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Mid Level Software Engineer Jobs in Portland, ME

eNett

Staff Software Development Engineer

Portland, ME · Remote

$140K - $173K/yr

Provide technical mentorship and guidance to mid-level and senior engineers, fostering a culture of high engineering standards. Key Qualifications: * 10+ Years of Engineering Excellence: Proven track ...

WEX

Staff Software Development Engineer

Portland, ME · Remote

$140K - $173K/yr

Provide technical mentorship and guidance to mid-level and senior engineers, fostering a culture of high engineering standards. Key Qualifications: * 10+ Years of Engineering Excellence: Proven track ...

GDIT

Aegis Combat Systems Engineers - Bath

Bath, ME · Hybrid

$111K - $150K/yr

Please note there will be different levels for some of these positions (Junior, Mid-Level, and Senior). * Operational Readiness Test System Engineer * Command, Control & Display Engineer * Aegis ...

Agri-Cycle Energy LLC

Data Engineer

South Portland, ME · On-site

$118K - $142K/yr

... and Mid-Atlantic. Our process utilizes organic waste to create renewable energy through local ... level budgeting and cost tracking Customer & Sales Systems · Generate automated client reports ...

Esri

Sr. Software Developer - iOS Apps

Portland, ME

$61.50 - $79.50/hr

Overview Join Esri's Field Apps team and take the lead in building next-level iOS applications that ... As a Senior Software Developer, you'll design and implement intuitive, high-performance mobile apps ...

Howell Laboratories Inc

Weld Engineer

Bridgton, ME · On-site

$36 - $49.75/hr

Mid-Senior Level Impact: Direct oversight of weld quality and process optimization Role Overview As ... Proficiency in Office software. * Deep knowledge of metallurgy and heat-affected zones (HAZ)

Howell Laboratories Inc

Weld Engineer

Bridgton, ME · On-site

$36 - $49.75/hr

Mid-Senior Level Impact: Direct oversight of weld quality and process optimization Role Overview As ... Proficiency in Office software. * Deep knowledge of metallurgy and heat-affected zones (HAZ)

Howell Laboratories, Inc.

Weld Engineer

Bridgton, ME · On-site

$36 - $49.75/hr

Mid-Senior Level Impact: Direct oversight of weld quality and process optimization Role Overview As ... Proficiency in Office software. * Deep knowledge of metallurgy and heat-affected zones (HAZ)

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All JobsMid Level Software Engineer JobsMid Level Software Engineer Jobs in Portland, ME

Mid Level Software Engineer information

See Portland, ME salary details

$65K

$151K

$210.3K

How much do mid level software engineer jobs pay per year?

As of Jun 12, 2026, the average yearly pay for mid level software engineer in Portland, ME is $150,979.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,800.00 and $177,100.00 per year, depending on experience, location, and employer.

What is a Mid Level Software Engineer job?

A Mid Level Software Engineer is a professional with a few years of experience who develops, tests, and maintains software applications. They work independently on tasks, contribute to code reviews, and collaborate with teams to design and implement solutions. Mid-level engineers are expected to write clean, efficient code, troubleshoot issues, and improve system performance. They may also mentor junior developers and participate in architectural discussions. Typically, they have strong problem-solving skills and proficiency in programming languages relevant to their role.

What typical responsibilities can I expect as a Mid Level Software Engineer?

As a Mid Level Software Engineer, you will be involved in designing, coding, testing, and maintaining software applications, often working on both new and existing projects. You’ll collaborate with other engineers, product managers, and QA teams to deliver features that meet business requirements, while also participating in code reviews and contributing to architectural decisions. Your responsibilities may also include troubleshooting bugs, refining development processes, and occasionally mentoring junior engineers. This role typically offers a blend of technical challenge, teamwork, and opportunities for continued skill development.

What are the key skills and qualifications needed to thrive in the Mid Level Software Engineer position, and why are they important?

