily by customers and partners.

●     Design, build, and maintain core platform features

●     Develop and support backend services using .NET

●     Contribute to web and mobile applications built with React

●     Build and consume APIs and integrate third-party services

●     Work with relational databases and ensure data integrity

●     Improve reliability, performance, and security across systems

●     Participate in code reviews, technical planning, and architecture discussions

●     Mentor and support other engineers as the team grows

●     Evaluate and apply AI tools (i.e. agentics, vibe coding - code generation, testing, monitoring, analytics) to improve development velocity, system reliability, and engineering effectiveness

Qualifications

●     7+ years of professional software engineering experience

●     Strong experience with .NET / ASP.NET backend development

●     Working knowledge of React or modern JavaScript frameworks

●     Experience designing and consuming APIs

●     Solid understanding of relational databases

●     Experience working in cloud environments

●     Familiarity with AI-enabled development tools and emerging AI services, with the ability to assess practical use cases and integrate them responsibly into production workflows

●     High ownership, sound judgment, and clear communication

●     Experience with mobile applications

●     Payments or third-party integrations

●     Startup or small-team experience

●     Comfort working in evolving, ambiguous environments

●     Ownership of meaningful, real-world systems

●     Small team with direct access to leadership

●     Focus on building reliable software, not just shipping features

●     Opportunity to grow into senior technical leadership roles

Job Title: Senior Software Engineer, Backend - Factory Software

Location: Buffalo, NY

Position Overview

We are seeking a highly motivated Senior Software Engineer with expertise in server-side and backend development to join our small, high-performing team. You'll build scalable software systems that power the manufacturing of innovative products like vehicles, superchargers, and energy storage solutions. The ideal candidate is passionate about crafting world-class software, has a proven track record in scalable manufacturing systems, and thrives in collaborative environments. Strong software engineering fundamentals, familiarity with manufacturing and controls engineering, excellent communication skills, and experience with technical feedback are essential.

Key Responsibilities

• Deliver high-quality, maintainable code that addresses real-world manufacturing challenges.
• Lead end-to-end projects, from gathering requirements and architectural design through implementation, testing, and production deployment.
• Bridge communication gaps between factory floor equipment (e.g., PLCs) and high-level MES (Manufacturing Execution System) services.
• Mentor engineers and uphold global standards of excellence in software craftsmanship.
• Tackle problems across the stack, from debugging packet loss in PLC communications to ensuring data consistency in large-scale, globally distributed databases.
• Prioritize robust, production-critical systems with strong validation, monitoring, and support mechanisms.
• Collaborate with cross-functional teams, including Operations, Manufacturing Engineering, Quality, and Supply Chain.
• Participate in on-call rotations (no more than once every two months).

Requirements

• Bachelor’s degree in computer science, Computer Engineering, Electrical Engineering, or equivalent experience with evidence of exceptional ability.
• Minimum 4 years of professional experience (6+ years preferred).
• Proven experience implementing large-scale projects in languages like Go, Java, C++, Rust, or similar.
• Strong understanding of backend development fundamentals, including SQL databases, networking, and security.
• Basic familiarity with frontend technologies (HTML, JavaScript, CSS) and at least one modern framework (e.g., React, Angular, Svelte) for full-stack integration.
• Proficiency in rigorous software development practices, including version control, code reviews, CI/CD pipelines, monitoring, and logging.
• Excellent interpersonal communication skills and a demonstrated ability to lead technical initiatives from concept to production.
• Familiarity with controls engineering concepts, manufacturing processes, and Programmable Logic Controllers (PLCs). Hands-on experience with Ignition and MES systems is a plus..

About You:

We are seeking a Senior Software Engineer with strong experience in DO-178C flight software development and avionics integration. In this role, you will design and implement safety-critical autonomous flight software, integrate it with avionics hardware platforms, and contribute to certification-ready development processes.

Responsibilities:

• Develop, integrate, and verify flight-critical software using C/C++ following DO-178C processes.
• Build application-level flight software and ensure robust integration with underlying avionics hardware interfaces
• Create, maintain and review software requirements, code and certification artifacts adhering to certification plans and standards
• Troubleshoot integration issues on test benches and aircraft
• Develop automated workflows for software integration and build processes.
• Collaborate with engineers from cross functional groups such as systems, safety, hardware, flight controls and test to ensure product and program level needs are met.
• Contribute to planning and execution of SOI audits and certification reviews.
• Create and maintain comprehensive documentation for software requirements, architecture, build processes and design decisions
• Support hardware-in-the-loop (HIL), processor-in-the-loop (PIL), and flight testing activities.

