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Senior Software Engineer Jobs in Rensselaer, NY (NOW HIRING)

StackandCo

Senior Software Engineer

Galway, NY · On-site

$124K - $163K/yr

Comfortable representing the team and presenting to management. \n Technology Focus: \n \n * 5+ Years working in a commercial Software Development environment \n * Strong programming knowledge of ...

PNC Bank

Software Engineer Sr

Schenectady, NY · On-site

$118K - $156K/yr

As a Software Engineer Sr within PNC's Technology organization, you will be based in Pittsburgh, PA, Strongsville, OH, Cleveland, OH, Dallas, TX, Phoenix, AZ, Denver, CO, or Birmingham, AL. Job ...

Mindlance

Software Developer - Senior

Albany, NY · On-site

$54.25 - $71.50/hr

Mindlance is a company seeking a Senior Software Developer. The role involves analysis, design, coding, and testing of application code, along with maintenance and enhancement work for the ...

JSM Consulting Inc.

Software Developer - Senior

Albany, NY · On-site

$56.75 - $72.50/hr

JSM Consulting Inc. is a company that specializes in software development, and they are seeking a Senior Software Developer. The role involves writing and maintaining Java software for various ...

JSM Consulting Inc.

Software Developer Senior

Albany, NY · On-site

$54.25 - $71.50/hr

JSM Consulting Inc. is a consulting firm seeking a Senior Software Developer. The role involves developing, building, and testing Java EE applications while utilizing J2EE technologies and frameworks.

Broadview FCU

Software Engineer

Albany, NY · On-site

$77K - $98K/yr

Participate in peer reviewing code and paired programming with senior developers * Recommend and implement enhancements and modifications to the platform * Develop software applications and APIs ...

Broadview FCU

Software Engineer

Albany, NY · On-site

$77K - $98K/yr

Participate in peer reviewing code and paired programming with senior developers * Recommend and implement enhancements and modifications to the platform * Develop software applications and APIs ...

StackandCo

Senior Software Developer

Galway, NY · On-site

$55.25 - $73/hr

Working in a collaborative environment and along with the Development Manager, implement best Software Development practices. \n * You enjoy taking on technical challenges and getting to the root ...

Jobtailor

Senior Software Developer, COBOL

Albany, NY · On-site

$90 - $150/hr

Bachelor's degree or equivalent in Computer Science, Mathematics, Engineering or a related ... Software Development Life Cycle Tools & Technologies * IBM WebSphere Application Server * JUnit

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All JobsSoftware Engineer JobsSenior Software Engineer JobsSenior Software Engineer Jobs in Rensselaer, NY

Senior Software Engineer information

See Rensselaer, NY salary details

$75K

$142.3K

$190.6K

How much do senior software engineer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for senior software engineer in Rensselaer, NY is $142,266.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,600.00 and $160,300.00 per year, depending on experience, location, and employer.

What is a senior software engineer?

A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.

What are the key skills and qualifications needed to thrive as a senior software engineer, and why are they important?

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.

What are some common challenges senior software engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

What is the difference between Senior Software Engineer vs Software Developer?

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared for entry-level to mid-level roles

The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

What does a senior software engineer do?

A senior software engineer designs, develops, and maintains software applications, often leading projects and mentoring junior team members. They analyze requirements, write code, perform testing, and collaborate with cross-functional teams to ensure quality and efficiency. Proficiency in programming languages, problem-solving skills, and experience with development tools are essential for this role.
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The most popular types of Software Engineer jobs in Rensselaer, NY are:

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For Senior Software Engineer jobs in Rensselaer, NY, the most frequently searched job titles are:

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Cities near Rensselaer, NY with the most Senior Software Engineer job openings:

Senior Software Engineer jobs near you
Infographic showing various Senior Software Engineer job openings in Rensselaer, NY as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $142,266 per year, or $68.4 per hour.

Senior Software Engineer (Python)

New York Independent System Operator

Rensselaer, NY • On-site

$120K - $162K/yr

Other

This job post has expired today. Applications are no longer accepted.