To thrive as a Mid Level Software Engineer, you need a solid understanding of software development principles, programming languages such as Java, Python, or C#, and a bachelor’s degree in computer science or a related field. Experience with version control systems like Git, familiarity with agile methodologies, and sometimes certifications such as AWS Certified Developer or Microsoft Certified: Azure Developer Associate are advantageous. Strong problem-solving skills, teamwork, and effective communication are standout soft skills in this position. These combined skills enable engineers to deliver high-quality code, collaborate efficiently within development teams, and adapt to evolving project requirements.

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 Mid Level Software Engineer jobs in Portland, ME? For Mid Level Software Engineer jobs in Portland, ME, the most frequently searched job titles are:
What job categories do people searching Mid Level Software Engineer jobs in Portland, ME look for? The top searched job categories for Mid Level Software Engineer jobs in Portland, ME are:
Mid Level Software Engineer jobs near you

Staff Software Development Engineer

eNett

Portland, ME • Remote

$140K - $173K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 18 days ago

Job description

This is a remote position; however, the candidate must reside within 30 miles of one of the following locations: Portland, ME; Boston, MA; Chicago, IL; Dallas, TX; San Francisco Bay Area, CA; and Seattle/WA.

As a Staff Backend Engineer, you will be the primary architect and execution lead for the transformation of our Digital Credit Application. We are pivoting from a Salesforce-centric monolith to a high-performance, pluggable API ecosystem. Your mission is to decouple core adjudication logic, enable rapid A/B testing of the customer journey, and lay the technical foundation for future AI-driven chat and automated decisioning experiences.

This is a high-impact role designed for a "builder" who can manage the duality of supporting a live Salesforce environment while aggressively migrating mission-critical services to a modern, micro services based backbone.

Core Responsibilities

  • Architectural Migration: Lead the "Strangler Fig" migration of credit application logic out of Salesforce and into a scalable, cloud-native Java/Spring Boot microservices environment.

  • Pluggable Adjudication: Design and implement a modular adjudication layer that allows the business to swap or update credit rules and third-party data providers without impacting the core application flow.

  • API-First Ecosystem: Build and maintain robust, versioned REST/gRPC APIs that support a multi-channel experience (Mobile, Web, and future AI Chat interfaces).

  • A/B Strategy Enablement: Engineer the backend infrastructure to support dynamic routing and experimentation, allowing Product teams to test various application flows and UI treatments in real-time.

  • Operational Excellence & Ownership: Transition the platform by establishing rigorous standards for CI/CD, observability (OpenTelemetry), and automated testing.

  • AI Readiness: Partner with Data Science teams to ensure data pipelines and backend schemas are optimized for LLM integration and real-time credit decisioning models.

  • Provide technical mentorship and guidance to mid-level and senior engineers, fostering a culture of high engineering standards.

Key Qualifications:

  • 10+ Years of Engineering Excellence: Proven track record in backend architecture, specifically within Fintech, Lending, or Credit systems.

  • Salesforce Integration Mastery: Significant experience integrating Salesforce with external AWS/Cloud microservices. You understand how to extract business logic from Apex/Flows into external services.

  • Modern Java Stack: Expert-level proficiency in Java 17/21, Spring Boot 3.x, and Spring Cloud.

  • Complex Adjudication & Rules Engines: Experience building or implementing rules engines (e.g., Drools, Camunda, or custom JSON-logic) for automated decisioning.

  • Event-Driven Design: Deep experience with Kafka or RabbitMQ for maintaining data consistency between the new API layer and legacy systems of record.

  • Contract-First Development: Strong belief in API contracts (OpenAPI/Swagger) to ensure seamless collaboration with frontend and mobile teams.

  • Migration Strategy: Demonstrated ability to migrate high-volume traffic from legacy systems to new stacks with zero downtime.

  • Excellent analytical skills and capability in identifying and resolving complex, cross-functional problems.

  • Strong written and verbal communication skills, able to present complex technical concepts clearly.

  • Bachelor's degree in Computer Science or a related field.

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

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