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Senior Performance Engineer Jobs in Springfield, MA

RCN Capital LLC

Senior Software Engineer

South Windsor, CT · On-site

$119K - $156K/yr

We are seeking a Senior Full Stack Engineer to lead the design and development of next-generation ... Develop high-performance backend services and APIs using C# and .NET 10 / .NET Core * Design and ...

TicketNetwork

Senior Software Engineer

South Windsor, CT · On-site

$119K - $156K/yr

We are seeking a Senior Full Stack Engineer to lead the design and development of next-generation ... Develop high-performance backend services and APIs using C# and .NET 10 / .NET Core * Design and ...

BETA Group, Inc

Senior Traffic Engineer

Hartford, CT · On-site

$106K - $160K/yr

The Senior Traffic Engineer will play a key role in performing and overseeing technical designs ... Signal Performance Measures (ATSPM), and the deployment of Vehicle to Infrastructure (V2I ...

Cfins

Senior Network Engineer

Glastonbury, CT · On-site

$91.10 - $133.70/hr

The Senior Network Engineer will serve as a key technical resource in the planning and execution of ... Evaluate existing network architecture and recommend improvements to increase performance ...

Crum & Forster

Senior Network Engineer

Glastonbury, CT · On-site +1

$104K - $142K/yr

The Senior Network Engineer will serve as a key technical resource in the planning and execution of ... Evaluate existing network architecture and recommend improvements to increase performance ...

Vertafore

Sr. Software Engineer

Windsor, CT · On-site

$122K - $160K/yr

Underpinned by unmatched speed and performance power, we are the trusted backbone that's taking the ... As a Sr. Software Engineer, you will shape and improve the experience of key Vertafore customers.

Crum & Forster

Senior Network Engineer

Glastonbury, CT · On-site +1

The Senior Network Engineer will serve as a key technical resource in the planning and execution of ... Evaluate existing network architecture and recommend improvements to increase performance ...

Vancord

Senior Security Engineer

Glastonbury, CT · Remote

$95K - $145K/yr

Vancord is seeking a Senior Security Engineer to serve as our SOC Lead. This is primarily a ... Develop training, playbooks, and performance goals to ensure analysts thrive. * Refine and maintain ...

W3Global Inc.

Senior Electrical Engineer

Windsor, CT · On-site

$100K - $150K/yr

Our client is seeking a Senior Electrical Engineer to drive the design and development of advanced ... This role focuses on delivering reliable, high-performance solutions across the full project ...

Verogy

Senior Project Engineer

West Hartford, CT · On-site

$135 - $150/hr

Your Impact We are seeking an experienced and technically driven Senior Project Engineer to provide ... Conduct capacity tests, load calculations, PV system performance validations, and high‑level ...

Vertafore

Sr. Software Engineer

Windsor, CT · On-site

$122K - $160K/yr

Underpinned by unmatched speed and performance power, we are the trusted backbone that's taking the ... As a Sr. Software Engineer, you will shape and improve the experience of key Vertafore customers.

Vertafore

Sr. Software Engineer

Windsor, CT · On-site

$122K - $160K/yr

Underpinned by unmatched speed and performance power, we are the trusted backbone that's taking the ... As a Sr. Software Engineer, you will shape and improve the experience of key Vertafore customers.

Neon Aerospace

Senior Engineer, Propellers

Manchester, CT · On-site

$105K - $144K/yr

Neon is seeking a Senior Engineer - Propellers to lead key engineering work across propeller system ... Improve product performance, manufacturability, and readiness for production. * Partner closely ...

Sun Life Financial

Senior Operational Engineer

Hartford, CT · Remote

$105K - $144K/yr

As a senior technical contributor with an AI-forward mindset, you will play a key role in ... and performance. * Participate in Agile delivery teams and contribute to DevOps practices ...

New

RCN Capital, LLC.

Senior Software Engineer

Windsor, CT · On-site

$100 - $130/hr

We are seeking a Senior Full Stack Engineer to lead the design and development of next-generation ... Advanced PostgreSQL skills, including schema design, performance tuning, and NoSQL (CosmosDB ...

Salas O'Brien

Senior Mechanical Engineer

Bloomfield, CT · On-site

$100K - $130K/yr

Senior Mechanical Engineer At Salas O'Brien we tell our clients that we're engineered for impact ... This role is also eligible for performance-based bonuses and a comprehensive U.S. based benefits ...

Deloitte

Senior Data Engineer

Hartford, CT · Hybrid

$106K - $145K/yr

Drive performance optimization - AQE tuning, liquid clustering, broadcast joins, shuffle partition ... As an experienced Senior Data Engineer you will have the ability to share new ideas and collaborate ...

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Showing results 21-40

All JobsPerformance Engineer JobsSenior Performance Engineer JobsSenior Performance Engineer Jobs in Springfield, MA

Senior Performance Engineer information

See Springfield, MA salary details

$59.3K

$126.1K

$182.9K

How much do senior performance engineer jobs pay per year?

As of Aug 22, 2026, the average yearly pay for senior performance engineer in Springfield, MA is $126,114.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,100.00 and $143,000.00 per year, depending on experience, location, and employer.

What is a senior performance engineer?

A Senior Performance Engineer is responsible for optimizing the performance, scalability, and reliability of software applications and systems. They analyze performance metrics, conduct load and stress testing, identify bottlenecks, and work with development teams to implement improvements. This role requires expertise in profiling tools, performance tuning, and system architecture to ensure optimal user experience. Additionally, they may establish best practices for performance testing and contribute to overall system design decisions.

What does a senior performance engineer do?

A Senior Performance Engineer typically oversees performance testing cycles, analyzes system metrics, and collaborates with development and operations teams to diagnose and resolve performance issues. Daily tasks often include designing and executing test plans, monitoring application behavior under load, and recommending improvements for scalability and efficiency. They also participate in code reviews and architectural discussions to identify potential bottlenecks early in the development cycle. Consistent communication with both technical and non-technical stakeholders is key, ensuring that performance goals align with business objectives.

What skills and qualifications are needed to thrive as a senior performance engineer?

To thrive as a Senior Performance Engineer, expertise in performance analysis, capacity planning, and system optimization—often backed by a degree in computer science or a related field—is crucial. Familiarity with tools such as LoadRunner, JMeter, APM solutions, profiling tools, and relevant certifications like CPPE or PMP are highly beneficial. Strong problem-solving, collaboration, and clear communication skills are vital for identifying bottlenecks and working closely with cross-functional teams. These combine to ensure robust system performance, user satisfaction, and reliable application scalability in demanding technical environments.

What are popular job titles related to Senior Performance Engineer jobs in Springfield, MA?

For Senior Performance Engineer jobs in Springfield, MA, the most frequently searched job titles are:

What cities near Springfield, MA are hiring for Senior Performance Engineer jobs?

Cities near Springfield, MA with the most Senior Performance Engineer job openings:

Senior Performance Engineer jobs near you
Infographic showing various Senior Performance Engineer job openings in Springfield, MA as of June 2026, with employment types broken down into 92% Full Time, 7% Part Time, and 1% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $126,114 per year, or $60.6 per hour.