Job description

The New York Independent System Operator (NYISO) manages the efficient flow of electricity on more than 11,000 circuit-miles of high-voltage transmission lines, dispatching power from hundreds of generating units across the state.
The New York Independent System Operator (NYISO) applies cutting-edge technology to operating a reliable electricity system, managing competitive markets for wholesale electricity, and planning for the Empire State's energy future. The NYISO's Information Technology department invites applications for a full-time Senior Software Engineer to join our team.
We are seeking a Senior Software Engineer with advanced Python development skills and a strong background in data analysis, modeling and transformation. The ideal candidate will have working knowledge of power systems modeling, simulation and analysis, and will play a key role in supporting and enhancing Python-based applications used across engineering workflows. This role requires daily use of AI-augmented programming practices and includes mentoring staff in adopting these tools to improve productivity and innovation.
ESSENTIAL DUTIES and RESPONSIBILITIES
  • Design, develop, and support maintenance of Python-based tools for power system simulation, data processing, and visualization
  • Lead the integration of Python APIs and scripts from commercial and custom power system analysis tools into internal workflows
  • Develop automated testing, deployment, and monitoring solutions for a variety of systems
  • Elicit system requirements from business owners
  • Collaborate with appropriate teams to implement and optimize DevOps pipelines to ensure secure and efficient software delivery of custom software tools
  • Use AI-augmented programming tools (e.g., code generation assistants, intelligent IDEs) as part of daily development work
  • Mentor staff in adopting AI-augmented programming practices
  • Collaborate with cross-functional teams, including developers, system administrators, business owners and project managers to gather requirements and provide technical expertise
  • Support and enhance existing applications by working with vendors to improve their products in the areas of required business functionality and security
  • Ensure compliance with cybersecurity standards and best practices
  • Document code, processes, and system architecture clearly and effectively

Qualifications:
  • Bachelor's Degree (BS), Computer Science or Information Systems desired
  • At least three years of experience working with DevOps and Python-based solutions
  • Advanced proficiency in Python, including experience with scientific and data libraries (e.g., NumPy, Pandas, Matplotlib) and object-oriented concepts
  • Strong experience in integrating and managing APIs across diverse platforms and tools
  • Experience with data modeling and transformation
  • Strong interest in learning about power system simulation methodologies such as load flow analysis, contingency analysis, and production cost modeling
  • Experience using AI-augmented development environments and tools
  • Familiarity with DevOps principles and tools, including CI/CD pipelines and version control systems (e.g., Git)
  • Understanding of security best practices and compliance frameworks
  • Understanding of cloud computing concepts, designs, and services
  • Strong problem-solving and troubleshooting skills
  • Excellent communication and teamwork abilities
  • Willingness to participate in a 24x7x365 on-call support rotation
  • Data analytics and business intelligence experience preferred
  • MATLAB experience preferred

CERTIFICATES, LICENSES, REGISTRATIONS
None required.
ADDITIONAL REQUIREMENTS
  • Ability to read, analyze and interpret common scientific and technical journals, financial reports and legal documents. Ability to respond to common inquiries or complaints from market participants, regulatory agencies or members of the business community. Ability to write clear technical documentation that conforms to prescribed style and format. Ability to effectively present information to top management, public groups and/or boards of directors.
  • Ability to comprehend and apply principles of advanced calculus, modern algebra and advanced statistical theory. Ability to work with concepts such as limits, rings, quadratic and differential equations and proofs of theorems.
  • Ability to apply principles of logical or scientific thinking to a wide range of intellectual and practical problems. Ability to deal with nonverbal symbolism (formulas, scientific equations, graphs, etc.) in its most difficult phases. Ability to deal with a variety of abstract and concrete variables.
  • Intermediate competency in Windows operating environment using MS Office applications, e-mail and Internet programs.

PHYSICAL DEMANDS
While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand, walk, sit and use hands to perform routine office tasks. The employee is occasionally required to reach with hands and arms. The employee must occasionally lift and/or move up to 15 pounds. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
WORK ENVIRONMENT
The noise level in the work environment is usually moderate. Contact with staff and public will occur. Travel may be required to attend and/or conduct meetings, conferences and training. This position may require work on nights, weekends or holidays.
At the NYISO, we realize the importance of balancing the availability of remote work with the inherent value of bringing people together to attain success in the areas of maximum collaboration, relationship building and growth, teamwork, innovation and problem solving, as well as professional development and mentoring. In this role, you will be required to work onsite from our Rensselaer, NY location several days per workweek, with the option to work remotely on the remaining days. You will also be expected to respond to all business needs that may require any increase to the regular onsite requirements.
The NYISO takes pride in recruiting, developing and retaining highly talented individuals. In addition to competitive salaries, we offer a comprehensive benefits package and innovative reward programs.
All offers of employment will be made contingent upon the successful completion of a drug screening and background check.
The NYISO is an Equal Opportunity Employer and as such, does not discriminate in its hiring or employment practices.
#LI-Onsite
Salary Range
$105,700-$176,400 USD

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