Mid Level App Developer Jobs
Mid level app developer jobs go to developers ready to own features end to end, drive architecture decisions with limited oversight, and bring junior teammates up to speed. Openings run across Banking & Financial Services, Manufacturing, and Technology & Software, with 25% of roles offered remotely or hybrid, and employers like Northwest Bank, Datadog, and THEMESOFT hiring at this level now.
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Job Description
The Core Application Developer II is a mid entry level systems application developer role that will be responsible for writing code mainly in RPGLE, SQL RPG and CLLE. This position is responsible for designing, coding, unit testing, and creating, maintaining support documentation, and assisting other Developers. The candidate will also provide tier 1 and 2 technical support for business applications.
Essential Functions
- Develop applications and solutions using RPG, SQL RPG, CL or other equivalent programming languages
- Develop and maintain solutions utilizing Fiserv Signature
- Integrate applications to Fiserv Signature using Fiserv Communicator
- Create and maintain architecture diagrams, design diagrams and data flow diagrams using Microsoft Visio or other equivalent tools
- Follow PMO governance processes to execute a project on behalf of a customer/sponsor
- Work with internal customers to assess business needs and work with a team to design solutions
- Participate in all phases of the software development life cycle (SDLC)
- Participate in developing user and technical documentation
- Lead requirements analysis and application design for smaller projects
- Learn to consider information security and regulatory requirements in SDLC
- Troubleshoot and resolve daily issues with the perspective of minimizing incidents and developing supporting documentation that may be used by Tier 1 support teams
- Accept mentorship from senior developers and may mentor Core Application Developer I
- Install new software and custom changes following Change Management disciplines
Additional Essential Functions
- Ensure compliance with Northwest’s policies and procedures, and Federal/State regulations
- Navigate Microsoft Office Software, computer applications, and software specific to the department in order to maximize technology tools and gain efficiency
- Work as part of a team
- Work with on-site equipment
Additional Responsibilities
- Participates in other special projects
Safety and Health for those without supervisory duties
- Abide by the rules of the safety and loss prevention program
- Perform work tasks in a safe manner
- Report any and all injuries to supervisor
- Know what to do in case of an emergency
Qualifications
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
Education
Bachelor's Degree Computer Science, Information Technology (Software development track) or Engineering with a programming concentration AND at least 3 years' experience
Or Associate's Degree With at least 6 years' work experience
Or High School Diploma With at least 8 years' work experience
Work Experience
3 - 5 years Banking experience
3 - 5 years In I-series AS400 Development
3 - 5 years With Fiserv Signature core banking software
General Employee Knowledge, Skills, And Abilities
- Ability to establish effective working relationships among team members and participate in solving problems and making decisions
- Ability to present and express ideas and information clearly and concisely in a manner appropriate to the audience, whether oral or written
- Ability to actively listen to what others are saying to achieve understanding, sharing information with others and facilitating the open exchange of ideas and information
- Ability to establish courses of action for self to accomplish specific goals, develop and use tracking systems for monitoring own work progress, and effectively use resources such as time and information
- Ability to make right decisions based on perceptive and analytical processes, practicing good judgment in gray areas
Additional Knowledge, Skills And Abilities
- Knowledge of I-series AS400 development
- Knowledge of Fiserv Signature core banking software
- Knowledge of Automation, Unit Testing and Powershell and an ability to continue to learn
- Knowledge of software development and ability to analyze solutions and design
- Knowledge of relational data model. Experience in writing SQL statements for relational database management systems like SQL and Query SQL
- Ability to take a disciplined approach to development including quality, testing and documentation
- Ability to design information security into applications
- Ability to learn quickly; eager to use new technologies in a team with varied strengths environment
Northwest is an equal opportunity employer. We are committed to creating an inclusive environment for all employees.
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Top Industries Hiring
- Banking & Financial Services
- Manufacturing
- Technology & Software
- Construction & Real Estate
Mid Level App Developer Jobs: Frequently Asked Questions
How do I get a mid level app developer job?
Position your existing experience around ownership and impact, not just task completion. Highlight features or modules you led from design through deployment, decisions you made independently, and any mentoring or code review responsibility you've taken on. Tailor your resume to each posting's tech stack, and be prepared to walk through your architectural choices in technical interviews.
Which companies hire mid level app developers?
Companies hiring mid level app developers right now include Northwest Bank, Datadog, and THEMESOFT, based on current listings on Migrate Mate as of September 2026. Hiring at this level comes from a broad mix of established technology companies, retailers building out digital products, and startups that need developers who can work with real autonomy.
Are there remote mid level app developer jobs?
Yes, remote and hybrid options are widely available at this experience level. About 25% of mid level app developer openings are remote or hybrid as of September 2026, reflecting how comfortable most engineering teams have become managing experienced developers off-site. On-site roles do exist, particularly at companies with hardware integration or strict security requirements.
How do I move up to a mid level app developer role?
The path from junior to mid level is built on deepening specialization and expanding ownership over time. Focus on moving beyond assigned tickets toward understanding the full product, volunteering to lead small features, and asking for code review responsibilities. Demonstrable impact, such as measurable performance improvements or shipped releases you drove, is what hiring managers look for when evaluating whether someone is ready to step up.
Which industries hire the most mid level app developers?
Mid Level app developer roles concentrate in Banking & Financial Services, Manufacturing, and Technology & Software, based on current listings on Migrate Mate as of September 2026. These sectors drive consistent hiring at the mid level because they rely on iterative product development, require developers who can work independently on complex features, and have the engineering culture to support career growth beyond the junior stage.