Senior Software Engineer

RCN Capital LLC

South Windsor, CT • On-site

$119K - $156K/yr

Full-time

Retirement

Re-posted 27 days ago

Job description

RCN Capital is a nationwide wholesale lender focused on helping real estate investors and independent mortgage brokers finance non-owner-occupied residential investment properties. We support a range of strategies including ground-up construction, fix-and-flip projects, and long-term rental financing through a streamlined process, dedicated teams, and a commitment to exceptional service.
We are seeking a Senior Full Stack Engineer to lead the design and development of next-generation financial and partner-facing platforms, including the Loan Origination System (LOS), Partner Ecosystem, and Sales Portal. This role is responsible for end-to-end delivery of modern, cloud-native applications using .NET 10, React, and TypeScript, with a strong emphasis on scalable architecture and high-quality engineering standards.
The ideal candidate brings a builder mindset for net-new development, combined with an innovation mindset to integrate AI-powered capabilities and agentic workflows into core business processes. This role will act as a technical leader within the Project Nexus ecosystem and serve as a bridge between onshore leadership and offshore delivery teams.
Primary Responsibilities:
  • Lead architecture and hands-on development of modern web applications supporting LOS, Partner Portals, and Sales Platforms
  • Design, build, and maintain React and TypeScript front-end applications using modern patterns and state management
  • Develop high-performance backend services and APIs using C# and .NET 10 / .NET Core
  • Design and implement AI-powered features, including intelligent agents and automated document processing using Azure OpenAI Services
  • Collaborate closely with offshore development teams, performing code reviews and providing architectural and technical guidance
  • Design and implement cloud-native architectures leveraging Azure services such as Functions, App Services, Service Bus, and serverless components
  • Ensure secure-by-design coding practices, including authentication, authorization, and secrets management
  • Support production systems and participate in design reviews, technical planning, and platform evolution initiatives

Required Skills:
Frontend:
  • Expert-level React (Hooks, Context API) and TypeScript.
  • Experience with modern state management (Redux/Zustand) and Tailwind CSS

Backend:
  • Deep proficiency in C# and .NET 10/Core.
  • Experience with Entity Framework Core and high-performance API design.

AI/GenAI:
  • Proven experience with LLMs (4th generation or newer), Prompt Engineering, and building RAG applications.
  • Familiarity with LangChain or Semantic Kernel is a plus.

Cloud
  • Strong experience with Azure (App Services, AI Search, Key Vault) and Azure DevOps/GitHub Actions for CI/CD.

Database
  • Advanced PostgreSQL skills, including schema design, performance tuning, and NoSQL (CosmosDB) experience.

Preferred Skills:
  • Experience with AI / GenAI concepts, including LLMs, prompt engineering, or Retrieval-Augmented Generation (RAG) patterns
  • Familiarity with Azure OpenAI Services, LangChain, Semantic Kernel, or similar frameworks
  • Experience with containerization and orchestration (Docker, Kubernetes)
  • Exposure to NoSQL databases such as Cosmos DB
  • Understanding of secure coding practices and regulated data environments

Required Experience:
  • 7+ years of professional software development experience
  • At least 3 years operating in a Senior or Lead Engineer capacity
  • Hands-on experience building and supporting production-grade, cloud-native applications
  • Experience collaborating with distributed or offshore development teams

Preferred Experience:
  • FinTech, lending, or financial services platform development
  • Building or modernizing partner portals or external-facing systems
  • Greenfield development of enterprise platforms
  • Platforms that have evolved to incorporate AI-assisted workflows

Education:
  • Bachelor's degree in Computer Science, Software Engineering, Information Systems, or related field required
  • Master's degree in Computer Science, Software Engineering, Information Systems, or related field preferred

Preferred Certifications:
  • Microsoft Certified: Azure Developer Associate
  • Microsoft Certified: Azure Fundamentals or Azure AI Fundamentals
  • Other relevant cloud or software engineering certifications

Work Schedule:
  • Full time
  • Monday-Friday, 9:00AM to 6:00PM
  • Hybrid work model with first 90 days onsite and 2 days/week in office after in either:
    • South Windsor, CT
    • Charlotte, NC

Why RCN Capital:
  • Growth-oriented environment with opportunities to expand your legal skill set
  • Ongoing training and development
  • Casual dress policy
  • Free food and beverage program
  • Competitive benefits, including 401(k)
  • And many additional perks

Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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