ZipRecruiter

Log In

1

Senior Software Engineer Jobs in Portland, ME (NOW HIRING)

Software Technology, Inc.

Product Manager - Sr

Portland, ME · On-site

$129K - $170K/yr

IT Product Manager Our client is hiring a Senior Product Manager to join their team. This group is ... data science, or software engineering * UI/UX and building software for operational usage

New

HTS Engineering Ltd

Senior Sales Engineer

Portland, ME · On-site

... Senior Sales Engineers. By joining HTS, you will be challenged to adapt quickly as you dive into ... Are proficient with all basic MS software, and have the ability to learn new desktop and web based ...

Unum UK

Sr. Data Engineer - CX Analytics

Portland, ME · Remote

$117K - $140K/yr

Software Engineering: Expertise in at least one relevant object-oriented programing language (i.e ... senior management and executive leadership, and attention to detail while effectively and ...

New

Unum Group

Sr. Data Engineer - CX Analytics

Portland, ME · On-site

$117K - $140K/yr

Software Engineering: Expertise in at least one relevant object-oriented programing language (i.e ... senior management and executive leadership, and attention to detail while effectively and ...

New

htseng

Senior Sales Engineer

Portland, ME · On-site

... Senior Sales Engineers. By joining HTS, you will be challenged to adapt quickly as you dive into ... Are proficient with all basic MS software, and have the ability to learn new desktop and web based ...

htseng

Senior Sales Engineer

Portland, ME · On-site

... Senior Sales Engineers. By joining HTS, you will be challenged to adapt quickly as you dive into ... Are proficient with all basic MS software, and have the ability to learn new desktop and web based ...

Hazen and Sawyer

Senior Principal Engineer

Portland, ME · On-site

$128K - $177K/yr

Hazen and Sawyer is seeking a Drinking Water Project Engineer for our Portland, ME office. As part ... Proficient in all MS Office based computer software * Excellent communication and interpersonal ...

LJB, Inc.

Senior Civil Engineer

South Portland, ME · On-site

$110K - $179K/yr

AutoCAD Civil 3D software experience. * Experience working with state or local Departments of ... Civil Engineer, Land Development, Senior Civil Engineer, South Portland, Maine

H&H

Senior Structural Engineer

Yarmouth, ME · On-site

$103K - $139K/yr

H&H is offering an exciting opportunity for a Senior Structural Engineer to join our Yarmouth, ME ... software (preferred) * Experience with local client base preferable (MaineDOT, NHDOT) * Must be ...

H&H

Senior Structural Engineer

Yarmouth, ME · On-site

$103K - $139K/yr

H&H is offering an exciting opportunity for a Senior Structural Engineer to join our Yarmouth, ME ... software (preferred) * Experience with local client base preferable (MaineDOT, NHDOT) * Must be ...

H&H

Senior Structural Engineer

Yarmouth, ME · On-site

$103K - $139K/yr

H&H is offering an exciting opportunity for a Senior Structural Engineer to join our Yarmouth, ME ... software (preferred) * Experience with local client base preferable (MaineDOT, NHDOT) * Must be ...

previous pagenext page

Showing results 21-40

All JobsSoftware Engineer JobsSenior Software Engineer JobsSenior Software Engineer Jobs in Portland, ME

Senior Software Engineer information

See Portland, ME salary details

$78.3K

$148.7K

$199.2K

How much do senior software engineer jobs pay per year?

As of Aug 9, 2026, the average yearly pay for senior software engineer in Portland, ME is $148,682.00, according to ZipRecruiter salary data. Most workers in this role earn between $127,100.00 and $167,600.00 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 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 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.
More about Senior Software Engineer jobs
What are the most commonly searched types of Software Engineer jobs in Portland, ME? The most popular types of Software Engineer jobs in Portland, ME are:
What are popular job titles related to Senior Software Engineer jobs in Portland, ME? For Senior Software Engineer jobs in Portland, ME, the most frequently searched job titles are:
What job categories do people searching Senior Software Engineer jobs in Portland, ME look for? The top searched job categories for Senior Software Engineer jobs in Portland, ME are:
What cities near Portland, ME are hiring for Senior Software Engineer jobs? Cities near Portland, ME with the most Senior Software Engineer job openings:
Senior Software Engineer jobs near you
Infographic showing various Senior Software Engineer job openings in Portland, ME as of August 2026, with employment types broken down into 83% Full Time, 14% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $148,682 per year, or $71.5 per hour.