Qualifications:

• Bachelor’s or Master’s in Computer Science, Electrical Engineering, Aerospace, or related field.
• 3-5 years of embedded or flight software development experience within a DO-178C environment.
• Strong proficiency in C/C++ for embedded, real-time, safety-critical systems.
• Understanding of avionics protocols and architectures (ARINC 429, ARINC 653, CAN, MIL-STD-1553, Ethernet).
• Experience designing and implementing software for real-time operating systems (RTOS), with strong knowledge of low level topics such as device driver development, interrupt handling, memory management, and performance estimation.
• Strong experience with requirements management, including authoring high-quality software requirements, maintaining traceability, and using tools such as DOORS, Jama, or Polarion.
• Experience with hardware/software integration, debugging on target hardware, and use of analysis tools (logic analyzers, bus analyzers).
• Experience with Python scripting, tool automation and test automation
• Experience with CI/CD environments and automated code quality checks.

Nice To Have

• Background integrating software across diverse avionics platforms or multicore systems.
• Familiarity with flight controls, autonomy, GNC, or aircraft certification efforts.
• Exposure to MathWorks tools and Model-Based Development workflows (DO-331).
• Prior involvement in SOI audits or FAA/EASA certification programs.

Job Overview

Reporting to the Manager of Platform, the Senior Software Engineer will be responsible for designing, maintaining, documenting, and testing computer software in an agile SCRUM development environment. In this position the engineer is also responsible for mentoring junior Software Engineers and advocating projects and company practices.

Responsibilities

• Exercise of discretion and independent judgment with respect to matters of significance.
• Join an agile scrum team to develop and maintain platforms used for gaming industry
• Contribute toward implementation in software architecture/design, development, validation, and documentation to deliver high quality, functionally excellent products
• Design, code, test, and integration with enabling technologies to build a robust platform.
• Debug/troubleshoot and fix reported issues with platform dependent software. Identify root cause, diagnose, debug, and deliver robust fixes in timely manner
• Continuous learning and development of skills to help create a better gaming eco-system
• Interact with team members to evaluate requirements and determine effective design approaches
• Partner with peer development scrum teams to ensure excellent cross-component integration
• Work with SQA to verify the software and product work as expected for a jurisdiction
• Coordinate with customer support teams to resolve any issues in the field

Requirements

• Bachelor’s degree in Computer Science or similar preferred or equivalent work experience
• 7+ years of experience working with embedded systems using Linux or equivalent.
• Deep understanding of the event-driven desktop applications using C#/.NET 4.0
• Proficient with C#, C++ and usage of databases like SQLite
• Working knowledge in Unity, Linux
• Deep understanding of the TCP/IP stack and Network Socket/performance optimization
• Advanced object-oriented design knowledge and familiarity with common patterns.
• Working knowledge of Rendering pipeline is a plus.
• Excellent debugging skills
• Experience using Bug-tracking tools and source code control
• Requires excellent organizational skills, good oral, and written communication skills
• Must be a team player and be able to work in a customer-oriented & fast-paced environment
• Casino Gaming experience, a plus

Note: All offers are contingent upon successful completion of a background check

*Posted positions are not open to third party recruiters and unsolicited resume submissions will be considered free referrals.

AGS is an equal opportunity employer.

Senior Software Engineer (Backend | Java/Python | AWS)

We’re looking for a Senior Software Engineer to join a high-impact Metadata Engineering team focused on powering the backend systems behind large-scale streaming platforms.

This role is all about building the systems that organize, structure, and distribute content data — helping ensure a seamless viewing experience for millions of users.

What You’ll Do

• Design and build scalable backend systems and services
• Own features end-to-end (design → development → deployment)
• Improve existing systems and workflows for performance and scalability
• Collaborate with cross-functional teams (Product, TPMs, Engineering)
• Mentor junior engineers and contribute to technical direction

What You Need

• 5+ years of backend software engineering experience
• Strong experience with Java and Python
• Hands-on experience with AWS (Lambda, SQS/SNS, Kinesis, DynamoDB, etc.)
• Experience with SQL and/or NoSQL databases
• Familiarity with event-driven architectures (Kafka, Kinesis, etc.)
• Strong understanding of data structures, algorithms, and system design
• Ability to work independently and solve complex problems

Nice to Have

• Experience with Graph databases (Neo4j)
• Familiarity with Terraform or GraphQL

Requirements

• Bachelor’s degree in a STEM field
• Strong backend engineering background (non-negotiable)

Why This Role?

• Work on high-scale systems powering major streaming platforms
• Be part of a team shaping how content data is structured and delivered
• Opportunity to make a real impact on user experience at scale

Date Posted:

Country:

Location:

Position Role Type:

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Security Clearance Type:

Security Clearance Status:

RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, VA.

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.

We have an exciting opportunity for a Senior Software Engineer – Embedded to join our Electro-Optical & Infrared (EO/IR) Solutions Engineering Team in McKinney, TX, which is part of our Advanced Products & Solutions group.

The Advanced Product and Solutions organization at RTX provides the joint warfighter with actionable information from an unblinking eye across the battlespace. By joining the APS Engineering team you’ll have the opportunity to design, develop and test product capabilities for Active Electronically Scanned Array (AESA) radars, integrated sensor suites, precision targeting, multispectral EO/IR targeting systems, Pilot Situational Awareness, Special mission aircraft and Strategic and tactical ISR Systems.

But more than anything, we are innovators, creators and strategists drawing inspiration from each other every day. We collaborate, iterate, and execute with an eye toward the company mission and personal career growth.

Explore our opportunities today and join us!

What You Will Do

• Supports all aspects of a software development life cycle as members of a multi-disciplined team. This would include supporting new and legacy military and commercial programs from concept and requirements, to design, development, integration, test, and potentially subsequent maintenance tasking.

• Uses and provides creative solutions to complex technical system and software integration problems.

• Works closely with Systems Engineers to design ideal solutions with the end user and operational needs in mind.

• The ability to obtain and maintain a Secret U.S. government issued security clearance and a Special Access Program security clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

• Work onsite at McKinney, TX [relocation eligible]

• This position will require occasional business-related travel.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.

• Development experience on Linux, VxWorks, or other Real Time Operating Systems.

• Experience using object-oriented programming and C++ design paradigms.

• Experience in developing, testing, and integrating real-time software applications written in C++.

• Additional experience in coding using C, C#, Java or closely related software languages.

• Working knowledge in computer scripting language such as Shell/Perl/Python.

• Experience working with multi-discipline team(s).

• Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

• Experience working in lab environments with physical hardware (e.g., test benches, simulators).

• Ability to quickly understand and navigate complex systems and established code bases.

• Experience with product development utilizing the Scrum techniques of the Agile software development process.

• Experience with DevSecOps pipeline implementation and utilization, including Static Code Analysis, Automated Build, and Automated Test techniques using continuous integration/continuous delivery with Test-Driven Development approach.

• Hands-on experience with Git for version control and GitLab for repository management.

• Ability to manage multiple priorities.

• Experienced in developing in CUDA to accelerate compute-intensive workloads on Nvidia GPUs.

What We Offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, Innovation, and Safety.

Learn More & Apply Now!

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

Clearance Information: This position requires security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here:  

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

Privacy Policy and Terms:

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Position Summary

Our client is building next-generation software that is redefining how modern factories operate. Their platform connects machines, production systems, and enterprise applications into a unified digital manufacturing ecosystem, enabling real-time data, intelligent orchestration, and highly automated operations across the shop floor. As manufacturers race toward smarter, more connected factories, this team is developing the technology that sits at the center of that transformation.

They are seeking a Senior Software Engineer to help design and build the core platform powering this vision. This is a highly technical, hands-on role focused on creating scalable, high-performance applications that integrate complex manufacturing systems and deliver real-time insights to operations teams. You will work alongside a strong engineering team building modern full-stack applications while helping drive architecture decisions and engineering best practices.

This role is ideal for engineers who enjoy solving complex problems, building systems that operate at scale, and working on technology that directly impacts real-world industrial environments.

Key Responsibilities

• Develop and enhance enterprise software services using JavaScript, React, Node.js, and MongoDB

• Build full-stack solutions spanning both front-end user interfaces and backend services

• Design and implement new product features and subsystems within an agile development environment

• Participate in architecture discussions and contribute to scalable system design

• Develop and maintain technical documentation related to system architecture and functionality

• Demonstrate completed work and features to stakeholders and internal teams

• Mentor junior engineers and contribute to a strong engineering culture

• Conduct code reviews to maintain high standards for performance, scalability, and maintainability

• Collaborate with adjacent teams to support integrations and cross-platform functionality

• Troubleshoot production issues and support live systems when needed

• Manage agile Scrum boards and coordinate development work for assigned team members

• Interface with external users when needed to resolve technical issues or gather feedback

• Contribute to project reporting and development planning

• Participate in on-call rotation and respond to critical system events

• Perform other related duties supporting product development and engineering operations