Software Development Engineer 4- AI & Agentic Systems

WEX, Inc.

Portland, ME • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 12 days ago

WEX Inc. rating

7.3

Company rating: 7.3 out of 10

Based on 21 frontline employees who took The Breakroom Quiz

13th of 21 rated payment service providers

Job description

About the Role
At WEX, a Software Development Engineer (SDE) Level 4 is a recognized Staff/Lead technical expert who provides cross-platform strategic leadership. You will influence global system architecture, help define enterprise-wide standards, and actively participate in the functional design/redesign of business processes to maximize AI and automation.
In this role, you will act as a visionary builder and strategic anchor for WEX's AI-driven opportunities. You will architect complex autonomous systems, champion enterprise-wide AI adoption, and define the orchestration logic that enables next-generation agentic AI to scale securely and efficiently across multiple domains and services.
How you'll make an impact
AI & Agentic Engineering
  • Autonomous System Architecture: Architect complex autonomous systems and design multi-agent workflows, defining orchestration logic across multiple domains and services while handling advanced state management, memory persistence, and tool interactions.
  • Advanced AI Leverage & Mentorship: Champion the secure integration of LLMs into enterprise process workflows. Mentor senior engineers across the organization on advanced AI leverage and agentic design patterns.
  • Strategic AI Adoption: Filter industry AI trends through rigorous cost-benefit analysis. Build prototypes and "Golden Paths" that enable other teams to adopt high-value, cutting-edge technologies safely and rapidly.

Architecture & System Design
  • Cross-Platform Leadership: Solve architectural bottlenecks that cross team boundaries. Review designs from other teams to ensure consistency and define the "Golden Path" for how disparate services should communicate.
  • Security by Design: Lead Threat Modeling sessions to ensure security across multiple teams. Participate in the definition of security and compliance standards for enterprise AI adoption.
  • Enterprise Quality Standards: Demonstrate high standards for Code and Configuration Quality. Define style guides, documentation templates, and configuration guardrails, and build shared custom components or configuration frameworks.

Cloud Infrastructure, Reliability & CI/CD
  • Reusable Tooling & CI/CD: Create reusable CI/CD templates (e.g., Helm Charts, Argo Workflows), deployment modules, and automated sandbox-seeding scripts that standardize how other teams deploy and enforce privacy compliance.
  • Reliability & Chaos Engineering: Define the standard SLIs/SLOs that teams must monitor and drive chaos testing initiatives across the engineering organization.
  • Operational Excellence & Self-Service: Lead the Post-Mortem Corrective of Errors (COE) process, enforcing action items to prevent recurrence. Build "Self-Service" platform capabilities that allow business units to self-solve data issues without logging support tickets.

Product Partnership & Technical Leadership
  • Cross-Team Requirements & KPIs: Elicit requirements for initiatives that span multiple teams, identifying data model conflicts early. Validate all technical requirements against broader business KPIs (e.g., Retention, CAC, Time-to-first-dollar).
  • Roadmap & Dependency Management: Manage dependencies on the quarterly roadmap, identifying "Critical Path" risks weeks in advance. Ensure the architecture supports the future roadmap, not just the current sprint, and negotiate timelines seamlessly with other teams.
  • Stakeholder Alignment & Translation: Organize and lead technical workshops (e.g., Event Storming, Architecture Reviews). Translate complex architectural risks into "Business Language" for stakeholders, explaining why refactoring matters in terms of revenue or customer experience.
  • Friction Management & Trust Building: Identify friction between teams (e.g., API conflicts, mismatched release cadences) and mediate solutions (e.g., implementing Contract Testing). Build trust across organizational boundaries and de-escalate complex technical disputes.
  • Career Advocacy & Polyglot Leadership: Act as a "polyglot" leader who moves across disparate stacks to unblock teams. Coach senior peers on "learning how to learn" and institutionalize feedback loops. Spot high-potential SDE 2s and 3s, giving them visibility and actively advocating for their career advancement.

The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section.
Pay Range: $140,600.00 - $173,100.00

What WEX Inc. employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply